Ireland vs Singapore
Corporate Tax Comparison
Time of Update: Ireland: 4/04/2026 / Singapore: 4/04/2026
Compare Ireland and Singapore corporate tax rates, filing due dates, withholding tax, VAT, capital gains tax, and effective tax metrics for cross-border company planning.
Ireland vs Singapore Corporate Tax Comparison
Basic Corporate Tax Comparison
Corporate Income Tax (CIT)
Ireland
Singapore
General CIT Rate:
Trade company: 12.5%. Non-trade company: 25% (e.g. royalties received by passive holding companies).
General CIT Rate:
17
CIT Return Due Date:
Nine months after the end of the tax accounting period.
CIT Return Due Date:
November 30
CIT Payment Due Date:
Nine months after the end of the tax accounting period.
CIT Payment Due Date:
Tax assessment notice shall be delivered within one month.
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:
The estimated income tax assessment must be submitted within three months after the end of the company's fiscal year. The estimated tax should be paid within one month after receiving the assessment notice, or paid in installments according to the installment payment plan.
Withholding Tax (WHT)
Ireland
Singapore
Resident Withholding Tax (Dividend/Interest/Royalty):
25/20/20
Resident Withholding Tax (Dividend/Interest/Royalty):
NA
None-Resident Withholding Tax (Dividend/Interest/Royalty):
25/20/20
None-Resident Withholding Tax (Dividend/Interest/Royalty):
0/15/10
Value-Added Tax (VAT)
Capital Gain Tax (CGT)
Ireland
Singapore
General Capital Gain Tax Rate:
33%
General Capital Gain Tax Rate:
N/A
Effective Tax Rate (ETR)
Ireland
Singapore
Composite Effective Average Tax Rate:
12.36
Composite Effective Average Tax Rate:
16.09%
Composite Effective Marginal Tax Rate:
13.21
Composite Effective Marginal Tax Rate:
13.15%
