French Tax System for Expats: First Year, Partial Year, and Cross-Border Income Explained

Under Article 4 B of the Code Général des Impôts (CGI), you are considered a French tax resident if any of the following apply:

• Your foyer (home/family) is in France — even if you work abroad

• Your séjour principal (principal place of stay) is in France — you spend more than 183 days per year in France

• Your principal professional activity is exercised in France

• The centre of your economic interests is in France (main investments, business headquarters)

Meeting any one of these criteria makes you a French tax resident, liable to tax on your worldwide income (revenu mondial). Double taxation treaties (conventions fiscales bilatérales) prevent you from being taxed twice on the same income.

The 183-day rule is the most commonly cited, but it is not the only test — the foyer criterion often takes precedence for expats with families in France.

If you arrive mid-year, you file a partial-year tax return covering only the period from your arrival to 31 December.

Key rules:

• You declare only the income earned from your arrival date in France (or from the date you become tax resident)

• Foreign income earned before arrival is generally not taxable in France (unless it is French-source income)

• You file using the formulaire 2042 (standard income declaration) plus formulaire 2047 if you have foreign income

• The tax calculation is not prorated — France applies its progressive scale to your actual income for the period. However, the quotient familial and standard deductions apply in full.

• Prélèvement à la source (PAS): Your employer starts withholding income tax from your salary immediately. The rate is initially a default rate (taux neutre) based on your salary alone, until you file your first return and receive a personalised rate.

• Deadline: Your first declaration is typically due in May/June of the following year (e.g., income earned in 2026 is declared by May/June 2027)

France uses a progressive income tax system with the following brackets for 2026 income (declared in 2027):

• 0 %: Up to €11,497

• 11 %: €11,498 to €29,315

• 30 %: €29,316 to €83,823

• 41 %: €83,824 to €180,294

• 45 %: Above €180,294

These rates apply to the revenu net imposable per fiscal part (quotient familial). A single person = 1 part; a couple = 2 parts; each dependent child = 0.5 parts (1 part from the 3rd child).

Example: A couple (2 parts) with €80,000 net taxable income: €80,000 ÷ 2 = €40,000 per part → taxed at the 30% bracket → then multiplied back by 2.

Additionally, high earners pay the contribution exceptionnelle sur les hauts revenus: 3% on income between €250,001 and €500,000 (single) and 4% above €500,000.

Since January 2019, France collects income tax monthly via payroll withholding (prélèvement à la source).

How it works for new expats:

• Your employer applies a taux neutre (neutral/default rate) based on your monthly gross salary until your first tax return is processed

• The taux neutre is often higher than your actual rate — especially if you are married or have children (since it doesn't account for your family situation)

• After your first declaration (May/June of year N+1), the tax administration sends your employer a taux personnalisé (personalised rate) reflecting your actual situation

• You can also opt for individualised rates (taux individualisé) if your spouse earns significantly more or less

• Any overpayment during the taux neutre period is refunded after your first declaration, typically in July/August of the following year

Key action: File your first declaration on time. The sooner you do, the sooner your withholding rate is corrected and any overpayment refunded.

If you have income from multiple countries, the rules depend on the applicable double taxation treaty (convention fiscale bilatérale).

Common scenarios for expats in France:

• Swiss employment income (frontalier): Taxed at source in Geneva; taxed in France for other cantons. See our Permit G guide for details.

• UK pension or rental income: Generally declared in France with a tax credit for UK tax paid (Franco-British convention, Article 24)

• US income: The US-France tax treaty uses a credit method. US citizens remain liable to US tax worldwide — special coordination rules apply.

• EU employment income: Generally taxed in the country of employment (EU Regulation 883/2004 for social security; bilateral treaty for income tax)

Formulaire 2047: All foreign income must be declared on this form, even if a treaty exempts it from French tax — the taux effectif (effective rate) method may still apply, raising the rate on your other French income.

The AdminLanding Fiscal module (free) provides guided explanations of cross-border taxation, first-year rules, and partial-year scenarios — helping you understand your obligations before you file.

On declaration day itself, if impots.gouv.fr forms feel opaque, Guide: Démarches en France sits right on the page and annotates every field, explains every step, in English or French — covering impots.gouv.fr, Ameli, CAF, France Travail, and 25+ other official sites. Available as a Chrome extension or a mobile app on Google Play.

Standard deduction (abattement de 10 %): Automatically applied to salary income. You can opt for frais réels (actual expenses) if your deductible costs exceed 10% — common for long-distance commuters.

Tax credits (réductions et crédits d'impôt):

• Childcare costs: 50% tax credit for children under 6 (crèche, assistante maternelle), capped at €3,500 per child

• Home services (services à la personne): 50% tax credit for cleaning, gardening, tutoring, etc.

• Charitable donations (dons): 66% reduction for general charities (capped at 20% of taxable income); 75% for food banks and homelessness charities (capped at €1,000)

• Energy renovation (MaPrimeRénov'): Not a tax credit but a direct subsidy — available for homeowners and some landlords. For a full breakdown of available grants, see this guide on heat pump subsidies and renovation aid in France

• Impatriation regime (Article 155 B CGI): If you were recruited abroad to work in France, you may benefit from a partial exemption on the salary premium linked to your move (prime d'impatriation) and on certain foreign-source income, for up to 8 years. This is one of the most valuable — and underused — tax benefits for expats.

Caution: The impatriation regime must be claimed; it is not automatic. Consult a tax advisor or use the AdminLanding fiscal guidance to determine eligibility.

• Not declaring foreign income: Even if exempt by treaty, you must declare it on formulaire 2047. Failure to declare can trigger penalties of 10–40% plus interest.

• Missing the impatriation regime: You must elect it on your first French tax return. Retroactive claims are denied.

• Ignoring the taux neutre overpayment: Many expats don't realise they overpaid during their first year. File on time to get your refund.

• Confusing tax year with calendar year: France's tax year is the calendar year (January–December). Your declaration covers the previous calendar year.

• Not declaring foreign bank accounts: Under Article 1649 A CGI, you must declare all foreign bank accounts on formulaire 3916 (or 3916-bis). Penalty: €1,500 per undeclared account per year (€10,000 for accounts in non-cooperative states).

• Forgetting social charges (prélèvements sociaux): Investment income (rental, dividends, capital gains) is subject to 17.2% social charges (CSG/CRDS) in addition to income tax.