Guide · updated for 2026/27

Making Tax Digital for Income Tax, explained

Everything a sole trader or landlord needs to know about MTD ITSA — who it applies to, when, and what you actually have to do. No jargon.

This is general information, not advice for your specific situation — and the rules can change. Always check GOV.UK or get in touch for your own position. [CONFIRM all figures & dates against GOV.UK before publishing]

What is MTD for Income Tax?

Making Tax Digital for Income Tax Self Assessment (MTD ITSA) is HMRC's new way of reporting self-employment and property income. Instead of one Self Assessment tax return a year, affected taxpayers must keep digital records and send HMRC a summary every quarter, then a final declaration after the tax year ends.

The goal, according to HMRC, is to reduce errors and give people a clearer running picture of what they owe. In practice it means more frequent reporting — which is manageable with the right software and someone keeping an eye on the deadlines.

The short version: if you're self-employed or a landlord earning above the threshold, you'll be doing quarterly digital updates instead of a single annual return.

Who has to comply — and when

MTD ITSA is being phased in by income level:

It applies to individuals reporting self-employment and/or property income. It does not apply to limited companies — companies pay Corporation Tax, and MTD for Corporation Tax is a separate scheme that isn't live yet.

What counts towards the threshold

This catches a lot of people out: the threshold is based on your gross income (turnover) from self-employment and property combined — before you deduct any expenses. It's not your profit.

Example: £35,000 of self-employed turnover plus £20,000 of rent = £55,000 qualifying income. That's over the £50,000 line, even if your actual profit is much lower.

What you'll actually have to do

  1. Keep digital records of business and property income and expenses using HMRC-recognised software.
  2. Send quarterly updates — a running summary of income and expenses, four times a year.
  3. Submit a final declaration after the tax year, confirming the figures and any other income (this replaces the old Self Assessment return).
  4. Pay your tax by the usual deadlines — the payment dates aren't changing.

If you have both self-employment and property income, you'll generally report them as separate streams.

Who's exempt or excluded

How to get ready (the easy way)

You don't have to figure this out alone. As part of my fixed monthly plans I:

Your year-end final declaration / Self Assessment tax return is a separate fixed-price service, so you only pay for it when it's due. VAT returns and CIS are also available as add-ons.

Not sure where you stand? Book a free 15-minute call and I'll tell you straight whether you're affected and what to do next.
Call 01204 595911

Let's get you MTD-ready, the painless way

Fixed monthly fees, HMRC-recognised software, and a real person handling your deadlines.

Call 01204 595911