diff --git a/packages/platform-sdk-ark/__tests__/dto/transaction.test.ts b/packages/platform-sdk-ark/__tests__/dto/transaction.test.ts
index bcd0ecd10c..75146b2e3a 100644
--- a/packages/platform-sdk-ark/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-ark/__tests__/dto/transaction.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/transaction.json";
@@ -26,11 +26,11 @@ describe("TransactionData", function () {
 	});
 
 	test("#confirmations", () => {
-		expect(subject.confirmations()).toEqual(BigNumber.make(4636121));
+		expect(subject.confirmations()).toEqual(Utils.BigNumber.make(4636121));
 	});
 
 	test("#nonce", () => {
-		expect(subject.nonce()).toEqual(BigNumber.make(1));
+		expect(subject.nonce()).toEqual(Utils.BigNumber.make(1));
 	});
 
 	test("#sender", () => {
@@ -42,7 +42,7 @@ describe("TransactionData", function () {
 	});
 
 	test("#amount", () => {
-		expect(subject.amount()).toEqual(BigNumber.make("12500000000000000"));
+		expect(subject.amount()).toEqual(Utils.BigNumber.make("12500000000000000"));
 	});
 
 	test("#fee", () => {
diff --git a/packages/platform-sdk-ark/__tests__/dto/wallet.test.ts b/packages/platform-sdk-ark/__tests__/dto/wallet.test.ts
index 5fe25071d1..12ce99397a 100644
--- a/packages/platform-sdk-ark/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-ark/__tests__/dto/wallet.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/wallet.json";
@@ -19,7 +19,7 @@ describe("WalletData", function () {
 	});
 
 	test("#balance", () => {
-		expect(subject.balance()).toEqual(BigNumber.make("55827093444556"));
+		expect(subject.balance()).toEqual(Utils.BigNumber.make("55827093444556"));
 	});
 
 	test("#toObject", () => {
diff --git a/packages/platform-sdk-ark/src/dto/transaction.ts b/packages/platform-sdk-ark/src/dto/transaction.ts
index 422ab895bc..3d9529ef97 100644
--- a/packages/platform-sdk-ark/src/dto/transaction.ts
+++ b/packages/platform-sdk-ark/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.timestamp.epoch;
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.make(this.data.confirmations);
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.confirmations);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.nonce);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.nonce);
 	}
 
 	public sender(): string {
@@ -34,19 +34,19 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.recipient;
 	}
 
-	public amount(): BigNumber {
+	public amount(): Utils.BigNumber {
 		if (this.data.typeGroup === 0 && this.data.type === 6) {
 			return this.data.asset.payments.reduce(
-				(sum: BigNumber, { amount }: { amount: string }) => sum.plus(amount),
-				BigNumber.ZERO,
+				(sum: Utils.BigNumber, { amount }: { amount: string }) => sum.add(amount),
+				Utils.BigNumber.ZERO,
 			);
 		}
 
-		return BigNumber.make(this.data.amount);
+		return Utils.BigNumber.make(this.data.amount);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.fee);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.fee);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-ark/src/dto/wallet.ts b/packages/platform-sdk-ark/src/dto/wallet.ts
index 57a3f12e91..d07e27c6a8 100644
--- a/packages/platform-sdk-ark/src/dto/wallet.ts
+++ b/packages/platform-sdk-ark/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return this.data.publicKey;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.nonce);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.nonce);
 	}
 }
diff --git a/packages/platform-sdk-atom/__tests__/dto/transaction.test.ts b/packages/platform-sdk-atom/__tests__/dto/transaction.test.ts
index 8978e1f38d..cc62a426b7 100644
--- a/packages/platform-sdk-atom/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-atom/__tests__/dto/transaction.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto/transaction";
 import Fixture from "../__fixtures__/client/transaction.json";
@@ -18,8 +18,8 @@ describe("TransactionData", function () {
 		expect(result.nonce()).toEqual(BigNumber.ZERO);
 		expect(result.sender()).toBe("cosmos1de7pk372jkp9vrul0gv5j6r3l9mt3wa6m4h6h0");
 		expect(result.recipient()).toBe("cosmos14ddvyl5t0hzmknceuv3zzu5szuum4rkygpq5ln");
-		expect(result.amount()).toEqual(BigNumber.make(10680));
-		expect(result.fee()).toEqual(BigNumber.make(36875));
+		expect(result.amount()).toEqual(Utils.BigNumber.make(10680));
+		expect(result.fee()).toEqual(Utils.BigNumber.make(36875));
 		expect(result.memo()).toBe("Hello World");
 		expect(result.blockId()).toBe("14990");
 	});
diff --git a/packages/platform-sdk-atom/__tests__/dto/wallet.test.ts b/packages/platform-sdk-atom/__tests__/dto/wallet.test.ts
index a33d54fb39..d8412e0055 100644
--- a/packages/platform-sdk-atom/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-atom/__tests__/dto/wallet.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto/wallet";
 import Fixture from "../__fixtures__/client/wallet.json";
@@ -12,7 +12,7 @@ describe("WalletData", function () {
 		expect(result).toBeInstanceOf(WalletData);
 		expect(result.address()).toBe("cosmos1de7pk372jkp9vrul0gv5j6r3l9mt3wa6m4h6h0");
 		expect(result.publicKey()).toBe("Ap65s+Jdgo8BtvTbkc7GyUti8yJ7RpZ7cE1zCuKgNeXY");
-		expect(result.balance()).toEqual(BigNumber.make(69519574));
-		expect(result.nonce()).toEqual(BigNumber.make(24242));
+		expect(result.balance()).toEqual(Utils.BigNumber.make(69519574));
+		expect(result.nonce()).toEqual(Utils.BigNumber.make(24242));
 	});
 });
diff --git a/packages/platform-sdk-atom/__tests__/services/client.test.ts b/packages/platform-sdk-atom/__tests__/services/client.test.ts
index 103fc49914..14b99ce5a5 100644
--- a/packages/platform-sdk-atom/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-atom/__tests__/services/client.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import nock from "nock";
 
