Ukraine vs South Korea
Corporate Tax Comparison
Time of Update: Ukraine: 4/06/2026 / South Korea: 4/04/2026
Compare Ukraine and South Korea corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Ukraine vs South Korea Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Ukraine
South Korea
General CIT Rate:
18%
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:
The quarterly tax return should be due within 40 calendar days after the last day of the reporting quarter, but the deadline for submitting the fourth quarter CIT return (based on the quarterly reporting period) is 60 calendar days after the end of the reporting year. The annual tax return (based on the annual reporting period) should be due within 60 calendar days after the last day of the reporting year.
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:
According to the assessment based on the tax return, the payable taxes should be paid within ten calendar days after the deadline for submitting the relevant tax return.
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
CIT Estimated Payment Due Date:
N/A
Withholding Tax (WHT)
Ukraine
South Korea
Resident Withholding Tax (Dividend/Interest/Royalty):
N/A
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
15/15/15
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Ukraine
South Korea
General Capital Gain Tax Rate:
Capital gains are subject to the standard corporate income tax rate of 18%.
General Capital Gain Tax Rate:
25 (the same as the normal CIT rate for corporations over 300B KRW taxable income)
Effective Tax Rate (ETR)
Ukraine
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%
