What are the MTD Deadlines for 2026? [Fully Explained]

Making Tax Digital (MTD) is one of the biggest changes to the UK tax system, and on 6 April 2026, it became a reality for hundreds of thousands of sole traders and landlords. 

Understanding the MTD deadlines for 2026 is the first and most important step in preparing. Knowing exactly when MTD starts, who it applies to, and what you need to submit can help you avoid unnecessary stress, missed deadlines, and penalties.

In this guide, we break down all the key MTD deadlines for 2026, explain how they fit into the tax year, and show you what practical steps you can take now to stay compliant and in control.

Key points

• MTD in 2026 is based on income, not profit 💷
  Whether you must comply depends on your qualifying income from self-employment and property, not what you take home after expenses. When MTD becomes mandatory depends on certain income thresholds.
• Quarterly updates spread the workload but require consistency 📅
  Instead of one annual rush, MTD introduces four cumulative quarterly updates each year. These don’t calculate your final tax bill, but missing them can lead to penalty points, so regular bookkeeping becomes essential.
• The final declaration still matters just as much 📝
  Even with quarterly reporting, you must submit a final year-end declaration to confirm your income, adjustments, and reliefs. 
• Getting set up early is the easiest way to stay compliant ✅
  If you exceed the MTD threshold, it’s your responsibility to register for MTD. Choosing MTD-compliant software early and moving to digital record-keeping now reduces stress, avoids rushed onboarding, and helps you build good habits before deadlines hit. 
• ANNA can make MTD easier to manage 🚀
  ANNA helps keep your financial records organised throughout the year, with automated bookkeeping, real-time tax estimates, and MTD-compatible tax filing. This means less manual admin and fewer things to keep track of as your quarterly reporting responsibilities begin. 

What is MTD?

Making Tax Digital for Income Tax is HMRC’s move towards a fully digital tax system. Under MTD, taxpayers must:

• Keep digital records of income and expenses
• Use HMRC-recognised, MTD-compatible software
• Submit regular updates to HMRC throughout the tax year
• Confirm final figures through a year-end declaration

For sole traders and landlords, MTD replaces the traditional annual Self Assessment tax return with a structured reporting cycle that includes quarterly updates and a final declaration. While tax payments will still be due by 31 January, the way HMRC receives information about your income changes significantly.

The goal of MTD is to improve accuracy, reduce errors caused by manual processes, and give taxpayers greater visibility over their tax position during the year. In practice, it means bookkeeping becomes an ongoing task rather than something handled once a year.

Who has to comply in 2026?

Whether you’re required to join MTD in 2026 depends on your qualifying income, not your profit.

Qualifying income is your total gross income from self-employment and UK or overseas property. Your expenses, allowances, and losses aren’t deducted when assessing whether you meet the threshold.

The rollout thresholds are:

• From 6 April 2026: qualifying income over £50,000
• From 6 April 2027: qualifying income over £30,000
• From 6 April 2028: qualifying income over £20,000

Even if you don’t exceed the threshold in a given year, you can still voluntarily register for MTD to get ahead of the game and remain compliant when you eventually will need to register. 

MTD Starts – 6 April 2026

From 6 April 2026, you must begin using MTD-compliant software to keep digital records for the 2026–27 tax year. From this point onward, income and expenses must be recorded digitally, and manual or paper-based records will no longer meet HMRC’s requirements if you’re within the scope of MTD.

This date marks a structural change rather than an immediate filing deadline. Although your first quarterly update isn’t due until August 2026, the way you record and manage your finances has to change. 

Any income or expenses recorded outside compliant software after this date may need to be re-entered later, increasing the risk of errors and missed deadlines.

Quarterly reporting deadlines (2026–27)

Under MTD for Income Tax, the tax year is divided into four reporting periods, each requiring a quarterly update of your income and expenses:

Quarterly updates are cumulative, meaning each submission includes totals from the start of the tax year, not just the most recent quarter.

These updates don’t calculate your final tax bill, but they give HMRC an ongoing picture of your business activity. Missing a quarterly deadline can result in penalty points, which may convert into financial penalties if they accumulate.

