Rates last updated: 23 September 2026 · How we verify
Ireland vs UK Tax in 2026: Which One Actually Costs You More?
Ireland has a reputation as a high-tax country for individuals and a low-tax one for companies. The UK has roughly the opposite reputation. Both are half true, and neither survives contact with the arithmetic.
Here's what the numbers actually show for a single employee, using verified 2026 rates on both sides:
| Gross salary | Ireland — you keep | UK — you keep |
|---|---|---|
| 30,000 | 87.7% | 83.7% |
| 60,000 | 74.9% | 75.6% |
| 100,000 | 64.5% | 68.6% |
Ireland is cheaper at the lower end, level in the middle, and more expensive at the top. The crossover sits just below 60,000. Which country costs you more depends almost entirely on what you earn.
This guide works through both sides — employees first, then companies — with every calculation shown.
A note on currency. We have not converted between euro and sterling. Exchange rates move, and a comparison that depends on today's rate is out of date next month. Every figure below is calculated in its own currency and compared on effective rate — what proportion of your gross you actually keep. That number stays meaningful.
For employees: the same salary, both systems
A single employee with no dependants, on 60,000 gross.
Ireland, 2026
| Calculation | Amount | |
|---|---|---|
| Income tax at 20% | €44,000 × 20% | €8,800.00 |
| Income tax at 40% | €16,000 × 40% | €6,400.00 |
| Less tax credits | €2,000 personal + €2,000 employee | −€4,000.00 |
| Income tax | €11,200.00 | |
| USC | 0.5% / 2% / 3% across the bands | €1,332.82 |
| PRSI | 4.2% to September, 4.35% from October | €2,542.50 |
| Total deductions | €15,075.32 | |
| Net pay | €44,924.68 |
United Kingdom, 2026/27
| Calculation | Amount | |
|---|---|---|
| Personal Allowance | first £12,570 | £0.00 |
| Income tax at 20% | £37,700 × 20% | £7,540.00 |
| Income tax at 40% | £9,730 × 40% | £3,892.00 |
| Income tax | £11,432.00 | |
| National Insurance at 8% | £37,700 × 8% | £3,016.00 |
| National Insurance at 2% | £9,730 × 2% | £194.60 |
| Total deductions | £14,642.60 | |
| Net pay | £45,357.40 |
Effective rate: 25.1% in Ireland, 24.4% in the UK. Less than a percentage point apart — at the salary level where most people assume Ireland is dramatically worse.
Why the gap opens at both ends
The two systems are built differently, and the difference only shows at the extremes.
Ireland gives credits. The UK gives an allowance. Ireland taxes from the first euro and then subtracts €4,000 from the bill. The UK exempts the first £12,570 entirely and then taxes what's left. A credit is worth the same to everyone; an allowance is worth more to a higher-rate taxpayer. At low incomes, Ireland's €4,000 credit can wipe out most of the bill — which is why Ireland is meaningfully cheaper at 30,000.
The UK's higher-rate threshold is higher. £50,270 against €44,000 — and the UK's is frozen until April 2031 rather than rising. In nominal local-currency terms, more of a UK salary stays at 20%.
Ireland's social charges bite harder at the top. UK National Insurance drops to 2% above £50,270. Irish PRSI stays at its full rate all the way up, and USC jumps to 8% above €70,044. So where the UK's marginal cost falls as you earn more, Ireland's rises. That single difference explains almost the entire gap at 100,000.
The practical consequence: Ireland is a better deal for lower and middle earners than its reputation suggests, and a worse one for high earners than the headline 40% rate implies — because 40% is not the top of it.
What the table doesn't show
Three things that matter and appear in no comparison table.
Reliefs aren't claimed for you in Ireland. The UK has PAYE reconciliation and the P800 — HMRC calculates overpayments and contacts you. Ireland does not. Rent credit, medical expenses, remote working relief, flat rate expenses: every one requires you to file. You have four years, and most people never do. That gap is frequently worth more than the difference between the two systems. See the top Irish tax deductions you could be missing.
Pension relief works differently. In Ireland, relief is at your marginal rate on contributions up to an age-related percentage of earnings, capped at €115,000 of earnings — and it applies to income tax only, not USC or PRSI. See AVC and pension tax relief.
