diff --git a/bruno/collections/Rafiki/Examples/Admin API -  only locally/Peer-to-Peer Payment/Get Outgoing Payment.bru b/bruno/collections/Rafiki/Examples/Admin API -  only locally/Peer-to-Peer Payment/Get Outgoing Payment.bru
index 3216293fbd..cfca035df3 100644
--- a/bruno/collections/Rafiki/Examples/Admin API -  only locally/Peer-to-Peer Payment/Get Outgoing Payment.bru	
+++ b/bruno/collections/Rafiki/Examples/Admin API -  only locally/Peer-to-Peer Payment/Get Outgoing Payment.bru	
@@ -17,6 +17,7 @@ body:graphql {
       error
       metadata
       id
+      grantId
       walletAddressId
       quote {
         id
diff --git a/bruno/collections/Rafiki/Rafiki Admin APIs/Get Outgoing Payment.bru b/bruno/collections/Rafiki/Rafiki Admin APIs/Get Outgoing Payment.bru
index dd91eec3c1..ae9cd5ff47 100644
--- a/bruno/collections/Rafiki/Rafiki Admin APIs/Get Outgoing Payment.bru	
+++ b/bruno/collections/Rafiki/Rafiki Admin APIs/Get Outgoing Payment.bru	
@@ -17,6 +17,7 @@ body:graphql {
       error
       metadata
       id
+      grantId
       walletAddressId
       client
       quote {
diff --git a/localenv/mock-account-servicing-entity/generated/graphql.ts b/localenv/mock-account-servicing-entity/generated/graphql.ts
index 44c15b81de..e482374c2f 100644
--- a/localenv/mock-account-servicing-entity/generated/graphql.ts
+++ b/localenv/mock-account-servicing-entity/generated/graphql.ts
@@ -841,6 +841,8 @@ export type OutgoingPayment = BasePayment & Model & {
   /** Amount to send (fixed send) */
   debitAmount: Amount;
   error?: Maybe<Scalars['String']['output']>;
+  /** Id of the Grant under which this outgoing payment was created */
+  grantId?: Maybe<Scalars['String']['output']>;
   /** Outgoing payment id */
   id: Scalars['ID']['output'];
   /** Available liquidity */
@@ -1992,6 +1994,7 @@ export type OutgoingPaymentResolvers<ContextType = any, ParentType extends Resol
   createdAt?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   debitAmount?: Resolver<ResolversTypes['Amount'], ParentType, ContextType>;
   error?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  grantId?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
   liquidity?: Resolver<Maybe<ResolversTypes['UInt64']>, ParentType, ContextType>;
   metadata?: Resolver<Maybe<ResolversTypes['JSONObject']>, ParentType, ContextType>;
diff --git a/packages/backend/src/graphql/generated/graphql.schema.json b/packages/backend/src/graphql/generated/graphql.schema.json
index 6cc8288adf..f0b8b64033 100644
--- a/packages/backend/src/graphql/generated/graphql.schema.json
+++ b/packages/backend/src/graphql/generated/graphql.schema.json
@@ -4916,6 +4916,18 @@
             "isDeprecated": false,
             "deprecationReason": null
           },
+          {
+            "name": "grantId",
+            "description": "Id of the Grant under which this outgoing payment was created",
+            "args": [],
+            "type": {
+              "kind": "SCALAR",
+              "name": "String",
+              "ofType": null
+            },
+            "isDeprecated": false,
+            "deprecationReason": null
+          },
           {
             "name": "id",
             "description": "Outgoing payment id",
diff --git a/packages/backend/src/graphql/generated/graphql.ts b/packages/backend/src/graphql/generated/graphql.ts
index 44c15b81de..e482374c2f 100644
--- a/packages/backend/src/graphql/generated/graphql.ts
+++ b/packages/backend/src/graphql/generated/graphql.ts
@@ -841,6 +841,8 @@ export type OutgoingPayment = BasePayment & Model & {
   /** Amount to send (fixed send) */
   debitAmount: Amount;
   error?: Maybe<Scalars['String']['output']>;
+  /** Id of the Grant under which this outgoing payment was created */
+  grantId?: Maybe<Scalars['String']['output']>;
   /** Outgoing payment id */
   id: Scalars['ID']['output'];
   /** Available liquidity */
@@ -1992,6 +1994,7 @@ export type OutgoingPaymentResolvers<ContextType = any, ParentType extends Resol
   createdAt?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   debitAmount?: Resolver<ResolversTypes['Amount'], ParentType, ContextType>;
   error?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  grantId?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
   liquidity?: Resolver<Maybe<ResolversTypes['UInt64']>, ParentType, ContextType>;
   metadata?: Resolver<Maybe<ResolversTypes['JSONObject']>, ParentType, ContextType>;
diff --git a/packages/backend/src/graphql/resolvers/outgoing_payment.test.ts b/packages/backend/src/graphql/resolvers/outgoing_payment.test.ts
index 53d7d9bb48..71c51affcc 100644
--- a/packages/backend/src/graphql/resolvers/outgoing_payment.test.ts
+++ b/packages/backend/src/graphql/resolvers/outgoing_payment.test.ts
@@ -10,7 +10,10 @@ import { AppServices } from '../../app'
 import { initIocContainer } from '../..'
 import { Config } from '../../config/app'
 import { createAsset } from '../../tests/asset'
-import { createOutgoingPayment } from '../../tests/outgoingPayment'
+import {
+  createOutgoingPayment,
+  CreateTestQuoteAndOutgoingPaymentOptions
+} from '../../tests/outgoingPayment'
 import { createWalletAddress } from '../../tests/walletAddress'
 import { truncateTables } from '../../tests/tableManager'
 import {
@@ -61,11 +64,14 @@ describe('OutgoingPayment Resolvers', (): void => {
     await appContainer.shutdown()
   })
 
