Yes, France does tax retirement income for U.S. expats once you become a French tax resident, but the US-France tax treaty decides which country actually collects on each type of income. U.S. Social Security and pensions paid for U.S. government service stay taxable only in the United States. Distributions from 401(k)s, traditional IRAs, and private workplace pensions are taxable primarily in France, at progressive rates reaching 45%, plus social charges of up to 9.1%. A 10% automatic deduction on pension income, capped at €4,399 per household for 2025 income, takes some of the edge off.
When France Considers You a Tax Resident
French residency is what turns on the tax obligation, and Article 4 B of the Code Général des Impôts uses several tests. Meeting any one of them is enough.1Légifrance. France Code Général des Impôts – Article 4 B
The first is your foyer, meaning your permanent household. If your spouse and children live in France, that usually settles it. The second is your principal place of abode. Spending more than 183 days in France in a calendar year makes France your principal place of abode almost automatically, though a shorter stay can still qualify if no other country accounts for more of your time. The third is the center of your economic interests: if your main investments, business assets, or income sources are in France, that alone establishes residency.2Direction Générale des Finances Publiques. BOI-INT-DG-20-10-10 – Articulation des Conventions Fiscales Internationales avec les Règles de Territorialité de Droit Interne
Once you’re a French tax resident, France asserts the right to tax your worldwide income. The treaty then narrows that right for certain U.S.-source retirement payments.
How the US-France Treaty Splits Retirement Income
The treaty sorts U.S. retirement income into distinct categories, and each category has its own rule about which country taxes it. This is where most cross-border retirees either save or lose real money.3Internal Revenue Service. Convention Between the Government of the United States of America and the Government of the French Republic for the Avoidance of Double Taxation
U.S. Social Security
Social Security benefits are taxable only in the country that pays them. For an American collecting Social Security while living in France, that means the United States taxes the benefits and France does not impose its income tax on them.
U.S. Government Pensions
Pensions paid by the U.S. federal government, a state government, or a local authority for government service fall under Article 19 of the treaty. These are taxable only in the United States. France cannot impose income tax on them, though it still requires you to declare them for the effective rate calculation described below.
401(k)s, IRAs, and Private Pensions
Under Article 18, private pensions and distributions from retirement arrangements paid to a French resident are generally taxable only in the country of residence. For an American retiree in France, that means France holds the primary taxing right on 401(k) distributions, traditional IRA withdrawals, and private workplace pensions.
The wrinkle is U.S. citizenship. The United States taxes its citizens on worldwide income no matter where they live, so both countries may assert a claim on the same distribution. The treaty’s double-taxation relief keeps you from paying the full amount twice through foreign tax credits, but you’ll be filing returns in both countries and reconciling the overlap every year.
Roth IRAs
Roth withdrawals are a gray area. Qualified distributions are tax-free in the United States, but France has no equivalent domestic account and does not automatically recognize the tax-free status. Article 18 assigns residence-country taxing rights to private pension distributions, so whether France honors the U.S. tax-free treatment on a qualified Roth withdrawal depends on how French authorities classify the account and what documentation you provide. Retirees with significant Roth balances should get cross-border advice before taking distributions.
The Taux Effectif Trap
Even income the treaty exempts from French tax, such as U.S. Social Security and government pensions, must be declared on your French return. France applies the “taux effectif” method: the exempt income is added into the calculation to determine your marginal rate, then a credit removes the French tax attributable to it.4impots.gouv.fr. Taxation of Foreign-Source Income You don’t pay French income tax on the exempt income itself, but its presence pushes your other French-taxable income into a higher bracket.
How Much France Actually Takes
The 10% Pension Allowance
French tax law automatically applies a 10% deduction to pension income before calculating tax. There’s nothing to claim; it happens on the return itself. The deduction is capped at €4,399 per household for 2025 income (declared in 2026), so very large pensions don’t get the full 10%. A minimum floor applies at the low end.
