South Korea vs United Kingdom
Corporate Tax Comparison
Time of Update: South Korea: 4/04/2026 / United Kingdom: 4/02/2026
Compare South Korea and United Kingdom corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
South Korea vs United Kingdom Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
South Korea
United Kingdom
General CIT Rate:
Progressive: 10% (up to 200M KRW), 20% (200M-20B KRW), 22% (20B-300B KRW), 25% (over 300B KRW)
General CIT Rate:
1. Companies with profits exceeding £250,000 are subject to a main rate of 25% (effective from 1 April 2023).
2. Companies with profits not exceeding £50,000 are subject to a small profits rate of 19% (effective from 1 April 2023).
3. A tapered tax rate applies to profits falling between £50,000 and £250,000.
2. Companies with profits not exceeding £50,000 are subject to a small profits rate of 19% (effective from 1 April 2023).
3. A tapered tax rate applies to profits falling between £50,000 and £250,000.
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:
Tax returns need to be submitted within one year after the end of the accounting period.
CIT Payment Due Date:
The submission of the declaration form (instalment payments are allowed in the case of elections).
CIT Payment Due Date:
According to the scale of the payment company, there may be differences. For more information, please refer to the UK company summary.
CIT Estimated Payment Due Date:
N/A
CIT Estimated Payment Due Date:
According to the scale of the payment company, there may be differences. For more information, please refer to the UK company summary.
Withholding Tax (WHT)
South Korea
United Kingdom
Resident Withholding Tax (Dividend/Interest/Royalty):
Resident Withholding Tax (Dividend/Interest/Royalty):
0/20/20
None-Resident Withholding Tax (Dividend/Interest/Royalty):
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0/20/20
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
South Korea
United Kingdom
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 subject to the regular corporate tax rate.
Effective Tax Rate (ETR)
South Korea
United Kingdom
Composite Effective Average Tax Rate:
24.87%
Composite Effective Average Tax Rate:
22.55
Composite Effective Marginal Tax Rate:
22.0%
Composite Effective Marginal Tax Rate:
11.51
