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What does the Bank account fee comparison calculate?
Which account costs less after fees, waivers, and interest? This calculator uses average balance, account a monthly fee, account a apy, account a annual overdraft fees, account b monthly fee, account b apy, and account b annual overdraft fees to estimate annual net account cost immediately in your browser.
With the values currently entered, the result is Account B — lower net annual cost. It also shows account a net cost, account b net cost, and difference.
How to use the Bank account fee comparison
- Replace the example values with your own numbers.
- Review the result and supporting figures as they update automatically.
- Check the formula and assumptions before using the estimate for a decision.
Inputs used
- Average balance
- Account A monthly fee
- Account A APY — entered in %
- Account A annual overdraft fees
- Account B monthly fee
- Account B APY — entered in %
- Account B annual overdraft fees
Bank account fee comparison formula
Annual account and overdraft fees − balance × APY for each account
Assumptions
- Average balance stays constant.
- Bonuses, waivers, and taxes on interest are excluded.
Verify the inputs
Authoritative sources
These sources explain the definitions, factors, or rules behind this tool. Their geographic scope is shown because an official source for one country is not automatically valid somewhere else.
Sources do not endorse Calculum. Check the source date, scope, and your own documents before making a financial, tax, insurance, or reporting decision.
Practical guide
Bank account fee comparison example and edge cases
Which account costs less after fees, waivers, and interest? Let's use a concrete example, then look at the assumptions that can move the answer.
Example: A practical bank account fee comparison scenario
For this example, use average balance of 5,000, account a monthly fee of 12, account a apy of 0.5 %, account a annual overdraft fees of 0, account b monthly fee of 0, account b apy of 3.5 %, and account b annual overdraft fees of 0. These are starting values, so replace them with numbers that match your situation.
- Average balance
- 5,000
- Account A monthly fee
- 12
- Account A APY
- 0.5 %
- Account A annual overdraft fees
- 0
- Account B monthly fee
- 0
- Account B APY
- 3.5 %
- Account B annual overdraft fees
- 0
Calculated resultAccount Blower net annual cost
Start with lower net annual cost. Then check account a net cost, account b net cost, and difference to understand what sits behind the main result.
Example results use the default display profile. The calculator above follows your selected country and units.
How to read the result
- Read the main result first. The supporting figures for account a net cost, account b net cost, and difference explain how the estimate is built.
- The method is Annual account and overdraft fees − balance × APY for each account. Keep the units consistent and use values from the same time period.
Edge cases worth checking
When average balance is unusual
Average balance stays constant. Double-check this input before relying on the result.
When account b annual overdraft fees is uncertain
Bonuses, waivers, and taxes on interest are excluded. Run a lower and higher value to see a useful range.
What changes the result most
Average balance
Use a current amount for average balance. Include fees or recurring costs that belong in the same figure.
Account A monthly fee
Use a current amount for account a monthly fee. Include fees or recurring costs that belong in the same figure.
Account A APY
Test a lower and higher account a apy. A small percentage change can move the final result more than expected.
Try a different scenario
Small changes show whether the answer is stable or sensitive.
Average balance: 10% lower
4,500Account Blower net annual cost
Average balance: 10% higher
5,500Account Blower net annual cost
Account A monthly fee: 10% higher
13Account Blower net annual cost
Common mistakes
Check average balance
Average balance stays constant. Make sure this matches the number you enter.
Keep account b annual overdraft fees consistent
Bonuses, waivers, and taxes on interest are excluded. Use the same units and time period throughout the calculation.
Do not rely on one bank account fee comparison scenario
Run a cautious case and an optimistic case. The range is often more useful than one exact-looking number.
Use this result well
Which account costs less after fees, waivers, and interest?
A lender’s APR, fees, eligibility rules, and contract control the real offer.