Progressive Income Tax Brackets
France taxes income under a family quotient system: total household income is divided by the number of parts assigned to the household (roughly one per adult and a half per dependent child), each share runs through the brackets, and the result is multiplied back up. For income declared in 2026, the brackets per share are:5impots.gouv.fr. Individuals Taxation
- Up to €11,600: 0%
- €11,601 to €29,579: 11%
- €29,580 to €84,577: 30%
- €84,578 to €181,917: 41%
- Above €181,917: 45%
The 7.5% Lump-Sum Option
If a retirement payout comes as a single lump sum rather than periodic payments, you may qualify for a flat 7.5% rate instead of the progressive scale. Two conditions apply: the payment cannot be split into installments, and you must show that contributions during the accumulation phase were deductible from taxable income (or connected to income exempted in the country that had the right to tax it). The option doesn’t apply to distributions from France’s Plan d’Épargne Retraite (PER) accounts, and you have to elect it on your return.
Social Charges on Top of Income Tax
France levies social contributions on pension income separately from income tax. The three main charges are the CSG, the CRDS, and the CASA, and the rate depends on your reference taxable income from two years prior. For 2026, the tiers for a single-person tax household are:6Cleiss. The French Social Security System
- €13,048 or less: fully exempt
- €13,049 to €17,057: CSG 3.8% plus CRDS 0.5%
- €17,058 to €26,471: CSG 6.6% plus CRDS 0.5% plus CASA 0.3%
- €26,472 and above: CSG 8.3% plus CRDS 0.5% plus CASA 0.3%
At the top tier, combined social charges reach 9.1%. Stacked with income tax, a retiree in the 30% bracket with high pension income can face a combined marginal burden approaching 40%.
One boundary worth flagging: the S1 exemption from CSG, CRDS, and CASA that some European retirees rely on flows from EU regulations and covers retirees whose healthcare is financed by another EU or EEA member state. Americans generally cannot use it.
Reporting Your U.S. Accounts
This is the compliance trap that catches Americans most often. French tax residents must disclose every foreign bank account, investment account, retirement account, life insurance policy, and digital asset account they hold, use, open, or close during the year. Disclosure goes on Form 3916/3916 bis, filed with your annual return. Your IRA, 401(k), U.S. brokerage account, and even a PayPal account handling more than €10,000 in annual transfers all qualify.7impots.gouv.fr. Declaring Foreign Bank Accounts and Life Insurance Policies Held Abroad
Penalties are steep. Each undeclared account triggers a €1,500 fine. If the account is held in a country without a tax assistance agreement with France, the fine rises to €10,000 per account. On top of that, French authorities can apply a 40% surcharge on income they presume was generated by undisclosed accounts. Three undisclosed accounts in a treaty country means at least €4,500 in fines before any tax adjustment.
The Real Estate Wealth Tax
France’s Impôt sur la Fortune Immobilière (IFI) applies when your net real estate assets exceed €1.3 million on January 1 of the tax year, whether owned directly, through companies, or through real-estate-heavy investment vehicles. For new French tax residents, only French real estate counts toward the threshold during your first five years of residency. Foreign properties are excluded during that window.8impots.gouv.fr. Property Wealth Tax (IFI) for Non-Residents Who Own Property in France After year five, worldwide real estate enters the calculation. IFI is separate from income tax and social charges.
Filing the French Return
The main declaration is Form 2042. If you receive income from outside France, add Form 2047 for foreign-sourced income; amounts from 2047 carry over to specific boxes on 2042. Add Form 3916/3916 bis for foreign accounts.9impots.gouv.fr. Taxation of Income Received Abroad
All amounts are declared in euros. Official guidance calls for using the Banque de France rate on the date each payment was received, though many practitioners use an average annual rate and document their method.
First-time filers usually have to submit on paper, with Form 2042, Form 2042-C, and Form 3916/3916 bis, plus a copy of your ID, proof of your French address, and a bank statement (RIB), sent to the Service des Impôts des Particuliers for your area. After that first filing, you receive a fiscal identification number and can file online.
The paper deadline for 2026 declarations is May 19, 2026, based on postmark. Online deadlines are staggered by department and fall a few weeks later. Filing late without a formal notice carries a 10% penalty on the tax owed. If a mise en demeure is issued and you still don’t file within 30 days, the penalty rises to 40%, and in cases of concealed activity it reaches 80%.10Légifrance. France Code Général des Impôts – Article 1728 Keep the avis d’imposition the tax office sends you afterward; it’s your official proof of income and tax status for everything from mortgages to residence permit renewals.