South Korea vs Bulgaria
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Bulgaria: 4/01/2026
Compare South Korea and Bulgaria corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Bulgaria Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Bulgaria
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
10
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:
March 1st to June 30th of the following year
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
June 30th of the following year
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
Monthly or quarterly installment payments.
Withholding Tax (WHT)
South Korea
Bulgaria
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
0 / 10 / 10
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
5/10/10
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Bulgaria
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 generally subject to tax at the standard corporate income tax rate (10%); however, capital gains from listed securities traded on regulated markets in the EU/EEA and on equivalent qualifying markets are generally exempt.
Effective Tax Rate (ETR)
South Korea
Bulgaria
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
9.2%
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
10%