 import { ClientService } from "../../src/services/client";
@@ -32,8 +32,8 @@ describe("ClientService", function () {
 			expect(result.nonce()).toEqual(BigNumber.ZERO);
 			expect(result.sender()).toBe("cosmos1de7pk372jkp9vrul0gv5j6r3l9mt3wa6m4h6h0");
 			expect(result.recipient()).toBe("cosmos14ddvyl5t0hzmknceuv3zzu5szuum4rkygpq5ln");
-			expect(result.amount()).toEqual(BigNumber.make(10680));
-			expect(result.fee()).toEqual(BigNumber.make(36875));
+			expect(result.amount()).toEqual(Utils.BigNumber.make(10680));
+			expect(result.fee()).toEqual(Utils.BigNumber.make(36875));
 			expect(result.memo()).toBe("Hello World");
 			expect(result.blockId()).toBe("14990");
 		});
@@ -59,8 +59,8 @@ describe("ClientService", function () {
 			expect(result.data[0].nonce()).toEqual(BigNumber.ZERO);
 			expect(result.data[0].sender()).toBe("cosmos1de7pk372jkp9vrul0gv5j6r3l9mt3wa6m4h6h0");
 			expect(result.data[0].recipient()).toBe("cosmos14ddvyl5t0hzmknceuv3zzu5szuum4rkygpq5ln");
-			expect(result.data[0].amount()).toEqual(BigNumber.make(10680));
-			expect(result.data[0].fee()).toEqual(BigNumber.make(36875));
+			expect(result.data[0].amount()).toEqual(Utils.BigNumber.make(10680));
+			expect(result.data[0].fee()).toEqual(Utils.BigNumber.make(36875));
 			expect(result.data[0].memo()).toBe("Hello World");
 			expect(result.data[0].blockId()).toBe("14990");
 		});
@@ -77,8 +77,8 @@ describe("ClientService", function () {
 			expect(result).toBeInstanceOf(WalletData);
 			expect(result.address()).toBe("cosmos1de7pk372jkp9vrul0gv5j6r3l9mt3wa6m4h6h0");
 			expect(result.publicKey()).toBe("Ap65s+Jdgo8BtvTbkc7GyUti8yJ7RpZ7cE1zCuKgNeXY");
-			expect(result.balance()).toEqual(BigNumber.make(69519574));
-			expect(result.nonce()).toEqual(BigNumber.make(24242));
+			expect(result.balance()).toEqual(Utils.BigNumber.make(69519574));
+			expect(result.nonce()).toEqual(Utils.BigNumber.make(24242));
 		});
 	});
 
diff --git a/packages/platform-sdk-atom/src/dto/transaction.ts b/packages/platform-sdk-atom/src/dto/transaction.ts
index 1fad6730cf..865cca4a98 100644
--- a/packages/platform-sdk-atom/src/dto/transaction.ts
+++ b/packages/platform-sdk-atom/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return +new Date(this.data.timestamp);
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.ZERO;
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
 	public sender(): string {
@@ -41,15 +41,15 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 	}
 
 	// @ts-ignore
-	public amount(): BigNumber {
+	public amount(): Utils.BigNumber {
 		const event = this.data.events.find((event) => event.type === "transfer");
 		const attribute = event.attributes.find((attribute) => attribute.key === "amount");
 
-		return BigNumber.make(attribute.value.replace(/\D/g, ""));
+		return Utils.BigNumber.make(attribute.value.replace(/\D/g, ""));
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.gas_used);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.gas_used);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-atom/src/dto/wallet.ts b/packages/platform-sdk-atom/src/dto/wallet.ts
index 0e8e3356fb..c90dc7de25 100644
--- a/packages/platform-sdk-atom/src/dto/wallet.ts
+++ b/packages/platform-sdk-atom/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return this.data.public_key.value;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.coins[0].amount.replace(/\D/g, ""));
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.coins[0].amount.replace(/\D/g, ""));
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.sequence);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.sequence);
 	}
 }
diff --git a/packages/platform-sdk-btc/__tests__/dto/transaction.test.ts b/packages/platform-sdk-btc/__tests__/dto/transaction.test.ts
index f09617b3c7..23caf92355 100644
--- a/packages/platform-sdk-btc/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-btc/__tests__/dto/transaction.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto/transaction";
 import Fixture from "../__fixtures__/client/transaction.json";
@@ -14,12 +14,12 @@ describe("TransactionData", function () {
 		expect(result.type()).toBeUndefined();
 		expect(result.typeGroup()).toBeUndefined();
 		expect(result.timestamp()).toBe(1561095453000);
-		expect(result.confirmations()).toEqual(BigNumber.make(159414));
+		expect(result.confirmations()).toEqual(Utils.BigNumber.make(159414));
 		expect(result.nonce()).toEqual(BigNumber.ZERO);
 		// expect(result.sender()).toBe("...");
 		// expect(result.recipient()).toBe("...");
-		expect(result.amount()).toEqual(BigNumber.make(3050000));
-		expect(result.fee()).toEqual(BigNumber.make(10000));
+		expect(result.amount()).toEqual(Utils.BigNumber.make(3050000));
+		expect(result.fee()).toEqual(Utils.BigNumber.make(10000));
 		expect(result.memo()).toBeUndefined();
 		expect(result.blockId()).toBe(1563778);
 	});
diff --git a/packages/platform-sdk-btc/__tests__/dto/wallet.test.ts b/packages/platform-sdk-btc/__tests__/dto/wallet.test.ts
index 8c4afc466c..b74e49b9ba 100644
--- a/packages/platform-sdk-btc/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-btc/__tests__/dto/wallet.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto/wallet";
 import Fixture from "../__fixtures__/client/wallet.json";
@@ -12,6 +12,6 @@ describe("WalletData", function () {
 		expect(result).toBeInstanceOf(WalletData);
 		expect(result.address()).toBe("my48EN4kDnGEpRZMBfiDS65wdfwfgCGZRz");
 		expect(result.publicKey()).toBe("76a914c05f53de525d80151e209a729cf1c7909c88f88e88ac");
-		expect(result.balance()).toEqual(BigNumber.make(3050000));
+		expect(result.balance()).toEqual(Utils.BigNumber.make(3050000));
 	});
 });
diff --git a/packages/platform-sdk-btc/__tests__/services/client.test.ts b/packages/platform-sdk-btc/__tests__/services/client.test.ts
index bad8bcf309..371c59f320 100644
--- a/packages/platform-sdk-btc/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-btc/__tests__/services/client.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import nock from "nock";
 
