Thinking of retiring to France, or already settled there? For UK pensioners, the French tax bill on a pension can throw up a few nasty surprises.
The headline is simple enough: once you become a French tax resident, most UK pension income is taxed in France, not the UK. Government service pensions are the big exception.
- Most UK pension income is taxed in France once you live there.
- Government service pensions stay taxed in the UK — and dodge French social charges.
- Social charges of up to 9.1% sit on top of income tax, unless you hold an S1.
- France taxes the whole household, which can soften the blow for couples.
- A 2025 row over charging social charges on government pensions was confirmed to be wrong.
What’s Behind the French Tax Bill for UK Pensioners
Under the UK-France double tax treaty (signed in 2008), most UK pension income received by French residents is taxed in France.
Blevins Franks explains the one big exception — government service pensions, which always stay taxable in the UK. Retirement and disability pensions are treated much like a salary.
You get a 10% deduction (minimum €450, maximum €4,399 in 2025), then pay tax at the scale rates.
How the Income Tax Works
French income tax is progressive. As of December 2025 (for 2024 income), the bands run: nothing up to €11,497; 11% to €29,315; 30% to €83,823; 41% to €180,294; and 45% above that. Crucially, France taxes the whole household, not the individual.
Income is shared across “parts” (parts familiales) — a couple gets two, which can cut the bill nicely if one partner earns more than the other.
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The Social Charges Sting
This is the part that surprises people. On top of income tax, France adds social charges (prélèvements sociaux).
For pensions, the rate is 9.1% — that’s CSG at 8.3% plus CRDS at 0.5%. Lower earners pay 8.3% or 7.4%. But there’s a get-out.
If you hold an S1 form, which confirms the UK covers your healthcare, you pay no social charges on UK pension income at all.
Government Pensions: The Golden Ticket
If your pension comes from UK government service — civil service, military, police, fire, diplomatic, and sometimes NHS or teaching — it’s taxed only in the UK under Article 19.
You still declare it in France and receive a credit, so you effectively pay no French tax on it. Better still, it’s exempt from social charges too.
Skybound Wealth Management spells out the saving: a €20,000 government pension avoids €1,820 a year in social charges — over €36,400 across 20 years of retirement.
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The 2025 Social Charges Row
Throughout 2025, some French tax offices began billing UK government pensioners for social charges, often those not yet drawing a state pension.
The Connexion reports that after “MAP” procedures — talks between UK and French officials — the French authorities confirmed this treatment was incorrect. Your accountant might point to Article 53 of December’s social security finance law, which brings in a new healthcare “financial participation” fee for residents under the PUMA scheme.
But that’s a separate fee, not a social charge, and the decree is still awaited. The treaty outranks it regardless. The DGFiP confirmed the charges form an “indivisible” package with income tax, so they simply can’t be levied on these pensions.
Been charged wrongly? You can reclaim up to five years of overpaid social charges from the French tax authority by filing a réclamation.
State Pension and The Paperwork
Your UK state pension is always taxable in France (bar government pensions). It’s paid gross in the UK, so you settle up in France. The same applies to private, company and occupational pensions.
To stop UK tax being deducted at source, you file HMRC’s “Form France-Individual” with your local French tax office, and HMRC then tells your provider to pay you gross.
Taxpert notes that your private and state pensions go on the same line of the French return, added together rather than declared separately. S1 holders just tick box 8SH or 8SI — no figure needed.
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Lump Sums — Tread Carefully
The UK’s 25% tax-free lump sum is where the advice splits. Take it after becoming a French resident, and it may be fully liable to French income tax and possibly social charges.
Some advisers, though, treat a genuine one-off lump sum as a tax-free return of capital in France. And if you take your whole pot at once from a contributory scheme, a fixed 7.5% rate can apply.
The lesson is simple: get the timing and the wording checked before you withdraw a penny.
Other Bits Worth Knowing
Moved your pot into a QROPS? Since October 2024, that transfer faces a 25% overseas charge in the UK, although French tax treats a QROPS like a normal personal pension. Investment income – interest, dividends, and capital gains – is taxed at a flat 30%, dropping to 20.3% if you hold an S1.
And Assurance-Vie remains a popular, tax-efficient French savings wrapper, with handy estate-planning perks too.
The Bottom Line
The overall picture is clear enough. Know your pension type, claim your S1 and any government pension exemption, file correctly, and review it all each year. Get those right, and a UK pensioner’s French tax bill can end up far lighter than feared.
No doubt, there are changes in the tax bills but if you are aware of them early, you can tackle them easily.
Sources & References:
- Blevins Franks – Government service pensions are always taxable in the UK.
- Sky Bound Wealth Management – A €20,000 government pension avoids €1,820 a year in social charges.
- Taxpert – Private and state pensions go on the same line of the French return.
- The Connexion – French authorities confirmed this treatment was incorrect.
