Digital Platform Reporting

A Practical Guide for Small Platform Founders

This guide is for founders running small or early-stage digital platforms. It explains when the UK digital platform reporting rules apply, what you need to do in practice, and where the risks sit if you get this wrong.

The rules are complex, but the intention is simple. HMRC wants visibility over income earned by sellers using digital platforms.

1. What is digital platform reporting?

If you run a digital platform, you may be legally required to:

• Collect information about sellers on your platform
• Check and verify that information
• Report seller income and activity to HMRC each year

These rules apply even if your platform is small, newly launched, or not yet profitable.

Official guidance:
https://www.gov.uk/guidance/reporting-rules-for-digital-platforms

2. What counts as a digital platform?

Your app or website is a digital platform if both of the following apply:

1. It connects sellers to customers to supply goods or services
   Examples include marketplaces, booking platforms, freelance platforms, short-term accommodation platforms, and delivery platforms.
2. You either:
   • Hold information about what sellers are paid
   • Can easily calculate what sellers are paid
   • Can obtain payment information from a third party, such as a payment processor

If your platform only advertises sellers and you cannot access or calculate payments at all, you may fall outside the rules. This requires careful assessment.

3. Who needs to register with HMRC?

You must register with HMRC if you operate a digital platform and any of the following apply:

• You are resident in the UK
• Your company is incorporated under UK law
• Your business is managed from the UK

Registration is required even if you later determine that you have no sellers to report.

Official registration guidance:
https://www.gov.uk/guidance/register-to-carry-out-digital-platform-reporting

4. Who does not need to register?

You do not need to register if you only:

• Sell on someone else’s platform
• Sell your own goods or services directly through your own website or app
• Operate as a sole trader selling your own services

These rules apply to platform operators, not sellers.

5. Are you a reporting platform operator or an excluded platform operator?

When registering with HMRC, you must register as either a reporting platform operator or an excluded platform operator. This is not optional and depends on whether you have reportable sellers.

Understanding this distinction is critical, as the obligations are very different.

Reporting platform operator

You are a reporting platform operator if:

• You operate a digital platform, and
• There are sellers using your platform whose activity must be reported to HMRC

In practice, this usually applies where:

• Sellers earn income through your platform, and
• That income is not fully excluded under the legislation

Most platforms that facilitate bookings, payments, or transactions between sellers and customers fall into this category.

If you are a reporting platform operator, you must:

• Collect seller information
• Verify seller information
• Report seller income and activity to HMRC annually

Excluded platform operator

You are an excluded platform operator if you operate a digital platform but do not have any reportable sellers.

This does not mean you can ignore the rules. You must still:

• Register with HMRC as an excluded platform operator
• Retain evidence explaining why your platform is excluded

Common situations where exclusion may apply include where:

• All sellers are government bodies
• All sellers are publicly listed companies
• All sellers are large entities that fall outside the scope of reporting
• The platform does not facilitate reportable transactions under the rules

Excluded status is narrower than many founders expect and must be justifiable.

How to assess whether your sellers are reportable

Ask the following questions:

1. Do sellers receive income through your platform?
   If sellers are paid, or you can calculate what they are paid, this strongly indicates reportable activity.
2. Are sellers individuals or small businesses?
   Individuals, sole traders, partnerships, and most small companies are reportable.
3. Are you facilitating the transaction?
   If your platform enables the sale, booking, or service delivery, HMRC is likely to treat you as a reporting platform operator.
4. Are payments visible or traceable to you?
   Holding payment data, processing payments, or accessing third-party payment data points towards reporting obligations.
5. Are all sellers clearly excluded under the legislation?
   Exclusions are limited. If unsure, HMRC expects you to assume sellers are reportable until proven otherwise.

Common misconceptions

• “We are too small to report”
  Size and turnover are irrelevant.
• “We do not process payments ourselves”
  You may still need to report if you can access payment data.
• “Our sellers handle their own tax”
  This does not remove your reporting responsibility.

Key takeaway

If your platform connects sellers to customers and income is earned through it, you are very likely a reporting platform operator.

6. When do you need to register?

You must register with HMRC by 31 January following the end of the reportable year.

The reportable year runs from 1 January to 31 December.

Late registration can result in penalties.

7. Due diligence obligations

If you are a reporting platform operator, you must carry out due diligence by:

• Collecting seller information
• Verifying seller information
• Identifying which sellers are reportable

You remain responsible even if you use third-party software or providers.

Official guidance:
https://www.gov.uk/guidance/collect-and-verify-digital-platform-seller-information

8. Information you must collect

Individual sellers

• Full legal name
• Home address including postcode
• Date of birth
• National Insurance number if UK-based
• Non-UK tax identification number and issuing country if applicable
• Rental property address if relevant

Entities

• Legal business name
• Main business address including postcode
• Relevant registration or tax identification numbers
• Rental property address if relevant

9. Timing and updates

• Seller information must be collected by 31 December of the reportable year
• Information can be reused if unchanged
• Primary addresses are valid for 36 months
• If information becomes unreliable, it must be re-collected and re-verified

You may restrict seller access if information is not provided.

10. Verification requirements

You must verify seller information using all data reasonably available to you.

You may face penalties if verification is not carried out correctly.

Further guidance: IEIM902400

11. Active and pre-existing sellers

• Active sellers are those paid during the year
• You may choose to verify only active sellers if HMRC is notified by 31 December
• Pre-existing sellers must be verified by the end of the second reportable year

12. Information you must report

You must report:

• Seller identification details
• Tax identification numbers if available
• Total amounts paid per quarter
• Fees, commissions, or taxes charged
• Number of transactions
• Payment account details if available

Amounts reported include payments credited even if services are not yet delivered.

13. How reporting is submitted

Reporting is submitted using XML files that meet HMRC’s digital schema and business rules. This is a technical process and often requires specialist support.

14. Key deadlines at a glance

• 1 January to 31 December
  Reportable year
• 31 December
  Deadline to collect seller data and notify HMRC of verification choices
• 31 January following the year end
  Registration deadline

15. Practical checklist for founders

• Have you assessed whether your platform meets the definition
• Have you determined reporting vs excluded status
• Have you registered with HMRC
• Do you collect and verify seller information
• Are updates and deadlines diarised
• Do you have a reporting process in place

Final note

Digital platform reporting is not optional if the rules apply, even at an early stage. Getting clarity early reduces compliance risk as your platform grows.

Key HMRC resources

• Reporting rules for digital platforms
  https://www.gov.uk/guidance/reporting-rules-for-digital-platforms
• Registering for digital Platform Reporting
  https://www.gov.uk/guidance/register-to-carry-out-digital-platform-reporting
• Collecting and verifying seller information
  https://www.gov.uk/guidance/collect-and-verify-digital-platform-seller-information

Disclaimer

This guide is provided for general information and guidance purposes only. It is intended to help platform founders understand the UK digital platform reporting rules at a high level, but it does not constitute tax advice, legal advice, or compliance advice.

The digital platform reporting legislation is complex and continues to evolve. Whether the rules apply to you, and how they apply, will depend on your specific circumstances, platform structure, seller base, and operating model.

You should not rely solely on this guide when making decisions or taking action. We strongly recommend that you:

• Review the official HMRC guidance directly
• Seek clarification from HMRC where appropriate
• Obtain professional advice tailored to your circumstances before registering, reporting, or making compliance decisions

No responsibility is accepted for any loss, penalties, or compliance issues arising from reliance on this guide without further clarification or advice.