 import { ClientService } from "../../src/services/client";
@@ -29,12 +29,12 @@ describe("ClientService", function () {
 			expect(result.type()).toBeUndefined();
 			expect(result.typeGroup()).toBeUndefined();
 			expect(result.timestamp()).toBe(1561095453000);
-			expect(result.confirmations()).toEqual(BigNumber.make(159414));
+			expect(result.confirmations()).toEqual(Utils.BigNumber.make(159414));
 			expect(result.nonce()).toEqual(BigNumber.ZERO);
 			// expect(result.sender()).toBe("...");
 			// expect(result.recipient()).toBe("...");
-			expect(result.amount()).toEqual(BigNumber.make(3050000));
-			expect(result.fee()).toEqual(BigNumber.make(10000));
+			expect(result.amount()).toEqual(Utils.BigNumber.make(3050000));
+			expect(result.fee()).toEqual(Utils.BigNumber.make(10000));
 			expect(result.memo()).toBeUndefined();
 			expect(result.blockId()).toBe(1563778);
 		});
@@ -51,7 +51,7 @@ describe("ClientService", function () {
 			expect(result).toBeInstanceOf(WalletData);
 			expect(result.address()).toBe("my48EN4kDnGEpRZMBfiDS65wdfwfgCGZRz");
 			expect(result.publicKey()).toBe("76a914c05f53de525d80151e209a729cf1c7909c88f88e88ac");
-			expect(result.balance()).toEqual(BigNumber.make(3050000));
+			expect(result.balance()).toEqual(Utils.BigNumber.make(3050000));
 		});
 	});
 
diff --git a/packages/platform-sdk-btc/src/dto/transaction.ts b/packages/platform-sdk-btc/src/dto/transaction.ts
index cfbc43227b..aff276e4df 100644
--- a/packages/platform-sdk-btc/src/dto/transaction.ts
+++ b/packages/platform-sdk-btc/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return +new Date(this.data.blockTime);
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.make(this.data.confirmations);
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.confirmations);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
 	public sender(): string {
@@ -34,12 +34,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		throw new Exceptions.NotImplemented(this.constructor.name, "recipient");
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make(this.data.value);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.value);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.fee);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.fee);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-btc/src/dto/wallet.ts b/packages/platform-sdk-btc/src/dto/wallet.ts
index 4f5810f73c..b6c5dc7737 100644
--- a/packages/platform-sdk-btc/src/dto/wallet.ts
+++ b/packages/platform-sdk-btc/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return this.data.publicKey;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-btc/src/utils/unspent-aggregator.ts b/packages/platform-sdk-btc/src/utils/unspent-aggregator.ts
index 3163a09fd7..2f93359c1f 100644
--- a/packages/platform-sdk-btc/src/utils/unspent-aggregator.ts
+++ b/packages/platform-sdk-btc/src/utils/unspent-aggregator.ts
@@ -18,7 +18,7 @@ export class UnspentAggregator {
 		//
 	}
 
-	public async aggregate(address: string, amount: BigNumber): Promise<UnspentTransaction[]> {
+	public async aggregate(address: string, amount: Utils.BigNumber): Promise<UnspentTransaction[]> {
 		const response = await Utils.Http.new(this.#peer).get(`wallets/${address}/transactions/unspent`);
 
 		return response.map((transaction) => ({
diff --git a/packages/platform-sdk-eos/src/dto/transaction.ts b/packages/platform-sdk-eos/src/dto/transaction.ts
index e814e7f71c..7f37f5b2c9 100644
--- a/packages/platform-sdk-eos/src/dto/transaction.ts
+++ b/packages/platform-sdk-eos/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return undefined;
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.make(0);
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.make(0);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.nonce);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.nonce);
 	}
 
 	public sender(): string {
@@ -34,12 +34,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.to;
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make(this.data.value);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.value);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.gas);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.gas);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-eos/src/dto/wallet.ts b/packages/platform-sdk-eos/src/dto/wallet.ts
index 143d633580..ad6eed6654 100644
--- a/packages/platform-sdk-eos/src/dto/wallet.ts
+++ b/packages/platform-sdk-eos/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return undefined;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.net_weight);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.net_weight);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-eth/__tests__/dto/transaction.test.ts b/packages/platform-sdk-eth/__tests__/dto/transaction.test.ts
index 2403421f23..05fda76ef7 100644
--- a/packages/platform-sdk-eth/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-eth/__tests__/dto/transaction.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/transaction.json";
@@ -42,11 +42,11 @@ describe("TransactionData", function () {
 	});
 
 	test("#amount", () => {
-		expect(subject.amount()).toEqual(BigNumber.make("79000000000000"));
+		expect(subject.amount()).toEqual(Utils.BigNumber.make("79000000000000"));
 	});
 
 	test("#fee", () => {
-		expect(subject.fee()).toEqual(BigNumber.make("21000"));
+		expect(subject.fee()).toEqual(Utils.BigNumber.make("21000"));
 	});
 
 	test("#memo", () => {
diff --git a/packages/platform-sdk-eth/__tests__/dto/wallet.test.ts b/packages/platform-sdk-eth/__tests__/dto/wallet.test.ts
index 5f698eb586..932f96a3c6 100644
--- a/packages/platform-sdk-eth/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-eth/__tests__/dto/wallet.test.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto";
 
