how the federal reserve sets rates and why it matters

In short

A friend of mine once asked why her savings rate dropped the same week her mortgage offer changed. Both moved because of one meeting in Washington. The Federal Reserve sets a target range for a short term rate that banks charge each other. That one rate then ripples out to car loans, credit cards, and savings accounts. You cannot control it, but you can learn to read it. Know where your own debts and savings sit, and a rate change stops being a surprise.

The whole of it

What it is

I once watched a neighbor study a weather map like it was a letter from an old friend. He did not control the storm, but he knew what to bring in from the porch. The Federal Reserve rate works much the same way for a household.

The Federal Reserve is the central bank of the United States. Congress created it in 1913. A group inside it, called the Federal Open Market Committee, meets about eight times a year to set a target for the federal funds rate. That is the rate banks charge one another for overnight loans. Think of it as the wholesale price of borrowing money for a single night.

The Fed does not set your mortgage rate. It does not set your credit card rate either. It sets the foundation, and lenders build their own prices on top. That is a small point, but it clears up a lot of confusion.

The Fed also has two jobs given to it by Congress. One is keeping prices stable. The other is supporting maximum employment. People call these the dual mandate. When prices climb too fast, the Fed leans toward higher rates. When jobs are hard to find, it leans toward lower ones.

How it works

If you have ever adjusted a thermostat, you already understand the idea. Nobody sits in the walls moving the heat by hand. You set a target, and the system works toward it.

The committee announces a target range for the federal funds rate. Then the Fed uses its tools to keep the rate inside that range. One tool is the interest it pays banks on money they keep at the Fed. A bank will not lend to another bank for less than it can earn by simply parking the money there. That sets a floor under the market.

Once the base rate moves, the rest follows in steps. Banks pay more or less to borrow, so they charge more or less to lend. Many credit cards and home equity lines are tied to the prime rate, which banks set a little above the federal funds rate. When the Fed raises its target, those variable rates often rise within a billing cycle or two. The card agreement spells out the exact timing.

Other loans move more slowly. A fixed rate mortgage follows longer term market rates, which respond to what investors expect the Fed to do for years, not just next month. That is why mortgage rates sometimes shift before the Fed even meets. Savings accounts and certificates of deposit follow too, though banks tend to pass along a raise to savers more slowly than they pass along a raise to borrowers. Fair or not, that is how it often goes.

The numbers, and where to find yours

You have probably heard a news anchor say the Fed raised rates by a quarter point. That means 0.25 percentage points. It is a small number with a long reach.

The current target range for the federal funds rate is the current figure, which the official source publishes each year. The Federal Reserve Board posts it on its website, along with a statement after every meeting. The committee's meeting schedule is posted there as well, so you can see the next date well ahead of time.

Your own numbers live in your own paperwork. A credit card statement lists the annual percentage rate, and the cardholder agreement says whether it is variable and what it is tied to. A mortgage note says whether the rate is fixed or adjustable. A savings account disclosure lists the annual percentage yield. The borrower has to be told these terms in writing, so they are sitting somewhere in a drawer or an online account.

Take twenty minutes with a cup of coffee and write down each rate you pay and each rate you earn. Mark which ones are variable. That short list is worth more than any forecast.

A worked example

Let me tell you about a woman named Dolores. She is fifty four, teaches middle school, and carries a credit card balance of $6,000 at a variable rate of 21 percent a year. She also has $10,000 in a savings account paying 1 percent a year.

The Fed raises its target by 0.50 percentage points, which is half of one percent. Her card agreement ties the rate to prime, so her card rate rises by the same 0.50 points, from 21 percent to 21.5 percent. Her bank, never in a hurry on the savings side, raises her savings rate by 0.10 points, from 1 percent to 1.1 percent.

Here is what that does to her pocket over a year. Her card interest was $6,000 times 0.21, which is $1,260 a year. Now it is $6,000 times 0.215, which is $1,290 a year. That is $30 more in interest for her to pay. Her savings interest was $10,000 times 0.01, which is $100 a year. Now it is $10,000 times 0.011, which is $110 a year. That is $10 more in interest for her to earn.

Dolores comes out $20 behind, since $30 minus $10 is $20. It is not a disaster. It is a quiet nudge, the kind that adds up. She can see it in her own numbers, and that is the whole point. She now knows her card is the place where a rate change bites hardest, and that her savings account is slow to share the good news.

Notice that she did not need a degree in economics. She needed her statements and a pencil.

Where it goes wrong

I have made my share of mistakes with money, and most of them came from assuming. So let me name a few assumptions that trip people up.

The first is believing the Fed sets every rate. It sets one. Everything else is a lender's choice, shaped by that one rate and by competition. Two banks can react very differently to the same announcement.

The second is expecting instant change. Fixed rate loans already signed do not move. A fixed rate mortgage keeps its rate for the life of the loan, whatever the Fed does later. Only variable rate debt follows quickly, and even then the agreement sets the timing.

The third is chasing headlines. Markets often move on what people expect the Fed to do, not on what it does. By the time the announcement arrives, some of the change is already priced in. Reacting to every news story is tiring, and it rarely helps.

The fourth is forgetting the other side of the ledger. Higher rates cost borrowers more, but they can pay savers more. Lower rates do the reverse. Neither direction is good or bad for everybody. It depends on which side of the table a person sits on, and many households sit on both.

Last, a rate change is not a prediction about your life. It is a price. Prices move, and a steady person plans for that.

Questions to answer before you leave this page

Do you know which of your debts carry a variable rate, and have you found the line in your agreement that says so? Can you say, without looking, what your savings account pays and when that rate last changed? If the target rate moved by half a percentage point tomorrow, would you know which of your balances would feel it first? Have you written down your own rates in one place, so the next announcement finds you ready rather than surprised? And when the next meeting date comes up on the Federal Reserve Board's calendar, will you check how your own paperwork lines up with it?