Ireland vs Iceland
Corporate Tax Comparison
Time of Update: Ireland: 4/04/2026 / Iceland: 4/04/2026
Compare Ireland and Iceland corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Ireland vs Iceland Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Ireland
Iceland
General CIT Rate:
Trade company: 12.5%. Non-trade company: 25% (e.g. royalties received by passive holding companies).
General CIT Rate:
20 (for LLCs and limited partnerships); 37.6 (for other entities)
CIT Return Due Date:
Nine months after the end of the tax accounting period.
CIT Return Due Date:
31 May
CIT Payment Due Date:
Nine months after the end of the tax accounting period.
CIT Payment Due Date:
November 1st and December 1st
CIT Estimated Payment Due Date:
Small companies: The first installment should be due 31 days before the end of the tax accounting period, and the final installment should be due at the time of submitting the tax return; Large companies: The first installment should be due six months after the start of the tax accounting period, the second installment should be due 31 days before the end of the tax accounting period, and the final installment should be due at the time of submitting the CIT return for that period. * Not later than the 23rd of the month.
CIT Estimated Payment Due Date:
Except for January and October, prepayments should be made on the first day of each month.
Withholding Tax (WHT)
Ireland
Iceland
Resident Withholding Tax (Dividend/Interest/Royalty):
25/20/20
Resident Withholding Tax (Dividend/Interest/Royalty):
22/22/0
None-Resident Withholding Tax (Dividend/Interest/Royalty):
25/20/20
None-Resident Withholding Tax (Dividend/Interest/Royalty):
21/13/22
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Ireland
Iceland
General Capital Gain Tax Rate:
33%
General Capital Gain Tax Rate:
20 (for corporations, same as CIT rate for LLCs); 22 (for individuals)
Effective Tax Rate (ETR)
Ireland
Iceland
Composite Effective Average Tax Rate:
12.36
Composite Effective Average Tax Rate:
18.79%
Composite Effective Marginal Tax Rate:
13.21
Composite Effective Marginal Tax Rate:
14.93%
