🇫🇷 Ireland vs France Tax in 2026: Which One Actually Costs You More?

For employees: the same salary, both systems

Here's the full calculation for a single employee with no dependants on €60,000 gross.

Effective rate: 25.1% in Ireland, 31.4% in France. The Irish employee is €3,786 a year better off.

Now look at the lines separately. The French employee pays €6,401 in income tax against the Irish employee's €11,200. But they pay €12,460 in social contributions against Ireland's €3,875 in PRSI and USC combined. France's reputation for high tax is really a reputation for high social charges.

Why the gap closes as you earn more

France front-loads. Social contributions take roughly a fifth of salary from the first euro — pension, complementary pension, CSG and CRDS all apply at modest incomes. That's why the gap is widest at €30,000: an Irish employee on that salary pays very little PRSI and USC, while a French employee is already paying the full stack.

Ireland back-loads. Irish income tax jumps to 40% at €44,000, and above €70,044 USC rises to 8%. Add PRSI and the marginal rate on each extra euro reaches 52.2%. France's marginal rate at the same salary is 42.2% — its 30% income tax band runs all the way to €84,577 of taxable income (the scale used in 2026 for 2025 income), and the capped state pension contribution stops rising at €48,060.

So every extra thousand euros above about €70,000 costs an Irish employee around €100 more than a French one. By around €103,000, that has eroded Ireland's entire head start.

The practical consequence: France is expensive for ordinary earners and comparatively reasonable for high earners — the reverse of how it's usually described.

Married or with children: how the gap changes

French income tax uses the quotient familial. The household's taxable income is divided into parts: one for each adult in a married or PACS couple, and a half-part for each of the first two children. The scale is applied to one part, then multiplied back up. A small-bill reduction, the décote, then cuts low tax bills further. The French Ministry of Finance sets out the 2026 scale and rules.

Ireland does something similar in a different way. A married couple or civil partners taxed jointly get a married person's credit of €4,000 instead of €2,000 and, with one income, a 20% band of €53,000 instead of €44,000. If the other spouse stays home to care for a child, the Home Carer Tax Credit adds up to €1,950. All three figures are on Revenue's 2026 tax credit chart.

Here is the same €60,000 salary across three households, with the other partner earning nothing:

What the numbers say. France's family relief is the bigger of the two: going from single to a family with two children cuts the French bill by €6,401, against €5,750 in Ireland. It still doesn't close the gap, because French relief only touches income tax, and at €60,000 most of what France takes is social contributions. A French family on this salary pays no income tax at all and still keeps €3,135 less than an Irish one.

Two caveats. Child benefit is paid outside the tax system in both countries and isn't in these figures. And if both partners earn, the Irish band rises by up to €35,000 for the second earner, while France pools both incomes before dividing by the parts, so a two-income couple needs its own calculation.

What the table doesn't show

In Ireland, nobody claims your reliefs for you. Rent credit, medical expenses, remote working relief, flat rate expenses — every one has to be claimed, by you. You can claim them for up to four years back. If you're used to a pre-filled French declaration, the Irish system will leave far more on the table, quietly. See the top Irish tax deductions you could be missing.

Much of what France takes is pension contribution. Below the social security ceiling, around 11% of a French salary goes to state and complementary pension schemes. Irish PRSI also builds State Pension entitlement, but at 4.35% since 1 October 2026 (4.2% before). Whether that's a cost or a saving depends on how long you'll stay and what you'd do with the difference — but it's not the same as tax disappearing.

Investment gains now cost almost exactly the same. From 1 January 2026, France's flat tax on capital gains from shares rose to 31.4% — 12.8% income tax plus 18.6% social contributions, after an increase in CSG. Ireland cut its CGT rate from 33% to 31% on 7 October 2026, and keeps a €1,270 annual exemption. The headline gap is now tiny; real estate gains are taxed separately in France and don't follow this comparison. See capital gains tax in Ireland.

France has a much broader regime for new arrivals than Ireland. Ireland's SARP applies only to employees assigned here by their employer, and exempts 30% of earnings above €125,000 from income tax. Under the régime des impatriés, an employee recruited from abroad can exempt their impatriation premium from income tax — either the actual amount in their contract or, by election, a flat 30% of their net pay.

It runs until 31 December of the eighth year after taking up the role, and requires that you weren't tax resident in France in the five preceding calendar years. Half of certain foreign-source investment income is exempt too. For a high earner moving to France, this changes the comparison above materially.

For companies and the self-employed

For companies, Ireland wins clearly. France's standard rate is 25%. A qualifying small company — turnover under €10 million, at least 75% of the capital held by individuals — pays 15% on its first €42,500 of profit. That still leaves every euro above €42,500 at double Ireland's trading rate.

The usual Irish caveats apply. The 12.5% is for trading income only; rental and investment profits are taxed at 25%. And an Irish company needs at least one EEA-resident director, which French residents satisfy.

For small freelancers, France has a regime Ireland has no equivalent to. The micro-entrepreneur pays social contributions as a flat percentage of revenue — 25.6% for non-regulated liberal professions, 21.2% for commercial services, 12.3% for sales — with an optional flat income tax payment on top for those who qualify, 2.2% for liberal professions.

It applies up to €83,600 of revenue for services and €203,100 for sales. The catch is that it's charged on revenue, not profit: with few costs, it's simple and competitive; with real expenses, it isn't. An Irish sole trader is taxed on profit under the ordinary rules, with no simplified regime at all.

If you're moving between the two

Coming to Ireland from France. Your arrival year is worth checking. If your first payslips were on emergency tax, or on a "week 1" basis that doesn't backdate your credits to 1 January, you'll have overpaid — and that only comes back once you file.

If you worked abroad earlier in the year, Split Year Treatment can keep that foreign employment income out of the Irish computation, provided you weren't Irish resident the year before and stay resident the following year. You have to claim it. The country-specific detail is in tax for French workers in Ireland.

Going the other way. Check whether the impatriés regime is available — a spell in Ireland may well supply the five years of non-residence it needs. On the Irish side, your departure year often produces 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 France have had a double taxation convention since it was signed in Paris on 21 March 1968, since modified by the OECD multilateral instrument. The same income shouldn't be taxed twice — but relief is claimed and evidenced, not applied automatically. You can find the text on Revenue's page for the Ireland–France treaty.

Note too that as an Irish tax resident you're within Irish CGT on assets anywhere in the world — although if you're not Irish-domiciled — and moving here doesn't by itself make you Irish-domiciled — a gain on an asset abroad is generally taxed in Ireland only to the extent the proceeds are brought into Ireland.

After three consecutive years here you also become ordinarily resident, which keeps you within the charge for three years after you leave. The framework is in moving to Ireland: how cross-border taxes work, and the fundamentals are in the complete guide.

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.

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.

Related reading

• Ireland vs Europe: all 9 countries compared
• Ireland vs Spain tax in 2026
• Ireland vs Italy tax in 2026
• Tax for French workers in Ireland
• Ireland vs Portugal tax in 2026
• Ireland vs Germany tax in 2026

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