diff --git a/app/models/concerns/waste_carriers_engine/can_have_registration_attributes.rb b/app/models/concerns/waste_carriers_engine/can_have_registration_attributes.rb
index fe196202e..19e10a04c 100644
--- a/app/models/concerns/waste_carriers_engine/can_have_registration_attributes.rb
+++ b/app/models/concerns/waste_carriers_engine/can_have_registration_attributes.rb
@@ -163,6 +163,12 @@ def unpaid_balance?
 
         false
       end
+
+      def amount_paid
+        (finance_details.presence&.payments || []).inject(0) do |tot, payment|
+          tot + payment.amount
+        end
+      end
     end
     # rubocop:enable Metrics/BlockLength
   end
diff --git a/spec/support/shared_examples/can_have_registration_attributes.rb b/spec/support/shared_examples/can_have_registration_attributes.rb
index e2beb8e5e..b23155312 100644
--- a/spec/support/shared_examples/can_have_registration_attributes.rb
+++ b/spec/support/shared_examples/can_have_registration_attributes.rb
@@ -28,6 +28,24 @@
     end
   end
 
+  describe "#amount_paid" do
+    it "returns the total amount paid by the user" do
+      finance_detail1 = double(:finance_detail1, amount: 23)
+      finance_detail2 = double(:finance_detail2, amount: 30)
+      finance_details = double(:finance_details, payments: [finance_detail1, finance_detail2])
+
+      expect(resource).to receive(:finance_details).and_return(finance_details)
+      expect(resource.amount_paid).to eq(53)
+    end
+
+    context "when there are no finance details" do
+      it "return 0" do
+        expect(resource).to receive(:finance_details)
+        expect(resource.amount_paid).to eq(0)
+      end
+    end
+  end
+
   describe "#contact_address" do
     let(:contact_address) { build(:address, :contact) }
     let(:resource) { build(factory, addresses: [contact_address]) }