Abstract: Account data (e.g., account balance, account identifiers, account holder information and transaction data) for accounts at a plurality of financial institutions are stored at one or more databases within an account database system. The account data may be accessed in response to various requests (asset search request, as a verification request and income verification request). Transaction data for an account (such as ACH transaction messages) may be used to identify or verify income to an account holder, based on deposit/credits to the account.