United Kingdom vs Ireland: Tax Comparison
Compare income tax rates and take-home pay between United Kingdom and Ireland
You'd keep $3,753 more in United Kingdom
United Kingdom · London
27.9% tax
Ireland
31.6% tax
$313/mo difference
Side-by-side breakdown
United Kingdom · London
2025-26
Income
Taxes & Contributions
Ireland
2025
Income
Taxes & Contributions
Tax rate by income level
Understanding the difference
The Irish tax trap
Ireland's simpler two-bracket system looks cleaner on paper, but the combination of USC and PRSI creates a steeper climb for middle earners than the UK's straightforward National Insurance. You're paying social contributions on income the UK doesn't touch until much higher thresholds.
Where the UK pulls ahead
The UK's generous personal allowance (£12,570) means lower earners pay virtually nothing. Ireland's USC has an entry threshold too, but it kicks in faster and applies to more income bands, making the UK substantially lighter for anyone under £50,000.
Why people still choose Ireland
Ireland wins on simplicity: no tapering allowances, no regional variation, and a cap on total contributions for high earners that the UK lacks. The trade-off is paying more on the way up; the benefit is predictability and a flatter trajectory once you're established.
The real difference
UK tax feels progressive and rewarding (thresholds shift in your favour as you earn more). Ireland's system is more uniform but frontloaded with social charges that don't disappear at higher incomes the way National Insurance does in the UK above £50,270.
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