Registration Number Requirement (Short-Term Rental Registration)

A registration number requirement is a rule obliging a short-term rental or small accommodation provider to register with a local or national authority, obtain a unique registration or licence number, and display that number on every listing and advertisement — including OTA listings. Platforms are increasingly required to collect the number, show it publicly, validate it against an official registry, and remove listings that cannot produce a valid one.

How it works

Schemes vary by jurisdiction but share a common shape:

1. The host or operator registers the specific unit with the municipality or national register, often proving ownership, permitted use, safety compliance and, in some cities, a night cap on letting.
2. The authority issues a registration number tied to that unit and address.
3. The number is entered into each OTA extranet and displayed on the listing.
4. The platform validates it, periodically or in real time, against the official register.
5. Listings with a missing, expired or non-matching number are suspended or delisted.

In the EU, Regulation (EU) 2024/1028 on short-term rental data collection moves this from a patchwork of city rules toward a harmonised model: member states operating a registration scheme must run it online, issue a unique number, and give platforms a route to verify it, with platforms required to make reasonable efforts to check numbers and to report activity data to authorities. National and municipal schemes — Amsterdam, Paris, Barcelona, Lisbon, New York City's Local Law 18, and others — continue to add their own caps and conditions on top.

Why it matters

For operators, the registration number has become a condition of distribution, not merely a compliance box. A unit without a valid number is not simply at legal risk — it is unsellable on the major platforms, and delisting typically happens with little notice and cancels forward bookings. Numbers are unit-specific and expire, so portfolio operators need a renewal calendar and a record of which number is loaded against which listing on which channel.

It also reshapes supply. Registration caps and eligibility conditions reduce the number of legal units in constrained markets, which tightens compression on peak dates and tends to support rates for compliant operators — while raising the value of the compliance itself as a competitive asset.

Related

• DAC7 (EU Platform Reporting Directive) — the parallel obligation on platforms to report host earnings to tax authorities
• DSA (Digital Services Act) — the broader platform accountability framework
• KYC for Hosts (Know Your Customer) — the identity-verification side of the same compliance push
• Tourist Tax (City Tax) — the other local obligation usually administered alongside registration
• Extranet (OTA Extranet) — where the registration number is entered and maintained per channel

This entry is general information about how registration schemes operate, not legal advice. Obligations differ substantially by jurisdiction and change frequently; operators should confirm current requirements with the relevant authority.