South Korea vs Marshall Islands
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Marshall Islands: 4/06/2026
Compare South Korea and Marshall Islands corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Marshall Islands Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Marshall Islands
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
Within 10,000 US dollars, a corporate income tax of 80 US dollars is collected. Any excess amount is subject to a 3% tax. However, Non-resident companies not conducting business within the Marshall Islands are exempt from corporate income tax. This makes the jurisdiction attractive for offshore business activities as they do not have to pay taxes on income earned outside the Marshall Islands. https://internationalwealth.info/en/offshore-taxes/everything-you-need-to-know-about-the-tax-system-in-the-marshall-islands/
CIT Return Due Date:
Mid-term tax returns: within two months from the end of the six-month period; annual tax returns: within three months from the end of the fiscal year.
CIT Return Due Date:
N/A for non resident companies
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
N/A for non resident companies
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
N/A for non resident companies
Withholding Tax (WHT)
South Korea
Marshall Islands
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
0%
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0%
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Marshall Islands
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
General Capital Gain Tax Rate:
0%
Effective Tax Rate (ETR)
South Korea
Marshall Islands
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
