Professional subletting in France: the 2026 legal rules

Professional subletting is legal in France. It rests on three cumulative conditions set by article 8 of the act of 6 July 1989: the landlord's written consent, a sublet rent per square metre that does not exceed the head rent, and disclosure to the subtenant. Without that written consent, sublet income belongs to the owner.

Yes, and general French contract law is actually favourable to it. Article 1717 of the Civil Code states the principle: a tenant has the right to sublet, and even to assign the lease, unless that right has been withheld. Outside special regimes, subletting is allowed by default and it is the prohibition that must be written into the lease.

Residential leases escape that principle. Article 8 of act no. 89-462 of 6 July 1989 reverses the rule: the tenant may not sublet without the landlord's written consent. This is the provision that governs almost every situation where a private individual rents a flat and wants to hand it to an operator.

Two regimes therefore coexist, and knowing which one applies determines everything else:

• A residential lease under the 1989 act (the tenant's main home, furnished or unfurnished): subletting is prohibited without written consent, and the price is capped.
• A lease outside the 1989 act — typically a civil-law lease signed with a company that does not live in the property: article 1717 of the Civil Code applies again, so freedom of contract governs, subject to what the lease itself provides.

Article 8 is explicit: the landlord's consent must be written and must cover the rent. A verbal agreement, an ambiguous text message or years of tolerance do not amount to authorisation. This is where most disputes start, because a landlord who let it happen changes his mind, or because the property is sold and the buyer has tolerated nothing at all.

In practice the authorisation has to be precise enough to be enforceable:

• the identity of the landlord, the head tenant and the property concerned,
• express permission to sublet, furnished or unfurnished, as a main residence or as a short-term rental depending on the plan,
• the authorised sublet rent, or at minimum how it is calculated,
• the duration of the authorisation and what happens to it when the head lease is renewed.

Article 8 again: the sublet rent per square metre of habitable surface may not exceed the rent paid by the head tenant. The calculation is made per square metre, not in absolute terms. That is what makes subletting part of a property possible, and what prevents anyone from building a margin on the price per square metre.

This cap explains why a professional operator does not build its model on a standard residential lease. On that ground the margin is capped by law. The economics of professional subletting rest on a different contractual regime, and on the value added by operating the property — not on a spread in rent per square metre.

The head tenant must hand the subtenant the landlord's written authorisation and a copy of the head lease. Not a formality: it tells him his right of occupation depends on a contract he is not party to, and that may end before his own.

This is where French law is at its harshest, and least understood. In a ruling of 12 September 2019 (appeal no. 18-20.727), the third civil chamber of the Cour de cassation held that sublet income received without the landlord's authorisation constitutes civil fruits belonging to the owner by accession, under articles 546 and 547 of the Civil Code. The case involved a flat let short-term without consent.

The consequence is severe. The tenant at fault does not merely lose his margin: he must hand over everything he collected, with no set-off against the rent he paid over the same period. The owner therefore keeps his rent and takes the sublet income as well.

• Repayment of sublet income to the owner over the period not time-barred.
• Termination of the lease for breach, with eviction at the end of it.
• Damages if the owner proves a separate loss.
• For short-term rentals, this can stack with municipal penalties for change of use or failure to register.

This question comes before all others: the head lease regime determines what is permitted, how long the commitment runs and how it can be exited. Four qualifications occur in practice.

On commercial leases, article L.145-31 of the Commercial Code is unambiguous: unless the lease provides otherwise or the landlord agrees, any total or partial subletting is prohibited. Where authorised, the owner must be called to the deed. An operator neglecting that formality is exposed to a head-on challenge.

No form is imposed. The choice comes down to three concrete trade-offs, each with a cost worth examining before anyone picks a company name.

• Liability: a company limits personal exposure, but landlords and banks often ask the director for a personal guarantee, which cancels the benefit.
• Tax: corporate versus personal income tax, the gap plays out on distribution policy and reinvestment pace, not on a headline rate.
• Credibility: an owner signs for several years. Filed accounts, sensible capital and professional liability cover weigh more than a brochure.

One point comes up every time: insurance. A private homeowner policy does not cover short-term rental operation, and the operator's own policy must be declared for the actual use. An inaccurate declaration is paid for when a claim occurs.

This is the most debated point in the sector, and it should be presented as it is: unresolved. Act no. 70-9 of 2 January 1970, known as the Hoguet act, requires a professional licence from anyone who habitually carries out, or assists in, transactions relating to property belonging to others.

• Article 1 covers, among other things, the purchase, sale, search, exchange, letting or subletting, seasonal or not, furnished or unfurnished, and property management.
• Article 1-1 states that letting or subletting is deemed to be a property administration activity when it is ancillary to a management mandate.

Professionals draw two opposite readings from these texts. Neither is absurd, and neither is confirmed by a published administrative position expressly addressing subletting operators.

On tax, subletting is a useful exception to know. Income from subletting falls under bénéfices industriels et commerciaux — business income — whether the premises are let furnished or unfurnished, and not under property income. The French tax authority sets this out in its official doctrine, reference BOI-BIC-CHAMP-40-20.

The logic holds: a sublessor derives income not from ownership but from exploiting a personal right, his lease. The alternative classification as non-commercial profits is sometimes raised for unfurnished premises; that is a point to settle with an accountant.

These thresholds, revised by the Le Meur act, change the picture: an unclassified rental above €15,000 of receipts moves to the actual-expenses regime. That is not bad news. Real costs and depreciation become deductible, and taxable profit is often lower than under a 30% flat allowance. The official classification becomes a genuine tax lever again.

Act no. 2024-1039 of 19 November 2024 rewrote the rules for short-term rentals. They bind the operator — so a subletting company as much as an owner.

1. 01Since 20 May 2026, registering through the national online service is compulsory in every French municipality, not only in those that had introduced it.
2. 02Failure to register carries a civil fine of up to €10,000, rising to €20,000 for a false declaration.
3. 03The main-residence cap remains 120 nights a year, but a municipality may lower it to 90 by council decision. Lyon did so on 1 January 2026.
4. 04Change of use is governed by article L.631-7 of the construction and housing code, on pain of a civil fine of up to €100,000 per dwelling.
5. 05An energy certificate rated A to E is required until 31 December 2033; from 1 January 2034 the minimum becomes D.

None of this can be contracted around: the registration number, the change-of-use authorisation and the energy certificate attach to the property, not to whoever operates it. A lease that does not say which party carries out these steps and bears their cost is an unfinished contract.

In a professional subletting arrangement the owner does not receive a share of variable revenue: he receives a fixed rent, paid by a company that carries the operating risk in his place. That is the only real benefit of the model for him, and it deserves to be described without packaging.

• What he gains: stable income independent of occupancy, no management, and one counterparty answerable for the property.
• What he gives up: the upside of strong seasons. If the property outperforms, the gain stays with the operator — the price of the risk it took.
• What he must check: the financial standing of the signing company, the make-good clause, the insurance, and the fate of the lease if operating becomes impossible for regulatory reasons.

A guaranteed rent is not a performance, it is a transfer of risk. On a well-located property in a tight market, an active owner can do better himself. On a seasonal one, or for an owner living far away, the guarantee is often worth the spread. An honest operator frames it that way instead of promising both.