Marshall Islands vs South Korea
Corporate Tax Comparison
Time of Update: Marshall Islands: 4/06/2026 / South Korea: 4/04/2026
Compare Marshall Islands and South Korea corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Marshall Islands vs South Korea Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Marshall Islands
South Korea
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/
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
CIT Return Due Date:
N/A for non resident companies
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 Payment 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 Estimated Payment Due Date:
N/A for non resident companies
CIT Estimated Payment Due Date:
N/A
Withholding Tax (WHT)
Marshall Islands
South Korea
Resident Withholding Tax (Dividend/Interest/Royalty):
0%
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0%
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Marshall Islands
South Korea
General Capital Gain Tax Rate:
0%
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
Effective Tax Rate (ETR)
Marshall Islands
South Korea
Composite Effective Average Tax Rate:
Composite Effective Average Tax Rate:
24.87%
Composite Effective Marginal Tax Rate:
Composite Effective Marginal Tax Rate:
22.0%
