Making Tax Digital for Income Tax: Complete 2026 Guide for UK's Self-Employed and Landlords

If you're self-employed, a landlord, or earning income from both, there's a good chance the biggest change to UK personal tax in a generation is already knocking on your door.

From 6 April 2026, Making Tax Digital for Income Tax (MTD for IT) became mandatory for the first wave of taxpayers — and HMRC is not waiting for people to catch up. Millions more will follow in 2027 and 2028 as the income thresholds drop further.

This guide explains exactly what's changing, who it affects right now, and what to do before it catches you off guard.

What Is Making Tax Digital for Income Tax?

Making Tax Digital for Income Tax — also known as MTD for IT or MTD ITSA — is HMRC's plan to replace the traditional annual Self Assessment tax return with a more frequent, software-driven system. Instead of filing once a year, affected taxpayers will now need to:

The goal, from HMRC's perspective, is to reduce errors, improve real-time visibility of taxpayer income, and move the entire system into the digital age. The reality for taxpayers is that it requires a genuine shift in how financial records are kept day to day.

It's important to understand what MTD for Income Tax does 

 cover: this is about Income Tax for individuals only. 

 are already under MTD for VAT (which has been live since 2022), and Corporation Tax for limited companies has not yet entered the MTD framework. If you operate through a 

, MTD for IT does not apply to you at all.

Who Is Affected — The Threshold Timeline

MTD for IT is being rolled out in three waves, each based on your 

WaveStart DateIncome ThresholdBased OnWave 16 April 2026Over £50,0002024/25 gross incomeWave 26 April 2027Over £30,0002025/26 gross incomeWave 36 April 2028Over £20,0002026/27 gross income

 is the total combined gross income (before expenses) from self-employment and UK or overseas property. These two sources are added together — so even if neither crosses the threshold on its own, the combined figure is what matters.

 A sole trader earning £28,000 from their trade, plus £23,500 from a buy-to-let property, has qualifying income of £51,500. They're caught by Wave 1 from April 2026, even though neither income stream individually exceeds £50,000.

 who assume they're safely under the threshold — often without realising it.

Not everyone is brought in under the current rules. The following are either deferred or exempt:

There are also specific exemptions available in limited circumstances — for example, for those with a disability or older age who cannot engage with digital systems. Our 

 can confirm whether any exemption applies in your situation and handle the application with HMRC on your behalf.

For taxpayers brought into MTD, the practical day-to-day impact is significant.

You'll no longer be able to gather receipts at year-end and hand them to your accountant in a folder. Income and expenses must be logged in MTD-compatible software as they occur. This is where 

bookkeeping and digital record management

 becomes essential throughout the year, not just at tax time.

Each quarter, a summary of your income and expenses must be submitted to HMRC digitally. These are not tax payments — they're updates. But they form part of the record HMRC uses to track your tax position in real time, and errors or late submissions attract penalties.

At the end of the tax year, you'll submit a Final Declaration — essentially replacing the old Self Assessment return — confirming your full income picture, including any adjustments, allowances, or reliefs. For landlords, this is where 

landlord-specific tax reliefs and allowances

 positions will also need to be reported in the broader tax picture.

Spreadsheets alone are not acceptable under MTD — records must be kept in HMRC-recognised software, or bridged through software that can interact with HMRC's systems. The most widely used platforms are 

, both of which Hayes Chartered Certified Accountants are trained to set up and manage on your behalf.

Why You Shouldn't Wait for the Letter From HMRC

Many taxpayers assume they're safe until HMRC writes to them confirming they must join. That's a risky assumption for two reasons.

First, the legal obligation to assess whether you're in scope sits with 

, not with HMRC. A letter is a courtesy — not a prerequisite to compliance.

Second, the transition itself takes time. Software needs to be set up and connected to HMRC's systems. Historic records often need to be reorganised before they can be digitised properly. And the first set of quarterly submissions are where most errors happen — typically because people are filing under pressure, for the first time, with a system they haven't had time to learn.

, and landlords managing multiple properties, getting ahead of this transition is almost always less expensive and less stressful than being forced into it at the last minute.

How Hayes Chartered Certified Accountants Can Help

At Hayes Chartered Certified Accountants and Tax Consultants, our mission is straightforward: we are more than just accountants — we are your gateway to financial clarity and success. We believe in building long-standing relationships through reliable, transparent, and efficient accounting solutions that help our clients achieve their financial goals with confidence. That same approach applies to everything we do around MTD.

Our ACCA-certified team provides a complete, end-to-end 

 for sole traders, landlords, and individuals across London and the UK — from initial eligibility checks through to quarterly submissions and the Final Declaration.

If you're not yet in scope, we can also continue to manage your 

 under the current system while helping you plan ahead for whichever threshold year will eventually apply to you.

We understand that handing over your financial affairs to an accountant is a significant decision. Here's what sets Hayes apart from the rest:

 We don't work on commission, and there are no surprise invoices. You know exactly what you're paying from day one.

✔ ACCA-Certified Team of 100+ Professionals

 Every service is handled by qualified, experienced chartered certified accountants — not passed to junior staff.

 We take the time to understand your specific situation first, then build a solution around it — not the other way around.

 We know the value of ongoing follow-up. Our team keeps an eye on your accounts throughout the year, not just at filing time.

 We deliver before HMRC deadlines — always. No chasing, no last-minute stress.

 We work alongside you as a long-term financial partner, not just a once-a-year filing service.

 We back our work with a money-back guarantee on selected services — because that's how confident we are in our team.

Learn more about Hayes Chartered Certified Accountants →

Does MTD for Income Tax affect my VAT return?

 No — MTD for VAT and MTD for Income Tax are separate obligations. If you're VAT-registered, you may already be meeting MTD requirements for VAT. MTD for IT is an additional, separate mandate for Income Tax. 

 You'll need HMRC-recognised software. Hayes uses Xero and QuickBooks, both of which are fully MTD-compatible. We set this up for you and handle all submissions directly.

 Yes — quarterly updates are not tax payments. You still pay any Income Tax owed under the standard payment schedule. The Final Declaration replaces the old Self Assessment return.

What happens if I miss a quarterly submission?

 HMRC has introduced a new points-based penalty system for late submissions. Missing a submission accrues a point, and once you hit the threshold (four points for quarterly filers), a financial penalty applies. Ongoing non-compliance results in further daily penalties.

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