CD interest rates are set by the bank or credit union and vary based on how long you lock your money away
The interest rate on a certificate of deposit depends on three things: the financial institution offering it, the length of the term you choose, and the current economic environment. Banks and credit unions set their own rates — there is no single "CD rate" across the industry. A one-year CD at one bank might pay 4.5%, while another bank pays 4.2% for the same term. Longer terms usually pay more than shorter ones, though not always.
The rate you see advertised is what the bank promises to pay you for the entire term. If you open a two-year CD at 4.75%, that rate stays locked in for two years, even if rates rise or fall in the market. You know exactly what you will earn before you deposit a dollar.
Key Takeaways
- Each bank sets its own CD rates, so comparing offers from multiple institutions can mean earning hundreds of dollars more on the same deposit.
- Longer CD terms typically offer higher rates than shorter ones, but the difference varies by bank and market conditions.
- Your rate is fixed for the entire term — it will not change even if interest rates in the economy rise or fall.
- The rate you earn is separate from any penalty you pay if you withdraw money before the CD matures.
How banks decide what rate to offer
Banks use the Federal Reserve's benchmark interest rate as a starting point, but they do not have to match it. The Fed sets a target range — currently between 5.25% and 5.50% — but banks decide how much of that they pass on to CD holders. A bank offering 4.75% on a one-year CD is keeping some of that spread as profit.
Competition also drives rates. If one bank in your area is offering 5.0% and another is offering 4.2%, the lower-rate bank may lose customers and raise its offer. Online banks often pay higher CD rates than brick-and-mortar banks because they have lower overhead costs and need to attract deposits from people who cannot walk into a branch.
The bank's own funding needs matter too. If a bank needs deposits quickly, it may raise CD rates to pull in money. If it already has plenty of deposits, it may lower rates because it does not need to compete as hard.
Why longer terms usually pay more
A bank wants to keep your money locked in for as long as possible. The longer you commit, the more the bank can lend that money out or invest it. In exchange for tying up your money for five years instead of one year, the bank pays you a higher rate. This is called the yield curve, and it rewards patience.
However, the yield curve can flatten or even invert. During certain economic periods, a one-year CD might pay nearly as much as a five-year CD, or even more. This happens when banks expect interest rates to fall, so they do not need to offer much extra to lock in longer terms. Checking rates across multiple terms helps you spot these situations.
How the rate translates to actual dollars
The interest rate is expressed as an annual percentage rate, or APY. This is the total return you will earn in one year, including compounding. If you deposit $10,000 in a one-year CD paying 4.5% APY, you will earn $450 in interest (before taxes). If the CD compounds monthly, you earn a tiny bit more because interest earns interest each month, but the APY already accounts for that.
For terms longer than one year, you multiply the annual amount by the number of years. A $10,000 deposit in a three-year CD at 4.5% APY earns roughly $1,350 total (the math is slightly more complex because of compounding, but this is close). The bank will show you the exact amount when you open the CD.
The interest is taxed as ordinary income in the year you earn it, even if you do not withdraw it until the CD matures. Some people open CDs in tax-advantaged accounts like IRAs to defer or reduce that tax burden.
Comparing rates across banks and terms
Shopping around takes an hour and can save you hundreds of dollars. Start by checking your current bank's rates, then look at online banks, credit unions, and any local banks in your area. Websites that aggregate CD rates can show you what is available, though you will need to visit each bank's site to confirm the current offer and open an account.
Pay attention to the term length and the minimum deposit. A bank might offer 5.1% on a one-year CD but require $25,000 to open it, while another bank offers 4.9% with a $1,000 minimum. The higher rate is not always the better deal if you cannot meet the minimum or do not want to lock money away for that long.
Also check the early withdrawal penalty. Some banks charge three months of interest if you withdraw before maturity; others charge six months or a flat fee. A slightly higher rate is not worth it if the penalty is steep and you might need the money.
What happens when your CD matures
When the term ends, the bank will either automatically renew the CD at the current rate or move the money to a regular savings account. Check your CD agreement to see what your bank does. If rates have fallen, you might not want to renew at the new rate — you can withdraw the money and shop for a better rate elsewhere, or move it to a different type of account.
Some banks send a notice before maturity telling you the new rate and giving you a window to decide. Others do not, so mark your calendar and contact the bank a week before maturity if you want to make a choice rather than accept the automatic renewal.
CD laddering to manage rate risk
If you are unsure whether rates will rise or fall, you can split your money across CDs with different maturity dates. This is called laddering. For example, you might open a one-year CD, a two-year CD, and a three-year CD with equal amounts. Each year, one CD matures and you can reinvest it at whatever the current rate is. This spreads your risk and lets you take advantage of rate changes without waiting years to access your money.
Laddering works best when you have a larger lump sum to divide. If you only have $5,000, splitting it three ways leaves you with small amounts in each CD, which may not meet some banks' minimums or may earn less interest overall.
Frequently Asked Questions
Can the bank change my CD rate before it matures?
No. Once you open a CD, the rate is locked in for the entire term. The bank cannot lower it if market rates fall, and you do not benefit if rates rise. That is the trade-off of a CD — certainty in exchange for missing out on higher rates.
Is a higher CD rate always better?
Not if the early withdrawal penalty is steep or the minimum deposit is too high. A 5.2% rate with a $50,000 minimum and a six-month penalty is not better than a 5.0% rate with a $1,000 minimum if you only have $10,000 or might need the money sooner. Compare the full terms, not just the rate.
Why do online banks pay more than my local bank?
Online banks have lower costs because they do not operate physical branches. They pass some of those savings to customers through higher CD rates. They are still FDIC-insured the same way, so the safety is identical — you are just getting paid more for your money.
What if I need my money before the CD matures?
You can withdraw it, but you will pay an early withdrawal penalty. This is usually three to six months of interest, though some banks charge a flat fee. The penalty is deducted from your interest earnings or from your principal if the penalty is larger than what you earned. Check your CD agreement to know the exact penalty before you open it.
Do I pay taxes on CD interest?
Yes. CD interest is taxed as ordinary income in the year you earn it, even if you do not withdraw the money. The bank will send you a 1099-INT form at tax time showing how much interest you earned. If the CD is in a traditional IRA, taxes are deferred until you withdraw from the IRA.