Chinese Mainland vs South Korea
Corporate Tax Comparison
Time of Update: Chinese Mainland: 4/04/2026 / South Korea: 4/04/2026
Compare Chinese Mainland and South Korea corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Chinese Mainland vs South Korea Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Chinese Mainland
South Korea
General CIT Rate:
25%
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:
For annual CIT declaration, it should be submitted within five months after the end of the tax year. For monthly or quarterly temporary CIT declaration, it should be submitted within 15 days after the end of each month/quarter.
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:
Within five months after the end of the tax year.
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Estimated Payment Due Date:
Quarterly or monthly installment payments should be made within 15 days after the end of each month/quarter.
CIT Estimated Payment Due Date:
N/A
Withholding Tax (WHT)
Chinese Mainland
South Korea
Resident Withholding Tax (Dividend/Interest/Royalty):
N/A
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
10/10/10
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Chinese Mainland
South Korea
General Capital Gain Tax Rate:
Capital gains are subject to the normal corporate income tax rate.
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
Effective Tax Rate (ETR)
Chinese Mainland
South Korea
Composite Effective Average Tax Rate:
23.00
Composite Effective Average Tax Rate:
24.87%
Composite Effective Marginal Tax Rate:
15.59
Composite Effective Marginal Tax Rate:
22.0%
