diff --git a/module-application/src/main/java/com/devtoon/jtoon/payment/application/PaymentApplicationService.java b/module-application/src/main/java/com/devtoon/jtoon/payment/application/PaymentApplicationService.java
index 2ecc4a5e..df14cb9a 100644
--- a/module-application/src/main/java/com/devtoon/jtoon/payment/application/PaymentApplicationService.java
+++ b/module-application/src/main/java/com/devtoon/jtoon/payment/application/PaymentApplicationService.java
@@ -5,11 +5,9 @@
 
 import org.springframework.stereotype.Service;
 
-import com.devtoon.jtoon.global.common.MemberThreadLocal;
-import com.devtoon.jtoon.member.entity.Member;
 import com.devtoon.jtoon.payment.request.PaymentReq;
 import com.devtoon.jtoon.payment.service.IamportService;
-import com.devtoon.jtoon.payment.service.PaymentInfoService;
+import com.devtoon.jtoon.payment.service.PaymentInfoDomainService;
 import com.siot.IamportRestClient.exception.IamportResponseException;
 
 import lombok.RequiredArgsConstructor;
@@ -18,13 +16,12 @@
 @RequiredArgsConstructor
 public class PaymentApplicationService {
 
-	private final PaymentInfoService paymentInfoService;
 	private final IamportService iamportService;
+	private final PaymentInfoDomainService paymentInfoDomainService;
 
 	public BigDecimal validatePayment(PaymentReq paymentReq) throws IamportResponseException, IOException {
-		Member member = MemberThreadLocal.getMember();
 		iamportService.validateIamport(paymentReq);
 
-		return paymentInfoService.createPayment(paymentReq, member);
+		return paymentInfoDomainService.createPayment(paymentReq);
 	}
 }
diff --git a/module-domain/src/main/java/com/devtoon/jtoon/payment/service/IamportService.java b/module-domain/src/main/java/com/devtoon/jtoon/payment/service/IamportService.java
index 6f7bdab8..90f0867e 100644
--- a/module-domain/src/main/java/com/devtoon/jtoon/payment/service/IamportService.java
+++ b/module-domain/src/main/java/com/devtoon/jtoon/payment/service/IamportService.java
@@ -1,6 +1,7 @@
 package com.devtoon.jtoon.payment.service;
 
 import java.io.IOException;
+import java.math.BigDecimal;
 
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
@@ -20,21 +21,22 @@
 public class IamportService {
 
 	private final IamportClient iamportClient;
-	private final PaymentInfoService paymentInfoService;
+	private final PaymentInfoDomainService paymentInfoDomainService;
 
 	public IamportService(
 		@Value("${pg.kg-inicis.rest-api-key}") String restApiKey,
 		@Value("${pg.kg-inicis.rest-api-secret}") String restSecretKey,
-		PaymentInfoService paymentInfoService
+		PaymentInfoDomainService paymentInfoDomainService
 	) {
 		this.iamportClient = new IamportClient(restApiKey, restSecretKey);
-		this.paymentInfoService = paymentInfoService;
+		this.paymentInfoDomainService = paymentInfoDomainService;
 	}
 
 	public IamportResponse<Payment> cancelPayment(CancelReq cancelReq)
 		throws IamportResponseException, IOException {
 		IamportResponse<Payment> irsp = iamportClient.paymentByImpUid(cancelReq.impUid());
-		paymentInfoService.validateAmount(irsp, cancelReq.checksum());
+		BigDecimal realAmount = irsp.getResponse().getAmount();
+		paymentInfoDomainService.validateAmount(realAmount, cancelReq.checksum());
 		CancelData cancelData = cancelReq.toCancelData(irsp);
 
 		return iamportClient.cancelPaymentByImpUid(cancelData);
@@ -42,10 +44,11 @@ public IamportResponse<Payment> cancelPayment(CancelReq cancelReq)
 
 	public void validateIamport(PaymentReq paymentReq) throws IamportResponseException, IOException {
 		IamportResponse<Payment> irsp = iamportClient.paymentByImpUid(paymentReq.impUid());
+		BigDecimal realAmount = irsp.getResponse().getAmount();
 		CookieItem cookieItem = CookieItem.from(paymentReq.cookieItem());
-		paymentInfoService.validateAmount(irsp, cookieItem.getAmount());
-		paymentInfoService.validateAmount(irsp, paymentReq.amount());
-		paymentInfoService.validateImpUid(paymentReq);
-		paymentInfoService.validateMerchantUid(paymentReq);
+		paymentInfoDomainService.validateAmount(realAmount, cookieItem.getAmount());
+		paymentInfoDomainService.validateAmount(realAmount, paymentReq.amount());
+		paymentInfoDomainService.validateImpUid(paymentReq);
+		paymentInfoDomainService.validateMerchantUid(paymentReq);
 	}
 }
diff --git a/module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoService.java b/module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoDomainService.java
similarity index 83%
rename from module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoService.java
rename to module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoDomainService.java
index 32bdc912..8c00b99a 100644
--- a/module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoService.java
+++ b/module-domain/src/main/java/com/devtoon/jtoon/payment/service/PaymentInfoDomainService.java
@@ -8,6 +8,7 @@
 import com.devtoon.jtoon.error.exception.DuplicatedException;
 import com.devtoon.jtoon.error.exception.InvalidRequestException;
 import com.devtoon.jtoon.error.model.ErrorStatus;
+import com.devtoon.jtoon.global.common.MemberThreadLocal;
 import com.devtoon.jtoon.member.entity.Member;
 import com.devtoon.jtoon.member.entity.MemberCookie;
 import com.devtoon.jtoon.payment.entity.CookieItem;
@@ -15,21 +16,20 @@
 import com.devtoon.jtoon.payment.repository.MemberCookieRepository;
 import com.devtoon.jtoon.payment.repository.PaymentInfoRepository;
 import com.devtoon.jtoon.payment.request.PaymentReq;
-import com.siot.IamportRestClient.response.IamportResponse;
-import com.siot.IamportRestClient.response.Payment;
 
 import lombok.RequiredArgsConstructor;
 
 @Service
 @RequiredArgsConstructor
 @Transactional(readOnly = true)
-public class PaymentInfoService {
+public class PaymentInfoDomainService {
 
 	private final PaymentInfoRepository paymentInfoRepository;
 	private final MemberCookieRepository memberCookieRepository;
 
 	@Transactional
-	public BigDecimal createPayment(PaymentReq paymentReq, Member member) {
+	public BigDecimal createPayment(PaymentReq paymentReq) {
+		Member member = MemberThreadLocal.getMember();
 		PaymentInfo paymentInfo = paymentReq.toEntity(member);
 		CookieItem cookieItem = CookieItem.from(paymentReq.cookieItem());
 		MemberCookie memberCookie = MemberCookie.create(cookieItem.getCount(), member);
@@ -39,9 +39,7 @@ public BigDecimal createPayment(PaymentReq paymentReq, Member member) {
 		return paymentInfo.getAmount();
 	}
 
-	public void validateAmount(IamportResponse<Payment> iamportResponse, BigDecimal amount) {
-		BigDecimal realAmount = iamportResponse.getResponse().getAmount();
-
+	public void validateAmount(BigDecimal realAmount, BigDecimal amount) {
 		if (!realAmount.equals(amount)) {
 			throw new InvalidRequestException(ErrorStatus.PAYMENT_AMOUNT_INVALID);
 		}