The federal funds rate is the interest rate banks charge each other for overnight loans. Banks must hold a certain amount of reserves. Some end the day with extra cash sitting idle. Others come up short. So they lend to each other overnight to balance things out. The rate they charge on those loans is the federal funds rate.

That’s the literal definition. But almost nobody outside a bank’s treasury desk ever takes out a loan like this. So why does this obscure rate get more media coverage than almost any other number in finance? The answer is that it functions as a floor. Every other interest rate in the economy builds on top of it. That includes car loans, credit cards, and what your bank pays you on a savings account.

Here’s a detail that trips people up. The Federal Reserve doesn’t set the federal funds rate directly. It sets a target range instead, currently 3.50% to 3.75%. The actual rate that banks charge each other is called the effective federal funds rate. It floats somewhere inside that range based on real trading activity. Right now it sits close to 3.63%, near the midpoint.

Why not just pick one fixed number? Because the Fed can’t force banks to lend at an exact rate. Banks negotiate with each other in a real market. What the Fed can do is nudge that market toward its target using specific tools. That’s exactly what happens behind the scenes after every rate decision. Our How the Federal Reserve Controls Interest Rates guide walks through those tools in detail, including interest on reserve balances and open market operations.

The Federal Open Market Committee makes this call. It’s a group of twelve voting members inside the Federal Reserve System. It meets eight times a year on a fixed calendar. Each meeting ends with a vote: raise the target range, lower it, or hold it steady.

Most meetings actually end in “hold.” Central bankers move carefully. An unexpected rate change can rattle markets and shift behavior across the entire economy overnight. The next scheduled decision lands on September 16, 2026. Traders will parse every word of the Fed’s statement for hints about where the range is headed next.

Between meetings, the rate doesn’t just sit still and wait. The New York Fed’s trading desk works daily to keep the effective rate inside the target range, buying and selling securities as needed. So while the FOMC only meets eight times a year, someone is watching this number every single business day.

The federal funds rate has swung wildly over the decades. Its history says a lot about what the Fed was fighting at any given moment. In 1981, facing runaway inflation, the Fed pushed the rate as high as 20%. That’s a level that sounds almost unbelievable by today’s standards. It broke inflation’s back, but it also triggered a sharp recession.

After the 2008 financial crisis, the Fed cut the rate to near zero. It stayed there for seven years to support a fragile recovery. The rate went back to zero again in March 2020, right as the pandemic hit. It climbed aggressively once inflation surged in 2022. That hiking cycle added 525 basis points in about sixteen months, the sharpest tightening since the early 1980s. An easing cycle followed in 2024 and 2025. Six cuts brought the rate down to today’s range of 3.50% to 3.75%.

Looking at that full arc helps explain why a single quarter-point move gets so much attention today. Each decision sits inside a much longer story about inflation, recessions, and how quickly the economy can absorb a change in borrowing costs.

People often mix up the federal funds rate with the rates they actually see on paperwork. They’re related, but they’re not the same thing. The prime rate is what banks charge their most creditworthy customers. It typically sits about three percentage points above the federal funds rate. Right now, that puts prime around 6.75%. Most credit cards, personal loans, and home equity lines of credit get priced off prime, not off the federal funds rate directly.

Mortgages work differently. Fixed mortgage rates track the 10-year Treasury yield. That yield reflects investor expectations about the future, not just where the Fed sits today. That’s why a 30-year mortgage rate can move before a Fed decision. It can even move in the opposite direction from a rate the Fed just announced. Adjustable-rate mortgages behave more like credit cards. They move closer to the federal funds rate, usually with a short delay. If you’re weighing one type of loan against the other, our Fixed vs. Variable Rates guide covers exactly how that decision plays out.

The federal funds rate acts as the anchor for the Fed’s dual mandate: stable prices and maximum employment. Raise it, and borrowing gets more expensive. That slows spending and cools inflation. Cut it, and borrowing gets cheaper. That’s meant to encourage hiring and investment when the economy weakens.

Investors also watch it closely because it shapes the relationship between short-term and long-term interest rates, known as the yield curve. When short-term rates climb above long-term ones, the curve inverts. That inversion has historically been one of the more reliable warning signs of a coming recession. Our Yield Curve Inversion article explains that signal in more detail, including why it tends to work with such a long lead time.

Knowing what is the federal funds rate right now is useful trivia. Knowing what it means for your own accounts is more valuable. If you’re shopping for a home, our Mortgage Calculator lets you test how different rate scenarios change your monthly payment. If a rate hike has pushed up your credit card’s APR, our Credit Card Payoff Calculator shows exactly how much that costs you over time. It also shows how much faster extra payments close the gap.

On the saving side, banks don’t always pass along a higher federal funds rate quickly. It’s worth checking your actual yield rather than assuming it moved with the headlines. Our APY Calculator converts your account’s stated rate into what you’re really earning once compounding is factored in. That makes it easy to see whether your money is still working as hard as it could be.