Deposit interest calculator
Calculate the gross and net interest of a savings or fixed-term deposit and the amount you receive at maturity.
Gross interest—
Tax deducted—
Net interest—
Amount at maturity—
Net annual yield—
How deposit interest is calculated
For a fixed-term deposit, gross interest = amount × annual rate × days ÷ 365. Most countries then deduct a withholding tax from the interest, so what you actually earn is the net interest. The net annual yield shows the return if you keep rolling the deposit over at the same rate.
Tax rates differ by country and sometimes by term, so enter the rate that applies to your deposit. The table compares common terms at the same interest rate.
Frequently asked questions
How do I calculate interest on a deposit?
Multiply the amount by the annual rate and by the number of days, then divide by 365. Subtract the withholding tax to get the net interest.
Is a short or a long deposit term better?
Short terms let you reinvest sooner and follow rate changes; long terms lock in today's rate. Compare the terms in the table under the result.
Is deposit interest taxed?
In most countries yes, usually through a withholding tax deducted by the bank. Enter your country's rate to see the net amount.
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