SelfSubmit is designed to help you stay compliant with HMRC Making Tax Digital requirements. You remain responsible for ensuring the information you submit is accurate.

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HMRC Online Services

Government Gateway unlocks your personal tax account, payment history, MTD authorisations, and messages from HMRC — essential for digital tax management.

  • One account for authorising software and viewing liabilities
  • Two-step verification strongly recommended
  • Agents need separate authorisation to act for you

What it is

HMRC Online Services (via Government Gateway) is where you access your personal tax account, authorise MTD software, view payments, and check messages from HMRC.

You can view payments on account, check coding notices, and update contact details online. Lost credentials can be recovered through HMRC’s process — allow time before deadlines.

Who it applies to

Everyone filing Self Assessment or using MTD needs online access unless they use an agent or have an exemption.

What you need to do

  • Create or recover your Government Gateway user ID.
  • Add two-step verification for security.
  • Authorise each software product you use for MTD.

Key points

  • Agents can act for you if you grant appropriate authorisation.
  • Never share your credentials with untrusted third parties.

Common mistakes to avoid

  • Letting an agent authorise without understanding what they can see
  • Using weak passwords without 2FA on tax accounts
  • Missing HMRC secure messages in email spam

How SelfSubmit helps

SelfSubmit complements HMRC online services — we organise your records; your Government Gateway account remains where you authorise submissions and view HMRC’s tax calculation.

Further reading