Mexico vs South Korea
Corporate Tax Comparison
Time of Update: Mexico: 4/05/2026 / South Korea: 4/04/2026
Compare Mexico and South Korea corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Mexico vs South Korea Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Mexico
South Korea
General CIT Rate:
30
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:
31 March
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:
31 March
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Estimated Payment Due Date:
The estimated payment by CIT will be due on the 17th of each month.
CIT Estimated Payment Due Date:
N/A
Withholding Tax (WHT)
Mexico
South Korea
Resident Withholding Tax (Dividend/Interest/Royalty):
10/0.9/0
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
10/4.9-35/5-35
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Mexico
South Korea
General Capital Gain Tax Rate:
Mexican residents are taxed at 30% of their income. Non-residents are taxed at 25% of their total income or 35% of their net income.
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
Effective Tax Rate (ETR)
Mexico
South Korea
Composite Effective Average Tax Rate:
27.63%
Composite Effective Average Tax Rate:
24.87%
Composite Effective Marginal Tax Rate:
20.29%
Composite Effective Marginal Tax Rate:
22.0%
