# Contact Making Tax Digital Calculator: Email Us About a Wrong Figure, Never Your UTR or NI Number

> Write to us about a figure that looks wrong, a calculator that doesn’t work or anything else on the site. Never send your National Insurance number, UTR or tax documents.

- Page: https://makingtaxdigitalcalculator.co.uk/contact/
- Published: 6 November 2026 (2026-11-06T17:31:32+00:00)
- Updated: 6 November 2026 (2026-11-06T17:31:32+00:00)
- Checked: 6 November 2026 (the newest day this page says its figures were checked)
- Published by: Piyush Choudhary (https://makingtaxdigitalcalculator.co.uk/about/#publisher)
- An independent Making Tax Digital calculator for UK sole traders and landlords: whether Making Tax Digital for Income Tax applies to you, from which April, and what it means. Not HMRC, and not a government website. Every figure is from GOV.UK, HMRC or legislation.gov.uk, with the day it was checked.

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[contact@makingtaxdigitalcalculator.co.uk](mailto:contact@makingtaxdigitalcalculator.co.uk)

## If a figure looks wrong

Tell us the page and the figure, and the GOV.UK page or the law that says otherwise if you have it. The [corrections page](/corrections/) says how we fix it.

## What never to send

Please never send your National Insurance number, Unique Taxpayer Reference, Government Gateway details, bank details or tax documents. We don’t need them for anything, and we can’t use them to help you.

## Questions about your own tax

We can’t advise on your own tax, and we can’t see what HMRC holds about you. For that, ask HMRC, or a tax adviser or accountant. If you don’t think you need to use Making Tax Digital for Income Tax, GOV.UK says to contact HMRC.

Source: [Find out if and when you need to use Making Tax Digital for Income Tax](https://www.gov.uk/guidance/find-out-if-and-when-you-need-to-use-making-tax-digital-for-income-tax) (GOV.UK). Checked 6 November 2026.

You sign up for Making Tax Digital on [GOV.UK](https://www.gov.uk/guidance/sign-up-for-making-tax-digital-for-income-tax), not through this site.

## Official pages this page cites

- [Find out if and when you need to use Making Tax Digital for Income Tax](https://www.gov.uk/guidance/find-out-if-and-when-you-need-to-use-making-tax-digital-for-income-tax)
- [GOV.UK](https://www.gov.uk/guidance/sign-up-for-making-tax-digital-for-income-tax)