The biggest change to self-employed tax in a generation is already live. Here is what it means — in plain English.
HMRC didn't ask if you were ready.
On 6 April 2026, the way self-employed people and landlords report tax changed for the first time in a generation. Not a tweak. Not a new form. A different rhythm entirely.
It's called Making Tax Digital for Income Tax. And if it applies to you, your first deadline is 7 August 2026.
That's weeks away, not months.
For twenty years, self assessment worked like this: do what you like all year, then face one painful reckoning every January.
That world is ending. Under MTD, you must do three things differently:
The test is your gross income from self-employment and property combined — turnover, not profit. And HMRC looks backwards, at the tax return you've already filed:
Read that first line again. A landlord with £22,000 of rent and a side business turning over £29,000 is over the line. Combined. Most people caught by this don't feel like "big businesses". That's exactly why they'll be caught unprepared.
HMRC is being gentle — on paper. For your first 12 months, late quarterly updates won't earn penalty points.
Here's the trap: gentle deadlines build sloppy habits. The businesses that treat year one as optional will hit year two — when points and fines are real — with a backlog, bad records and no rhythm.
The grace period isn't a pass to ignore MTD. It's a free practice season. Use it like one.
Here's what twenty years in this profession has taught me: financial systems don't punish the dishonest half as often as they punish the unprepared.
MTD will be a non-event for people who get organised early. It will be expensive and stressful for people who don't. Same rules. Same deadlines. The only difference is who understood the system before it arrived.
Be in the first group.