@@ -16,6 +16,6 @@ describe("WalletData", function () {
 	});
 
 	test("#balance", () => {
-		expect(subject.balance()).toEqual(BigNumber.make("10"));
+		expect(subject.balance()).toEqual(Utils.BigNumber.make("10"));
 	});
 });
diff --git a/packages/platform-sdk-eth/__tests__/services/client.test.ts b/packages/platform-sdk-eth/__tests__/services/client.test.ts
index aaa14e8d60..3943aaf9ed 100644
--- a/packages/platform-sdk-eth/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-eth/__tests__/services/client.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import nock from "nock";
 
 import { ClientService } from "../../src/services/client";
@@ -33,8 +33,8 @@ describe("ClientService", function () {
 			expect(result.nonce()).toEqual(BigNumber.ZERO);
 			expect(result.sender()).toBe("0x4581A610f96878266008993475F1476cA9997081");
 			expect(result.recipient()).toBe("0x230b2A8C0CcE28fd6eFF491c47aeBa244b10A12c");
-			expect(result.amount()).toEqual(BigNumber.make("79000000000000"));
-			expect(result.fee()).toEqual(BigNumber.make(21000));
+			expect(result.amount()).toEqual(Utils.BigNumber.make("79000000000000"));
+			expect(result.fee()).toEqual(Utils.BigNumber.make(21000));
 			expect(result.memo()).toBeUndefined();
 			expect(result.blockId()).toBe(7623266);
 		});
@@ -69,8 +69,8 @@ describe("ClientService", function () {
 			expect(result).toBeInstanceOf(WalletData);
 			expect(result.address()).toBe("0x33605918275099dfEF77A56e4e8C0103b881d584");
 			expect(result.publicKey()).toBeUndefined();
-			expect(result.balance()).toEqual(BigNumber.make("3998865647999999997"));
-			expect(result.nonce()).toEqual(BigNumber.make(9));
+			expect(result.balance()).toEqual(Utils.BigNumber.make("3998865647999999997"));
+			expect(result.nonce()).toEqual(Utils.BigNumber.make(9));
 		});
 	});
 
diff --git a/packages/platform-sdk-eth/src/dto/transaction.ts b/packages/platform-sdk-eth/src/dto/transaction.ts
index c9f64093ca..25c7ce332e 100644
--- a/packages/platform-sdk-eth/src/dto/transaction.ts
+++ b/packages/platform-sdk-eth/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return undefined;
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.make(0);
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.make(0);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(parseInt(this.data.nonce, 16));
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(parseInt(this.data.nonce, 16));
 	}
 
 	public sender(): string {
@@ -34,12 +34,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.to;
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make(this.data.value);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.value);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.gas);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.gas);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-eth/src/dto/wallet.ts b/packages/platform-sdk-eth/src/dto/wallet.ts
index 3df886af65..1cb9dcbaf1 100644
--- a/packages/platform-sdk-eth/src/dto/wallet.ts
+++ b/packages/platform-sdk-eth/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return undefined;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(parseInt(this.data.nonce, 16));
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(parseInt(this.data.nonce, 16));
 	}
 }
diff --git a/packages/platform-sdk-lsk/__tests__/dto/transaction.test.ts b/packages/platform-sdk-lsk/__tests__/dto/transaction.test.ts
index 8ad1903138..38421ca4a7 100644
--- a/packages/platform-sdk-lsk/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-lsk/__tests__/dto/transaction.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/transaction.json";
@@ -26,7 +26,7 @@ describe("TransactionData", function () {
 	});
 
 	test("#confirmations", () => {
-		expect(subject.confirmations()).toEqual(BigNumber.make(35754));
+		expect(subject.confirmations()).toEqual(Utils.BigNumber.make(35754));
 	});
 
 	test("#nonce", () => {
@@ -42,11 +42,11 @@ describe("TransactionData", function () {
 	});
 
 	test("#amount", () => {
-		expect(subject.amount()).toEqual(BigNumber.make("1"));
+		expect(subject.amount()).toEqual(Utils.BigNumber.make("1"));
 	});
 
 	test("#fee", () => {
-		expect(subject.fee()).toEqual(BigNumber.make("10000000"));
+		expect(subject.fee()).toEqual(Utils.BigNumber.make("10000000"));
 	});
 
 	test("#memo", () => {
diff --git a/packages/platform-sdk-lsk/__tests__/dto/wallet.test.ts b/packages/platform-sdk-lsk/__tests__/dto/wallet.test.ts
index 6719513c00..907414dac3 100644
--- a/packages/platform-sdk-lsk/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-lsk/__tests__/dto/wallet.test.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/wallet.json";
@@ -17,6 +17,6 @@ describe("WalletData", function () {
 	});
 
 	test("#balance", () => {
-		expect(subject.balance()).toEqual(BigNumber.make("-9999333679754263"));
+		expect(subject.balance()).toEqual(Utils.BigNumber.make("-9999333679754263"));
 	});
 });
diff --git a/packages/platform-sdk-lsk/src/dto/transaction.ts b/packages/platform-sdk-lsk/src/dto/transaction.ts
index 9dc09aeb9d..04d67d0f50 100644
--- a/packages/platform-sdk-lsk/src/dto/transaction.ts
+++ b/packages/platform-sdk-lsk/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.timestamp;
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.make(this.data.confirmations);
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.confirmations);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
 	public sender(): string {
@@ -34,12 +34,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.recipientId;
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make(this.data.amount);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.amount);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.make(this.data.fee);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.fee);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-lsk/src/dto/wallet.ts b/packages/platform-sdk-lsk/src/dto/wallet.ts
index e0bb097028..1da5317a3e 100644
--- a/packages/platform-sdk-lsk/src/dto/wallet.ts
+++ b/packages/platform-sdk-lsk/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return this.data.publicKey;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-neo/__tests__/dto/transaction.test.ts b/packages/platform-sdk-neo/__tests__/dto/transaction.test.ts
index 0ea6993da3..6f50bae17f 100644
--- a/packages/platform-sdk-neo/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-neo/__tests__/dto/transaction.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto/transaction";
 
