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 hello@bastiongateway.com.
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.
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.