diff --git a/lib/cloud-api/helpers.js b/lib/cloud-api/helpers.js
index 22f7954c..62721f47 100644
--- a/lib/cloud-api/helpers.js
+++ b/lib/cloud-api/helpers.js
@@ -90,6 +90,59 @@ async function checkAndEnableApi(
   }
 }
 
+/**
+ * Ensures that the specified Google Cloud APIs are enabled for the given project.
+ * If an API is not enabled, it attempts to enable it.  Retries any failure once after 1s.
+ * Throws an error if an API cannot be enabled.
+ *
+ * @async
+ * @param {object} context - The context object containing clients and other parameters.
+ * @param {string} projectId - The Google Cloud project ID.
+ * @param {string[]} apis - An array of API identifiers to check and enable (e.g., 'run.googleapis.com').
+ * @param {function(string, string=): void} progressCallback - A function to call with progress updates.
+ * The first argument is the message, the optional second argument is the type ('error', 'warning', 'info').
+ * @throws {Error} If an API fails to enable or if there's an issue checking its status.
+ * @returns {Promise<void>} A promise that resolves when all specified APIs are enabled.
+ */
+async function enableApisWithRetry(context, projectId, apis, progressCallback) {
+  if (!apis || !Array.isArray(apis)) {
+    return;
+  }
+  for (const api of apis) {
+    const serviceName = `projects/${projectId}/services/${api}`;
+    try {
+      await checkAndEnableApi(
+        context.serviceUsageClient,
+        serviceName,
+        api,
+        progressCallback
+      );
+    } catch (error) {
+      // First attempt failed, log a warning and retry once after a delay.
+      const warnMsg = `Failed to check/enable ${api}, retrying in 1s...`;
+      console.warn(warnMsg);
+      if (progressCallback) progressCallback({ level: 'warn', data: warnMsg });
+
+      await new Promise((resolve) => setTimeout(resolve, 1000));
+      try {
+        await checkAndEnableApi(
+          context.serviceUsageClient,
+          serviceName,
+          api,
+          progressCallback
+        );
+      } catch (retryError) {
+        // If the retry also fails, throw an error.
+        const errorMessage = `Failed to ensure API [${api}] is enabled after retry. Please check manually.`;
+        console.error(errorMessage, retryError);
+        if (progressCallback)
+          progressCallback({ level: 'error', data: errorMessage });
+        throw new Error(errorMessage);
+      }
+    }
+  }
+}
+
 /**
  * Ensures that the specified Google Cloud APIs are enabled for the given project.
  * If an API is not enabled, it attempts to enable it.  Retries any failure once after 1s.
@@ -110,6 +163,18 @@ export async function ensureApisEnabled(
   apis,
   progressCallback
 ) {
+  const prerequisiteApis = [
+    'serviceusage.googleapis.com',
+    'cloudbilling.googleapis.com',
+  ];
+
+  await enableApisWithRetry(
+    context,
+    projectId,
+    prerequisiteApis,
+    progressCallback
+  );
+
   if (!(await isBillingEnabled(projectId))) {
     // Billing is disabled, try to fix it.
     const accounts = await listBillingAccounts();
@@ -158,39 +223,7 @@ export async function ensureApisEnabled(
   console.log(message);
   if (progressCallback) progressCallback({ level: 'info', data: message });
 