@@ -25,7 +25,7 @@ describe("TransactionData", function () {
 		expect(result.nonce()).toEqual(BigNumber.ZERO);
 		expect(result.sender()).toBe("AStJyBXGGBK6bwrRfRUHSjp993PB5C9QgF");
 		expect(result.recipient()).toBe("Ab9QkPeMzx7ehptvjbjHviAXUfdhAmEAUF");
-		expect(result.amount()).toEqual(BigNumber.make(1));
+		expect(result.amount()).toEqual(Utils.BigNumber.make(1));
 		expect(result.fee()).toEqual(BigNumber.ZERO);
 		// expect(result.memo()).toBeUndefined();
 		expect(result.blockId()).toBe(4259222);
diff --git a/packages/platform-sdk-neo/__tests__/services/client.test.ts b/packages/platform-sdk-neo/__tests__/services/client.test.ts
index c424fe98f7..bd42cbc2cc 100644
--- a/packages/platform-sdk-neo/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-neo/__tests__/services/client.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import nock from "nock";
 
 import { ClientService } from "../../src/services/client";
@@ -32,7 +32,7 @@ describe("ClientService", function () {
 			expect(result.data[0].nonce()).toEqual(BigNumber.ZERO);
 			expect(result.data[0].sender()).toBe("AStJyBXGGBK6bwrRfRUHSjp993PB5C9QgF");
 			expect(result.data[0].recipient()).toBe("Ab9QkPeMzx7ehptvjbjHviAXUfdhAmEAUF");
-			expect(result.data[0].amount()).toEqual(BigNumber.make(1));
+			expect(result.data[0].amount()).toEqual(Utils.BigNumber.make(1));
 			expect(result.data[0].fee()).toEqual(BigNumber.ZERO);
 			// expect(result.data[0].memo()).toBeUndefined();
 			expect(result.data[0].blockId()).toBe(4259222);
diff --git a/packages/platform-sdk-neo/src/dto/transaction.ts b/packages/platform-sdk-neo/src/dto/transaction.ts
index f3e1b99f12..80a55fce54 100644
--- a/packages/platform-sdk-neo/src/dto/transaction.ts
+++ b/packages/platform-sdk-neo/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,12 +18,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return +new Date(this.data.time);
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.ZERO;
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
 	public sender(): string {
@@ -34,12 +34,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.address_to;
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make(this.data.amount);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.amount);
 	}
 
-	public fee(): BigNumber {
-		return BigNumber.ZERO;
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-neo/src/dto/wallet.ts b/packages/platform-sdk-neo/src/dto/wallet.ts
index 6b07f0bd12..fce545738a 100644
--- a/packages/platform-sdk-neo/src/dto/wallet.ts
+++ b/packages/platform-sdk-neo/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		throw new Exceptions.NotImplemented(this.constructor.name, "publicKey");
 	}
 
-	public balance(): BigNumber {
+	public balance(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "balance");
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-trx/__tests__/dto/wallet.test.ts b/packages/platform-sdk-trx/__tests__/dto/wallet.test.ts
index 3a1c764f89..fe52f76f6a 100644
--- a/packages/platform-sdk-trx/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-trx/__tests__/dto/wallet.test.ts
@@ -1,4 +1,4 @@
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto";
 import Fixture from "../__fixtures__/client/wallet.json";
@@ -17,6 +17,6 @@ describe("WalletData", function () {
 	});
 
 	test("#balance", () => {
-		expect(subject.balance()).toEqual(BigNumber.make("17491629"));
+		expect(subject.balance()).toEqual(Utils.BigNumber.make("17491629"));
 	});
 });
diff --git a/packages/platform-sdk-trx/src/dto/transaction.ts b/packages/platform-sdk-trx/src/dto/transaction.ts
index 88ceeca81b..87213fa86d 100644
--- a/packages/platform-sdk-trx/src/dto/transaction.ts
+++ b/packages/platform-sdk-trx/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,11 +18,11 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		throw new Exceptions.NotImplemented(this.constructor.name, "timestamp");
 	}
 
-	public confirmations(): BigNumber {
+	public confirmations(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "confirmations");
 	}
 
-	public nonce(): BigNumber {
+	public nonce(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "nonce");
 	}
 
@@ -34,11 +34,11 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		throw new Exceptions.NotImplemented(this.constructor.name, "recipient");
 	}
 
-	public amount(): BigNumber {
+	public amount(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "amount");
 	}
 
