Most CDs require between $500 and $2,500 to open, though some banks accept $100 or less and others require $10,000 or more

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 minimum balance is the smallest amount of money the bank requires you to deposit when you open the account. This amount varies widely by bank and by the type of CD.

The minimum does not change during the CD's term. If you deposit $1,000 to meet a $1,000 minimum, you do not have to add more money. However, if you withdraw any amount before the term ends, you typically pay an early withdrawal penalty, and the CD closes.

Banks set minimums based on how they want to attract customers and manage risk. Online banks often have lower minimums than brick-and-mortar branches because their operating costs are smaller. Credit unions sometimes have lower minimums for members. Some banks offer no-minimum CDs but pay lower interest rates to offset the risk.

Key Takeaways

  • CD minimums typically range from $100 to $2,500, but some banks require $10,000 or more for higher-rate CDs.
  • Online banks usually have lower minimums than traditional banks because they have fewer physical locations and lower overhead costs.
  • The minimum balance you deposit stays in the account for the entire CD term; you cannot withdraw it without paying a penalty.
  • If you cannot meet a bank's minimum, you can shop other banks, credit unions, or consider a regular savings account instead.

How minimums differ between bank types

Online banks typically have minimums between $100 and $1,000. Because they do not operate physical branches, they can afford to accept smaller deposits. Examples include banks that advertise CD rates online, though you should check the specific bank's website for their current requirement.

Traditional banks with physical locations often require $500 to $2,500. Some large national banks have higher minimums—$5,000 to $10,000—especially for CDs with longer terms or higher interest rates. Community banks and regional banks vary widely; some match online minimums, others require more.

Credit unions may have lower minimums for members, sometimes as low as $100 or $250. However, you must be a member to open a CD, which itself may require a small deposit or membership fee. If you already have a checking or savings account at a credit union, opening a CD is usually straightforward.

What happens if you do not have the minimum

If a bank requires $1,000 and you have $500, you have several options. You can wait and save until you reach the minimum, then open the CD. You can open a regular savings account at the same bank instead—savings accounts typically have no minimum or a very low one—and move the money to a CD later when you have enough.

You can also shop other banks. If your current bank requires $2,500 but an online bank requires $500, switching is worth considering, especially if the interest rate is competitive. Use a CD rate comparison tool or visit bank websites directly to see current minimums and rates side by side.

A third option is to open a CD with a smaller amount at a bank with a low minimum, then add money to a separate CD later. Some people do this to ladder their CDs—opening multiple CDs with different term lengths so money becomes available at different times.

Minimums for special CD types

A bump-up CD or step-up CD lets you increase your interest rate once during the term if rates rise. These often have the same minimums as regular CDs, though some banks require slightly more—$1,000 to $5,000—because the bank is taking on more risk.

A no-penalty CD lets you withdraw your money early without a penalty. These usually have higher minimums than regular CDs, often $1,000 to $2,500, because the bank needs a larger cushion to absorb the cost of early withdrawals. The interest rate is also typically lower than a regular CD.

A jumbo CD is designed for large deposits, usually $100,000 or more. These offer higher interest rates because the bank is working with a larger sum. If you have significant savings, a jumbo CD may pay more than a regular CD, even after accounting for the higher minimum.

How the minimum affects your decision

The minimum is one factor among several when choosing a CD. A bank with a $500 minimum but a 4.5% interest rate may be better than a bank with a $100 minimum but a 3.5% rate, depending on how long you keep the money in the account. Use a CD calculator to compare the total interest you would earn at different rates.

Consider also the early withdrawal penalty. Some banks charge three months of interest; others charge six months or a flat fee. If you think you might need the money before the term ends, a no-penalty CD with a higher minimum might make sense, even though the rate is lower. If you are confident you will not touch the money, a regular CD with a lower rate and lower minimum is usually the better choice.

The term length also matters. A one-year CD with a $500 minimum might pay 4.0%, while a five-year CD with the same minimum pays 4.5%. The longer you commit, the more interest you earn, but you also give up access to the money for longer. Start with a shorter term if you are unsure.

Where to find current minimums and rates

Bank websites list their CD minimums and rates directly. Most banks show this information on their savings or CD product page. If you cannot find it, call the bank's customer service line or visit a branch—they can tell you the minimum for each CD term they offer.

CD rate comparison websites aggregate minimums and rates from many banks. These sites let you filter by minimum amount, term length, and interest rate. Keep in mind that rates and minimums change frequently, so always verify the information on the bank's own website before opening an account.

Your current bank may offer CDs with a lower minimum for existing customers. If you have a checking or savings account, ask whether they waive or reduce the CD minimum for account holders. Some banks do; others do not.

Frequently Asked Questions

Can I add money to a CD after I open it?

Most banks do not allow deposits to an existing CD. You must open a new CD if you want to invest additional money. Some banks offer add-on CDs or allow you to link multiple CDs, but this is less common. Check with your bank about their specific policy.

What if I withdraw money before the CD matures?

You pay an early withdrawal penalty, which is usually three to six months of interest. The penalty is deducted from your CD balance, so you may receive less than you deposited. The CD then closes. Some banks charge a flat fee instead of interest-based penalties.

Do I need to meet the minimum every month?

No. You deposit the minimum once when you open the CD. The balance must stay at or above the minimum until the CD matures, but you do not make additional deposits. If your balance falls below the minimum due to a penalty or fee, the CD may close.

Is a CD minimum the same as a CD term?

No. The minimum is the amount of money required to open the account. The term is how long you agree to keep the money in the account—three months, one year, five years, and so on. They are separate requirements.

Can I negotiate a lower minimum with my bank?

Rarely. Large banks have fixed minimums for all customers. Small banks and credit unions may be more flexible, especially if you have other accounts with them or if you are opening a large CD. It does not hurt to ask, but expect the answer to be no.