Savings Calculator
Calculate the maturity value of installment savings from monthly deposit, term, and annual rate. Supports simple and monthly compound interest with Korean tax options. Everything runs in your browser.
Enter deposit, term, and rate
FAQ
How is installment savings interest calculated?
Deposits are assumed at the start of each month. Simple interest uses monthly deposit × (rate÷12) × n(n+1)÷2; monthly compounding reinvests interest every month.
What is the 15.4% interest income tax?
It combines Korea's 14% interest income tax and 1.4% local income tax for standard accounts. Choose the reduced (9.5%) or tax-free option if your product qualifies.
Can the result differ from my bank's payout?
Yes. Actual payouts vary with deposit dates, day-count conventions, and bonus rates, so treat this as a reference figure.
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