What Is Federal Funds Rate?
The federal funds rate is the interest rate banks charge each other for overnight loans, set by the Federal Reserve. Learn how it affects mortgages, savings, and stocks.
Definition
The federal funds rate is the target interest rate set by the Federal Reserve (the Fed) at which banks lend money to each other overnight. It is the most important interest rate in the U.S. economy because it influences virtually every other interest rate: mortgages, car loans, credit cards, savings accounts, and corporate borrowing. When the Fed raises or lowers this rate, the effects ripple through the entire financial system.
The rate is set by the Federal Open Market Committee (FOMC), which meets eight times per year. The Fed raises the rate to cool an overheating economy and fight inflation, and lowers it to stimulate a slowing economy and encourage borrowing and spending. These decisions are among the most closely watched events in global finance.
As of 2026, the federal funds rate reflects the Fed's ongoing balancing act between controlling inflation and supporting economic growth. Rate decisions are based on employment data, inflation readings (CPI, PCE), GDP growth, and global economic conditions. The Fed's "dual mandate" is maximum employment and stable prices (targeting 2% inflation).
Real-World Example
When the Fed raised rates from near-zero to 5.25-5.50% in 2022-2023 to fight inflation, the effects were immediate and widespread: 30-year mortgage rates jumped from 3% to 7.5%, crushing homebuyer affordability. Car loan rates increased from 4% to 7%. But high-yield savings accounts went from paying 0.5% to 5%. The same rate that makes borrowing expensive makes saving more rewarding. Every basis point matters across the entire economy.
Why It Matters
The federal funds rate affects your daily life more than almost any other economic variable. It determines how much you pay to borrow (mortgages, loans, credit cards) and how much you earn on savings (HYSAs, CDs, money markets). For investors, rate decisions move stock prices because they affect corporate borrowing costs, consumer spending, and the relative attractiveness of stocks versus bonds. Understanding Fed policy helps you make better decisions about when to lock in mortgage rates, whether to invest in growth or value stocks, and how to position your portfolio.
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Frequently Asked Questions
How does the federal funds rate affect mortgage rates?
Mortgage rates are not directly tied to the fed funds rate, but they are influenced by it. When the Fed raises rates, short-term borrowing costs increase for banks, which gets passed through to consumers. Mortgage rates also reflect Treasury yields, inflation expectations, and the housing market.
How does the federal funds rate affect stocks?
Lower rates are generally bullish for stocks (cheaper borrowing, higher valuations). Higher rates are generally bearish (more expensive borrowing, lower valuations, bonds become more attractive alternatives). Growth stocks are particularly sensitive to rate changes.
How often does the Fed change rates?
The FOMC meets eight times per year and can change rates at any meeting, though they sometimes hold steady for months or years. Major rate-changing cycles (raising or cutting) typically span 1-3 years with gradual adjustments of 0.25% per meeting.
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