South Korea vs Norway
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / Norway: 4/05/2026
Compare South Korea and Norway corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs Norway Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
Norway
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
22 (25% of some companies in the financial sector).
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:
At the end of May of the next fiscal year (according to the oil tax system, the end of April). Other requirements may apply to specific business sectors, such as hydroelectric power.
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
Tax arrears must be paid within three weeks after the assessment is announced.
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
February 15 and April 15.
Withholding Tax (WHT)
South Korea
Norway
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
Norway
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
Norway
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
21.41%
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
23.11%
