United Kingdom vs Iceland
Corporate Tax Comparison
Time of Update: United Kingdom: 4/02/2026 / Iceland: 4/04/2026
Compare United Kingdom and Iceland corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
United Kingdom vs Iceland Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
United Kingdom
Iceland
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.
General CIT Rate:
20 (for LLCs and limited partnerships); 37.6 (for other entities)
CIT Return Due Date:
Tax returns need to be submitted within one year after the end of the accounting period.
CIT Return Due Date:
31 May
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 Payment Due Date:
November 1st and December 1st
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.
CIT Estimated Payment Due Date:
Except for January and October, prepayments should be made on the first day of each month.
Withholding Tax (WHT)
United Kingdom
Iceland
Resident Withholding Tax (Dividend/Interest/Royalty):
0/20/20
Resident Withholding Tax (Dividend/Interest/Royalty):
22/22/0
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0/20/20
None-Resident Withholding Tax (Dividend/Interest/Royalty):
21/13/22
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
United Kingdom
Iceland
General Capital Gain Tax Rate:
Capital gains are subject to the regular corporate tax rate.
General Capital Gain Tax Rate:
20 (for corporations, same as CIT rate for LLCs); 22 (for individuals)
Effective Tax Rate (ETR)
United Kingdom
Iceland
Composite Effective Average Tax Rate:
22.55
Composite Effective Average Tax Rate:
18.79%
Composite Effective Marginal Tax Rate:
11.51
Composite Effective Marginal Tax Rate:
14.93%