-	public fee(): BigNumber {
+	public fee(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "fee");
 	}
 
diff --git a/packages/platform-sdk-trx/src/dto/wallet.ts b/packages/platform-sdk-trx/src/dto/wallet.ts
index 1e76f60022..ffd878cc5b 100644
--- a/packages/platform-sdk-trx/src/dto/wallet.ts
+++ b/packages/platform-sdk-trx/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return undefined;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-xlm/__tests__/services/client.test.ts b/packages/platform-sdk-xlm/__tests__/services/client.test.ts
index 6029e788dd..1b525da8ec 100644
--- a/packages/platform-sdk-xlm/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-xlm/__tests__/services/client.test.ts
@@ -1,5 +1,5 @@
 import "jest-extended";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import nock from "nock";
 
 import { ClientService } from "../../src/services/client";
@@ -35,12 +35,12 @@ describe("ClientService", function () {
 			// expect(result.type()).toBeUndefined();
 			// expect(result.typeGroup()).toBeUndefined();
 			expect(result.timestamp()).toBe(1554840865000);
-			// expect(result.confirmations()).toEqual(BigNumber.make(159414));
-			expect(result.nonce()).toEqual(BigNumber.make("4660039994869"));
+			// expect(result.confirmations()).toEqual(Utils.BigNumber.make(159414));
+			expect(result.nonce()).toEqual(Utils.BigNumber.make("4660039994869"));
 			expect(result.sender()).toBe("GAHXEI3BVFOBDHWLC4TJKCGTLY6VMTKMRRWWPKNPPULUC7E3PD63ENKO");
 			expect(result.recipient()).toBe("GB2V4J7WTTKLIN5O3QPUAQCOLLIIULJM3FHHAQ7GEQ5EH53BXXQ47HU3");
-			expect(result.amount()).toEqual(BigNumber.make("100000000"));
-			expect(result.fee()).toEqual(BigNumber.make("10000000000"));
+			expect(result.amount()).toEqual(Utils.BigNumber.make("100000000"));
+			expect(result.fee()).toEqual(Utils.BigNumber.make("10000000000"));
 			// expect(result.memo()).toBeUndefined();
 			// expect(result.blockId()).toBe(1563778);
 		});
@@ -63,12 +63,12 @@ describe("ClientService", function () {
 			// expect(data[0].type()).toBeUndefined();
 			// expect(data[0].typeGroup()).toBeUndefined();
 			expect(data[0].timestamp()).toBe(1554505662000);
-			// expect(data[0].confirmations()).toEqual(BigNumber.make(159414));
+			// expect(data[0].confirmations()).toEqual(Utils.BigNumber.make(159414));
 			expect(data[0].nonce()).toEqual(BigNumber.ZERO);
 			expect(data[0].sender()).toBe("GAGLYFZJMN5HEULSTH5CIGPOPAVUYPG5YSWIYDJMAPIECYEBPM2TA3QR");
 			expect(data[0].recipient()).toBe("GBYUUJHG6F4EPJGNLERINATVQLNDOFRUD7SGJZ26YZLG5PAYLG7XUSGF");
-			expect(data[0].amount()).toEqual(BigNumber.make("100000000000000"));
-			// expect(data[0].fee()).toEqual(BigNumber.make("10000000000"));
+			expect(data[0].amount()).toEqual(Utils.BigNumber.make("100000000000000"));
+			// expect(data[0].fee()).toEqual(Utils.BigNumber.make("10000000000"));
 			// expect(data[0].memo()).toBeUndefined();
 			// expect(data[0].blockId()).toBe(1563778);
 		});
@@ -86,8 +86,8 @@ describe("ClientService", function () {
 			expect(result).toBeInstanceOf(WalletData);
 			expect(result.address()).toBe("GD42RQNXTRIW6YR3E2HXV5T2AI27LBRHOERV2JIYNFMXOBA234SWLQQB");
 			expect(result.publicKey()).toBe("GD42RQNXTRIW6YR3E2HXV5T2AI27LBRHOERV2JIYNFMXOBA234SWLQQB");
-			expect(result.balance()).toEqual(BigNumber.make("100000000000000"));
-			expect(result.nonce()).toEqual(BigNumber.make("7275146318446606"));
+			expect(result.balance()).toEqual(Utils.BigNumber.make("100000000000000"));
+			expect(result.nonce()).toEqual(Utils.BigNumber.make("7275146318446606"));
 		});
 	});
 
diff --git a/packages/platform-sdk-xlm/src/dto/transaction.ts b/packages/platform-sdk-xlm/src/dto/transaction.ts
index d603d73da8..b43b756875 100644
--- a/packages/platform-sdk-xlm/src/dto/transaction.ts
+++ b/packages/platform-sdk-xlm/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,17 +18,17 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return +new Date(this.data.created_at);
 	}
 
-	public confirmations(): BigNumber {
+	public confirmations(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "confirmations");
 	}
 
 	// todo: with the "transaction" method we get a nonce but with "transactions" it isn't available
-	public nonce(): BigNumber {
+	public nonce(): Utils.BigNumber {
 		if (this.data.source_account_sequence) {
-			return BigNumber.make(this.data.source_account_sequence);
+			return Utils.BigNumber.make(this.data.source_account_sequence);
 		}
 
-		return BigNumber.ZERO;
+		return Utils.BigNumber.ZERO;
 	}
 
 	public sender(): string {
@@ -39,13 +39,13 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.to || this.data.operation.to;
 	}
 
-	public amount(): BigNumber {
-		return BigNumber.make((this.data.amount || this.data.operation.amount) * 1e8);
+	public amount(): Utils.BigNumber {
+		return Utils.BigNumber.make((this.data.amount || this.data.operation.amount) * 1e8);
 	}
 
 	// todo: with the "transaction" method we get a nonce but with "transactions" it isn't available
-	public fee(): BigNumber {
-		return BigNumber.make((this.data.fee_charged || 0) * 1e8);
+	public fee(): Utils.BigNumber {
+		return Utils.BigNumber.make((this.data.fee_charged || 0) * 1e8);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-xlm/src/dto/wallet.ts b/packages/platform-sdk-xlm/src/dto/wallet.ts
index 5a21ff1315..cfdd97df28 100644
--- a/packages/platform-sdk-xlm/src/dto/wallet.ts
+++ b/packages/platform-sdk-xlm/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		return this.data.id;
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balances[0].balance * 1e8);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balances[0].balance * 1e8);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.sequence);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.sequence);
 	}
 }
diff --git a/packages/platform-sdk-xmr/src/dto/transaction.ts b/packages/platform-sdk-xmr/src/dto/transaction.ts
index 88ceeca81b..87213fa86d 100644
--- a/packages/platform-sdk-xmr/src/dto/transaction.ts
+++ b/packages/platform-sdk-xmr/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
 	public id(): string {
@@ -18,11 +18,11 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		throw new Exceptions.NotImplemented(this.constructor.name, "timestamp");
 	}
 
