Booking.com 2026: New Host Panel and Mandatory CWTON Number

Booking.com and the Registration Number in 2026 - What You Really See in the Extranet

Plenty of myths are circulating about what Booking.com has supposedly rolled out for Polish hosts: mandatory fields, automatic validation, sanction schedules. We checked the facts. As of July 2026, the registration number field in the Extranet is optional, no Polish listing has been blocked, and the CWTON register that Booking would supposedly verify against has not been launched.

Key takeaways

• Booking.com's Extranet has a licence/registration number field - for Polish properties it is optional and subject to no verification
• The CWTON system is not operating: there is no number format, no API, nothing to compare data against
• Booking has not published any sanction schedule and is not blocking Polish listings that lack a number
• The platform obligations from EU Regulation 2024/1028 will only genuinely kick in after the Polish register launches (no earlier than 15 October 2026)
• What you can do today: register with the municipal records, install smoke detectors (mandatory from 30 June 2026), get your documentation in order

What You Actually See in the Booking.com Extranet

For years Booking.com has had a place in the host panel (the Extranet, admin.booking.com) for a property's licence or registration number. This field is used in countries that operate national or municipal short-term rental registers - for example France, Portugal, or Catalonia. There, the platform asks hosts for a number because a register exists that issues one.

For properties in Poland the situation is different:

• The licence/registration number field is optional. You can leave it empty and nothing happens - the listing works normally.
• There is no validation. Booking does not check the entered value against any Polish database, because no such database exists.
• There are no warning banners, calendar blocks, or visibility demotions tied to a registration number for Polish properties.
• There is no "Polish number format". No format along the lines of "PL-XX-NNNNNN" exists - the Polish register has not been launched, so it has not issued a single number.

Why Booking Enforces Nothing

EU Regulation 2024/1028 on short-term rental data has applied since 20 May 2026. It places obligations on platforms concerning the collection of registration numbers and the transmission of booking data to a national single digital entry point. But those obligations only make sense once a member state launches a register and an entry point.

In Poland:

• The implementing act has not been passed. The government draft UC135 (an amendment to the Act on Hotel Services) and a parliamentary draft (print no. 2353) are still in the legislative process.
• The CWTON system (the Central Register of Tourist Accommodation Facilities) has not been launched. Registration is physically impossible - there is no portal and no application form.
• Deputy Minister Ireneusz Raś confirmed on 15 April 2026 that Poland is using the transition period until 15 October 2026. Some sources indicate host registration may realistically start only in the first quarter of 2027.

Booking.com cannot verify numbers against a register that does not exist. That is why, for Polish properties, it simply requires nothing - and will keep requiring nothing until CWTON launches.

What Booking.com Does NOT Have (Despite What Some Websites Claim)

• There is no integration with any "Ministry of Sport and Tourism API" - no such API exists
• There is no sanction schedule (visibility demotion, booking blocks, listing deactivation) - Booking has published nothing of the sort for Poland
• Genius status is not tied to a registration number - Genius depends on ratings and activity, not on a registration that cannot be completed
• There are no lists of "other Polish records" in the form of alleged municipal registers - such registers do not exist
• Booking does not collect any "city tax" in Poland. The local tourist tax, where it applies, is collected from guests by the host under a municipal resolution - the platform does not act as an intermediary in this

What to Do Today - a Host's Real Obligations in 2026

Instead of hunting for non-existent fields in the Extranet, take care of what actually applies:

1. Register the property in the municipal records. Registration in the municipal records of other facilities providing hotel services (Articles 38-39 of the Act on Hotel Services) is a statutory obligation that already applies today, in every municipality. It is the first step to legal rental.
2. Install smoke detectors. Since 30 June 2026, smoke detectors are mandatory in premises where hotel services are provided, including short-term rentals (Regulation of the Minister of Interior and Administration of 21 November 2024). Where fuel is burned (a boiler, fireplace, or gas water heater), a carbon monoxide detector is also required.
3. Get your documentation in order. House rules, a GDPR notice for guests, an emergency contact list, documents confirming your legal title to the property - all of this will help both during inspections and at future registration.
4. Settle your taxes honestly. Booking.com reports Polish hosts' revenue to the tax administration under the DAC7 directive - this already works now, independently of CWTON.

What Will Change When the CWTON Register Launches

Once the act is passed and the system launches, the following sequence can be expected:

• Hosts will be able to register and will receive registration numbers for their properties
• Booking.com will activate the number requirement for Polish properties - the licence/registration field will become mandatory, as in countries with operating registers
• Platforms will start transmitting booking data to the national entry point in line with Regulation 2024/1028
• Only then will real consequences appear for listings without a number - with transition periods and notices from the platform, not overnight

We will describe the specific procedures (where to enter the number, how verification will look) once Booking actually makes them available. Everything you can read today about "steps for entering the CWTON number in the Extranet" is speculation - those steps do not exist yet.

Frequently Asked Questions

Do I have to enter anything in the licence/registration field in the Extranet today?

No. For Polish properties the field is optional. You have no CWTON number because the register is not operating - leave the field empty and wait for official instructions once the system launches.

Will Booking block my listing after some deadline?

As of today there is no deadline and no sanction schedule. The platform obligations will only take effect after the Polish register launches - and then hosts will get time to register and complete their data.

How will I know when CWTON goes live?

Follow the announcements from the Ministry of Sport and Tourism and our blog. We describe the current legislative state in What Really Changes on 20 May 2026.

Is Booking already passing my data to the authorities?

Yes - but on a different basis. Under the DAC7 directive, Booking.com reports data on Polish hosts' revenue to the tax administration. Reporting of booking data under Regulation 2024/1028 will begin once the national entry point is launched.

What about the local tourist tax - does Booking collect it?

No. The local tourist tax (where a municipality has introduced it by resolution) is collected from guests by the host and remitted to the municipality. Booking.com does not collect any city tax in Poland on hosts' behalf.

Summary

Booking.com has not rolled out any registration number verification system for Poland - because there is nothing to verify. The licence/registration field in the Extranet is optional, and the real platform obligations will only take effect after the CWTON register launches (no earlier than 15 October 2026). Your real tasks today are the municipal records, smoke detectors, and order in your documentation and taxes.

Don't want to search for templates and regulations on your own? The HostReady Package includes complete documentation, ready-to-use templates, and checklists - everything prepared for legal short-term rental and future CWTON registration, ready to use right after purchase.

--- *Legal note: The content on this page is for information purposes only and does not constitute legal, tax, or binding interpretation of the law. Legal status: July 2026. EU Regulation 2024/1028 has applied since 20.05.2026, but the practical obligations for Polish hosts and platforms depend on the adoption of the national implementing act (draft UC135) and the launch of the CWTON register. Use of this content is at your own risk. For complex matters, consult a legal counsel or tax advisor.*