Why do banks limit early repayments of mortgage loans?

You have been repaying your mortgage for several years, and a windfall allows you to pay off part of it. You contact your bank, and the response surprises you: fees, minimum thresholds, sometimes a flat-out refusal. Banks limit early repayments of mortgages for reasons related to both their business model and the legal framework of the loan agreement.

The mortgage from the bank’s perspective: a long-term investment

When a bank grants a mortgage, it is not just providing a service. It is investing. The capital lent is associated with a stream of interest expected over the entire duration of the contract, sometimes twenty or twenty-five years.

This stream constitutes a significant part of its profitability. The bank has itself borrowed or mobilized funds to grant you this loan. It has also incurred fixed costs: processing the file, administrative management, borrower insurance. Every early repayment shortens the duration of interest collection and reduces the overall return on the operation.

To better understand the reasons for restrictions on early repayments, it is essential to keep in mind this principle: the loan agreement binds two parties. The borrower commits to repaying according to a schedule, and the bank has calibrated its income based on this specific schedule.

The bank also plans its own long-term financial commitments. An early repayment, especially if it is total, deprives it of expected income and forces it to reinvest this capital in a context of potentially less favorable rates.

A woman carefully examines a mortgage contract at home, trying to understand the penalties for early repayment

Early repayment penalties: the compensation mechanism provided by the contract

French law allows any borrower to repay their mortgage early, in full or in part. This is guaranteed by Article L.313-47 of the Consumer Code. However, the loan agreement may provide for early repayment penalties, often referred to by the acronym IRA.

Why do these penalties exist? They compensate for the bank’s lost earnings. Specifically, their amount is regulated by law. It cannot exceed the lesser of the following two caps:

  • Six months of interest on the repaid capital, calculated at the average rate of the loan.
  • An amount corresponding to 3% of the remaining capital due before repayment.

This dual cap protects the borrower from excessive penalties. The bank cannot charge more, even if its actual lost earnings are higher.

Three situations where IRAs are not due

The law provides for cases of exemption. You do not have to pay penalties if the early repayment follows:

  • A change of workplace (yours or your spouse’s).
  • A forced cessation of professional activity, such as dismissal.
  • The death of the borrower or their spouse.

Outside of these situations, IRAs apply according to the terms of the contract. Some institutions agree to negotiate them, particularly in the context of a loan buyout by a competitor, but they are not obligated to do so.

The 10% clause: why the bank can refuse a small partial repayment

You want to repay a few thousand euros, not the entire amount? The bank can say no. The mortgage agreement is allowed to include a clause that prohibits any partial repayment equal to or less than 10% of the initial borrowed amount, unless it is the final balance.

This clause aims to prevent the multiplication of small partial repayments. For the bank, each operation of this type generates a recalculation of the schedule, administrative processing, and a disruption in the projected management of the loan portfolio.

An article by Kohen Avocats (August 2026) highlights that this contractual provision is frequently used by banking institutions. It allows them to maintain the profitability of the loan in the face of repeated and low capital outflows.

If you are considering a partial repayment, first check your contract. The 10% threshold of the initial capital is the limit below which the bank can block the operation.

Low rates and early repayment: a calculation that does not always work in your favor

Repaying early always seems advantageous. In practice, it depends on your loan’s rate and when you do it.

A loan taken out at a high rate generates a lot of interest. Paying it off early eliminates those future interests and reduces the total cost of credit. The gain is real and often substantial.

On the other hand, if your rate is low, the gain diminishes. The remaining interest represents a modest sum, and the early repayment penalties may absorb part of the savings achieved. Before repaying, compare the cost of the IRAs with the interest you avoid.

A often overlooked point: borrower insurance

In the case of total repayment, the borrower insurance contract ends. This is an additional saving, as insurance premiums represent a recurring cost over the entire duration of the loan.

For a partial repayment, the situation differs. If you reduce the loan duration, the contribution period shortens. If you reduce the monthly payments without changing the duration, you continue to pay insurance over the same period. This choice directly affects the remaining total cost.

A mortgage amortization table placed on a meeting table with a calculator and a model house, illustrating the issues of early repayment

Negotiating with your bank: what is possible and what is not

Early repayment penalties are negotiable, but only before signing the loan agreement. At the time of the loan offer, you can request a clause to eliminate or reduce the IRAs. Some banks accept this, especially if the file is strong.

Once the contract is signed, the room for maneuver decreases. The negotiation of IRAs takes place before signing, not after. When refinancing a loan with a competing institution, the initial bank may agree to reduce penalties to maintain the client relationship, but this is a commercial decision, not a legal obligation.

The loan agreement remains the reference. Anything not included in it cannot be imposed by the bank, and everything that is included applies. Reviewing the clauses related to early repayment before signing a mortgage avoids surprises several years later.

Why do banks limit early repayments of mortgage loans?