-	public confirmations(): BigNumber {
+	public confirmations(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "confirmations");
 	}
 
-	public nonce(): BigNumber {
+	public nonce(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "nonce");
 	}
 
@@ -34,11 +34,11 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		throw new Exceptions.NotImplemented(this.constructor.name, "recipient");
 	}
 
-	public amount(): BigNumber {
+	public amount(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "amount");
 	}
 
-	public fee(): BigNumber {
+	public fee(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "fee");
 	}
 
diff --git a/packages/platform-sdk-xmr/src/dto/wallet.ts b/packages/platform-sdk-xmr/src/dto/wallet.ts
index 6b07f0bd12..fce545738a 100644
--- a/packages/platform-sdk-xmr/src/dto/wallet.ts
+++ b/packages/platform-sdk-xmr/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		throw new Exceptions.NotImplemented(this.constructor.name, "publicKey");
 	}
 
-	public balance(): BigNumber {
+	public balance(): Utils.BigNumber {
 		throw new Exceptions.NotImplemented(this.constructor.name, "balance");
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk-xrp/__tests__/dto/transaction.test.ts b/packages/platform-sdk-xrp/__tests__/dto/transaction.test.ts
index 595b62555f..6d3452a78e 100644
--- a/packages/platform-sdk-xrp/__tests__/dto/transaction.test.ts
+++ b/packages/platform-sdk-xrp/__tests__/dto/transaction.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { TransactionData } from "../../src/dto/transaction";
 import fixtures from "../services/fixtures/responses";
@@ -15,11 +15,11 @@ describe("TransactionData", function () {
 		// expect(result.typeGroup()).toBeUndefined();
 		expect(result.timestamp()).toBe(1363132610000);
 		expect(result.confirmations()).toEqual(BigNumber.ZERO);
-		expect(result.nonce()).toEqual(BigNumber.make(4));
+		expect(result.nonce()).toEqual(Utils.BigNumber.make(4));
 		expect(result.sender()).toBe("r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59");
 		expect(result.recipient()).toBe("rMH4UxPrbuMa1spCBR98hLLyNJp4d8p4tM");
-		expect(result.amount()).toEqual(BigNumber.make(100000));
-		expect(result.fee()).toEqual(BigNumber.make(1000));
+		expect(result.amount()).toEqual(Utils.BigNumber.make(100000));
+		expect(result.fee()).toEqual(Utils.BigNumber.make(1000));
 		// expect(result.memo()).toBeUndefined();
 		// expect(result.blockId()).toBeUndefined();
 	});
diff --git a/packages/platform-sdk-xrp/__tests__/dto/wallet.test.ts b/packages/platform-sdk-xrp/__tests__/dto/wallet.test.ts
index c5a5b82dcb..5078c9d87b 100644
--- a/packages/platform-sdk-xrp/__tests__/dto/wallet.test.ts
+++ b/packages/platform-sdk-xrp/__tests__/dto/wallet.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import { WalletData } from "../../src/dto/wallet";
 import fixtures from "../services/fixtures/responses";
@@ -15,6 +15,6 @@ describe("WalletData", function () {
 		expect(result).toBeInstanceOf(WalletData);
 		expect(result.address()).toEqual("rMWnHRpSWTYSsxbDjASvGvC31F4pRkyYHP");
 		// expect(result.publicKey()).toBeUndefined();
-		expect(result.balance()).toEqual(BigNumber.make("92291324300"));
+		expect(result.balance()).toEqual(Utils.BigNumber.make("92291324300"));
 	});
 });
diff --git a/packages/platform-sdk-xrp/__tests__/services/client.test.ts b/packages/platform-sdk-xrp/__tests__/services/client.test.ts
index 98c7d66cee..221c3be1f1 100644
--- a/packages/platform-sdk-xrp/__tests__/services/client.test.ts
+++ b/packages/platform-sdk-xrp/__tests__/services/client.test.ts
@@ -1,6 +1,6 @@
 import "jest-extended";
 import WebSocket from "ws";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 import fixtures from "./fixtures/rippled";
 
@@ -98,11 +98,11 @@ describe("ClientService", function () {
 			// expect(result.typeGroup()).toBeUndefined();
 			expect(result.timestamp()).toBe(1363132610000);
 			expect(result.confirmations()).toEqual(BigNumber.ZERO);
-			expect(result.nonce()).toEqual(BigNumber.make(4));
+			expect(result.nonce()).toEqual(Utils.BigNumber.make(4));
 			expect(result.sender()).toBe("r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59");
 			expect(result.recipient()).toBe("rMH4UxPrbuMa1spCBR98hLLyNJp4d8p4tM");
-			expect(result.amount()).toEqual(BigNumber.make(100000));
-			expect(result.fee()).toEqual(BigNumber.make(1000));
+			expect(result.amount()).toEqual(Utils.BigNumber.make(100000));
+			expect(result.fee()).toEqual(Utils.BigNumber.make(1000));
 			// expect(result.memo()).toBeUndefined();
 			// expect(result.blockId()).toBeUndefined();
 		});
@@ -127,7 +127,7 @@ describe("ClientService", function () {
 			expect(result).toBeInstanceOf(WalletData);
 			expect(result.address()).toEqual("rMWnHRpSWTYSsxbDjASvGvC31F4pRkyYHP");
 			// expect(result.publicKey()).toBeUndefined();
-			expect(result.balance()).toEqual(BigNumber.make("92291324300"));
+			expect(result.balance()).toEqual(Utils.BigNumber.make("92291324300"));
 		});
 	});
 