-  for (const api of apis) {
-    const serviceName = `projects/${projectId}/services/${api}`;
-    try {
-      await checkAndEnableApi(
-        context.serviceUsageClient,
-        serviceName,
-        api,
-        progressCallback
-      );
-    } catch (error) {
-      // First attempt failed, log a warning and retry once after a delay.
-      const warnMsg = `Failed to check/enable ${api}, retrying in 1s...`;
-      console.warn(warnMsg);
-      if (progressCallback) progressCallback({ level: 'warn', data: warnMsg });
-
-      await new Promise((resolve) => setTimeout(resolve, 1000));
-      try {
-        await checkAndEnableApi(
-          context.serviceUsageClient,
-          serviceName,
-          api,
-          progressCallback
-        );
-      } catch (retryError) {
-        // If the retry also fails, throw an error.
-        const errorMessage = `Failed to ensure API [${api}] is enabled after retry. Please check manually.`;
-        console.error(errorMessage, retryError);
-        if (progressCallback)
-          progressCallback({ level: 'error', data: errorMessage });
-        throw new Error(errorMessage);
-      }
-    }
-  }
+  await enableApisWithRetry(context, projectId, apis, progressCallback);
   const successMsg = 'All required APIs are enabled.';
   console.log(successMsg);
   if (progressCallback) progressCallback({ level: 'info', data: successMsg });
diff --git a/lib/deployment/deployer.js b/lib/deployment/deployer.js
index 03d9054e..a2b7a496 100644
--- a/lib/deployment/deployer.js
+++ b/lib/deployment/deployer.js
@@ -32,18 +32,20 @@ const IMAGE_TAG = 'latest';
 
 // APIs required for deploying from source code.
 const REQUIRED_APIS_FOR_SOURCE_DEPLOY = [
+  'serviceusage.googleapis.com',
+  'cloudbilling.googleapis.com',
   'iam.googleapis.com',
   'storage.googleapis.com',
   'cloudbuild.googleapis.com',
   'artifactregistry.googleapis.com',
   'run.googleapis.com',
-  'serviceusage.googleapis.com',
 ];
 
 // APIs required for deploying a container image.
 const REQUIRED_APIS_FOR_IMAGE_DEPLOY = [
-  'run.googleapis.com',
   'serviceusage.googleapis.com',
+  'cloudbilling.googleapis.com',
+  'run.googleapis.com',
 ];
 
 /**
diff --git a/test/local/helpers.test.js b/test/local/helpers.test.js
index 3601d961..0a2b8f5b 100644
--- a/test/local/helpers.test.js
+++ b/test/local/helpers.test.js
@@ -45,10 +45,104 @@ describe('ensureApisEnabled', () => {
 
   afterEach(() => {
     mock.restoreAll();
+    delete process.env.SKIP_API_DELAY;
+  });
+
+  beforeEach(() => {
+    process.env.SKIP_API_DELAY = 'true';
+  });
+
+  describe('API Pre-checks', () => {
+    it('should enable serviceusage, cloudbilling, then check billing and enable api list', async () => {
+      billingMocks.isBillingEnabled.mock.mockImplementation(() =>
+        Promise.resolve(true)
+      );
+      // Return DISABLED for all APIs
+      mockServiceUsageClient.getService.mock.mockImplementation(() =>
+        Promise.resolve([{ state: 'DISABLED' }])
+      );
+
+      await ensureApisEnabled(
+        { serviceUsageClient: mockServiceUsageClient },
+        projectId,
+        apis,
+        mockProgressCallback
+      );
+
+      // getService should be called for serviceusage, cloudbilling, and the test api
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 3);
+      assert.match(
+        mockServiceUsageClient.getService.mock.calls[0].arguments[0].name,
+        /serviceusage\.googleapis\.com/
+      );
+      assert.match(
+        mockServiceUsageClient.getService.mock.calls[1].arguments[0].name,
+        /cloudbilling\.googleapis\.com/
+      );
+      assert.match(
+        mockServiceUsageClient.getService.mock.calls[2].arguments[0].name,
+        /test-api\.googleapis\.com/
+      );
+
+      // enableService should be called for serviceusage, cloudbilling, and the test api
+      assert.strictEqual(
+        mockServiceUsageClient.enableService.mock.callCount(),
+        3
+      );
+      assert.match(
+        mockServiceUsageClient.enableService.mock.calls[0].arguments[0].name,
+        /serviceusage\.googleapis\.com/
+      );
+      assert.match(
+        mockServiceUsageClient.enableService.mock.calls[1].arguments[0].name,
+        /cloudbilling\.googleapis\.com/
+      );
+      assert.match(
+        mockServiceUsageClient.enableService.mock.calls[2].arguments[0].name,
+        /test-api\.googleapis\.com/
+      );
+
+      // isBillingEnabled should be called once
+      assert.strictEqual(billingMocks.isBillingEnabled.mock.callCount(), 1);
+    });
+
+    it('should only check billing and api list if prereq APIs enabled', async () => {
+      billingMocks.isBillingEnabled.mock.mockImplementation(() =>
+        Promise.resolve(true)
+      );
+      // Only disable the test API
+      mockServiceUsageClient.getService.mock.mockImplementation(({ name }) => {
+        if (name.includes('test-api')) {
+          return Promise.resolve([{ state: 'DISABLED' }]);
+        }
+        return Promise.resolve([{ state: 'ENABLED' }]);
+      });
+
+      await ensureApisEnabled(
+        { serviceUsageClient: mockServiceUsageClient },
+        projectId,
+        apis,
+        mockProgressCallback
+      );
+
+      // getService should be called for serviceusage, cloudbilling, and the test api
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 3);
+      // enableService should only be called for the test api
+      assert.strictEqual(
+        mockServiceUsageClient.enableService.mock.callCount(),
+        1
+      );
+      assert.match(
+        mockServiceUsageClient.enableService.mock.calls[0].arguments[0].name,
+        /test-api\.googleapis\.com/
+      );
+      // isBillingEnabled should be called once
+      assert.strictEqual(billingMocks.isBillingEnabled.mock.callCount(), 1);
+    });
   });
 
