Booking.com 2026: How to Add CWTON Number and Keep Your Listing

Booking.com and the New Regulations - How to Update Your Host Profile Step by Step

Booking.com is the largest booking platform in Poland and Europe. Over 60% of short-term rental bookings in Polish cities go through this service. EU Regulation 2024/1028 has applied since May 20, 2026, but in Poland its practical effects depend on the national implementing act (draft UC135), which has not yet been passed, and on the CWTON system, which has not yet gone live. In this article we explain what Booking.com will actually change, when that will happen, and how to prepare your property profile so you avoid a scramble once the national system finally launches.

How Booking.com Is Implementing EU Regulation 2024/1028

Booking.com is one of the platforms the regulation directly obligates. Ultimately the service is to require a registration number from hosts, verify its accuracy against the national register (in Poland, CWTON), and report reservation data to Polish authorities. The key caveat: these obligations can only work once a national register exists for the platform to verify numbers against. In Poland there is no such register yet, so the number field stays optional and listings without a number are not removed.

Booking.com has started preparing for the regulation's implementation ahead of time. The Partner Hub panel already features sections related to regulatory compliance, and the platform sends notifications to hosts in countries approaching the implementation deadline.

It's worth knowing that Booking.com has experience implementing similar regulations in other countries. The registration system is already operational in France, Spain, the Netherlands, Portugal, and many regions of Italy. The Polish implementation is based on the same mechanisms.

What Will Change on Booking.com Once the National System Launches

• CWTON registration number will appear as a field in the property profile (optional today, because there is no register)
• Number verification - Booking.com will only be able to check the number against the CWTON database after it goes live
• Reservation data will be shared with Polish authorities as required by the regulation
• Notifications and alerts - the platform will inform hosts about missing regulatory data

Where to Add the CWTON Registration Number - Step-by-Step Guide

Step 1: Log in to Partner Hub

Go to admin.booking.com and log in with your credentials. Partner Hub is the property management panel on Booking.com - this is where you make all changes to property profiles, pricing settings, and reservations.

Step 2: Select the Property

If you manage multiple properties, select the one for which you want to add the registration number. Each property requires a separate CWTON number - the number is assigned to the property, not to the host.

Step 3: Go to Property Details

In the Partner Hub side menu, find the section for property details. On Booking.com, this section may have different names depending on the panel version. Look for options like: Property details, Property info, Property profile, or General info.

Step 4: Find the Registration Number Field

In the property details section, you should see a field labeled Registration number, License number, or CWTON number. This field may be in a subsection called Legal information or Regulatory compliance.

If the field isn't visible in your panel yet, that's normal - Booking.com hasn't activated this feature for properties in Poland, because the national CWTON register isn't operational. The field will only appear once Polish rules are implemented and the system goes live. Check the panel occasionally, but nothing urgent hinges on it today.

Step 5: Enter the CWTON Registration Number

Enter the exact registration number you received from the CWTON system. Make sure the number is correct - Booking.com will verify it against the CWTON database. An incorrect number will result in rejection and the need for correction.

Step 6: Save Changes

After entering the number, click the Save or Update button. Booking.com may display a confirmation or information about ongoing verification. The verification process with the CWTON database may take from a few hours to a few business days.

Step 7: Check Verification Status

After saving, return to the property details section and check the registration number status. Possible statuses include: Pending verification, Verified, Rejected. If the number was rejected, check whether you entered it correctly and whether it's active in the CWTON system.

Registration Number Verification

Ultimately Booking.com is to verify registration numbers automatically: connecting to national register databases (in Poland, CWTON) and checking whether the number provided is valid, active, and assigned to the property at the given address. In Poland this mechanism will only work once the CWTON register goes live - for now there is no database for the platform to verify data against.

What the verification checks:

• Number existence - whether such a number exists in the CWTON database
• Number activity - whether the registration hasn't been withdrawn or suspended
• Address match - whether the property address in CWTON matches the address in the Booking.com profile
• Host data match - whether the owner's data in CWTON corresponds to the data in the Booking.com partner profile

If the verification detects discrepancies, Booking.com may request clarification or data correction. In extreme cases - with repeated issues or suspicion of providing a false number - the platform may suspend the listing.

Data Sharing - What Booking.com Reports to Authorities

EU Regulation 2024/1028 requires platforms to share data with relevant national authorities. Booking.com must regularly provide the following information:

• Host identification data - name, surname, address, tax ID (if applicable)
• Property data - address, CWTON registration number, property type
• Reservation statistics - number of reservations in a given period, number of overnight stays, number of guests
• Revenue - total reservation value (excluding platform commission)

Under EU Regulation 2024/1028 this data is provided to the designated national authority once a month, while smaller platforms (small and micro) provide it once per quarter. Data may be shared with local governments in aggregated form.

