What’s changing for tax advisers
- From 18 May 2026, all tax advisers who interact with HM Revenue & Customs (HMRC) on behalf of clients must register under a new digital system. (gov.uk)
- Registration is free; HMRC will launch a streamlined online process replacing previous fragmented requirements. (gov.uk)
- The rollout is phased: the system opens 18 May 2026 and fully applies by 31 March 2027. (gov.uk)
- The requirement includes overseas advisers doing work for UK taxpayers. (gov.uk)
Why this matters
- For clients: more protection and confidence in advice, knowing their adviser is officially registered and accountable.
- For advisers: you’ll need to ensure compliance—sign up in time, maintain registration, keep up with requirements.
- For overseas providers: if you advise UK clients or interact with HMRC, expect to fall within the rules too.
What you need to do now
- Check whether your existing activities count as “interacting with HMRC” on behalf of clients. If yes, you must register.
- Use the interactive checker tool on GOV.UK to confirm your obligations. (gov.uk)
- Plan to migrate systems if you relied on older registration routes or informal mechanisms.
- For overseas advisers, assess whether existing communication with clients or HMRC triggers requirements.
Examples
- An independent tax agent submitting tax returns or liaising with HMRC appeals or enquiries on behalf of clients must register.
- An overseas digital adviser who drafts letters for a UK taxpayer or works with HMRC documentation will now need to register.
- An in-house tax adviser or corporate counsel acting solely in-house for their employer: if they do not deal with HMRC for external clients, check the rules—likely not applicable.
Risks if you don’t comply
- You may lose HMRC access (e.g., for submissions, appeals).
- Possible penalties or restrictions if you continue without registration.
- Reputation risk for unregistered and possibly unregulated advice.
Takeaway: Anyone being paid to deal with HMRC on behalf of clients—whether in the UK or overseas—must register under the new digital regime by phase-end, 31 March 2027, with initial go-live from 18 May 2026. Act now to stay compliant.