CD rates change daily and vary by bank, so the highest rate today may not be the highest tomorrow
A certificate of deposit (CD) is a savings account where you agree to leave money untouched for a set period — usually three months to five years — in exchange for a fixed interest rate. The rate you receive depends on three things: which bank or credit union you use, how long you lock the money away, and what the market is doing that day. There is no single "highest rate" that applies everywhere; instead, you need to check multiple banks to find which one offers the best rate for the term length you want.
Banks post their CD rates on their websites, and you can compare them without opening an account. Online banks typically offer higher rates than brick-and-mortar banks because they have lower overhead costs. Credit unions sometimes offer competitive rates to their members. The rate you see posted is the one you will receive if you open the CD that day, but rates shift as the Federal Reserve adjusts its benchmark rate and as banks compete for deposits.
Key Takeaways
- CD rates posted on bank websites are current as of that day, but change frequently, so checking multiple banks on the same day gives you the most accurate comparison.
- Online banks and credit unions typically post higher rates than traditional banks, though you should verify the bank is FDIC-insured or the credit union is NCUA-insured before depositing.
- The term length you choose — three months, one year, three years, or five years — directly affects the rate; longer terms usually pay more, but not always.
- Once you open a CD and lock in a rate, that rate does not change, even if market rates rise or fall during your term.
- Early withdrawal from a CD usually costs you some or all of the interest you earned, so only deposit money you will not need before the maturity date.
How to find current rates across banks
Start by visiting the websites of banks you already use or banks you have heard of, and look for their CD rates page. Most banks list rates by term length in a table format. Write down the rate and the term for each one. Then visit three to five online banks — names like Ally, Marcus, American Express Personal Savings, and Discover all publish rates publicly — and record their rates for the same term lengths.
Credit unions require membership, but if you belong to one, call or visit their website to see what they offer. Some credit unions offer rates that beat online banks, especially on shorter terms. Once you have gathered rates from at least five institutions, compare them side by side for the term you want. The difference between the highest and lowest rate on a one-year CD might be 0.5% or more, which translates to real money if you are depositing $10,000 or more.
Rates change constantly, so if you find a rate you like, open the CD the same day or the next morning. Waiting a week often means the rate has dropped. If you are comparing rates across multiple days, note the date you checked each one, because a rate from Monday may not be available on Friday.
Understanding term length and how it affects your rate
CD terms range from as short as one month to as long as ten years, though three months, six months, one year, three years, and five years are the most common. Generally, longer terms pay higher rates because the bank gets to hold your money longer and can lend it out or invest it. However, this rule breaks down sometimes — a one-year CD might pay 4.5% while a three-year CD pays 4.3%, depending on what the market expects to happen to interest rates.
Choose a term based on when you will actually need the money. If you might need it in two years, do not lock it into a five-year CD, because withdrawing early will cost you. If you are certain you will not touch it for five years and rates are high, a five-year CD locks in that rate for the full period. Some people use a CD ladder — opening multiple CDs with different maturity dates so that money becomes available at regular intervals — but that requires more tracking and more decisions about where to put the money when each CD matures.
FDIC insurance and why it matters
Before you open a CD anywhere, verify that the bank is FDIC-insured or the credit union is NCUA-insured. These are federal insurance programs that protect your deposit up to $250,000 per account holder per institution. If the bank fails, the government reimburses you. Most major banks and online banks carry this insurance, but always check the bank's website or call to confirm.
If you are depositing more than $250,000, you can split it across multiple banks to stay within the insurance limit. For example, you could open a $250,000 CD at Bank A and a $250,000 CD at Bank B, and both would be fully insured. The insurance covers the principal and the interest you earn, so you do not lose money if the institution fails.
What happens when your CD matures
When the term ends, the bank will notify you — usually by email or mail — that your CD is maturing. You then have a window, typically seven to ten days, to decide what to do. You can withdraw the money, open a new CD at the same bank, or move the money elsewhere. If you do nothing, many banks automatically renew the CD at whatever rate they are currently offering, which might be lower than your original rate.
Read the maturity notice carefully so you do not miss the window. If you want to move your money to a different bank for a better rate, initiate a transfer as soon as you receive the notice. Some banks charge a fee to close a CD early, but once it has matured, you can withdraw or transfer without penalty.
Early withdrawal penalties and when they apply
If you need to withdraw money before the CD matures, the bank will charge you a penalty. The penalty is usually a certain number of months of interest — for example, three months of interest on a one-year CD, or six months of interest on a five-year CD. Some banks calculate it differently, so check the terms before you open the CD. The penalty comes out of your interest earnings first, and if the penalty is larger than what you have earned, it comes out of your principal.
Example: You open a $10,000 one-year CD at 4.5% interest. After six months, you need the money. You have earned about $225 in interest. The bank charges a three-month penalty, which is about $112.50. You receive $10,225 minus $112.50, or $10,112.50. You still come out ahead, but you earned less than if you had left it alone.
The only way to avoid this penalty is to not withdraw early. If there is any chance you will need the money within the term, choose a shorter term or keep the money in a regular savings account instead, even if the rate is lower.
Comparing CDs to other savings options
A CD is not the only place to put money you want to keep safe. A high-yield savings account offers a lower rate than a CD but lets you withdraw money anytime without penalty. A money market account is similar to a savings account but may offer a slightly higher rate. Both are FDIC-insured and both let you access your money if you need it.
If you are certain you will not need the money for several years and rates are high, a CD locks in that rate and protects you if rates fall. If you might need the money or if you want flexibility, a high-yield savings account is safer because you do not face a penalty for withdrawing. Some people use both — a CD for money they definitely will not touch, and a savings account for an emergency fund.
Frequently Asked Questions
Do I have to open a CD in person at a bank branch?
No. Most banks and all online banks let you open a CD entirely online through their website. You will need to provide your name, address, Social Security number, and banking information. The bank will verify your identity and transfer the money from your linked account. You never need to visit a branch.
Can I add money to a CD after I open it?
No. A CD is a fixed deposit. Once you open it, the amount stays the same until it matures. If you want to deposit more money, you must open a separate CD. Some banks offer "add-on CDs" that let you deposit more during the term, but these are less common and often pay lower rates.
What if the rate drops after I open my CD?
Your rate does not change. You are locked in for the full term at the rate you agreed to when you opened it. This is actually an advantage — if rates fall, you keep earning the higher rate you locked in. If rates rise, you earn less, but you knew that risk when you opened the CD.
How often should I check CD rates?
Rates change daily, sometimes multiple times per day. If you are actively looking to open a CD, check rates once a day for a few days to see the trend. Once you decide to open one, do it that day or the next morning. If you already have a CD, you do not need to check rates until it is close to maturing.
Is there a minimum deposit required to open a CD?
Most banks require a minimum deposit, typically $500 to $2,500, though some online banks have no minimum. Check the bank's website before you start the process. If a bank requires a minimum you cannot meet, move on to another bank.