Capital gains are not comparable. Irish CGT is a flat 33% with a €1,270 annual exemption, applied to shares, crypto and property alike. See capital gains tax in Ireland.
For companies: the headline and the catch
Here Ireland's reputation is closer to accurate, with a caveat that matters for anyone incorporating from outside the EEA.
| Ireland | United Kingdom | |
|---|---|---|
| Trading income | 12.5% | 19% on profits below £50,000 |
| Main rate | 12.5% on trading income | 25% on profits above £250,000 |
| Non-trading income | 25% | same banded rates apply |
| Between thresholds | n/a | marginal relief applies |
Three things to understand before the 12.5% does any work for you.
It applies to trading income only. Rental income, investment income and other non-trading profits are taxed at 25% in Ireland. A company set up to hold property or investments gets 12.5% on nothing.
There is a director residency requirement. An Irish company must have at least one director resident in the EEA. Since Brexit, UK residents count as non-EEA for this purpose — which catches British founders who assume the two are still interchangeable.
Substance matters. A low headline rate attaches to genuine economic activity, not to a registered address. A company with no people, no premises and no decisions taken in Ireland is a different conversation from the one the 12.5% headline suggests.
On the UK side, the banded system means a small company can pay 19% — lower than the headline 25% implies — while a company above £250,000 of profit pays the full main rate.
If you're moving between the two
Coming to Ireland. Your first year is usually your largest refund: Irish credits are spread across twelve months, so arriving mid-year means a full year's credits meet a part year's earnings. Split Year Treatment protects that by excluding pre-arrival employment income. And most new arrivals spend their first months on emergency tax without realising it.
If you're British and now living in Ireland — particularly if you commute across the border, or still hold UK property or an ISA — the detail is in tax for UK nationals in Ireland.
Leaving Ireland for the UK. The same arithmetic in reverse: your departure year is usually a refund, and four years remain open behind you. 2022 closes permanently on 31 December 2026. See leaving Ireland and the refund you might be owed.
Ireland and the UK have had a double taxation agreement since 1976, so the same income shouldn't be taxed twice — but relief is claimed and evidenced, not applied automatically. And note that after three consecutive years of Irish residence you become ordinarily resident, which brings disposals of assets anywhere in the world within Irish CGT, and continues for three years after you stop being resident. The framework is in moving to Ireland: how cross-border taxes work.
If your position spans both countries — employment in one, property or a company in the other — that's what our VIP Premium service is for. For a straightforward review of four open Irish years, the Tax Back service covers it. No refund, no fee.
Related reading
Questions we get asked
Is Ireland a high-tax country compared to the UK?
For employees it depends entirely on income. At 30,000 Ireland takes noticeably less; around 60,000 the two are within a percentage point; at 100,000 the UK is meaningfully cheaper. The reason is structural — Ireland's social charges rise with income while UK National Insurance falls to 2% above the higher-rate threshold.
Why does my Irish payslip have three deductions instead of two?
Income tax, USC and PRSI are calculated on three different bases. USC has no credits applied to it at all, and PRSI isn't reduced by pension contributions. See how to read your Irish payslip.
I'm a UK resident setting up an Irish company. Anything I should know first?
Yes — since Brexit, UK residents no longer satisfy the EEA-resident director requirement. That changes both the cost and the structure of incorporating in Ireland, and it's the single most common surprise for British founders.
Does the 12.5% rate apply to rental income held through a company?
No. The 12.5% rate is for trading income. Non-trading income, including rent and investment returns, is taxed at 25% in Ireland.
I've worked in both countries this year. Where do I file?
Potentially both, with the treaty and a foreign tax credit resolving the overlap. Split Year Treatment may apply on the Irish side for the year you moved. This is one of the genuinely two-country situations, and it's worth having reviewed rather than guessed.
Which is better overall?
That question has no answer without your numbers. Income level, whether you have a company, what you own and where, and whether you'll actually claim your Irish reliefs all move the result more than the headline rates do. If you're already living in Ireland, the more useful question isn't which country taxes less — it's whether you've claimed the four years that are still open. Start with 2022.