If you run a website or app in the UK that lets people sell goods or services, HM Revenue & Customs (HMRC) may expect you to report information about those sellers – and you may first need to register as a digital platform operator. HMRC has published guidance setting out exactly who is caught by these rules and what they must do.
The obligation stems from international reporting rules that HMRC now applies in the UK. In short, if your platform connects sellers with buyers, you might have to collect details about those sellers and pass them to HMRC. Getting the digital platform operator registration wrong can leave you facing penalties, so it is worth checking your position early.
Who needs to register as a digital platform operator?
According to HMRC, the rules apply to businesses in the UK that operate a digital platform allowing users to sell goods or services to other users. That covers a broad range of online marketplaces and apps.
- Platform operators: Businesses that run a website or app connecting sellers with customers.
- Reportable activities: Platforms that let users sell goods or provide services through the platform.
- UK link: The guidance is aimed at operators based in or connected to the UK.
HMRC’s guidance does not, in this excerpt, list every exemption or threshold. If your platform’s exact position is unclear, you should read the full guidance rather than assume you are exempt, because the definitions can be wider than operators expect.
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The core duty is to tell HMRC about the sellers active on your platform. In practice, this means collecting and verifying information about those sellers and their income, then submitting it to HMRC in the required format.
The purpose is straightforward: HMRC wants visibility of income earned by people selling goods and services online, so that the correct tax is paid. For example, someone renting out property or selling handmade items through a platform generates data that HMRC can cross-check against tax records.
HMRC’s published guidance is the authoritative place to confirm precisely what data you must gather and by when. The exact reporting deadlines and data fields are not reproduced in this summary, so check the official page for those specifics.
How do I check if I need to register?
HMRC provides a dedicated guidance page that walks operators through the decision. You can review it and act at:
- Official HMRC guidance: gov.uk/guidance/check-if-you-need-to-register-as-a-digital-platform-operator
The page is designed to help you work out whether your platform falls within scope. Because the rules turn on how your platform works and who uses it, the guidance is the clearest way to confirm your obligations before you register.
Why has HMRC introduced these rules?
These reporting requirements bring the UK into line with international efforts to make online income more transparent to tax authorities. As more people earn money through apps and marketplaces, HMRC needs reliable data to ensure that income is declared correctly.
For platform operators, this means the responsibility for collecting seller information sits with the business running the platform, not solely with individual sellers. In effect, platforms become an important link in HMRC’s data chain.
What should platform operators do next?
If you operate a digital platform in the UK, the sensible first step is to check your status against HMRC’s guidance rather than waiting to be contacted.
- Read the guidance: Visit the HMRC page to see whether your platform is in scope.
- Assess your sellers: Consider whether your users sell goods or services through your platform.
- Register if required: Follow HMRC’s process to register as a digital platform operator if the rules apply to you.
- Prepare to report: Set up systems to collect and verify the seller information HMRC needs.
Because the definitions are broad, even smaller platforms should not assume they fall outside the rules. Checking early gives you time to build the right processes and avoid last-minute compliance problems.
HMRC remains the definitive source on this topic. For the full, current detail – including any thresholds, exemptions, and deadlines not covered here – refer directly to the official guidance on gov.uk.
