A CD is a savings account where you agree to leave your money untouched for a set time in exchange for a higher interest rate

A CD stands for "certificate of deposit." It is a type of savings account offered by banks and credit unions. The basic idea is straightforward: you give the bank a sum of money, agree not to touch it for a specific period (called the "term"), and in return the bank pays you a higher interest rate than a regular savings account would.

The money you deposit earns interest — that is, the bank pays you extra money for letting them use your funds. When your term ends, you get back your original deposit plus all the interest it earned. The catch is that if you withdraw the money before the term is over, you will usually pay a penalty, which means losing some or all of the interest you earned.

CDs are one of the safest places to keep money because they are insured by the FDIC (Federal Deposit Insurance Corporation) up to $250,000 per account. This means if the bank fails, your money is protected.

Key Takeaways

  • A CD requires you to deposit money for a fixed period — typically three months to five years — and pay a penalty if you withdraw early.
  • CDs pay higher interest rates than regular savings accounts because the bank knows exactly how long it has to use your money.
  • Your deposit and interest are insured by the FDIC up to $250,000, making CDs one of the safest savings options.
  • The interest rate and term length are locked in when you open the account, so you know exactly what you will earn.
  • CDs work best for money you do not need to access for several months or years.

How the interest rate and term work together

When you open a CD, two things are set from the start: the interest rate and the term length. The interest rate is the percentage of your money the bank will pay you as interest. The term is how long you agree to leave the money in the account — common terms are three months, six months, one year, two years, and five years.

Generally, longer terms come with higher interest rates. A five-year CD might pay more interest than a one-year CD because the bank gets to hold your money for longer. However, this varies — sometimes shorter-term CDs pay competitive rates, especially when interest rates in the economy are changing. You can compare rates across different banks to find the best offer for the term you want.

Once your term ends, you have a short window (usually seven to ten days) to decide what to do with your money. You can withdraw it, open a new CD at the current rate, or move it to a different account. If you do nothing, many banks will automatically renew your CD at whatever the current rate is.

What happens if you need the money early

The main drawback of a CD is that withdrawing your money before the term ends costs you. Most banks charge an early withdrawal penalty, which is typically a certain number of months' worth of interest. For example, a penalty might be three months of interest, meaning if you withdraw after six months of a one-year CD, you lose three months' worth of the interest you earned.

Some banks offer "no-penalty CDs" that let you withdraw without a penalty, but these usually pay lower interest rates to make up for the flexibility. It is a trade-off: more flexibility means less interest earned.

Before opening a CD, think carefully about whether you will need the money during the term. CDs work best for savings you genuinely will not touch — an emergency fund, money for a goal that is years away, or cash you want to protect from the temptation to spend it.

How CDs compare to regular savings accounts

A regular savings account lets you deposit and withdraw money whenever you want with no penalty. However, the interest rate is much lower — often less than one percent per year. A CD locks up your money but pays significantly more interest in return.

The choice depends on your situation. If you need quick access to your money, a savings account is the right choice. If you have money you will not need for months or years, a CD usually earns you more. Some people use both: a savings account for emergencies and a CD for longer-term goals.

Different types of CDs and what they offer

Most CDs work the way described above — you deposit a lump sum, wait out the term, and collect interest at the end. But banks also offer variations:

  • Bump-up CDs let you request a higher interest rate once during the term if rates rise in the market.
  • Liquid CDs let you withdraw a portion of your money without penalty, though usually only once.
  • Callable CDs let the bank end the CD early if interest rates drop, which protects the bank but not you.
  • Jumbo CDs require a larger minimum deposit (often $100,000 or more) and sometimes pay higher rates.

These variations are less common than standard CDs, and the terms vary widely by bank. Read the fine print before opening any CD to understand exactly what you are agreeing to.

How much money you need to open a CD

Most banks require a minimum deposit to open a CD, but the amount varies. Some banks have minimums as low as $500, while others require $1,000, $2,500, or more. A few online banks have no minimum at all. The minimum deposit does not affect the interest rate you receive — it is just the bank's requirement to open the account.

If you have less than the minimum, you have a few options: save up until you reach it, look for a bank with a lower minimum, or use a regular savings account in the meantime. There is no rush to open a CD if you are not ready.

Where to open a CD and what to compare

You can open a CD at any bank or credit union. Online banks often offer higher interest rates than brick-and-mortar banks because they have lower overhead costs. Credit unions sometimes offer competitive rates to their members.

When comparing CDs, look at the interest rate, the term length, the minimum deposit, and the early withdrawal penalty. A slightly higher rate on a longer term might not be worth it if you think you will need the money. Use online CD comparison tools to see what is available, but remember that rates change frequently — what you see today may be different next week.

Frequently Asked Questions

Can I open more than one CD at the same bank?

Yes. You can open multiple CDs with different term lengths or amounts at the same bank. Each CD is insured separately up to $250,000 by the FDIC, so if you have $250,000 in one CD and $250,000 in another, both are fully protected.

What if interest rates go up after I open my CD?

The rate on your CD is locked in and will not change, even if the bank raises rates for new CDs. This is why longer-term CDs carry more risk — if rates rise significantly, you are stuck with the lower rate. Some bump-up CDs let you request one rate increase, but this is not standard.

Do I have to pay taxes on CD interest?

Yes. The interest you earn on a CD is taxable income. The bank will send you a 1099-INT form at the end of the year showing how much interest you earned, and you report this on your tax return. This is true even if you do not withdraw the money.

Is a CD a good place to keep an emergency fund?

CDs are not ideal for emergency funds because you cannot access the money without paying a penalty. A regular savings account or money market account is better for emergencies because you can withdraw when ready. Use CDs for money you know you will not need for several months or longer.

What happens to my CD if the bank fails?

Your CD is insured by the FDIC up to $250,000. If the bank fails, the FDIC will return your deposit plus any interest earned up to that date. You do not need to do anything — the FDIC handles it automatically.