Final year-end declaration

Even under MTD, you’re still required to submit a final declaration for the tax year. For the 2026–27 tax year, this must be submitted by 31 January 2028 using your MTD-compatible software. This step replaces the traditional Self Assessment tax return process.

The final declaration is where you confirm your total income, make any adjustments, and include other income or tax reliefs that weren’t part of your quarterly updates. While quarterly submissions are summaries, this final step confirms your overall tax position and finalises your liability for the year, making it a critical part of remaining fully compliant under MTD.

How 2026 deadlines fit into a tax year

To help you plan ahead, the table below shows how all these deadlines fit together within a typical UK tax year under MTD:

Practical steps to meet your 2026 deadlines

Getting ready for Making Tax Digital isn’t something that can be done at the last minute. MTD fundamentally changes how and when you report income, and the businesses that struggle most are usually the ones that treat it as a simple software switch rather than a change in process.

To stay compliant and avoid penalties, it’s essential to plan ahead in four key areas:

1. Choose MTD-compliant software early

Under MTD for Income Tax, you can no longer submit updates directly through HMRC’s online Self Assessment system. All record-keeping and submissions have to be done using HMRC-recognised, MTD-compatible software.

This software must be able to:

• Keep digital records of your income and expenses
• Maintain digital links between records and submissions
• Submit quarterly updates to HMRC
• Submit your final year-end declaration

Choosing software early gives you time to:

• Learn how it works without deadline pressure
• Set up bank feeds and expense categories correctly
• Test quarterly reporting before it becomes mandatory

Not all accounting software is created equal. Some tools are designed for accountants, while others are built specifically for those who want something simple and automated. 

The right solution for you depends on your level of confidence, the complexity of your income, and whether you plan to manage submissions yourself or work with an accountant.

Leaving this decision for later increases the risk of rushed onboarding, data errors, and missed deadlines.

2. Move to full digital record-keeping

MTD isn’t just about submitting figures digitally – it requires digital records to be kept from the start.

This means:

• Recording income and expenses in software, not spreadsheets or notebooks
• Keeping transaction dates, amounts, and categories digitally
• Maintaining digital links between records and submissions

While MTD doesn’t require you to upload receipts, having them digitally stored and linked to transactions makes compliance easier and reduces the risk of errors.

Starting digital record-keeping before it becomes mandatory has major advantages:

• You build better habits before quarterly reporting begins
• Your figures are cleaner and easier to reconcile
• You avoid the stress of converting a year’s worth of records at once

Many taxpayers underestimate how long it takes to adjust from annual bookkeeping to ongoing, real-time record-keeping. Starting early lets you spread that learning curve over months rather than weeks.

3. Verify whether you’re above the threshold

Many taxpayers assume they are below the threshold because their profits are lower, only to discover too late that their gross income puts them within the MTD rules.

If you exceed the threshold, it’s your responsibility to register for MTD. HMRC won’t do this for you. And if you miss the deadlines to file your quarterly returns, it can result in penalty points, which may convert into financial penalties if they accumulate.

4. Build quarterly deadlines into your workflow

One of the biggest adjustments under MTD is moving from a single annual deadline to multiple reporting deadlines throughout the year.

To stay on track, you should:

• Add quarterly submission dates to your calendar
• Schedule regular bookkeeping time each month or quarter
• Understand what each quarterly update requires (summary income and expenses, not final tax calculations)

Because quarterly updates are cumulative, falling behind early in the year makes later updates more stressful and error-prone.

By integrating MTD deadlines into your normal workflow, quarterly reporting becomes a routine task rather than a constant source of pressure.

How ANNA helps you prepare for MTD

ANNA is built for sole traders, landlords, and small businesses that want to stay compliant without spending hours on admin. By combining business management, accounting, and tax tools in one place, ANNA supports MTD from day one.

With ANNA, you can:

• Have your MTD-ready Self-Assessment tax returns prepared and filed automatically, with automatic MTD-compliant digital records, quarterly updates, financial reports, and tax estimates. 
• Connect your business account directly to your bookkeeping, with automatic transaction categorisation and real-time syncing.
• Keep all your income and expenses organised in one place, reducing manual work and the risk of errors.
• Stay on top of your tax position throughout the year, not just at the deadline, with up-to-date insights into what you owe.

So, sign up with ANNA today and get ahead of this year's changes.