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MTD vs Self Assessment: what's actually changing?

Making Tax Digital doesn't change how much tax you pay — it changes how and how often you report it.

Plenty of landlords and sole traders hear "Making Tax Digital" and panic that their tax is going up. It isn't. MTD for Income Tax changes the process of reporting, not the tax itself. Here's the side-by-side.

The old way vs the new way

Self Assessment (until now)MTD for Income Tax (from your start date)
One annual tax returnFour quarterly updates + a final declaration
Records can be paper or spreadsheetsDigital records in compatible software
One deadline (31 January)Five deadlines across the year
File once, often in the January rushReport as you go, quarter by quarter

What stays exactly the same

What's genuinely new

The mindset shift: instead of one big annual scramble, MTD spreads the admin across the year. Done well, that's actually less stressful — your numbers are always up to date. Done badly, it's four chances to miss a deadline instead of one. That's the difference a system (or a service) makes.

When it starts for you

MTD for Income Tax applies from April 2026 if your qualifying income is over £50,000; April 2027 over £30,000; and April 2028 over £20,000. See which MTD wave you're in for how "qualifying income" is worked out.

General guidance only, not personal tax advice. Rules can change and your situation may have nuances — check with a qualified accountant.

Let us handle all five filings

We turn the quarterly admin into something you never have to think about.

See how it works