Download for macOS 13+

Keep your spreadsheet; our app submits your quarterly updates and final declaration to HMRC.

ITSA MTD app icon HMRC MTD Ready logo

Get started

The app is available now on an invite-only basis.

We’re currently inviting early users to join the beta. Once accepted, you’ll receive a download link and personal support to get set up.

Requirements

  • macOS 13 Ventura or later
  • iPhone/iPad support coming soon
  • Spreadsheet with your income & expenses (Numbers, Excel)
  • HMRC sign-in (we’ll guide you for MTD ITSA setup)

To join the beta, you’ll also need to sign up for MTD this year (earlier than required).

What happens next?

  1. We’ll send you a beta build and quick-start instructions.
  2. Connect your HMRC account and confirm your obligations.
  3. Map your spreadsheet columns and submit a test update.
  4. Share feedback; we’ll help you get set up for real submissions.

Beta tester benefits

  • 1-to-1 support from the developer to guide you through submissions
  • Access to a specialised HMRC team if needed
  • Influence which features we prioritise next
  • Try MTD early in a no-penalty year

If you’re an accountant or agent, see agent features.