Some bank accounts require you to keep a certain amount of money in them. If your balance drops below that level, you may be charged a minimum balance fee. These fees often catch people by surprise, especially when a single low day triggers a charge. This guide explains what a minimum balance fee is, how banks calculate it, typical costs and how to avoid it.
What is a minimum balance fee?
A minimum balance fee is a charge applied when your account balance falls below the amount your bank requires. It may be listed as:
- MINIMUM BALANCE FEE
- BELOW MIN BAL FEE
- LOW BALANCE FEE
- MONTHLY SERVICE FEE (when the fee is waived by keeping a minimum balance)
Many banks combine this with the monthly maintenance fee: you pay the fee unless you keep the minimum balance or meet another waiver. See what a monthly maintenance fee is.
How banks measure your balance
| Method | How it works | Example |
|---|---|---|
| Minimum daily balance | Your balance must never drop below the minimum on any day of the cycle | Requirement $1,500; one day at $1,400 triggers the fee |
| Average daily balance | Add each day’s ending balance, divide by days in the cycle | Average must be at least $1,500 |
| Average monthly balance | Similar to average daily, calculated over the month | Some days can be lower if others are higher |
| Combined balance | Total across linked checking, savings and investments | Combined $5,000 or more |
Minimum daily balance rules are stricter because even a brief dip triggers the fee.
Typical minimum balance requirements and fees
| Account type | Typical minimum | Typical fee if below |
|---|---|---|
| Basic checking | $300 to $1,500 | $5 to $15 |
| Interest checking | $2,500 to $15,000 | $15 to $35 |
| Savings | $100 to $500 | $3 to $10 |
| Money market | $1,000 to $10,000 | $10 to $25 |
| Online banks | Often $0 | Usually no fee |
How to avoid a minimum balance fee
- Know your rule. Check whether your bank uses minimum daily or average balance.
- Set a buffer. Keep extra money above the minimum to cover surprise charges.
- Turn on alerts. Set a low balance alert slightly above the requirement.
- Use other waivers. Direct deposit or debit card use may waive the fee.
- Link accounts. Combined balances may count.
- Switch to a no-minimum account.
Frequently asked questions
Does the fee apply if I am below the minimum for one day?
With a minimum daily balance rule, yes.
Can the bank refund a minimum balance fee?
Often, especially if you ask and have a good history.
Example: daily vs average balance
Imagine your account requires $1,500 and your balance looks like this over a 30-day cycle:
| Days | Balance |
|---|---|
| Days 1 to 10 | $2,000 |
| Days 11 to 12 | $1,200 (rent paid before payday) |
| Days 13 to 30 | $1,900 |
Minimum daily balance rule: You dropped below $1,500 for two days, so the fee applies.
Average daily balance rule: (10 x 2,000 + 2 x 1,200 + 18 x 1,900) / 30 = about $1,887. You meet the requirement, so no fee.
This example shows why knowing your bank’s method matters.
Which balance counts?
Banks generally use the ending ledger balance for each day, not your available balance during the day. A large purchase that posts overnight can lower that day’s ending balance. Pending transactions usually do not count until they post. Read what transaction posted means to understand posting timing.
Why banks require minimum balances
Banks earn money by lending and investing customer deposits. Higher balances make accounts more profitable, so banks reward customers who keep more money with waived fees, better rates and perks. Lower-balance accounts cost the bank more relative to the deposits they hold, so fees help cover those costs.
Minimum balance to open vs minimum balance to avoid fees
| Requirement | Meaning |
|---|---|
| Minimum opening deposit | Amount needed to open the account, such as $25 or $100 |
| Minimum balance to avoid fee | Amount you must keep to avoid monthly charges |
| Minimum balance to earn interest | Some accounts pay interest only above a threshold |
| Minimum balance for a higher rate | Tiered interest rates for larger balances |
Do not confuse these. An account may only need $25 to open but $1,500 to avoid fees.
