Ireland vs United Kingdom: Tax Comparison

Compare income tax rates and take-home pay between Ireland and United Kingdom

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

28%

Income

Gross Salary$100,000
Personal Allowance-$16,845
Taxable Income$83,155

Taxes & Contributions

Basic Rate-$10,105
Higher Rate-$13,053
National Insurance (Class 1 Employee)-$4,694
Total Taxes-$27,852
NET ANNUAL PAY$72,148
Per Month$6,012
Effective Rate27.9%

Ireland

2025

32%

Income

Gross Salary$100,000
Tax Credit-$4,683
Taxable Income$100,000

Taxes & Contributions

Standard Rate-$10,302
Higher Rate-$19,396
Universal Social Charge (USC)-$3,369
Pay-Related Social Insurance (PRSI) - Class A1-$3,221
Total Taxes-$31,605
NET ANNUAL PAY$68,395
Per Month$5,700
Effective Rate31.6%

Tax rate by income level

Ireland
United Kingdom

Understanding the difference

The Irish Advantage: Lower Earner Relief

Ireland's USC entry threshold and PRSI exemption for lower earners mean working people pay virtually nothing on the first €13k-€18k of income. The UK's National Insurance threshold is similar, but Ireland's layered social contributions feel less punitive overall; you're not stacking multiple taxes on the same pound.

Where Britain Fights Back

The UK's personal allowance (£12,570) is genuinely generous, and the income tax brackets don't kick into higher rates until £37,700. Ireland's standard rate extends to €44k, making mid-career earners in the UK shoulder less of the load relative to their salary progression.

What You're Actually Funding

Both countries offer universal healthcare and social safety nets, but Ireland's USC explicitly bankrolls health and welfare; the UK's National Insurance is theoretically ring-fenced for pensions and benefits. In practice, both systems are under strain, so you're not getting dramatically different value per euro or pound paid.

The Real Question: Where Are You in Your Career?

Under €30k-€35k, Ireland edges ahead with its lower entry thresholds. Above €44k-€50k, the UK becomes more attractive; its higher rate bracket is wider and kicks in later. Neither country has surprise exit taxes or worldwide income rules that flip the table unexpectedly.

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