Most banks have no minimum balance requirement at all
You can open and maintain a savings account with zero dollars in it. Many banks—including major ones like Chase, Bank of America, and Wells Fargo—offer savings accounts with no minimum opening deposit and no minimum balance to keep the account open. The account stays active whether it holds $0.01 or $10,000.
What varies is whether the bank pays you interest. Some banks only pay interest if you maintain a certain balance; others pay interest on every dollar regardless of how little you have. A few banks charge a monthly fee if your balance drops below a threshold, though this is becoming less common.
The confusion usually comes from mixing up three separate things: the minimum to open an account, the minimum to earn interest, and the minimum to avoid fees. Each one is set independently by each bank.
Key Takeaways
- You can open a savings account and keep it open with no money in it at all—there is no legal requirement to maintain any balance.
- Interest rates and interest-earning minimums vary by bank; some banks pay interest on balances as small as $1, while others require $500 or $1,000 before interest kicks in.
- Monthly maintenance fees (if they exist at all) are triggered by falling below a specific balance, which the bank discloses when you open the account.
- Online banks typically have lower or no minimum balance requirements than brick-and-mortar banks, because their operating costs are lower.
- The balance requirement that matters most to you depends on whether you prioritize earning interest, avoiding fees, or straightforward having a place to park money.
Minimums to open an account versus minimums to keep it open
The opening deposit and the ongoing balance requirement are two different numbers. A bank might ask for $25 to open an account but have no minimum balance after that. Or it might let you open with $0 but require $500 to stay open without fees.
When you explore to open a savings account, the bank will tell you the opening deposit amount—usually $0, $25, or $100. This is what you need on day one. After that, the account is yours, and the balance can drop to zero unless the bank's terms say otherwise.
Read the account disclosure document (sometimes called the "account agreement" or "terms and conditions") before you open. It will state any minimum balance requirement and what happens if you fall below it. Most banks now waive these minimums entirely, but some regional banks and credit unions still enforce them.
When the bank stops paying interest on your balance
Interest-earning minimums are separate from account-keeping minimums. A bank might let you hold the account with $0 but only pay interest if you maintain $500 or more. Once your balance drops below that threshold, the interest rate drops to zero—even though the account stays open.
This matters if you are saving toward a goal and want to earn interest along the way. If the bank requires $500 to earn interest and you have $400, you earn nothing that month. The interest rate applies only to the portion of your balance that meets the minimum.
Online banks often have lower interest-earning minimums ($1 or $25) because they have fewer physical branches and lower overhead. Traditional banks with branch networks sometimes require $500 to $2,500 to earn interest, though this is shifting as competition increases.
Monthly fees and what triggers them
Some savings accounts charge a monthly maintenance fee ($5 to $10 is typical) if your balance falls below a set amount. This fee is separate from the interest rate—it is money the bank takes out, not money you fail to earn.
The threshold varies. A bank might charge a fee if you drop below $300, while another charges only if you go below $5,000. The fee is disclosed in the account agreement, and the bank is required to tell you before you open the account.
Many banks now waive these fees entirely, especially for online accounts. If a fee applies and you fall below the minimum, the bank will deduct it from your balance on a set day each month—usually the last day of the month or the first day of the next month.
How savings account minimums compare across bank types
| Bank Type | Typical Opening Deposit | Typical Balance Minimum | Typical Interest-Earning Minimum |
|---|---|---|---|
| Online banks | $0 | $0 | $1–$25 |
| Large national banks | $0–$25 | $0 | $500–$2,500 |
| Regional banks | $25–$100 | $300–$1,000 | $500–$5,000 |
| Credit unions | $0–$25 | $0–$500 | $500–$2,500 |
These are ranges, not rules. Your specific bank may differ. The only way to know what applies to you is to check the account agreement or call the bank directly.
What happens if your balance drops below the minimum
If the account has a balance minimum and you fall below it, one of three things usually happens: the bank charges a monthly fee, the interest rate drops to zero, or both.
The bank does not close the account or freeze your money. You can still deposit and withdraw. The penalty is financial—either a fee comes out, or you stop earning interest—not a restriction on access.
If fees pile up and your balance goes negative, the bank may eventually close the account and send you the remaining balance (if any) by check. This is rare and usually happens only after months of negative balance and repeated warnings.
Why the minimum matters less than you think
If you are opening a savings account to build an emergency fund or save for something specific, the minimum balance requirement is usually not the deciding factor. Most people choose a bank based on the interest rate, the ease of moving money in and out, and whether they can access it online.
The minimum becomes relevant only if you are trying to keep a very small balance ($50 to $200) and want to avoid fees or earn interest. In that case, an online bank with no minimum and interest paid on any balance is the better choice.
If you are saving larger amounts, the minimum is irrelevant—you will exceed it anyway. Focus instead on the interest rate, which is what determines how much your money actually grows.
Frequently Asked Questions
Can I open a savings account with $0?
Yes. Most banks allow you to open a savings account with no opening deposit. You can then deposit money whenever you want. The account stays open and active even if the balance is zero, as long as there is no monthly fee triggered by a low balance.
What is the difference between a minimum balance and an interest-earning minimum?
A minimum balance is the lowest amount you can hold without triggering a fee or account closure. An interest-earning minimum is the lowest amount needed to receive interest payments. You can have a $0 minimum balance but still need $500 to earn interest—meaning the account stays open but earns nothing until you reach $500.
Do online banks have lower minimums than traditional banks?
Usually yes. Online banks have lower operating costs and typically charge no opening deposit, no balance minimum, and no monthly fees. They often pay interest on balances as small as $1. Traditional banks with physical branches sometimes require $500 to $2,500 to earn interest, though this varies widely.
What happens if my balance drops below the minimum?
If a monthly fee applies, the bank deducts it from your account. If an interest-earning minimum applies, you stop earning interest until the balance rises again. The account itself stays open. The bank does not freeze your money or prevent you from making deposits and withdrawals.
Should I choose a bank based on the minimum balance requirement?
Only if you plan to keep a very small balance ($50 to $200) long-term. Otherwise, focus on the interest rate, which determines how much your savings actually grow. If you are saving larger amounts, you will exceed any minimum anyway, so the rate matters far more than the requirement.