🐷 Savings & Deposit Interest Calculator
See the interest and after-tax amount you will receive at maturity. Compare simple vs monthly compound interest and Korean tax options.
KRW
₩1M%
mo
Amount at maturity (after tax)
₩12,192,465
Total principal₩12,000,000
Interest before tax₩227,500
Interest tax (15.4%)-₩35,035
Interest after tax₩192,465
With installment savings at 3.5%, each monthly deposit earns interest only for its remaining months, so the effective return is about half that of a time deposit at the same rate.
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Interest income tax in Korea
- Standard 15.4%: income tax 14% + local income tax 1.4%
- Preferential 9.5%: e.g. credit unions, Saemaul Geumgo (incl. special rural tax)
- Tax-free 0%: e.g. tax-free savings for eligible people, some ISA accounts