MTD for Income Tax is live: what it means if you’re earning over £50k as a sole trader

From 6 April 2026, the annual Self Assessment tax return is gone for a significant chunk of sole traders in the UK. If your gross income from self-employment or property crosses £50,000, you’re already in the new system. That means quarterly digital updates to HMRC — four times a year, through approved software — not one big scramble every January. If you haven’t set anything up yet, now’s the time to stop putting it off.

This isn’t scaremongering. It’s just the new reality of running a trade in the UK. Here’s what’s actually changed, what you need to do, and how to handle it without your head caving in.

What is MTD for Income Tax, and is it actually new?

Making Tax Digital for Income Tax Self Assessment — usually shortened to MTD ITSA — has been talked about for years. But as of 6 April 2026, it stopped being a conversation and started being law.

MTD ITSA requires businesses and landlords with qualifying income to maintain digital records and update HMRC each quarter using compatible software. That’s the short version. The longer version is that Making Tax Digital replaces the current system of one annual tax return with a new system with more frequent, digital updates.

For most tradespeople who’ve been operating as sole traders for years, this is a real shift in how you interact with HMRC — not just a tweak to a form.

Are you in scope right now?

The question everyone asks first: does this actually apply to me?

From April 2026, MTD for Income Tax Self Assessment applies to self-employed sole traders and landlords with qualifying income over £50,000. Qualifying income means gross income before expenses or allowances are deducted, not your taxable profit. If your total self-employment and property income crosses that threshold, you are in scope regardless of how much profit you actually make.

That last point catches a lot of people out. Your turnover matters here, not what lands in your pocket after materials, fuel, and tools. These thresholds are based on gross income and not profit. If your business turnover is £55,000, but your profit after expenses is only £30,000, you’ll still need to apply for MTD in 2026.

And if you’ve got rental income on top of your trade income, HMRC adds them together. An individual who is a landlord and sole trader may receive £20,000 in rent and £30,000 in gross revenue for the year. Although the two values are individually below £50,000, together they take total income to more than £50,000. So the combined figure is what counts.

It is expected that around 780,000 people with business or property income over £50,000 will join the MTD for ITSA service from April 2026. That’s a lot of sole traders — many of them tradespeople.

The rollout timetable at a glance

MTD is being introduced in phases, so not everyone joins at the same time:

April 2026 — Qualifying income over £50,000 (2024/25 tax year figures)
April 2027 — Qualifying income over £30,000 (2025/26 tax year figures)
April 2028 — Qualifying income over £20,000 (2026/27 tax year figures)

From April 2028, the threshold is reduced to £20,000, bringing a further ~900,000 taxpayers into MTD. So even if you’re not in scope yet, you likely will be.

HMRC uses your most recent Self Assessment return to determine your start date. HMRC uses your 2024/25 Self-Assessment return (due 31 January 2026) to determine whether you start in April 2026. If HMRC thinks you’re in scope, they will write to you prior to 6 April 2026 advising registration.

What does quarterly reporting actually involve?

This is the part that makes people nervous, but it’s less complicated than it sounds once you get your head around it.

Each quarterly update is a summary of your business income and expenses for that three-month period. You don’t need to send invoices or receipts; just the totals in each category. Think of it like a quick monthly check-in — except it’s every three months.

The four submission deadlines each year fall one month after each quarter ends:

Q1 (6 Apr – 5 Jul): due 7 August
Q2 (6 Jul – 5 Oct): due 7 November
Q3 (6 Oct – 5 Jan): due 7 February
Q4 (6 Jan – 5 Apr): due 7 May

The first quarterly update, for the quarter 6 April to 5 July 2026, is due on 7 August 2026. The first final declaration for the tax year 2026/27 is due on 31 January 2028.

After the four quarterly updates, you submit a Final Declaration — this replaces the old Self Assessment tax return as the point where you confirm your full-year figures, claim allowances, and finalise your tax position. Your January 31 year-end deadline hasn’t changed; what’s changed is that you’ve already been updating HMRC throughout the year before that point.

One thing worth knowing: the new required quarterly updates through HMRC software are not tax calculations. They are summaries only, and don’t calculate the amount of tax you owe; they simply update HMRC on your financial position. You’re not paying tax four times. You’re just reporting more often.

Why a spreadsheet won’t cut it anymore

If your current system is a shoebox of receipts and a spreadsheet you fill in come January, that’s over.

Paper receipts stuffed in a shoebox and end-of-year spreadsheet summaries will no longer meet HMRC’s requirements. Instead, all records must be stored in MTD-compatible software that can communicate directly with HMRC’s systems.

If you prefer to use a spreadsheet, you can, but it is not sufficient on its own. You will need to use bridging software — a separate programme that reads your spreadsheet data and uses the digital link to submit the required figures to HMRC. That’s more moving parts, not fewer.

