Mortgage Calculator

Calculate your monthly payments, total loan cost and visualize your amortization schedule in seconds.

Your project

Purchase price (€)

Down payment (€)

Annual interest rate (%)

Duration (years)

Annual insurance rate (%)

Loan amount

200 000 €

Purchase price (€) 250 000 € − Down payment (€) 50 000 €

Total monthly payment

1 218 € /month

of which 1 160 € loan + 58 € insurance

Total interest

78 381 €

Total insurance

14 000 €

Total extra cost (interest + insurance)

92 381 €

Cumulative per year

Free account

💾 Save this simulation

Create your free account to retrieve your simulations and track your wealth in real time

✓ 100% free
✓ No credit card
✓ Cancel anytime

Create my free account

How to calculate your mortgage monthly payment?

The monthly payment of a mortgage depends on three key variables: the borrowed capital (purchase price minus down payment), the annual interest rate and the loan duration. It is calculated using the constant annuity formula.

Monthly payment formula:

M = C × (r/12) / (1 − (1 + r/12)^(−n))

M = monthly payment (excluding insurance)
C = borrowed capital
r = annual rate (as decimal)
n = number of monthly payments (duration × 12)

Interest rate, duration, down payment: the 3 levers of your mortgage

The interest rate

In 2026, fixed mortgage rates range between 3 and 4% depending on profiles and durations. Even 0.1% less can represent several thousand euros over the total duration.

The duration

A longer duration reduces the monthly payment but increases the total cost (more interest). Over 25 years vs 20 years, the total cost can increase by 20 to 30%.

The down payment

A down payment of at least 10% is generally required to cover notary fees. The higher the down payment, the less you borrow and the less interest you pay.

Notary fees and true acquisition cost

The total cost of a real estate purchase is not just the mortgage. Notary fees represent 7 to 8% for old properties and 2 to 3% for new ones. These fees are generally financed by the down payment.

Old property (7-8%)

For €200,000: €14,000 – €16,000 in notary fees

New property (2-3%)

For €200,000: €4,000 – €6,000 in notary fees

Frequently asked questions about mortgages

What rate can I get for a mortgage in 2026?▼

In 2026, fixed mortgage rates generally range between 3.0 and 3.8% over 20 years for a standard profile (permanent contract, 10-20% down payment). The best profiles (down payment > 20%, high income) can get rates below 3%. Comparing several banks and using a broker can save you 0.2 to 0.5 points.

Is mortgage insurance mandatory?▼

Mortgage insurance is not legally mandatory, but banks systematically require it. Since the Lagarde law (2010) and the Lemoine law (2022), you can take out external insurance (insurance delegation) often 2 to 3 times cheaper than the bank's group insurance.

Is it better to repay early or invest?▼

If your mortgage rate is lower than the expected return on your investments (e.g. 3% mortgage vs 7% on ETFs), it is mathematically more profitable to invest rather than repay early. But the psychological peace of mind of being debt-free also has value.