South Korea vs Turkey
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Turkey: 4/04/2026
Compare South Korea and Turkey corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Turkey Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Turkey
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 (financial companies up to 30%)
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:
The 30th day of the fourth month after the end of the fiscal year.
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
The tax return form is due by the end of the month (i.e., for companies using the calendar year, it is before the end of April).
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
Quarterly prepayments of taxes should be paid by the 17th of the second month of each quarter.
Withholding Tax (WHT)
South Korea
Turkey
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
0/0/0
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
15/0/20
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Turkey
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 constrained by the normal corporate income tax rate.
Effective Tax Rate (ETR)
South Korea
Turkey
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
22.33%
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
9.56%
