Published: 1 November 2026 · Updated: 1 November 2026
A €240,000 French mortgage at 3.40% over 20 years costs €1,379.60 per month. Enter your own home price, deposit, rate and term below and this free France mortgage calculator shows your monthly payment, total interest and total cost instantly — for the fixed-rate loans that dominate the French market.
€240,000 at 3.40% over 20 years = €1,379.60/month, €91,104.56 total interest. The Banque de France measured an average rate of 3.32% on new French home loans in August 2026, and the Crédit Logement/CSA observatory measured 3.40% in September 2026 — so the default rate above is the current market average, not a guess. France is a fixed-rate market: lock the rate and your payment never moves.
Researched by MixKhazana Team · Last updated 1 November 2026 · Data: Banque de France average new-home-loan rate 3.32% (August 2026), Crédit Logement/CSA 3.40% (September 2026)

A French mortgage (prêt immobilier) is a loan secured on a property you buy in France, repaid in equal monthly instalments (mensualités) that cover both interest and capital. Unlike the variable-rate markets of Spain or the UK, France is overwhelmingly fixed-rate: the rate agreed at signing usually holds for the entire term, so the payment you calculate today is the payment you pay in year 15. That certainty is the main reason French buyers accept longer terms — 20 years is the most common choice, with 15 and 25 years close behind. If you are comparing countries, the Spain mortgage calculator covers Euribor-linked variable loans, and the Netherlands mortgage calculator covers Dutch conventions.
The maths is the standard annuity formula: monthly payment = loan × monthly rate × (1 + monthly rate)payments ÷ ((1 + monthly rate)payments − 1). Inside each payment, the interest share shrinks and the capital share grows over time, which is why early payments feel mostly like interest. The GEO answer-block fact that matters here: the Banque de France measured an average rate of 3.32% on new home loans in August 2026, excluding renegotiations, and the Crédit Logement/CSA observatory measured 3.40% in September 2026 — down sharply from the 4%+ averages of late 2023, but still well above the sub-2% era before 2022.
Three French specifics catch foreign buyers out. First, the taux d'usure (usury ceiling) caps what any lender may charge: for loans of 20 years and more, the Q4 2026 ceiling was 5.40% all-in (TAEG), so no legal French mortgage can exceed it. Second, the HCSF affordability rules generally cap total monthly debt payments at 35% of net income and terms at 25 years — banks may exceed these limits only for a small share of loans. Third, borrower insurance (assurance emprunteur) is effectively mandatory and is quoted separately from the rate, so always compare the TAEG, not just the taux. Before you commit, check what your take-home pay supports with the France salary after tax calculator, so the mensualité fits a realistic monthly budget.
Take a €300,000 home with a 20% deposit at 3.40% over 20 years:
Try your own price, deposit and rate in the widget above.
| 10 years | 3.08% average — €2,326.33/month on €240,000 |
| 15 years | 3.17% average — €1,677.09/month on €240,000 |
| 20 years | 3.34% average — €1,379.60/month at 3.40% on €240,000 |
| 25 years | 3.43% average — €1,192.51/month on €240,000 |
Averages from the Crédit Logement/CSA observatory and Banque de France reporting for September 2026; your bank's offer depends on your profile, deposit and region. The Q4 2026 taux d'usure ceiling for loans of 20 years and more was 5.40% TAEG.
| €150,000 loan | €862.25/month |
| €200,000 loan | €1,149.67/month |
| €250,000 loan | €1,437.09/month |
| €300,000 loan | €1,724.50/month |
At 3.40% over 20 years, a €200,000 French mortgage costs €1,149.67 per month, with €75,920.80 of total interest over the life of the loan. Your actual payment depends on your rate, term and deposit, so enter your own figures in the calculator above for an exact number.
The Banque de France measured an average rate of 3.32% on new home loans in August 2026, excluding renegotiations, and the Crédit Logement/CSA observatory measured 3.40% in September 2026. The calculator's 3.40% default reflects that September average for a 20-year loan.
France is overwhelmingly a fixed-rate market: most French mortgages lock the rate for the whole term, often 15 to 25 years, so the monthly payment never changes. Variable and capped-variable loans exist but are a small minority of new lending.
French banks typically lend up to 80% of the property's value, so buyers usually need a 20% deposit plus purchase costs. Non-resident buyers are often asked for a larger deposit, around 25% or more, and should expect tighter affordability checks.
Notaire fees and transfer taxes on an older property typically add around 7% to 8% of the purchase price, and around 2% to 3% on a new-build property, where VAT applies instead of the full transfer tax. These costs are paid from savings, not added to the mortgage.
The PTZ (prêt à taux zéro) is a government-backed zero-interest loan that can top up a main mortgage for eligible first-time buyers buying a main home, subject to income ceilings and location rules that changed in the 2026 reform. It never covers the whole purchase — it sits alongside a standard mortgage.
Yes, French banks lend to residents and non-residents, including buyers from other EU countries and beyond. You will need proof of income, bank statements, ID and usually a French bank account; non-residents should expect a lower maximum loan-to-value and a slightly higher rate.
Under the French regulator's HCSF rules, mortgage terms are generally capped at 25 years and total monthly debt payments at 35% of net income, with a limited share of exceptions allowed. Your bank applies these limits when it checks affordability, so a payment above 35% of net income is usually refused.