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Find out what changes for Chamonix Valley owners already registered through Déclaloc.
Updated 13 October 2026
France is introducing a national registration system for holiday lets, with a new online service expected to launch in late 2026. For owners in the Chamonix Valley, the change will mean a further administrative step — including for properties already registered through Déclaloc.
If you rent out a chalet or apartment in Chamonix, Argentière, Les Houches, Servoz or Vallorcine, here is what to understand and how to prepare.
API Meublés is the government system that centralises holiday rental activity information supplied by rental platforms and other intermediaries. The new national registration service for owners will connect to this system.
The changes sit within a wider European framework for sharing short-term rental data with public authorities. This includes information such as nights booked, guest numbers and property listings. Registration remains organised at national or local level; there is no single international registration number for every holiday let across Europe.
For owners in France, the practical change is a national online declaration and a registration number for each holiday let. French legislation requires anyone offering a meublé de tourisme to register, including when the property is their main residence. These are furnished properties offered to visitors who do not make the accommodation their home.
The legislation set 20 May 2026 as the latest date for national registration to take effect. However, the government’s current operational timetable schedules the new online service for the fourth quarter of 2026, between October and December.
As of 13 October 2026, the DGE guidance does not specify a firm launch date or the exact transition deadline for existing registrations.
Owners with an existing municipal registration number will need to apply for a new number through the national service. The DGE says they will have a transition period of several months. After that period, old numbers will become invalid.
Applications will use an online form accessed through the DGE website. Owners will not need to create an API Meublés account.
Once your new number has been issued, the owner or the agency wouild need to check that it appears on every rental advertisement, including agency and booking-platform listings. French law requires the registration number to appear in offers of holiday accommodation.
In the Chamonix Valley, owners already have local obligations. The community of communes requires holiday lets to be registered through the valley’s Déclaloc service and sets out the applicable change-of-use authorisation requirements.
Its regulation covers Chamonix-Mont-Blanc, including Argentière, Les Houches, Servoz and Vallorcine. Since 1 May 2026, the local framework applies to both individual and company owners.
Obtaining a national registration number will not, by itself, confirm that a property meets the local conditions for holiday letting. Owners must also ensure that any required change-of-use authorisation is in place. A property that has been rented for years may still need its local permissions checked.
Before the national service opens, we recommend bringing your property’s records together:
Continue to follow the existing local procedures while preparing for the national transition. When the service opens, follow the published application instructions and confirmed deadlines.
Accurate registration matters. The Code du tourisme provides for administrative fines of up to €10,000 for failing to meet registration obligations, and up to €20,000 for false declarations or use of a false number. Owners should distinguish these statutory penalties from the transition arrangements announced for replacing existing numbers.
At Alpes Agency, we help owners navigate the practical requirements of letting a property in the Chamonix Valley. From understanding registration steps to identifying the documents needed for a change-of-use application, our local team can help you prepare. Find out more here.
If you are unsure about your property’s current registration or what the national changes mean for you, get in touch with Alpes Agency to discuss your next steps.
The national service is still being rolled out. Launch dates and transition arrangements should be checked against the latest government guidance before taking action.
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