diff --git a/modules/sdk-core/src/bitgo/trading/tradingAccount.ts b/modules/sdk-core/src/bitgo/trading/tradingAccount.ts
index 9133793770..410167cb0b 100644
--- a/modules/sdk-core/src/bitgo/trading/tradingAccount.ts
+++ b/modules/sdk-core/src/bitgo/trading/tradingAccount.ts
@@ -61,7 +61,7 @@ export class TradingAccount implements ITradingAccount {
     }
 
     // we do not parse the payload here, we instead sends the payload as a stringified JSON to be signed, just like how we process it locally
-    const url = this.wallet.url('/tx/sign');
+    const url = this.bitgo.coin('ofc').url('/wallet/' + this.wallet.id() + '/tx/sign');
     const payload = typeof params.payload !== 'string' ? JSON.stringify(params.payload) : params.payload;
     const { signature } = await this.wallet.bitgo.post(url).send({ payload }).result();
 
diff --git a/modules/sdk-core/test/unit/bitgo/trading/tradingAccount.ts b/modules/sdk-core/test/unit/bitgo/trading/tradingAccount.ts
index 2b9a0869e4..0b1d297e7e 100644
--- a/modules/sdk-core/test/unit/bitgo/trading/tradingAccount.ts
+++ b/modules/sdk-core/test/unit/bitgo/trading/tradingAccount.ts
@@ -26,6 +26,9 @@ describe('TradingAccount', function () {
 
     mockBitGo = {
       post: sinon.stub().returns({ send: sendStub }),
+      coin: sinon.stub().callsFake((coin: string) => ({
+        url: sinon.stub().callsFake((url: string) => `https://app.bitgo-staging.com/api/v2/${coin}${url}`),
+      })),
       decrypt: sinon
         .stub()
         .callsFake(({ input, password }) =>
@@ -48,7 +51,6 @@ describe('TradingAccount', function () {
     mockWallet = {
       id: sinon.stub().returns('test-wallet-id'),
       keyIds: sinon.stub().returns(['user-key-id', 'bitgo-key-id']),
-      url: sinon.stub().returns('https://example.com/wallet/test-wallet-id/tx/sign'),
       toJSON: sinon.stub().returns({
         id: 'test-wallet-id',
         keys: ['user-key-id', 'backup-key-id', 'bitgo-key-id'],
@@ -73,12 +75,17 @@ describe('TradingAccount', function () {
   });
 
   describe('signPayload', function () {
+    it('should call the right url', async function () {
+      const expectedUrl = `https://app.bitgo-staging.com/api/v2/ofc/wallet/test-wallet-id/tx/sign`;
+      await tradingAccount.signPayload({ payload });
+      mockBitGo.post.calledWith(expectedUrl).should.be.true();
+    });
+
     describe('without walletPassphrase or prv (BitGo remote signing)', function () {
       it('should sign using the BitGo key remotely when no passphrase is provided', async function () {
         const result = await tradingAccount.signPayload({ payload });
 
         mockWallet.toJSON.calledOnce.should.be.true();
-        mockWallet.url.calledWith('/tx/sign').should.be.true();
         mockBitGo.post.calledOnce.should.be.true();
         sendStub.calledWith({ payload: JSON.stringify(payload) }).should.be.true();
         result.should.equal(signature);