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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Disclaimer, accuracy & illustrative content

Use this page to understand what you can rely on today, what is product storytelling, and where you must verify with HMRC or a professional.

Last updated: 16 April 2026

What is intended to be factual / careful

  • HMRC references we surface (for example simplified mileage pence-per-mile) are copied from official HMRC material for the purpose of helping you find the same numbers you would use on GOV.UK. Rates and rules change; we may not update instantly—always cross-check the live HMRC page.
  • Form behaviour such as validation, saving rows, and period dates reflects how we intend the product to work technically. That does not mean the submission has legal effect until a compliant filing path exists.

What is illustrative or demo-only

  • Tax calculator outputs are estimates using simplified bands and assumptions (see the calculator footer). They are not a Self Assessment calculation and do not include every adjustment (loss relief, PA taper, pensions in full complexity, student loans in all cases, etc.).
  • “Submit monthly return” in the demo triggers a browser console.info log and an alert. No return is filed with HMRC from this demo.
  • Landing copy (including phrases like “MTD compliant” or “submit direct to HMRC”) describes product intent and must be read together with this disclaimer until a dated release explicitly states live integrations and certifications.
  • Subscription tiers on the home page (Starter / Standard / Pro by income streams) are indicative until checkout and contracts exist.
  • Account access uses Clerk for sign-in and sign-up. Some product features (for example live HMRC filing) remain in development — see sections above.

Your records

You remain responsible for keeping adequate business records under HMRC rules. SelfSubmit does not replace your statutory duties.

Third-party links

We may link to GOV.UK, ICO, or other official sites. We are not responsible for their content or availability.

Liability

To the extent permitted by law, SelfSubmit and its operators exclude liability for loss arising from reliance on illustrative or out-of-date information on this demo site. Our Terms of use will set out the full legal position for a future commercial service.