Thanks for being an early TinyTax user!
We introduced paid subscriptions in November 2025, and you've enjoyed free access since then. From now on, you'll need a subscription to file new returns.
Your past submissions remain accessible.
Solo: £40/year (1 company)
Portfolio: £50/year (unlimited companies)
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We've identified and fixed the bug that was causing the "session data missing" error. The issue was affecting new users trying to save their progress on the submission form.
This is now resolved. Please feel free to try again - your drafts will save correctly and appear on your dashboard when you log back in.
Do let me know if you have any questions or run into any other issues.