Source: Board of Governors of the Federal Reserve System (US)  

Release: Interest Rate on Reserve Balances  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Daily, 7-Day

Notes:

Starting July 29, 2021, the interest rate on excess reserves (IOER) and the interest rate on required reserves (IORR) were replaced with a single rate, the interest rate on reserve balances (IORB). See the source's announcement for more details.

The interest rate on reserve balances (IORB rate) is the rate of interest that the Federal Reserve pays on balances maintained by or on behalf of eligible institutions in master accounts at Federal Reserve Banks. The interest rate is set by the Board of Governors, and it is an important tool of monetary policy.

See Policy Tools and the IORB FAQs for more information.

Source: Federal Reserve Bank of New York  

Release: Secured Overnight Financing Rate Data  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Daily

Source: Federal Reserve Bank of New York  

Release: Federal Funds Data  

Units:  Percent, Not Seasonally Adjusted

Frequency:  Daily

Notes:

For additional historical federal funds rate data, please see Daily Federal Funds Rate from 1928-1954.

The federal funds market consists of domestic unsecured borrowings in U.S. dollars by depository institutions from other depository institutions and certain other entities, primarily government-sponsored enterprises.

The effective federal funds rate (EFFR) is calculated as a volume-weighted median of overnight federal funds transactions reported in the FR 2420 Report of Selected Money Market Rates.

For more information, visit the Federal Reserve Bank of New York.