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Financial Income Tax Calculator (Korea)

If your interest and dividends exceed KRW 20 million a year, how much more tax do you pay? Compare comprehensive vs. separate taxation instantly.

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💰 Financial Income

만원
만원

🧾 Other Income & Deductions

만원
만원
Total financial income30,000,000원

Comprehensive threshold (KRW 20M) · Over threshold — comparative taxation

Comprehensive taxation is worse — extra burden applies

📊 Tax Comparison

Separate (withholding) method
8,940,000원
Comprehensive (aggregate) method
9,040,000원

Estimated computed tax

9,040,000원

Comparative taxation = the larger of the two

Effective total incl. local income tax

9,944,000원

Marginal tax rate 24%

Extra burden under comprehensive taxation+100,000원

🏥 Health Insurance Dependent Impact

Combined income (NHIS)70,000,000원

🚨 Dependent loss risk — combined income over KRW 20M

Financial income is fully counted once it exceeds KRW 10M/year. Property, wage, and business income have separate requirements.

Rate & Threshold Sources (2026) · Verified 2026-06-20

  • ① 8-bracket income tax: National Tax Service (Income Tax Act §55)
  • ② KRW 20M threshold & comparative taxation: Income Tax Act §62
  • ③ Interest/dividend withholding 14% (15.4% incl. local): Income Tax Act §129
  • ④ Dividend gross-up 10%: Income Tax Act §17 (cut from 11% in 2024)
  • ⑤ NHIS dependent income limit KRW 20M: National Health Insurance Act

※ All figures are general reference estimates. Actual tax varies by deductions, special rules, and local income tax. Confirm with Hometax or a tax accountant.

Guide · FAQ · bal.pe.kr 도구 모음

계산 방법 상세는 Guide, 자주 묻는 질문은 FAQ, 데이터 출처·운영 정보는 About 참조. 마지막 업데이트 2026-06-20.