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Consumer and banking · Mortgage credit · an APR error

Challenging an incorrect French mortgage APR

An incorrect French mortgage APR must be checked against the offer, cash flows and costs required to obtain the credit or advertised terms. Not every purchase expense automatically belongs in the rate. Remedies depend on the loan’s applicable regime: current provisions allow a court-determined proportionate loss of interest, considering borrower prejudice. An alleged error therefore does not automatically cancel all interest.

  • Complete offer and cash flows
  • Establish required fees
  • Proportionate remedy
  • Official texts cited
  • Sources checked on
  • Drafted with AI assistance, our method

General legal information with official references and dated checks. It is not personalised advice: for a decision that commits you, have your situation checked by a qualified professional.

Julie by AlphaDeep

Illustrative conversation
Example question

Does every notarial cost belong in APR?

Julie Illustration

No. Examine its nature and exclusions; R314-4 distinguishes property-transfer costs.

Read the references

Let’s connect the disputed cost with offer conditions before considering remedies.

French law

3 free questions at signup. Avoid names and sensitive information.

Answer

Which costs should be examined?

L314-1 concerns borrower-paid costs known or determinable at offer or amendment date that condition the credit or advertised terms. Distinguish required fees from genuinely optional services; an invoice alone is insufficient.

Code de la consommation, article L314-1

Comparison
A paid cost is not a recalculated rate
PointEvidence
RequirementOffer, condition or lender correspondence
Amount and dateInvoice and schedule
Requested remedyApplicable regime and prejudice

Code de la consommation, article L314-1Code de la consommation, article L341-48-1Code de la consommation, article R314-4

Challenging an incorrect French mortgage APR: Complete offer and cash flows, Establish required fees, Proportionate remedy
Challenging an incorrect French mortgage APR
Answer

Are insurance, brokerage and security always included?

R314-4 includes them when required for the credit or advertised terms. It also distinguishes certain account and valuation costs. The cited version applies through 19 November 2026: recheck the text for later files.

Code de la consommation, article R314-4

Answer

Which data is needed for recalculation?

Gather amounts and dates of drawdowns, repayments, charges, insurance and amendments. Adding fees is not an APR calculation: cash-flow timing matters. The worksheet isolates a disputed cost for full verification.

Code de la consommation, article L314-1Code de la consommation, article L314-5

The law

What does the governing text say about an apr error?

le prêteur peut être déchu du droit aux intérêts dans la proportion fixée par le juge, au regard notamment du préjudice pour l'emprunteur.

Erreur de TAEG et déchéance judiciaire proportionnée du droit aux intérêtsIn force since 19 July 2019Read on Légifrance

In plain English: Cost inclusion has specific conditions; the cited loss-of-interest remedy is proportionate and judicial.

Tool

How can a potentially omitted cost be documented?

The example isolates €2,400 of insurance without claiming to recalculate the rate.

julie://tool/registreNothing leaves your browser

Fields stay on this page. The Julie button sends your worksheet when you choose to use it.

Fictional example · Your preparation worksheet

Connect the cost, its mandatory nature, knowledge at offer date and the presented calculation. An isolated amount cannot determine corrected APR.

Cost to analyse
Insurance described as compulsory: €2400
  1. Retain offer, amendments, repayment schedule and the stated-rate calculation.
  2. Document known or determinable costs and why they were required.
  3. Have the complete calculation and law applicable to the loan date checked.
  4. Request a reasoned response without unilaterally stopping or reducing instalments.

This record does not calculate APR or order loss of interest. Calculation needs complete cash flows and dates.

Answer

Does an error remove all interest?

No. L341-48-1 provides for loss of interest in a proportion set by the court, considering prejudice. L341-34 also needs examination according to the alleged mortgage-offer defect. Older loans require their own temporal analysis.

Code de la consommation, article L341-48-1Code de la consommation, article L341-34

Answer

Should repayments continue during the dispute?

Do not convert your own calculation into unilateral instalment reductions. Even after judicial loss of interest, capital and surviving interest remain due; the provision governs crediting or repayment of affected interest. Have claims and amounts examined.

Code de la consommation, article L341-48-1

Frequent questions

What else should you know about an apr error?

Does every notarial cost belong in APR?

No. Examine its nature and exclusions; R314-4 distinguishes property-transfer costs.

Code de la consommation, article R314-4

Can one isolated cost determine corrected APR?

No. All relevant cash-flow amounts and dates are needed.

Code de la consommation, article L314-1

Do pre-July-2019 loans automatically follow these remedies?

No. Check temporal applicability.

Code de la consommation, article L341-48-1

Does Julie decide loss of interest?

No. She helps organise evidence; the cited remedy is determined by the court.

Code de la consommation, article L341-48-1

Sources

Which sources explain an apr error?

  1. Code de la consommation, article L341-48-1Légifrance / DILA
  2. Code de la consommation, article L341-34Légifrance / DILA
  3. Code de la consommation, article L314-1Légifrance / DILA
  4. Code de la consommation, article L314-5Légifrance / DILA
  5. Code de la consommation, article R314-4Légifrance / DILA
  6. Mortgage offer and total-cost explanationsService Public / DILA

Texts cited last checked: 19 October 2026