Banks generally do not have an automated or real-time way to see a comprehensive list of all your other bank accounts at different institutions, as there is no centralized database accessible to all banks that tracks every account a person holds. However, they can still gain information about your broader financial footprint through other means. During the credit application process, banks use credit reports, which may list other active lines of credit or loans from different financial institutions. Furthermore, if you provide financial statements, tax returns, or other documentation for a loan or wealth management service, these documents will naturally disclose the existence of other accounts. Additionally, in specific legal or regulatory scenarios—such as a court-ordered subpoena, a tax audit, or a formal investigation into suspected financial crime—authorities can compel the disclosure of your full financial picture.