diff --git a/packages/platform-sdk-xrp/src/dto/transaction.ts b/packages/platform-sdk-xrp/src/dto/transaction.ts
index 7fc337e811..3af2b12fdb 100644
--- a/packages/platform-sdk-xrp/src/dto/transaction.ts
+++ b/packages/platform-sdk-xrp/src/dto/transaction.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 import BN from "bignumber.js";
 
 export class TransactionData extends DTO.AbstractTransactionData implements Contracts.TransactionData {
@@ -19,12 +19,12 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return +new Date(this.data.outcome.timestamp);
 	}
 
-	public confirmations(): BigNumber {
-		return BigNumber.ZERO;
+	public confirmations(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.make(this.data.sequence);
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.sequence);
 	}
 
 	public sender(): string {
@@ -35,16 +35,16 @@ export class TransactionData extends DTO.AbstractTransactionData implements Cont
 		return this.data.specification.destination.address;
 	}
 
-	public amount(): BigNumber {
+	public amount(): Utils.BigNumber {
 		const satoshi: string = new BN(this.data.outcome.deliveredAmount.value).times(1e8).toFixed();
 
-		return BigNumber.make(satoshi);
+		return Utils.BigNumber.make(satoshi);
 	}
 
-	public fee(): BigNumber {
+	public fee(): Utils.BigNumber {
 		const satoshi: string = new BN(this.data.outcome.fee).times(1e8).toFixed();
 
-		return BigNumber.make(satoshi);
+		return Utils.BigNumber.make(satoshi);
 	}
 
 	public memo(): string | undefined {
diff --git a/packages/platform-sdk-xrp/src/dto/wallet.ts b/packages/platform-sdk-xrp/src/dto/wallet.ts
index cefb51f21f..d4a4252c94 100644
--- a/packages/platform-sdk-xrp/src/dto/wallet.ts
+++ b/packages/platform-sdk-xrp/src/dto/wallet.ts
@@ -1,5 +1,5 @@
 import { Contracts, DTO, Exceptions } from "@arkecosystem/platform-sdk";
-import { BigNumber } from "@arkecosystem/utils";
+import { Utils } from "@arkecosystem/platform-sdk";
 
 export class WalletData extends DTO.AbstractWalletData implements Contracts.WalletData {
 	public address(): string {
@@ -10,11 +10,11 @@ export class WalletData extends DTO.AbstractWalletData implements Contracts.Wall
 		throw new Exceptions.NotImplemented(this.constructor.name, "publicKey");
 	}
 
-	public balance(): BigNumber {
-		return BigNumber.make(this.data.balance * 1e8);
+	public balance(): Utils.BigNumber {
+		return Utils.BigNumber.make(this.data.balance * 1e8);
 	}
 
-	public nonce(): BigNumber {
-		return BigNumber.ZERO;
+	public nonce(): Utils.BigNumber {
+		return Utils.BigNumber.ZERO;
 	}
 }
diff --git a/packages/platform-sdk/src/contracts/coins/data.ts b/packages/platform-sdk/src/contracts/coins/data.ts
index c89e604183..572de040bb 100644
--- a/packages/platform-sdk/src/contracts/coins/data.ts
+++ b/packages/platform-sdk/src/contracts/coins/data.ts
@@ -1,5 +1,4 @@
-import { BigNumber } from "@arkecosystem/utils";
-
+import { BigNumber } from "../../utils";
 import { KeyValuePair } from "../types";
 
 export interface TransactionData {
diff --git a/packages/platform-sdk/src/dto/transaction.ts b/packages/platform-sdk/src/dto/transaction.ts
index 50a1192bc2..3b42556a7d 100644
--- a/packages/platform-sdk/src/dto/transaction.ts
+++ b/packages/platform-sdk/src/dto/transaction.ts
@@ -1,6 +1,5 @@
-import { BigNumber } from "@arkecosystem/utils";
-
 import { KeyValuePair } from "../contracts/types";
+import { BigNumber } from "../utils";
 
 export abstract class AbstractTransactionData {
 	public constructor(protected readonly data: KeyValuePair) {}
diff --git a/packages/platform-sdk/src/dto/wallet.ts b/packages/platform-sdk/src/dto/wallet.ts
index 41275e51d9..a1786422bf 100644
--- a/packages/platform-sdk/src/dto/wallet.ts
+++ b/packages/platform-sdk/src/dto/wallet.ts
@@ -1,6 +1,5 @@
-import { BigNumber } from "@arkecosystem/utils";
-
 import { KeyValuePair } from "../contracts/types";
+import { BigNumber } from "../utils";
 
 export abstract class AbstractWalletData {
 	public constructor(protected readonly data: KeyValuePair) {}
diff --git a/packages/platform-sdk/src/utils/bignumber.ts b/packages/platform-sdk/src/utils/bignumber.ts
index 7e66795b1e..d9ea00a186 100644
--- a/packages/platform-sdk/src/utils/bignumber.ts
+++ b/packages/platform-sdk/src/utils/bignumber.ts
@@ -5,6 +5,10 @@ import { NumberLike } from "../contracts";
 // This implementation is significantly slower than the native BigInt but for
 // applications that use the Platform SDK this performance loss is acceptable.
 export class BigNumber {
+	public static readonly ZERO: BigNumber = new BigNumber(0);
+	public static readonly ONE: BigNumber = new BigNumber(1);
+	public static readonly SATOSHI: BigNumber = new BigNumber(1e8);
+
 	#value: BigNumberJS;
 	#decimals = 8;