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Knowing how the Federal Reserve's monetary policy decisions impact your interest earnings over time is key to making an informed decision about where to put your money. With a potential rate hike looming, a certificate of deposit (CD) may be a good long-term option.

CDs can be a smart way to guarantee steady returns, especially if interest rates increase. When the Fed raises rates, CD rates typically tend to follow, though the timing and size of the increase can vary.

Here's why you may want to consider opening a CD before the Fed's next meeting.

A CD is a type of bank account that requires you to keep your money on deposit for a set period, known as the term. CD terms can range from a few months to several years.ย 

In exchange for keeping your money tied up, CDs pay a fixed interest rate for the entire term. And CD rates are typically higher than what you'd get from a regular savings account. Once the CD reaches its maturity date, you can withdraw your original deposit plus any accrued interest.

Read more: Fixed rate vs. variable rate: What's the difference, and why is it important?

The federal funds rate is the target interest rate set by the Federal Reserve. It determines the rate banks charge one another to borrow funds overnight to meet reserve requirements.

The federal funds rate is expressed as a range, which is currently 3.50%โ€“3.75%. Banks negotiate a specific rate between each other within that range.

The Fed uses the federal funds rate as a tool to quell inflation. When inflation is high, the Fed raises its target rate to make borrowing money more expensive, which discourages consumer spending and helps bring everyday costs down. When the economy needs a boost, the Fed might initiate a series of rate cuts to encourage more spending and borrowing.

Read more: A look at the federal funds rate over the past 50 years: How has it changed?

Changes to the federal funds rate have major implications for financial institutions and the economy at large. But these decisions also affect your bottom line.

Although the Fed's rate doesn't directly impact the interest rates set by individual banks for consumer deposit accounts and loans, they are closely correlated. When the Fed raises its rate, for example, interest rates on deposit products โ€” including savings accounts and CDs โ€” also tend to go up. And when it lowers its rate, deposit interest rates generally fall.

Also read: CD ladder vs. bond ladder: Which strategy is best for maximizing interest?

The Fed will meet again on Sept. 15-16 to decide whether to adjust the federal funds rate. In its last meeting, the committee maintained the target range for the federal funds rate at 3.50%โ€“3.75%.

Markets believe the Fed will hike its benchmark interest rate this week. However, it's not possible to predict the Fed's next move with 100% certainty.

Read more: What time is the Fed's meeting?

If the Fed decides to raise the federal funds rate at some point this year, CD rates will soon start to increase. However, if you open a CD, you will lock in today's rates on your balance and continue earning that deposit rate.

If the rate hike is expected, there's a chance banks have already priced in the increase into today's CD rates. Waiting may not bring you a higher rate.

Even so, we can't know for sure what will happen. So, while you wait for the Fed's official announcement about how rates will change (or not), it could be a good time to evaluate where you're currently keeping your savings and consider opening a new CD.

Should the Fed decide to keep rates unchanged, it won't have a direct impact on CD rates, so now is as good a time as any to open an account and take advantage of historically high interest rates. As it stands, the best CD rates today hover around 4%.

But if the Fed does decide to lower rates, now might be your last chance to lock in today's competitive CD rates.

Is a certificate of deposit a good investment right now? That depends on your timeline and goals. Learn more about whether now is a good time to invest in CDs.

Are CD rates expected to go up at all this year? Here's what the experts think about where CD rates are headed in 2026.

CD terms range from a few months to several years. So how do you choose the best CD term? This guide will walk you through it.

The Fed holds eight regularly scheduled meetings each year. Here's what to expect.

We identified the best CD rates and accounts available today based on interest rates, fees, and more. See our top picks across 6-month, 1-year, 18-month, and 2-year terms.

The Federal Reserve's interest rate decisions can directly impact your wallet. So what's better: high or low interest rates?