South Korea vs Chinese Mainland
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Chinese Mainland: 4/04/2026
Compare South Korea and Chinese Mainland corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Chinese Mainland Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Chinese Mainland
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
25%
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:
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 Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
Within five months after the end of the tax year.
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
Quarterly or monthly installment payments should be made within 15 days after the end of each month/quarter.
Withholding Tax (WHT)
South Korea
Chinese Mainland
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
N/A
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
10/10/10
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Chinese Mainland
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:
Capital gains are subject to the normal corporate income tax rate.
Effective Tax Rate (ETR)
South Korea
Chinese Mainland
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
23.00
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
15.59
