What Does the Fed Actually Control?
Whenever the Federal Reserve meets, the headlines inevitably say some version of the same thing: “The Fed raised interest rates” or “The Fed cut interest rates.” That makes it sound as though the Fed is sitting in Washington deciding what your mortgage, car loan, credit card, or HELOC will cost.
That isn't actually how it works.
When the Fed raises or lowers rates, it is targeting a very specific short-term interest rate called the federal funds rate. In simple terms, this is the rate tied to overnight borrowing in the banking system. It may seem far removed from your everyday finances, but it serves as an important benchmark for the cost of money throughout the economy.
When the Fed raises that rate, short-term borrowing generally becomes more expensive. Banks quickly adjust the rates they charge their customers, which is why things like credit cards, HELOCs, adjustable-rate loans and business lines of credit can become more expensive almost immediately. The prime rate, which is used as the benchmark for many of these loans, tends to move closely with Fed policy.
The reason the Fed does this is fairly straightforward. When inflation is running too high, making money more expensive can discourage borrowing and spending. Consumers may put off purchases, businesses may delay expansion, and demand throughout the economy can begin to cool. When the economy weakens too much, the Fed can do the opposite—lowering short-term rates in an effort to encourage borrowing, investment and spending.
But this is where the story gets especially important for anyone buying or refinancing a home: the Federal Reserve does not set mortgage rates.
A 30-year fixed mortgage is a long-term loan, so its pricing is influenced much more by the bond market and what investors believe will happen to inflation, economic growth and interest rates over many years. Mortgage-backed securities are particularly important, while the 10-year Treasury yield is often used as a useful benchmark for understanding the general direction of long-term rates.
This is also why mortgage rates don't necessarily move in the same direction as the Fed on the day of a meeting. The bond market is constantly trying to anticipate what comes next. If investors already expected the Fed to raise rates, that move may have been reflected in mortgage pricing weeks or even months earlier. And if the Fed cuts rates but investors become more concerned about future inflation, longer-term yields—and mortgage rates—can actually rise.
So when you hear that “the Fed raised rates,” remember that the Fed didn't just raise your mortgage rate. It changed the price of very short-term money, which then works its way through the financial system in different ways.
The Fed controls an important lever. The market determines much of what happens next. And if you're watching mortgage rates closely, the Fed is only part of the story.
