Making Tax Digital for Sole Traders & the Self-Employed — 2026 Guide

Self Assessment as you know it is being retired. From 6 April 2026, Making Tax Digital for Income Tax (MTD) becomes mandatory for sole traders with qualifying income over £50,000 — and over the following two years the net widens to catch most of the UK's self-employed. If you freelance, contract, drive, build, design or sell as a sole trader, this is the biggest change to how you deal with HMRC since Self Assessment was introduced in the 1990s.

The headline: digital records, quarterly updates, and a year-end final declaration — all through software. This guide covers who is mandated and when, what the quarterly rhythm actually looks like, what "digital records" means in practice, and how to get ready without buying into a big accounting suite you do not need.

Who Is Mandated, and When

Qualifying income is your gross self-employment turnover — before any expenses — plus any gross rental income. It is not profit. HMRC measures it from the tax return filed two years before each start date:

Remember the combination rule: a plumber with £40,000 of trade turnover and £15,000 of rent has £55,000 of qualifying income and is mandated from day one. Our threshold guide works through more examples, including exemptions for the digitally excluded.

The New Rhythm: What You File and When

1. Quarterly updates — a digital summary of your business income and expenses for the year so far, due by 7 August, 7 November, 7 February and 7 May. These are running totals, not mini tax returns: no tax is calculated or due with them.
2. Final declaration — after the year ends you finalise everything (reliefs, allowances, other income such as employment or dividends) by 31 January, exactly as with Self Assessment today.
3. Payments — unchanged. 31 January balancing payment and the usual payments on account.

If you run more than one trade, or a trade plus rental property, each business has its own quarterly cycle — see quarterly updates explained for deadlines, cumulative corrections and the calendar-quarter election.

What "Digital Records" Really Means

For every business transaction you must record digitally: the date, the amount, and the category of income or expense. Two things follow from HMRC's rules that most sole traders have not internalised:

• Typing your bank statement into Excel is not compliant. Manual transcription breaks the "digital link" requirement — data must flow from source to submission without being re-keyed.
• You do not need a big accounting suite. Spreadsheets plus HMRC-recognised bridging software are explicitly allowed. What matters is that the spreadsheet is produced and connected digitally.

For most one-person businesses, the bank account already contains the truth. The efficient MTD workflow is: download your statement (PDF or CSV), convert it automatically into a categorised spreadsheet with a tool like BankScan AI, review the categories, and keep that file as your digital record for the quarter. Minutes, not evenings — and it satisfies the digital-link rule because nothing is retyped. The digital record-keeping guide covers the rules in depth.

Five Things to Do Before April

1. Check your 2024–25 gross turnover (plus rent). Over £50,000 means you are in wave one — HMRC has been writing to affected taxpayers, but do not wait for a letter.
2. Split business from personal banking. A dedicated business account halves the record-keeping pain instantly.
3. Choose your software path: full accounting package, or spreadsheet + bridging software. Verify anything against HMRC's recognised list on GOV.UK.
4. Run a practice quarter now. Convert last quarter's statements, categorise, and see how your numbers look — before it counts.
5. Understand the penalty points system so a bad month never snowballs into fines.

Frequently Asked Questions

Is MTD replacing Self Assessment?

For mandated sole traders and landlords, yes — the annual Self Assessment return is replaced by four quarterly updates plus a final declaration submitted through software. The 31 January deadline survives (for the final declaration and payment), but the once-a-year, type-it-all-in ritual ends.

Do I pay tax four times a year under MTD?

No. Quarterly updates are information only — running totals of income and expenses. Your tax is calculated and finalised at the final declaration, and payment dates (31 January, plus payments on account where they apply) are unchanged. HMRC does show you an estimated tax figure after each update, which many people find genuinely useful for saving ahead.

I have an employed job and a side business — am I caught?

PAYE employment income does not count towards the threshold. What counts is gross self-employment turnover plus gross rental income. A £60,000 salary with £10,000 of freelancing stays out (for now); £52,000 of freelancing alone is in from April 2026.

Can I keep using my spreadsheet?

Yes — spreadsheets are explicitly permitted as digital records, provided they link to HMRC-recognised bridging software for submission and the data reaches the spreadsheet digitally (imported or converted, not manually retyped from statements). That last detail is the one that catches people.

What if my income later drops below the threshold?

You generally stay in MTD once mandated, but you can apply to leave if your qualifying income falls below the threshold for three consecutive tax years. In practice, plan on staying in once you are in.

What should I actually buy to be compliant?

Possibly less than you think. You need somewhere digital to keep transaction records (a spreadsheet counts) and HMRC-recognised software to submit. If your records come straight from your bank statements, an automated converter plus bridging software is the leanest compliant setup — check GOV.UK's recognised software list before committing to anything.

Last updated: 10 July 2026. This guide explains the Making Tax Digital rules as published by HMRC — always check GOV.UK for the latest official guidance. Read our MTD bank statement compliance guide or browse all blog posts.