What Is the Federal Funds Rate?
The federal funds rate is the interest rate at which US banks and credit unions lend money to one another overnight, using their reserve balances at the Federal Reserve. It serves as the foundational benchmark for nearly all other interest rates in the US economy.
Critically, the federal funds rate is not a single, fixed number. It is a target range — for example, 3.75% to 4% as set in late 2025. The actual market rate, known as the effective federal funds rate (EFFR), typically moves within that band.
Why Banks Lend ‘Overnight’
Banks are required to hold a certain amount of reserves — cash or deposits at the Fed — to meet withdrawals and regulatory liquidity requirements. Because reserves fluctuate daily due to deposits, withdrawals, loan disbursements, and payment settlements, banks often end the day with either a surplus or a shortfall.
To remain in compliance, banks with extra reserves lend to those with a shortfall. These loans are overnight and unsecured. The interest charged on these transactions constitutes the federal funds rate. For example, if Bank A has $50 million in excess reserves and Bank B needs $30 million, Bank A may lend that amount at the prevailing rate, with Bank B repaying the next morning with a small interest fee—about $3,233 on $30 million at 3.88%.
Who Decides the Rate?
The Federal Open Market Committee (FOMC), the policy-making arm of the Federal Reserve, sets the target range. This group includes seven members of the Federal Reserve Board, five rotating Reserve Bank presidents, and the permanent vote of the New York Fed president. The committee meets eight times per year to set monetary policy.
Who Sets the Federal Funds Rate and How Do They Do It?
The rate is determined through policy decisions made by the FOMC, and then maintained using tools that influence the supply and demand of reserves. First, teams of Fed economists prepare detailed reports covering GDP, employment, inflation, financial conditions, and global risks. Then, during the meeting, economists present the outlook, members discuss risks, policy options are debated, and a formal vote sets the target range. Decisions are announced in a press release at 2:00 PM Eastern Time, followed by a press briefing from the Fed Chair. Finally, the Fed enforces the target range using administrative tools, including IORB (Interest on Reserve Balances), ON RRP (Overnight Reverse Repo Facility), the discount rate, and open market operations. These keep the actual EFFR, such as 3.88% in November 2025, within the desired range.
What Does the Federal Funds Rate Affect?
Although it targets interbank lending, the federal funds rate influences a wide range of financial products because it affects banks’ cost of money. It directly drives the prime rate, which is typically 3% above the federal funds rate and used to price credit cards, HELOCs, and small business loans. Mortgage rates are not directly tied to it but move with the 10-year Treasury yield, though Fed policy still exerts indirect influence. In late 2025, 30-year fixed mortgage rates averaged about 6.5% to 7%, while adjustable-rate mortgages and HELOCs tracked short-term rates more closely. Savings account yields also respond; high-yield online accounts offered about 4% to 4.5% in the same period. Auto loans and personal loans react more slowly, but credit card APRs, typically 20% to 24%, move almost instantly with the prime rate. Lower rates can support risk assets like stocks, weaken the US dollar, and support bond prices, while higher rates tend to do the reverse, though real-world reactions depend on growth and risk sentiment.
Why Does the Fed Raise or Cut Interest Rates?
The Fed’s decisions stem from its dual mandate of maximum employment and price stability, with a 2% inflation target. The Fed raises rates to fight high inflation, prevent the economy from overheating, and cool speculative excess. The 2022-2023 tightening cycle is a key example: after near-zero rates during the COVID crisis, inflation surged to 9.1%, prompting four consecutive 75-basis-point hikes in mid-2022 and eventually lifting the target range to 5.25% to 5.5% by mid-2023. Conversely, the Fed cuts rates to support employment, reduce recession risks, and restore financial stability. In March 2020, as the global economy shut down, the Fed executed emergency cuts totaling 150 basis points in 12 days, returning rates to 0% to 0.25%. The subsequent 2024-2025 cutting cycle saw the first reduction in September 2024, followed by further cuts that brought the target range down to 3.75% to 4%, illustrating a classic shift from inflation-fighting to economic support guided by a data-dependent approach.
How Is the Federal Funds Rate Determined?