-  const createPayment = async (options: {
-    walletAddressId: string
-    metadata?: Record<string, unknown>
-  }): Promise<OutgoingPaymentModel> => {
-    return await createOutgoingPayment(deps, {
+  const createPayment = async (
+    options: {
+      walletAddressId: string
+      metadata?: Record<string, unknown>
+    },
+    grantId?: string
+  ): Promise<OutgoingPaymentModel> => {
+    const obj: CreateTestQuoteAndOutgoingPaymentOptions = {
       ...options,
       method: 'ilp',
       receiver: `${Config.openPaymentsUrl}/${uuid()}`,
@@ -75,12 +81,54 @@ describe('OutgoingPayment Resolvers', (): void => {
         assetScale: asset.scale
       },
       validDestination: false
-    })
+    }
+
+    if (grantId) {
+      obj.grant = { id: grantId }
+    }
+
+    return await createOutgoingPayment(deps, obj)
   }
 
   describe('Query.outgoingPayment', (): void => {
     let payment: OutgoingPaymentModel
 
+    describe('grantId', (): void => {
+      it('should return grantId', async (): Promise<void> => {
+        const grantId = uuid()
+
+        const { id: walletAddressId } = await createWalletAddress(deps, {
+          assetId: asset.id
+        })
+
+        const payment = await createPayment({ walletAddressId }, grantId)
+
+        const query = await appContainer.apolloClient
+          .query({
+            query: gql`
+              query OutgoingPayment($paymentId: String!) {
+                outgoingPayment(id: $paymentId) {
+                  id
+                  grantId
+                  walletAddressId
+                }
+              }
+            `,
+            variables: {
+              paymentId: payment.id
+            }
+          })
+          .then((query): OutgoingPayment => query.data?.outgoingPayment)
+
+        expect(query).toEqual({
+          id: payment.id,
+          grantId: payment.grantId,
+          walletAddressId: payment.walletAddressId,
+          __typename: 'OutgoingPayment'
+        })
+      })
+    })
+
     describe('metadata', (): void => {
       const metadata = {
         description: 'rent',
diff --git a/packages/backend/src/graphql/resolvers/outgoing_payment.ts b/packages/backend/src/graphql/resolvers/outgoing_payment.ts
index c4907b6e58..699357de60 100644
--- a/packages/backend/src/graphql/resolvers/outgoing_payment.ts
+++ b/packages/backend/src/graphql/resolvers/outgoing_payment.ts
@@ -172,6 +172,7 @@ export function paymentToGraphql(
     receiveAmount: payment.receiveAmount,
     metadata: payment.metadata,
     createdAt: new Date(+payment.createdAt).toISOString(),
-    quote: quoteToGraphql(payment.quote)
+    quote: quoteToGraphql(payment.quote),
+    grantId: payment.grantId
   }
 }
diff --git a/packages/backend/src/graphql/schema.graphql b/packages/backend/src/graphql/schema.graphql
index 1e1d0e4489..dcf104c049 100644
--- a/packages/backend/src/graphql/schema.graphql
+++ b/packages/backend/src/graphql/schema.graphql
@@ -849,6 +849,8 @@ type OutgoingPayment implements BasePayment & Model {
   sentAmount: Amount!
   "Date-time of creation"
   createdAt: String!
+  "Id of the Grant under which this outgoing payment was created"
+  grantId: String
 }
 
 enum OutgoingPaymentState {
diff --git a/packages/backend/src/tests/outgoingPayment.ts b/packages/backend/src/tests/outgoingPayment.ts
index 13d756653d..f28b38e694 100644
--- a/packages/backend/src/tests/outgoingPayment.ts
+++ b/packages/backend/src/tests/outgoingPayment.ts
@@ -14,7 +14,7 @@ import { IncomingPayment } from '../open_payments/payment/incoming/model'
 import { createIncomingPayment } from './incomingPayment'
 import assert from 'assert'
 
