Account Balance Monitoring System

The Account Balance Monitoring System (ABMS) is the Federal Reserve computer system that allows Reserve Banks and institutions to obtain account balance information throughout the day. It also allows Reserve Bank staff to monitor an account on a real-time basis and establish certain controls over Fedwire activity. Institutions that are Fedline or computer interface customers may use ABMS to manage intraday and end-of-day account balances. ABMS is operational for institution inquiries from 12:30 a.m. to 9:00 p.m. eastern time.

ABMS information includes Fedwire funds and securities transfers as they occur, and aggregate information on all other transactions (commonly referred to as “non-Fedwire” activity) as they are posted to the Reserve Bank's integrated accounting system (IAS).

ABMS Usage by Account Holders

The Federal Reserve encourages institutions to periodically request ABMS reports, as a check on their own internal intraday position reports and projected end-of-day balance. Account holders can use ABMS to check that their balance can support outgoing Funds transfers without causing a cap breach. Additionally, early detection of a problem can help avoid an overnight overdraft, provides more research time, and possibly greater access to funds if needed.

After the account is settled for the day, the Federal Reserve recommends account holders continue to check ABMS, at least until the close of Fedwire. If an account holder receives an unanticipated entry, the institution has an opportunity to resolve it. For institutions that receive material entries in their master account after the close of Fedwire, such as cash charges or TTL entries, the account holder may wish to monitor the account after the close of Fedwire. Funding sources after the close of Fedwire are limited to the Discount window. For information on Discount Window hours, please contact your local Reserve Bank.

When more information is needed on the daylight overdraft position or the account is out of balance and requires resolution in order to avoid a potential overnight overdraft, there are tools that can be used to break down the information. If a master account has subaccounts, ABMS self balance type provides a report that reflects the subtotals of debits and credits for the subaccount or master account without the subaccount entries. If the error is not detected in the Fedwire Funds transactions, additional details may be obtained on the other activity from the Accounting Services Fedline inquiry reports and Cash Management reports. Additionally, account holders may contact their Administrative Reserve Bank if there is a discrepancy in between internal records and ABMS.

ABMS Reports

The ABMS Report presents three balances, the Daylight Overdraft Balance, the Account Balance, and the Available Funds Balance. Generally speaking, institutions use the Account Balance for overnight overdraft management, while the others for daylight overdraft management.