Making Tax Digital for Sole Traders — What It Is, Who It Affects, and What to Do Now

Published April 2026 · 9 min read · By Solofold

Making Tax Digital for Income Tax (MTD for IT) is the biggest change to UK self-assessment in a generation. From April 2026, sole traders and landlords with annual income above £50,000 must report their income and expenses to HMRC quarterly — using compatible software — rather than submitting a single annual tax return.

If that threshold affects you, the transition is already underway. If it doesn't affect you yet, lower thresholds are coming. This guide covers everything you need to know: what MTD actually requires, who's affected and when, and the five practical steps to get ready.

What is Making Tax Digital for Income Tax?

MTD for Income Tax replaces the traditional annual Self Assessment tax return with a system of quarterly digital updates, followed by a final end-of-year submission. Instead of summarising everything once a year, you'll be reporting your income and expenses to HMRC every three months using software.

The theory behind this is that smaller, more regular updates mean fewer errors and surprises. HMRC can show you a predicted tax bill throughout the year rather than presenting one large figure in January. Whether that's a benefit or a burden depends largely on how organised your records already are.

Who needs to use MTD?

According to HMRC, you must use Making Tax Digital for Income Tax if all of the following apply:

• You are an individual registered for Self Assessment
• You receive income from self-employment as a sole trader or from property as a landlord, or both
• Your qualifying income exceeds the relevant threshold (currently £50,000 for 2026-27)

"Qualifying income" means your total gross income from self-employment and/or property before any expenses are deducted. If you have multiple income sources, HMRC looks at the combined total. Check HMRC's guidance tool if you're unsure whether your income qualifies.

Limited companies are not affected by MTD for Income Tax. This applies specifically to sole traders and landlords using Self Assessment.

What changes under MTD?

Under the current system, you submit one tax return per year (typically by 31 January). Under MTD, the year is restructured as follows:

Penalties under MTD

MTD introduces a new points-based penalty system for late submissions. Rather than being fined immediately for a missed quarterly update, you accumulate penalty points. Once you reach the threshold (4 points for quarterly filers), you receive a financial penalty. Each missed submission after that also triggers a penalty.

The penalty point system means a single missed deadline won't immediately cost you money — but a pattern of late submissions will. Points expire after two years of full compliance, so the incentive is to stay consistent rather than panic over one missed deadline.

Your 5-step action plan

Step 1: Work out your qualifying income. Add up your gross income from self-employment and property for the last tax year. If it's over £50,000, you're in scope for April 2026. Even if you're under £50,000 now, the threshold drops to £30,000 in 2027 and £20,000 in 2028 — so it's worth preparing.

Step 2: Choose compatible software. HMRC does not provide free software for MTD. You'll need to use third-party software that's been approved for MTD submissions. Options range from full accounting packages (QuickBooks, Xero, FreeAgent) to simpler tools. Some are free or low-cost for basic sole traders. HMRC publishes a list of compatible software on gov.uk — check it and compare before committing.

Step 3: Get your digital records in order now. MTD requires all your business income and expenses to be recorded digitally. If you're still using a shoebox of receipts or a basic spreadsheet, now is the time to establish a proper digital record-keeping habit. The earlier you start, the easier the transition will be.

Step 4: Sign up before your deadline. HMRC has an online sign-up process. For most sole traders mandated from April 2026, the sign-up window opened in early 2026. Don't leave this until the deadline — the process takes time and you may need to provide information about your existing Self Assessment registration.

Step 5: Set up your quarterly reporting schedule. Mark the four quarterly submission deadlines in your calendar. The deadlines fall at the end of each quarter of the tax year: 5 August, 5 November, 5 February, and 5 May. Missing these generates penalty points, so build a reminder system now.

The bottom line

MTD for Income Tax is a significant administrative change, but it doesn't have to be a crisis. The sole traders who'll find it most disruptive are those with poor record-keeping habits today. If your records are organised, categorised, and up-to-date throughout the year, the quarterly updates will take minutes rather than hours.

The shift to quarterly reporting also has a genuine benefit: you'll know your approximate tax liability throughout the year rather than discovering it in January. That makes planning significantly easier, particularly for the Payments on Account problem many sole traders encounter in their second year.