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Support

Some things we can fix and some things only HMRC can. This is how to tell which.

Ask us

  • The software is not doing what you expect, or something looks wrong.
  • An import did not work, or a figure is not where you expected it.
  • You cannot sign in, or need to change who has access.
  • Something failed and you do not understand the explanation we gave.

Email [email protected].

Ask HMRC

  • Whether a specific figure belongs in a specific box.
  • A penalty, a payment, or how much is owed.
  • Signing up for Making Tax Digital, or leaving it.
  • Changing contact preferences, bank details or payments on account.
  • Anything about your agent services account or client authorisations.

Contact HMRC(opens in a new tab)

Accessibility

This software is built to meet WCAG 2.2 AA, with stronger contrast on money, deadlines and status. If something is hard to use with a screen reader, a keyboard, or at high zoom, tell us — we treat that as a fault, not a feature request.

Bastion Gateway is files company tax returns and confirmation statements.

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