Strategies for low or irregular income
If keeping a minimum balance is hard right now:
- Choose an online bank or credit union with no minimum
- Use a Bank On certified basic account
- Ask your bank to switch you to a lower-requirement account
- Use direct deposit waivers instead of balance waivers
- Keep savings in the same bank if combined balances count
There is no reason to pay a fee for not having money in the bank. Plenty of accounts are designed for everyday budgets. See how to save money on a low income for more ideas.
Real examples
The one-day dip. Brianna’s account required a $1,500 minimum daily balance. She paid rent a day before payday, dropped to $1,350 overnight, and was charged $12. She now times rent after payday and keeps a $200 buffer.
The combined balance. Raj moved his savings to the same bank as checking. His combined balance exceeded the $5,000 requirement, and the fee disappeared.
The switch. Monica moved to a credit union with free checking and no minimum balance, saving more than $100 a year.
How to ask for a refund
Banks often refund minimum balance fees, especially for customers with long histories or if the dip was brief. Try this:
Hi, I see a minimum balance fee on my statement. My balance dipped for just a day before my paycheck arrived. I have been a customer for several years. Could you refund this fee? I would also like to know about accounts that would better fit my balances.
Being polite and asking about alternatives shows you want to stay with the bank, which makes a refund more likely.
Minimum balance requirements in savings and money market accounts
Savings and money market accounts may also have minimums. Falling below can mean:
- A monthly fee
- Earning a lower interest rate, or no interest at all
- Losing a promotional rate
High-yield online savings accounts usually have no minimum and no fees, making them a simple choice for emergency funds.
Frequently asked questions
Do business accounts have minimum balance fees?
Yes, often higher ones. Business accounts may also charge transaction fees beyond a certain number of deposits or checks.
Will the bank close my account for a low balance?
Usually not, but if a balance stays at zero or negative for a long time, the bank may close it.
Is it better to pay the fee or keep the minimum?
If keeping the minimum ties up money you need, a fee-free account is usually better than paying the fee.
Tools that help you stay above the minimum
| Tool | How it helps |
|---|---|
| Low balance alerts | Warn you before you drop below the requirement |
| Automatic transfers from savings | Move money when checking gets low |
| Budgeting apps | Forecast upcoming bills and paydays |
| Bill due date changes | Line up big bills after payday |
| Separate bills account | Keep spending money separate from the minimum balance account |
Some people treat the minimum balance as money that does not exist. They set their personal spending floor at the minimum plus a buffer, and budget only with money above that floor. This mental trick prevents accidental dips.
Hidden costs of minimum balance rules
Even if you never pay the fee, keeping a large balance in a low-interest checking account has an opportunity cost. If you must keep $5,000 in checking earning almost nothing, that money could earn several percent a year in a high-yield savings account. Compare the value of waived fees and perks with the interest you could earn elsewhere.
| Balance kept in checking | Interest at 0.01% per year | Interest at 4% per year elsewhere |
|---|---|---|
| $1,500 | About $0.15 | About $60 |
| $5,000 | About $0.50 | About $200 |
Rates change over time, so check current offers.
Quick checklist
- Find your account’s minimum and calculation method
- Keep a buffer above the minimum
- Set low balance alerts
- Use direct deposit or linked accounts as waivers
- Ask for refunds when a fee surprises you
- Compare no-minimum accounts and high-yield savings
Minimum balance fees are one of the easiest bank fees to eliminate. Once you know how your bank measures your balance, you can either meet the rule with a small buffer or move to an account that does not have one at all, and keep that money working for you instead of the bank.
Minimum balances for joint accounts
On joint accounts, both owners’ spending counts toward the same balance. If one person makes a large purchase or transfer, the account can dip below the minimum without the other noticing. Agree on a shared buffer, turn on alerts for both owners and talk before large withdrawals to avoid surprise fees.
The bottom line
A minimum balance fee is charged when your balance drops below a required level. Learn your bank’s calculation method, keep a buffer, use alerts and consider fee-free accounts. Also read what a ledger balance is.