What you earn from a certificate of deposit depends on the rate your bank offers and how long you lock your money away

A certificate of deposit (CD) is a savings product where you give a bank a lump sum of money for a set period — usually three months to five years — and the bank pays you interest on that amount. The interest rate is fixed when you open the CD, meaning it does not change for the entire term. Banks typically offer higher interest rates on CDs than on regular savings accounts because you agree not to touch the money until the term ends.

The rate you receive depends on several factors: the current economic environment, the bank's own policies, how much money you deposit, and the length of your CD term. Longer terms usually come with higher rates. A one-year CD might pay 4.5 percent annually, while a five-year CD from the same bank might pay 5.2 percent. These numbers shift constantly as banks respond to Federal Reserve decisions and competition from other banks.

When your CD matures — meaning the term is over — you get back your original deposit plus all the interest earned. You can then withdraw the money, spend it, or roll it into a new CD. If you withdraw money before the maturity date, most banks charge a early withdrawal penalty, which is a fee that reduces your earnings.

Key Takeaways

  • CD interest rates are locked in when you open the account and do not change, even if the bank raises rates later.
  • Longer CD terms usually pay higher interest rates than shorter ones, but your money is tied up for that entire period.
  • You pay a penalty if you withdraw money before the CD matures, so only deposit money you will not need during the term.
  • Different banks offer different rates for the same CD term, so comparing banks before opening a CD can mean hundreds of dollars in extra earnings.
  • When your CD matures, you have a short window (usually seven to ten days) to decide whether to withdraw the money or roll it into a new CD.

How CD terms and rates connect

Banks use CD terms as a tool to manage their own cash flow. When you lock money into a five-year CD, the bank knows it can lend that money out for five years without you asking for it back. That certainty is valuable to them, so they pay you more interest in exchange. A three-month CD is riskier for the bank because you might withdraw and move your money elsewhere quickly, so the rate is lower.

The relationship between term length and rate is not always a straight line. Sometimes a two-year CD pays almost as much as a five-year CD, or a one-year CD pays more than an 18-month CD. This happens when banks are trying to attract money for specific time periods or when the economy is sending mixed signals about future interest rates.

The Federal Reserve's interest rate decisions also shape what banks offer. When the Fed raises its benchmark rate, banks gradually raise CD rates to stay competitive. When the Fed cuts rates, CD rates fall. This lag can take weeks or months, so timing matters if you are watching rates closely.

What early withdrawal penalties actually cost you

An early withdrawal penalty is a real cost that reduces your earnings. The penalty amount varies by bank and CD term. A typical penalty might be three months of interest, six months of interest, or a flat fee like $25. Some banks charge a percentage of your deposit.

Here is a concrete example: you open a $10,000 five-year CD paying 5 percent annually. After two years, you need the money and withdraw it early. The bank might charge a penalty equal to six months of interest — that is $250. You would receive $10,000 plus two years of interest (about $1,050), minus the $250 penalty, for a total of $10,800. You still earned money, but less than if you had left it alone.

Some banks offer no-penalty CDs that let you withdraw early without a fee, but they pay lower interest rates to offset that flexibility. A no-penalty CD might pay 4.0 percent while a standard five-year CD pays 5.2 percent. You have to decide whether the flexibility is worth the lower earnings.

Shopping for CD rates across banks

Banks compete for CD deposits, so rates vary significantly. One bank might offer 4.8 percent on a one-year CD while another offers 5.3 percent for the same term. Over one year on a $10,000 deposit, that 0.5 percent difference equals $50 in extra earnings — and the difference grows with larger deposits or longer terms.

Online banks typically offer higher CD rates than brick-and-mortar banks because they have lower overhead costs. A local credit union might offer competitive rates too, especially if you are a member. Checking rates takes time but is worth doing before you commit money for months or years.

When you compare rates, make sure you are looking at the same term length and deposit amount. Also check whether the bank requires a minimum deposit — some banks require $1,000 or $2,500 to open a CD, while others accept $500 or less. Read the fine print about early withdrawal penalties too, because a slightly higher rate with a steep penalty might not be the better deal.

How interest compounds on your CD

Most banks compound CD interest daily or monthly, meaning they calculate interest on your original deposit plus any interest already earned. Compounding makes your money grow faster than simple interest would. The more frequently interest compounds, the more you earn.

For example, a $10,000 CD at 5 percent annual interest compounded daily will earn slightly more than one compounded monthly, even at the same bank and rate. The difference is small on short terms but adds up over five years. Banks disclose their compounding method in the CD agreement, usually in a section labeled "How Interest Is Calculated" or similar.

You do not have to do anything to receive compounded interest — it happens automatically. The interest stays in the CD and grows along with your original deposit until maturity.

What happens when your CD reaches maturity

When your CD term ends, the bank sends you a notice — usually 10 to 30 days before maturity — telling you what will happen next. You typically have a grace period of seven to ten days to decide whether to withdraw the money or roll it into a new CD at the current rate.

If you do nothing during the grace period, many banks automatically roll your CD into a new one at the same term length but at whatever rate they are currently offering. This can work in your favor if rates have risen, but it locks your money away again. If rates have fallen, you might want to withdraw and move your money elsewhere.

Some banks charge a penalty if you withdraw during the grace period, while others do not. Check your CD agreement or call the bank before maturity to understand your options and avoid surprises.

CD rates versus other savings options

CDs usually pay more than regular savings accounts or money market accounts, but less than you might earn from stocks or bonds over the same period. A high-yield savings account might pay 4.5 percent with no lock-in period, while a one-year CD pays 5.0 percent but ties up your money. The choice depends on whether you need access to the money and how much extra interest is worth the restriction.

CDs are also insured by the Federal Deposit Insurance Corporation (FDIC) up to $250,000 per depositor per bank, meaning your money is protected even if the bank fails. That safety comes at the cost of lower returns compared to riskier investments.

Frequently Asked Questions

Can I withdraw money from a CD before it matures?

Yes, but most banks charge an early withdrawal penalty that reduces your earnings. The penalty amount depends on the bank and CD term — it might be three to six months of interest or a flat fee. Some banks offer no-penalty CDs that let you withdraw early without a fee, but they pay lower interest rates.

Do CD interest rates change after I open the account?

No. CD rates are locked in when you open the account and do not change, even if the bank raises or lowers rates later. That is why longer-term CDs sometimes pay less than you might expect — the bank is betting rates will fall, so they lock in a rate now.

What is the difference between a CD and a savings account?

A CD requires you to leave money untouched for a set period and pays a fixed interest rate. A savings account lets you withdraw money anytime but usually pays lower interest. CDs pay more because you give up flexibility; savings accounts pay less but offer access.

How much money do I need to open a CD?

Minimum deposits vary by bank. Some require $500, others $1,000 or $2,500. A few online banks accept deposits as low as $100. Check the bank's website or call to confirm the minimum before you open an account.

What happens if the bank fails while my money is in a CD?

The FDIC insures CDs up to $250,000 per depositor per bank. If the bank fails, you get your deposit back plus any earned interest, up to that limit. This protection applies to all FDIC-insured banks, including online banks.