Romania vs South Korea
Corporate Tax Comparison
Time of Update: Romania: 4/04/2026 / South Korea: 4/04/2026
Compare Romania and South Korea corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Romania vs South Korea Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Romania
South Korea
General CIT Rate:
16
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:
If the accounting year is equal to the calendar year, the annual CIT declaration form should be due by March 25 of the following year; for cases where the accounting year is different from the calendar year, the annual CIT declaration form should be due on the 25th day of the third month after the end of the company's accounting year. Quarterly CIT declaration forms should be submitted by the 25th day of the next month for the first, second, and third quarters. For the period from 2021 to 2025, the deadline for submitting the annual CIT declaration form is June 25 of the following year, or the 25th day of the sixth month after the revised fiscal year end.
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:
The final payment of CIT is usually due on the 25th of the third month after the end of the company's fiscal year. During the period from 2021 to 2025, the final CIT should be due by June 25 of the following year or by the 25th of the sixth month after the revised fiscal year end.
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 installments should be paid by the 25th of the first month after the first, second, and third quarters.
CIT Estimated Payment Due Date:
N/A
Withholding Tax (WHT)
Romania
South Korea
Resident Withholding Tax (Dividend/Interest/Royalty):
8/NA/NA
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
8/16/16
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Romania
South Korea
General Capital Gain Tax Rate:
Capital gains are constrained by 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)
Romania
South Korea
Composite Effective Average Tax Rate:
14.41%
Composite Effective Average Tax Rate:
24.87%
Composite Effective Marginal Tax Rate:
6.41%
Composite Effective Marginal Tax Rate:
22.0%