What does this mean for you as a host? Above all, the tax office will have access to precise data about your Booking.com revenue. Hiding income from the tax authorities will become virtually impossible.

Tax Reporting - Booking.com and DAC7

Independently of Regulation 2024/1028, Booking.com is subject to the DAC7 directive, which requires reporting seller incomes to tax authorities in EU countries. Since 2024, Booking.com has been reporting data of Polish hosts to Polish tax authorities.

In practice, this means double reporting: once under DAC7 (tax data) and once under Regulation 2024/1028 (accommodation activity data). The most important consequence for hosts: you must file your taxes honestly, because authorities have full visibility into your platform revenue.

What Booking.com Reports Under DAC7

• Host identification data (name, surname, address, tax ID, date of birth)
• Bank account number where funds are paid out
• Total revenue in a given calendar year
• Number of transactions (reservations)
• Commissions charged by the platform

Managing Multiple Properties on Booking.com

If you rent more than one property, you need to make sure each one has the correct CWTON registration number assigned. On Booking.com, each property is a separate item in Partner Hub.

How to Manage Multiple Registration Numbers

1. Register each property in CWTON - a separate registration for each address. One host can have multiple registration numbers
2. Assign numbers to the correct profiles on Booking.com - make sure the CWTON number for the apartment on Florianska Street isn't assigned to the apartment on Grodzka Street
3. Keep a mapping table - a simple list: property address, CWTON number, Booking.com property ID. This helps avoid mistakes
4. Check verification statuses for each property separately

Partner Hub - Features for Hosts With Multiple Properties

Booking.com Partner Hub offers features that make managing multiple properties easier. The dashboard shows an overview of all properties, their statuses, ratings, and reservations. The multi-property feature lets you switch between properties without logging out. Summary reports give you a revenue and statistics overview for all properties at once.

If you manage more than 5 properties, consider using a channel manager (e.g., Beds24, Cloudbeds, SiteMinder) that synchronizes data between Booking.com and other platforms and centralizes management in one place.

Common Problems and Solutions

Problem: I Don't See a Registration Number Field in Partner Hub

That's normal. The registration number field for properties in Poland will only appear once the national CWTON system goes live, and that system doesn't exist yet. Until then the number isn't required, and the missing field doesn't affect your listings' visibility.

Problem: Registration Number Was Rejected

Check that the number is entered correctly (no spaces, correct capitalization). Verify that the number is active in CWTON. Make sure the property address on Booking.com matches exactly with the address in CWTON (watch for differences in street spelling, unit numbers).

Problem: I've Heard Listings Without a CWTON Number Disappear - Is That True?

Not in Poland. As long as there is no national CWTON register, platforms have no way to verify numbers, so they don't remove Polish listings on that basis. Once the system launches, you'll add the number in Partner Hub - we'll publish detailed instructions then. For now, focus on preparing your property documentation.

Problem: Booking.com Requires Documents I Don't Have

The platform may request additional documents confirming your right to manage the property (rental agreement with subletting permission, ownership deed) or confirmation of CWTON registration. Prepare these documents in advance to avoid delays.

Problem: Data in CWTON and on Booking.com Don't Match

Discrepancies in address, name, or host data between CWTON and Booking.com may block verification. Standardize the data in both systems - use exactly the same address spelling and the same personal details.

Booking.com vs. Other Platforms - Implementation Comparison

Booking.com isn't the only platform that must implement the regulation. It's worth comparing the approaches of different services.

Airbnb

Airbnb has experience implementing regulations in many countries. The platform already required registration numbers in Paris, Barcelona, Amsterdam, and dozens of other cities. The process of adding a number on Airbnb is similar - through the host panel in the property details section.

Vrbo

Vrbo (part of the Expedia group) implements regulations similarly to Booking.com. The registration number field appears in the legal information section of the property profile.

Noclegi.pl

The Polish platform Noclegi.pl will need to implement the same mechanisms. As a smaller platform, it may have a less automated verification process.

Prepare Now - So You're Not Scrambling When the System Launches

Registering with CWTON is impossible today, because the system doesn't exist. But when it launches it may be overloaded, and verifying data will take time. So it's worth putting in order now what you can:

1. Register the property in your municipality's register - this is a real obligation today (Article 39(3) of the Act on Hotel Services)
2. Tidy up your property data on Booking.com - the address, host data, and property type should be consistent so future verification goes smoothly
3. Prepare documentation - house rules, GDPR privacy notice, fire safety documentation (remember that smoke detectors are mandatory from June 30, 2026)
4. File your taxes honestly - Booking.com data reaches the tax office anyway via DAC7
5. Monitor communications from the Ministry of Sport and Tourism and Booking.com - you'll learn when the national system actually launches

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