Term Deposit Calculator
Calculate net maturity amount and interest for fixed deposits and installment savings.
Term Deposit Calculator
A tool that applies the deposit principal, rate, term, interest method, and tax rate to calculate gross interest, tax, and net maturity value.
How to use
Enter the deposit principal, term, and annual interest rate. Choose simple or compound interest, a compounding frequency, and a tax rate, then select ‘Calculate Deposit Maturity Amount’ to view principal, gross interest, tax, and net maturity value.
What is a term deposit?
A term deposit places one amount for an agreed period in exchange for interest. Unlike installment savings, where money is added over time, the entire deposited principal begins earning interest at the start.
Calculation basis and formula
Simple interest applies a time-proportional rate only to principal. Compound interest adds earnings to principal at the selected monthly or annual frequency before calculating the next period. The selected or custom tax rate is applied only to calculated interest.
Gross interest and net maturity value
Gross interest is the amount before tax. Net maturity value is principal plus interest after the entered tax. Results can differ with the same annual rate when the term, compounding frequency, or tax rate changes.
What the calculation excludes
Institution-specific day-count rules, promotional or variable rates, early-withdrawal rates, fees, local tax law, and deposit-protection conditions are not included. Check the actual product terms before making a decision.
Ways to use the result
Use the result to compare projected maturity values across different terms and rates or inspect the effect of simple interest, compound interest, and tax settings. To compare term deposit and installment savings returns, align the total contributed principal, duration, rate, and tax assumptions, then review the interest difference between a lump-sum deposit and recurring contributions. Review the provider's product disclosure and payout terms before opening an account.