-type CreateTestQuoteAndOutgoingPaymentOptions = Omit<
+export type CreateTestQuoteAndOutgoingPaymentOptions = Omit<
   CreateOutgoingPaymentOptions & CreateTestQuoteOptions,
   'quoteId'
 >
diff --git a/packages/frontend/app/generated/graphql.ts b/packages/frontend/app/generated/graphql.ts
index 4e89d4245c..10e878774f 100644
--- a/packages/frontend/app/generated/graphql.ts
+++ b/packages/frontend/app/generated/graphql.ts
@@ -841,6 +841,8 @@ export type OutgoingPayment = BasePayment & Model & {
   /** Amount to send (fixed send) */
   debitAmount: Amount;
   error?: Maybe<Scalars['String']['output']>;
+  /** Id of the Grant under which this outgoing payment was created */
+  grantId?: Maybe<Scalars['String']['output']>;
   /** Outgoing payment id */
   id: Scalars['ID']['output'];
   /** Available liquidity */
@@ -1992,6 +1994,7 @@ export type OutgoingPaymentResolvers<ContextType = any, ParentType extends Resol
   createdAt?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   debitAmount?: Resolver<ResolversTypes['Amount'], ParentType, ContextType>;
   error?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  grantId?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
   liquidity?: Resolver<Maybe<ResolversTypes['UInt64']>, ParentType, ContextType>;
   metadata?: Resolver<Maybe<ResolversTypes['JSONObject']>, ParentType, ContextType>;
diff --git a/packages/mock-account-service-lib/src/generated/graphql.ts b/packages/mock-account-service-lib/src/generated/graphql.ts
index 44c15b81de..e482374c2f 100644
--- a/packages/mock-account-service-lib/src/generated/graphql.ts
+++ b/packages/mock-account-service-lib/src/generated/graphql.ts
@@ -841,6 +841,8 @@ export type OutgoingPayment = BasePayment & Model & {
   /** Amount to send (fixed send) */
   debitAmount: Amount;
   error?: Maybe<Scalars['String']['output']>;
+  /** Id of the Grant under which this outgoing payment was created */
+  grantId?: Maybe<Scalars['String']['output']>;
   /** Outgoing payment id */
   id: Scalars['ID']['output'];
   /** Available liquidity */
@@ -1992,6 +1994,7 @@ export type OutgoingPaymentResolvers<ContextType = any, ParentType extends Resol
   createdAt?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   debitAmount?: Resolver<ResolversTypes['Amount'], ParentType, ContextType>;
   error?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  grantId?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
   liquidity?: Resolver<Maybe<ResolversTypes['UInt64']>, ParentType, ContextType>;
   metadata?: Resolver<Maybe<ResolversTypes['JSONObject']>, ParentType, ContextType>;
diff --git a/test/integration/lib/generated/graphql.ts b/test/integration/lib/generated/graphql.ts
index 44c15b81de..e482374c2f 100644
--- a/test/integration/lib/generated/graphql.ts
+++ b/test/integration/lib/generated/graphql.ts
@@ -841,6 +841,8 @@ export type OutgoingPayment = BasePayment & Model & {
   /** Amount to send (fixed send) */
   debitAmount: Amount;
   error?: Maybe<Scalars['String']['output']>;
+  /** Id of the Grant under which this outgoing payment was created */
+  grantId?: Maybe<Scalars['String']['output']>;
   /** Outgoing payment id */
   id: Scalars['ID']['output'];
   /** Available liquidity */
@@ -1992,6 +1994,7 @@ export type OutgoingPaymentResolvers<ContextType = any, ParentType extends Resol
   createdAt?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   debitAmount?: Resolver<ResolversTypes['Amount'], ParentType, ContextType>;
   error?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  grantId?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   id?: Resolver<ResolversTypes['ID'], ParentType, ContextType>;
   liquidity?: Resolver<Maybe<ResolversTypes['UInt64']>, ParentType, ContextType>;
   metadata?: Resolver<Maybe<ResolversTypes['JSONObject']>, ParentType, ContextType>;