For most tradespeople, the cleaner solution is purpose-built software that does the heavy lifting — logs income, categorises expenses, connects to your bank account, and sends updates to HMRC directly. That’s precisely where something like Mucka fits in, built with the kind of work you actually do in mind, not designed for an office accountant.

The penalty system: what happens if you miss a deadline?

The penalty structure under MTD is different from the old Self Assessment regime, and it’s worth understanding before you fall foul of it.

From April 2026, every time you submit a quarterly update late, you receive one penalty point. It does not matter whether the submission is one day late or three months late — the point is the same regardless. The threshold for MTD Income Tax is four points. Once you reach four penalty points, HMRC issues a £200 fixed penalty.

There is a bit of breathing room in the first year, though. HMRC confirmed that taxpayers joining MTD for Income Tax in April 2026 will not receive penalty points for late quarterly updates for the first 12 months. After that, late submissions may trigger automatic penalties, and a £200 penalty applies once four points are reached.

But do not mistake the soft landing for a free pass. The MTD soft landing for 2026 to 2027 only pauses penalty points for late quarterly updates. It does not remove the legal duty to file, protect late Final Declarations, or stop late payment penalties and interest from applying.

Translation: file your quarterly updates even if they’re a bit late this first year, and absolutely do not miss the 31 January 2028 Final Declaration deadline.

The awareness gap — and why it matters

Here’s a stat that should give every tradesperson pause. According to a survey by IRIS Software, 31% of sole traders have never even heard of Making Tax Digital — despite the fact that from April 2026, those earning over £50,000 will be legally required to submit quarterly digital tax returns under the new system.

If you’re reading this, you’re ahead of that third. But awareness is only the first step. Getting the right setup in place — software, bank feeds, records — is where the real work is.

What you need to do right now

Here’s the practical checklist, without the fluff:

1. Work out your qualifying income Add up your gross self-employment turnover and any property income from your 2024/25 tax return. If it’s £50,000 or more, you’re in scope now.

2. Choose MTD-compatible software HMRC-approved software is required to submit quarterly updates; spreadsheets alone are not sufficient. Use HMRC’s software finder tool on GOV.UK to see recognised options.

3. Connect your bank account and start recording digitally Modern MTD software can connect to your bank account and automatically sort transactions into HMRC’s required categories. This cuts down significantly on manual data entry and admin time. Get that set up before you’re scrambling.

4. Register for MTD with HMRC You’ll need your Government Gateway credentials and your UTR. Do this well before your first quarterly deadline — HMRC’s registration process can take time, and your software will need to be authorised to connect to your HMRC account before you can submit anything.

5. Know your first deadline If you’re in Phase 1, your first quarterly update for Q1 2026/27 is due by 7 August 2026. That’s not far away.

What if you’re not yet over the threshold?

If your qualifying income is below £50,000 but above £30,000, you join in April 2027. Below £30,000 but above £20,000? April 2028. The qualifying income threshold drops to £30,000 in April 2027 and £20,000 in April 2028, bringing hundreds of thousands more sole traders and landlords into scope.

Even if you’re not in yet, starting to record your income and expenses digitally now means you’re not playing catch-up when the date comes.

Frequently asked questions

Does MTD change when I pay my tax?

MTD does not change when you pay your tax. The payment dates remain the same as under Self Assessment: 31 January for the balancing payment and first payment on account, and 31 July for the second payment on account. The reporting changes; the payment schedule stays put.

What counts as qualifying income?

Qualifying income is the total gross income (before expenses) from all your self-employment trades and property businesses in a tax year. It does not include dividends, savings interest, pensions or capital gains. So your PAYE wage from any day job doesn’t factor in — it’s your trade and property income only.

Can I still use an accountant under MTD?

Absolutely. Your accountant can register on your behalf and submit your quarterly updates for you through their own software. What changes is that everything needs to flow through MTD-compatible systems — they can’t just tidy up a spreadsheet and submit it through the HMRC portal anymore.

What if my income drops below the threshold after I’ve joined?

The MTD income tax regulations allow taxpayers to stop complying with the requirements where their qualifying income falls below the threshold or when the business ceases permanently. To avoid taxpayers joining, exiting, and re-joining on a frequent basis, the requirements cease to apply only when qualifying income falls below the threshold for three successive years.

I’m a limited company — does this affect me?

No. Limited companies are not affected by MTD for Income Tax (they will fall under Making Tax Digital for Corporation Tax, which has a separate timeline). MTD ITSA applies specifically to sole traders and landlords.

MTD for Income Tax isn’t going away, and the threshold is only heading in one direction — down. If your income’s over £50k, you’re already in it. If you’re under that for now, you’ve got time to get sorted before it catches up with you.

Mucka is built to take the admin weight off tradespeople exactly like you — logging jobs, tracking income, and keeping your records clean so quarterly reporting isn’t a last-minute panic. If you want to see how it works in practice, take a look at what Mucka does or get started today.