diff --git a/apps/api/src/app/endpoints/mcp/mcp.schemas.spec.ts b/apps/api/src/app/endpoints/mcp/mcp.schemas.spec.ts
index facfe3fd75..31f4569a86 100644
--- a/apps/api/src/app/endpoints/mcp/mcp.schemas.spec.ts
+++ b/apps/api/src/app/endpoints/mcp/mcp.schemas.spec.ts
@@ -336,6 +336,11 @@ describe('UPDATE_ACCOUNT_BALANCE_PARAMETERS', () => {
     expect(parse({ date: '2026-09-03' })).toBe(true);
   });
 
+  // A user in a time zone east of UTC has already reached the next date
+  it('Accepts a cash balance of tomorrow in UTC', () => {
+    expect(parse({ date: '2026-09-04' })).toBe(true);
+  });
+
   it('Accepts a negative cash balance', () => {
     expect(parse({ balance: -1000 })).toBe(true);
   });
diff --git a/apps/api/src/app/endpoints/mcp/mcp.service.spec.ts b/apps/api/src/app/endpoints/mcp/mcp.service.spec.ts
index 841c29ea49..d89af1a84d 100644
--- a/apps/api/src/app/endpoints/mcp/mcp.service.spec.ts
+++ b/apps/api/src/app/endpoints/mcp/mcp.service.spec.ts
@@ -668,6 +668,10 @@ describe('McpService', () => {
         HttpException
       );
 
+      // The permission is checked first, hence the existence of the account
+      // stays hidden
+      expect(accountService.account).not.toHaveBeenCalled();
+
       expect(
         accountBalanceService.createOrUpdateAccountBalance
       ).not.toHaveBeenCalled();
diff --git a/prisma/migrations/20261014000000_added_account_update_scope_to_mcp_access/migration.sql b/prisma/migrations/20261017000000_added_account_update_scope_to_mcp_access/migration.sql
similarity index 100%
rename from prisma/migrations/20261014000000_added_account_update_scope_to_mcp_access/migration.sql
rename to prisma/migrations/20261017000000_added_account_update_scope_to_mcp_access/migration.sql