The rate emerges from market mechanics shaped by the supply and demand for bank reserves, influenced by daily withdrawals, loan flows, payment settlements, and seasonal effects. The New York Fed calculates the EFFR daily using the volume-weighted median of overnight trades. Key operational tools include open market operations, where the Fed buys or sells Treasury securities to adjust reserve supply; IORB, which creates a soft upper boundary for the effective rate; the ON RRP facility, which forms a practical floor; and the discount rate, which acts as a ceiling. The Taylor Rule also serves as a conceptual benchmark, offering a formula that links the target rate to inflation and the output gap, though it is not a binding rule.
How the Federal Funds Rate Affects the Average Citizen
Even though the federal funds rate applies only to overnight lending between banks, its effects ripple into daily financial life. For loans, rate hikes raise monthly payments on new mortgages, auto loans, and personal loans, while cuts make financing more affordable over time. Credit cards react fastest, with APRs tied directly to the prime rate; a 25-basis-point increase compounds the strain on households carrying balances at 20% to 24% APR. Savings and CD yields also shift quickly, with savers benefiting from locking in CDs before yields fall during cutting cycles. For small businesses, borrowing costs tied to variable-rate loans influence expansion plans, payroll, and prices, impacting local economies. In the crypto sphere, higher rates reduce risk appetite and cool speculative activity, while lower rates can fuel risk-on sentiment and attract capital into digital assets, helping explain why crypto sometimes booms or stalls unexpectedly.
History of the Federal Funds Rate
A simplified timeline of major events shows the dramatic swings in the rate over time:
Date of Event | What Happened |
Volcker era (1979 to 1987) |
|
Dot-com boom and bust (1999 to 2003) |
|
Great Recession (2007 to 2009) |
|
COVID crash (2020) |
|
Post-COVID inflation fight (2022 to 2023) |
|
Current cycle (2024 to 2025) |
|
Related Terms and What They Mean
Prime Rate
The benchmark rate banks charge their most creditworthy borrowers, typically about 3% above the federal funds rate. It represents the base cost of borrowing for top-tier customers and anchors rates for credit cards, home equity lines of credit, and many small business loans.
Discount Rate
The rate charged by the Fed for banks borrowing directly from its discount window. This rate is set intentionally above the target range, acting as a ceiling and ensuring that banks turn to each other first for overnight funding needs.
Real Interest Rate
The nominal interest rate minus the rate of inflation. It reflects the actual purchasing power of the interest earned or paid, making it a crucial metric for understanding the true cost of borrowing or the real return on savings.
Yield Curve
A chart showing interest rates on bonds of different maturities. Its shape is a powerful signal of market expectations for future economic growth and inflation, and an inverted curve often predicts a recession.
QE and QT
Quantitative easing (QE) involves the Fed buying longer-term securities to add liquidity and lower long-term interest rates. Quantitative tightening (QT) is the opposite process, where the Fed reduces its balance sheet by allowing securities to mature or actively selling them, effectively draining liquidity from the financial system.
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FAQs About the Federal Funds Rate
What is the federal funds rate right now? As of late 2025, the target range is 3.75% to 4%, with an effective rate of 3.88%.
What does it mean when the Fed raises interest rates? It indicates the Fed is trying to cool the economy, reduce inflation, moderate spending, and prevent asset bubbles.
Who decides interest rates in the US? The Federal Open Market Committee, consisting of Fed Board members and regional bank presidents, with the New York Fed president holding a permanent voting seat.
Why does the Fed raise rates during inflation? Higher rates reduce borrowing and spending across the economy, which helps bring price growth back toward the 2% target by dampening demand-side pressures.
How does the federal funds rate affect savings and borrowing? Credit cards, HELOCs, ARMs, and personal loans respond quickly and directly. Mortgages respond indirectly and more gradually. Savings yields decline after rate cuts, and rise during hiking cycles.
When did the Fed start raising rates again? In the 2022 tightening cycle, beginning in March 2022, after a prolonged period of near-zero rates following the COVID-19 pandemic.
Is the federal funds rate the same as my credit card interest rate? No, but credit card APRs track the prime rate, which itself moves in lockstep with the federal funds rate.
What is the effective federal funds rate (EFFR)? The actual market rate at which banks lend reserves overnight, calculated daily by the New York Fed using the volume-weighted median of all interbank overnight transactions.
Why is the federal funds rate important? It influences virtually all borrowing costs, shapes economic cycles, guides financial markets, determines liquidity across the economy, and serves as a critical signal of the Federal Reserve's policy stance to investors worldwide.