Savings & Deposit Interest Calculator

Accurately calculate interest on savings and deposits to help with financial planning. Choose between simple and compound interest methods, and automatically calculate after-tax amounts.
⚠️ This calculator applies South Korean tax law (as of 2025).
Product Type
Interest Calculation Method
Monthly Payment
KRW
Period
months
Annual Interest Rate
%
Principal 0KRW
Interest (Pre-tax) 0KRW
Interest Income Tax (15.4%) 0KRW
Interest (After-tax) 0KRW
Final Amount 0KRW
※ Based on 2025 interest income tax rate of 15.4% (income tax 14% + local tax 1.4%)
※ Tax-exempt products or tax-advantaged products require separate calculation.
※ Actual amounts may vary depending on financial institution terms.