The minimum balance requirement depends on your bank and account type, not on a fixed rule

There is no universal minimum. Some banks require you to keep $0 in a savings account at all times. Others require $25, $100, $500, or $2,500. A few require $10,000 or more. The amount your bank sets is called the minimum balance requirement, and it varies by institution and by the specific account you open.

What matters is knowing your own bank's requirement before you open the account. If you fall below it, your bank will typically charge you a monthly fee—usually $5 to $15—until you bring the balance back up. Some banks will close the account if you stay below the minimum for too long.

The requirement is printed in your account agreement or on your bank's website under the account details. If you cannot find it, call the bank and ask directly: "What is the minimum balance I need to keep in this savings account to avoid fees?"

Key Takeaways

  • Minimum balance requirements range from $0 to $10,000 or more, depending on which bank and which account type you choose.
  • Falling below the minimum usually costs you a monthly maintenance fee of $5 to $15, not a penalty on the money itself.
  • Online banks and credit unions often have lower or no minimum balance requirements than traditional brick-and-mortar banks.
  • Your account agreement or the bank's website will state the exact minimum for your account; if you cannot find it, contact the bank directly.

Why banks set minimum balance requirements

A minimum balance requirement is how a bank protects itself against the cost of maintaining a small account. Processing transactions, sending statements, and customer service all cost the bank money. If your account balance is very low, the bank makes almost nothing from interest or fees, so it charges you a maintenance fee instead.

Banks that offer no minimum balance—often online banks and some credit unions—do this because their operating costs are lower. They have fewer physical branches, fewer employees, and lower overhead. They can afford to take small accounts without charging a fee.

The minimum is not a deposit you have to make once and forget. It is an amount you must keep in the account at all times. If you have $500 minimum and your balance drops to $499, you will be charged the fee that month.

How minimum balance requirements are calculated

Banks measure your balance in different ways, and the method matters. Some banks look at your balance on a single day each month—usually the last day of the statement period. Others average your balance across the entire month. A few check your balance every single day and charge a fee if you dip below the minimum even once.

The most common method is the daily balance requirement: your balance must stay at or above the minimum every single day. If you have $500 minimum and you withdraw $10 on the 15th, bringing your balance to $490, you will be charged a fee even if you deposit $20 back in on the 16th.

Some accounts use a monthly average balance instead. This means the bank adds up your balance on each day of the month and divides by the number of days. You can dip below the minimum on some days as long as your average stays above it. This is less strict, but less common.

Always ask your bank which method they use. The difference between daily and average can mean the difference between paying a fee and not paying one.

Minimum balance requirements by bank type

Traditional banks (Chase, Bank of America, Wells Fargo, Citibank) typically require $300 to $2,500 in a basic savings account. Premium accounts aimed at wealthier customers may require $10,000 or more. Some branches may have different requirements, so check with your specific location.

Online banks (Ally, Marcus, Discover, Capital One 360) usually have no minimum balance requirement or a very low one ($0 to $25). Because they have no physical branches, their costs are lower and they can afford to take smaller accounts.

Credit unions vary widely. Some have no minimum. Others require $25 to $500. The requirement often depends on the size and type of credit union. If you are a member, ask your credit union directly.

High-yield savings accounts (offered by online banks and some traditional banks) often have no minimum balance requirement, even though they pay higher interest rates than regular savings accounts. This is one reason they are popular with people who are building savings from a small starting point.

What happens if you fall below the minimum

The first consequence is a monthly maintenance fee. This fee is charged automatically on a set day each month—usually the last day of your statement period. The fee ranges from $5 to $15 depending on the bank. It is deducted directly from your account, which makes your balance even lower.

If you stay below the minimum for several months in a row, the bank may close your account without warning. When this happens, any remaining balance is sent to you by check or transferred to another account you specify. You will not lose the money, but you will lose the account.

Some banks offer a grace period—usually 30 days—before they charge the first fee. If you bring your balance back above the minimum within that window, no fee is charged. Not all banks offer this, so do not count on it.

The fee itself does not damage your credit score. It is not reported to credit bureaus. However, if the bank closes your account due to non-payment or fraud, that information may be reported to ChexSystems, a banking history database that other banks check when you try to open a new account.

How to avoid minimum balance fees

The simplest approach is to choose an account with no minimum balance requirement. Online banks make this straightforward: you can open an account with $1 and never worry about falling below a threshold. If you prefer a traditional bank, ask whether they offer a no-minimum savings account. Many do, even if their standard account has a requirement.

If you already have an account with a minimum balance requirement, you have three options. First, keep your balance above the minimum. This is straightforward if you have the money, but not always possible if you are living paycheck to paycheck. Second, ask your bank if they will waive the fee if you set up a direct deposit or link a checking account. Some banks do this automatically. Third, switch to a different bank that has no minimum.

If you are building savings and expect your balance to stay low for a while, opening an account at an online bank is usually the best choice. You will earn interest on whatever you save, and you will not be charged for keeping a small balance.

Minimum balance versus interest rates

A low minimum balance requirement does not mean low interest rates. In fact, the opposite is often true. Online banks with no minimum balance requirement typically pay much higher interest rates than traditional banks with high minimum requirements.

For example, a traditional bank might require $2,500 minimum and pay 0.01% annual interest. An online bank with no minimum might pay 4% to 5% annual interest on the same amount. Over a year, the difference in interest earned is much larger than any maintenance fee you would pay at the traditional bank.

When comparing savings accounts, look at both the minimum balance requirement and the interest rate. A no-minimum account with a high interest rate is almost always better than a high-minimum account with a low interest rate, especially if you are starting with a small balance.

Frequently Asked Questions

Can I have a savings account with $0 in it?

Yes, if your bank has no minimum balance requirement. Many online banks and some credit unions allow this. However, if your account has a minimum requirement and you keep it at $0, you will be charged a monthly fee. Check your account agreement to see what your bank requires.

What is the difference between a minimum balance and a minimum deposit?

A minimum deposit is the amount you must put in when you first open the account. A minimum balance is the amount you must keep in the account at all times. Some accounts have both. For example, you might need to deposit $100 to open the account, then keep a $500 balance to avoid fees.

Do I lose money if I fall below the minimum balance?

You do not lose the money itself, but you are charged a fee. If you have $400 in an account with a $500 minimum, you will be charged a fee (usually $5 to $15) that month. The fee is deducted from your balance, making it even lower. You do not lose the original $400 unless the bank closes the account.

Can a bank change the minimum balance requirement?

Yes. Banks can change their requirements, but they must notify you in advance—usually 30 days. If your bank raises the minimum and you cannot meet the new requirement, you can close the account and move to a different bank. You are not locked in.

Does a minimum balance requirement affect my credit score?

No. Minimum balance fees are not reported to credit bureaus and do not affect your credit score. However, if your bank closes your account due to non-payment or fraud, that closure may be reported to ChexSystems, which other banks check when you explore for a new account.