   describe('Billing Enabled', () => {
-    it('should do nothing if API is already enabled', async () => {
+    it('should do nothing if all APIs are already enabled', async () => {
       billingMocks.isBillingEnabled.mock.mockImplementation(() =>
         Promise.resolve(true)
       );
@@ -63,7 +157,7 @@ describe('ensureApisEnabled', () => {
         mockProgressCallback
       );
 
-      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 1);
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 3);
       assert.strictEqual(
         mockServiceUsageClient.enableService.mock.callCount(),
         0
@@ -74,9 +168,12 @@ describe('ensureApisEnabled', () => {
       billingMocks.isBillingEnabled.mock.mockImplementation(() =>
         Promise.resolve(true)
       );
-      mockServiceUsageClient.getService.mock.mockImplementation(() =>
-        Promise.resolve([{ state: 'DISABLED' }])
-      );
+      mockServiceUsageClient.getService.mock.mockImplementation(({ name }) => {
+        if (name.includes('test-api')) {
+          return Promise.resolve([{ state: 'DISABLED' }]);
+        }
+        return Promise.resolve([{ state: 'ENABLED' }]);
+      });
 
       await ensureApisEnabled(
         { serviceUsageClient: mockServiceUsageClient },
@@ -85,7 +182,7 @@ describe('ensureApisEnabled', () => {
         mockProgressCallback
       );
 
-      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 1);
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 3);
       assert.strictEqual(
         mockServiceUsageClient.enableService.mock.callCount(),
         1
@@ -97,7 +194,12 @@ describe('ensureApisEnabled', () => {
         Promise.resolve(true)
       );
       let getServiceCallCount = 0;
-      mockServiceUsageClient.getService.mock.mockImplementation(() => {
+      mockServiceUsageClient.getService.mock.mockImplementation(({ name }) => {
+        // Ensure pre-checks pass
+        if (name.includes('serviceusage') || name.includes('cloudbilling')) {
+          return Promise.resolve([{ state: 'ENABLED' }]);
+        }
+        // Fail only for test-api on the first attempt
         getServiceCallCount++;
         if (getServiceCallCount === 1) {
           return Promise.reject(new Error('First fail'));
@@ -112,7 +214,7 @@ describe('ensureApisEnabled', () => {
         mockProgressCallback
       );
 
