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Mortgage Refinance
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Mortgage Refinance Calculator

Evaluate the profitability of refinancing your mortgage

What is Mortgage Refinance?

Mortgage refinance, also called loan renegotiation, consists of replacing your current mortgage with a new loan at a more advantageous rate. The main objective is to reduce the total cost of your loan by taking advantage of falling interest rates in the market. Two options are available: - Internal renegotiation: You stay with your current bank which agrees to lower your loan rate. Fewer fees but potentially less savings. - External buyout: You have your loan bought out by a competing bank. More fees but potentially better conditions.

When Should You Refinance Your Mortgage?

Significant Rate Drop

A difference of at least 0.7% between your current rate and the new proposed rate is recommended.

Sufficient Remaining Term

The more years you have left to repay, the greater the savings. Ideally: 10 years minimum.

High Remaining Principal

A remaining principal above €70,000 makes it easier to recoup the fees.

Stable Financial Situation

Your borrower profile must allow you to obtain an advantageous rate from banks.

What Fees to Expect for Refinancing?

Early Repayment Penalties (IRA)

IRAs are capped by law at 3% of the remaining principal or 6 months of interest (whichever is lower).

Processing Fees

The new bank charges processing fees for your application. Variable amount: €500 to €1,500.

Guarantee Fees

If you change banks, you must pay for new guarantees (mortgage, surety). Estimated cost: 0.5 to 1.5% of principal.

New Borrower Insurance

During an external buyout, you must take out new insurance. Thanks to the Lemoine Law (2022), you can switch insurance at any time, free of charge — delegation can reduce costs by 30 to 50%.

Alternatives to Refinancing

If refinancing is not profitable in your situation, several alternatives exist: - Internal renegotiation: Ask your bank to lower your rate - Payment modulation: Some contracts allow you to temporarily increase your payments - Partial early repayment: Repaying part of the principal reduces future interest - Change borrower insurance: Since the Lemoine law (2022), you can change insurance at any time

Frequently Asked Questions

No, the profitability of refinancing depends on several factors: the rate difference (minimum 0.7%), the remaining principal, the remaining term, and the refinancing fees (IRA + processing fees). Our calculator helps you accurately evaluate profitability.

The payback period varies case by case, but it generally ranges between 18 and 48 months. Beyond 36 months, profitability becomes more uncertain.

Yes, there is no legal minimum period to refinance a mortgage. However, banks often apply higher IRAs during the first years.

No, you can first try an internal renegotiation with your current bank, which avoids guarantee fees and reduces processing fees.

IRAs depend on your initial loan contract. They are capped by law at 3% of the remaining principal or 6 months of interest (whichever is lower).

Yes, consolidating multiple mortgages is possible and can be interesting to simplify management and reduce the overall monthly payment.

During an external buyout, you must take out new borrower insurance. This is an opportunity to shop around and make additional savings.

If your bank refuses an internal renegotiation, you can have your loan bought out by a competing bank. Use a mortgage broker to compare offers.

The Lemoine Law (2022) allows you to switch your borrower insurance at any time, free of charge and without waiting for your contract anniversary date. During a refinance, this is the ideal opportunity to compare insurers — insurance delegation can reduce costs by 30 to 50%. Additionally, for loans under €200,000 repaid before age 60, no medical questionnaire is required.

Yes, the law provides three exemption cases for early repayment penalties: dismissal (of the borrower or spouse), mandatory job relocation, and death of the borrower or spouse (article L313-48 of the Consumer Code). Additionally, some loan contracts include a penalty waiver clause negotiated at origination. Check your original loan offer.

The High Council for Financial Stability (HCSF) has imposed two binding limits since 2022: a maximum debt-to-income ratio of 35% (including borrower insurance) and a maximum loan duration of 25 years (27 years for off-plan purchases - VEFA). Banks have a 20% flexibility margin to deviate from these rules.

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Warning: The simulations presented on this site are provided for informational purposes only and do not constitute investment advice, a credit offer, or a recommendation to buy or sell. The results displayed are estimates based on the data provided and do not guarantee future performance. Any real estate investment decision should be made after consulting qualified professionals (notary, financial advisor, accountant, tax lawyer). The publisher disclaims any responsibility for decisions made based on these simulations.
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Loan Information

Enter the characteristics of your current loan and the proposed new loan

* Required field

Current Loan

€

Amount you still have to repay

%

Interest rate of your current loan

months

15 years

Proposed New Loan

%

Interest rate for the refinance

months

15 years

€

Calculated automatically (sum of detailed fees)

Fee Breakdown

€

Can be calculated automatically

€

Usually 500-1000€

€

Mortgage or surety (0€ if internal)

Borrower InsuranceOften the biggest saving lever

€
%

New insurance will be calculated on remaining capital