You might feel some disappointment when you see your checking or savings account interest rate drop, or perhaps a small burst of excitement when it ticks upward.

These percentages can feel as unpredictable as the weather. However, banks do not set these rates arbitrarily. Instead, they respond to a complex web of economic signals, government policies, and competitive pressures to determine their figures. Understanding the forces behind this can help you better manage your expectations and decide where to deposit your money.

The Federal Reserve’s leading role

The single most influential factor in your bank account’s interest rate is the Federal Reserve, often simply called “the Fed.” As the central bank of the United States, this institution manages the nation’s monetary policy. While it does not directly dictate what a private bank pays you on your savings, it sets a target for the federal funds rate. This is the target interest rate for overnight loans between banks.

The Fed does not adjust these rates in a vacuum; it watches the economy’s vital signs, primarily inflation. If prices for goods and services rise too quickly, the Fed may increase interest rates to cool the economy. Higher rates make borrowing more expensive, which slows down spending and helps stabilize prices.

On the other hand, during an economic slowdown, the Fed might slash rates. This move encourages people to spend rather than save and makes it cheaper for businesses to take out loans for expansion. Your bank account’s interest rate is essentially a small cog in this massive machine designed to keep the national economy balanced.

How this may affect your bank account

When the Fed raises this rate, it becomes more expensive for banks to borrow money from one another. To compensate and bring in more cash, banks may raise the interest rates they offer to depositors like you. Conversely, when the Fed lowers rates to encourage spending and borrowing, banks usually follow suit by decreasing the interest they pay on savings.

Competition for your deposits

Beyond government policy, simple market competition drives interest rates. Banks need your deposits so they can use that money to provide loans to other customers, such as mortgages or small business loans. If a bank wants to grow its lending business but lacks the necessary cash, it will attract new customers by raising its annual percentage yield (APY), which reflects the total amount of interest earned in a year (including compounding).

You may notice that online-only banks often offer much higher rates than traditional brick-and-mortar institutions. Because these online banks avoid the high overhead costs of physical branches and large staffs, they may be able to pass those savings on to you in the form of higher interest rates. Many of them use competitive rates as a primary tool to lure depositors away from the big-name national banks.

While you cannot control the Fed or the global economy, you can control where you keep your cash. Staying informed about rate trends allows you to direct your money into accounts that offer the best returns for your specific needs. To learn more about how the Fed affects your wealth and to adjust your fiscal strategies accordingly, speak to a financial professional.