-      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 2);
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 4); // 2 pre-checks + 2 attempts for test-api
       assert.strictEqual(
         mockServiceUsageClient.enableService.mock.callCount(),
         0
@@ -123,9 +225,14 @@ describe('ensureApisEnabled', () => {
       billingMocks.isBillingEnabled.mock.mockImplementation(() =>
         Promise.resolve(true)
       );
-      mockServiceUsageClient.getService.mock.mockImplementation(() =>
-        Promise.reject(new Error('Always fail'))
-      );
+      mockServiceUsageClient.getService.mock.mockImplementation(({ name }) => {
+        // Ensure pre-checks pass
+        if (name.includes('serviceusage') || name.includes('cloudbilling')) {
+          return Promise.resolve([{ state: 'ENABLED' }]);
+        }
+        // Fail only for test-api
+        return Promise.reject(new Error('Always fail'));
+      });
 
       await assert.rejects(
         () =>
@@ -140,7 +247,7 @@ describe('ensureApisEnabled', () => {
             'Failed to ensure API [test-api.googleapis.com] is enabled after retry. Please check manually.',
         }
       );
-      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 2);
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 4); // 2 pre-checks + 2 attempts for test-api
     });
   });
 
@@ -152,6 +259,9 @@ describe('ensureApisEnabled', () => {
       billingMocks.listBillingAccounts.mock.mockImplementation(() =>
         Promise.resolve([])
       );
+      mockServiceUsageClient.getService.mock.mockImplementation(() =>
+        Promise.resolve([{ state: 'ENABLED' }])
+      );
 
       await assert.rejects(
         () =>
@@ -174,6 +284,9 @@ describe('ensureApisEnabled', () => {
       billingMocks.listBillingAccounts.mock.mockImplementation(() =>
         Promise.resolve([{}, {}])
       );
+      mockServiceUsageClient.getService.mock.mockImplementation(() =>
+        Promise.resolve([{ state: 'ENABLED' }])
+      );
 
       await assert.rejects(
         () =>
@@ -196,6 +309,9 @@ describe('ensureApisEnabled', () => {
       billingMocks.listBillingAccounts.mock.mockImplementation(() =>
         Promise.resolve([{ displayName: 'Closed Account', open: false }])
       );
+      mockServiceUsageClient.getService.mock.mockImplementation(() =>
+        Promise.resolve([{ state: 'ENABLED' }])
+      );
 
       await assert.rejects(
         () =>
@@ -242,7 +358,7 @@ describe('ensureApisEnabled', () => {
         billingMocks.attachProjectToBillingAccount.mock.callCount(),
         1
       );
-      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 1);
+      assert.strictEqual(mockServiceUsageClient.getService.mock.callCount(), 3);
       assert.strictEqual(
         mockServiceUsageClient.enableService.mock.callCount(),
         0
@@ -265,6 +381,9 @@ describe('ensureApisEnabled', () => {
       billingMocks.attachProjectToBillingAccount.mock.mockImplementation(() =>
         Promise.resolve({ billingEnabled: false })
       );
+      mockServiceUsageClient.getService.mock.mockImplementation(() =>
+        Promise.resolve([{ state: 'ENABLED' }])
+      );
 
       await assert.rejects(
         () =>
diff --git a/test/need-gcp/test-helpers.js b/test/need-gcp/test-helpers.js
index b071f44e..fb374e05 100644
--- a/test/need-gcp/test-helpers.js
+++ b/test/need-gcp/test-helpers.js
@@ -163,7 +163,10 @@ export async function setSourceDeployProjectPermissions(projectId) {
   const context = {
     serviceUsageClient: serviceUsageClient,
   };
-  await ensureApisEnabled(context, projectId, ['run.googleapis.com']);
+  await ensureApisEnabled(context, projectId, [
+    'run.googleapis.com',
+    'cloudbilling.googleapis.com',
+  ]);
   console.log('Adding editor role to Compute SA...');
   const projectNumber = await getProjectNumber(projectId);
   const member = `serviceAccount:${projectNumber}-compute@developer.gserviceaccount.com`;