What is a certificate of deposit? A certificate of deposit (CD) is a savings product where you agree to leave a fixed amount of money with a bank or credit union for a set period, and in return you earn a fixed interest rate that is usually higher than a regular savings account. In some countries the same idea is called a term deposit or a fixed deposit.
This guide explains how a CD works, what happens if you withdraw early, how it compares with other savings options, and when it makes sense to use one. Last updated: November 2026.
What Is a Certificate of Deposit and How Does It Work?
When you open a CD, you deposit a lump sum and choose a term, which is the length of time the money stays locked. Terms usually range from three months to five years. The bank agrees to pay a fixed interest rate for the whole term. When the term ends, which is called maturity, you receive your original deposit plus the interest you earned.
The trade-off is simple: you give up easy access to your money, and the bank rewards you with a predictable return. Because the rate is fixed, it does not fall if market interest rates drop after you open the CD. It also does not rise if they go up. If you want to understand why rates move, read our guide on how interest rates work.
The Three Things to Know: Amount, Term and Rate
- Amount: Many banks ask for a minimum deposit, which can be low or can be a few thousand dollars.
- Term: Longer terms often pay higher rates, but your money stays locked for longer.
- Rate: Compare the APY (annual percentage yield), because it includes the effect of compounding.
A Simple Example of a CD
Imagine you deposit 10,000 in a 12-month CD at 4% APY (any currency works the same way). After one year you receive about 10,400: your 10,000 plus roughly 400 in interest. You knew the exact result on day one, and the rate could not change during the year.
Now compare a savings account that starts at 4% but later falls to 3%. The CD would have protected your higher rate for the full term. The opposite can also happen: if savings rates rise, a CD holder stays on the older, lower rate.
CD vs Savings Account vs Money Market Account
| Feature | CD | High-yield savings | Money market account |
|---|---|---|---|
| Interest rate | Fixed for the term | Variable, can change | Usually variable |
| Access to money | Locked until maturity | Flexible | Flexible, may have limits |
| Early withdrawal | Penalty usually applies | Usually none | Usually none |
| Best for | Money you will not need soon | Emergency fund and flexible savings | Savings plus occasional spending |
If you are still deciding between flexible and locked savings, see our guide to a high-yield savings account.
What Happens If You Withdraw Early?
Taking money out before maturity usually triggers an early withdrawal penalty, often a number of months of interest. For example, if a bank charges six months of interest on a 10,000 CD earning 4%, the penalty could be about 200. Rules differ from bank to bank, so always read the account terms before you open the CD.
This is why a CD is a poor home for emergency money. Build your safety net first with our emergency fund guide, and use a CD only for money you can leave alone.
Common Types of CDs
Traditional CD
Fixed rate, fixed term and an early withdrawal penalty. This is the standard version.
No-Penalty CD
Lets you withdraw early without a fee, usually after a short waiting period. The rate is often a little lower.
Bump-Up CD
Lets you request a higher rate once or twice if the bank raises its rates during your term.
Jumbo CD
Requires a large deposit, often 100,000 or more, and may pay a slightly higher rate.
What Is a CD Ladder?
A CD ladder splits your money across CDs with different terms so some of it becomes available regularly. For example, you could divide 10,000 into five CDs of 2,000 each, with terms of one, two, three, four and five years. Each year one CD matures. You can spend the money or reinvest it into a new five-year CD at the current rate. A ladder gives you both higher long-term rates and regular access.
Are CDs Safe?
CDs are among the lower-risk ways to save because the return is fixed and deposits are usually protected. In the United States, deposits at insured banks are covered up to $250,000 per depositor, per bank, per ownership category by the FDIC, and credit unions have similar cover through the NCUA. You can read how it works on the official FDIC deposit insurance page. Other countries have their own deposit protection schemes, so check the limit in your country.
The main risk is not losing your money. It is that inflation can grow faster than your CD rate, which reduces what your money can buy. Our guide on how inflation eats your savings explains this in detail.
Pros and Cons of a Certificate of Deposit
Pros
- Guaranteed, predictable return
- Usually higher rates than basic savings accounts
- Deposit protection at insured banks
- Removes the temptation to spend
Cons
- Money is locked until maturity
- Early withdrawal penalties
- Rate stays fixed if market rates rise
- Returns may not beat inflation
When Does a CD Make Sense?
A CD fits money you will need on a known date, such as a house deposit in two years or a tuition payment, and money you want to keep safe from market swings. It also makes sense when savings rates look high and you want to lock them in before they fall. A CD may not suit you if you have no emergency fund yet, if you may need the cash soon, or if you expect rates to rise.
How to Open a CD in 5 Steps
- Decide how much you can lock away without touching it.
- Pick a term that matches when you will need the money.
- Compare the APY and the early withdrawal penalty at several banks and credit unions.
- Confirm the bank is covered by deposit protection in your country.
- Open the account, fund it, and note the maturity date in your calendar.
Frequently Asked Questions
Can you lose money in a CD?
Not from market changes, because the rate is fixed. You can lose some earned interest through an early withdrawal penalty, and in rare cases the penalty can exceed the interest earned.
What happens when a CD matures?
Most banks give you a short grace period, often a week or two, to withdraw the money or choose a new term. If you do nothing, many CDs renew automatically at the current rate.
Is interest on a CD taxable?
In many countries, yes. Interest is usually treated as income, so check the rules where you live.
Is a CD better than a savings account?
It depends on whether you value a locked, fixed rate or flexible access. Many people use both.
Final Thoughts
A certificate of deposit is a simple tool: lock your money, earn a known return, and get it back at maturity. It works best for money you will not need soon, alongside an emergency fund and flexible savings. Compare rates, read the penalty terms, and choose a term you can truly keep.
Disclaimer: This article is for general education only and is not financial, tax or legal advice. Rates, rules and deposit protection vary by country and bank, so check current terms before you decide.