Making Tax Digital for Income Tax: Rules, Dates & Software (2025/26)

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Making Tax Digital for Income Tax is the biggest change to Self Assessment in decades. This guide explains who’s affected and when, what quarterly digital reporting involves, the software requirements, how it differs from the current annual return, and how the self-employed and landlords can prepare for a phased rollout that begins in April 2026.

What is Making Tax Digital for Income Tax?

Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) requires affected taxpayers to keep digital records of their business and property income and expenses, and to send HMRC quarterly updates using compatible software. At the end of the year, a final declaration replaces the current Self Assessment return. It’s the extension of the digitalisation already applied to VAT.

The aim is to modernise tax reporting, reduce errors and give HMRC and taxpayers a more current view of income. For the self-employed and landlords used to filing one return each January, it’s a significant shift to a continuous, software-based rhythm of record-keeping and reporting throughout the year, rather than a single annual exercise.

Who has to comply and when?

The rollout is phased by income level. From April 2026, MTD for Income Tax applies to self-employed individuals and landlords with qualifying income over £50,000. From April 2027 it extends to those with income over £30,000, and the government plans to bring in those above £20,000 in subsequent years. ‘Qualifying income’ is gross income from self-employment and property before expenses.

This staged approach means the highest earners go first, with the threshold lowering over time to capture more taxpayers. Crucially, the test is on gross income, not profit, so someone with high turnover but modest profit can still be caught. Knowing your start date based on your qualifying income is the first step in preparing for the change.

What does quarterly reporting involve?

Under MTD for ITSA, you send HMRC a summary of your business and property income and expenses every quarter through compatible software, four times a year. These are running updates, not full tax calculations. After the fourth quarter, you finalise the year with a final declaration that brings in any adjustments, reliefs and other income — replacing the annual Self Assessment return.

This means moving from one annual filing to five touchpoints a year. The quarterly updates are designed to be straightforward summaries drawn automatically from your digital records, so the burden depends heavily on keeping those records current. Businesses that record transactions as they happen will find the quarterly updates almost automatic; those who don’t will face repeated scrambles.

What software do I need?

MTD for Income Tax requires functional compatible software that can keep digital records and submit the quarterly updates and final declaration to HMRC. This can be full accounting software like Xero, QuickBooks or others, or bridging tools that connect spreadsheets to HMRC. Manual record-keeping on paper, or typing figures into a website, won’t satisfy the rules.

Choosing software early and getting comfortable with it before your start date is the single best preparation step. Many providers offer MTD-ready products, some designed specifically for sole traders and landlords. As with MTD for VAT, the digital records must connect to the submission through digital links, so the whole data flow needs to be electronic.

How does it differ from the current Self Assessment return?

The current system is a single annual return filed by 31 January, often prepared from records gathered after the year-end. MTD replaces this with continuous digital records, four quarterly updates, and a year-end final declaration. The annual lump-sum effort becomes a steady, software-driven process spread across the year, with the final declaration doing the job the old return did.

For many, the biggest change is behavioural: keeping records up to date throughout the year rather than reconstructing them each January. The payment dates for the tax itself are not changed by MTD’s reporting structure in the same way, but the reporting rhythm is transformed. Those already using cloud bookkeeping will adapt easily; paper-based taxpayers face the largest adjustment.

How should I prepare for MTD for Income Tax?

Preparation centres on adopting compatible software, establishing a habit of recording income and expenses digitally as they occur, and understanding your start date based on your qualifying income. Landlords and the self-employed who currently keep manual or spreadsheet records should transition to MTD-ready software well before they’re mandated, to learn the system without deadline pressure.

Working with an accountant can smooth the change, as they can recommend software, set up the digital records, and handle the quarterly submissions and final declaration. The earlier you prepare, the less disruptive the switch. Treating MTD as an opportunity to improve your financial record-keeping — and gain real-time visibility of your income — makes the transition a benefit rather than just a burden.

A practical example: a landlord preparing for MTD

Consider a landlord with £55,000 of gross rental income. Because this exceeds £50,000, they fall into MTD for Income Tax from April 2026. To prepare, they adopt compatible software in 2025, start recording rent and expenses digitally, and get used to producing quarterly summaries — so that when the rules bite, the process is already routine rather than a shock.

Had they waited until April 2026 to act, they’d face learning new software and a new reporting rhythm under time pressure, with penalties for getting it wrong. The example shows why early preparation matters and how MTD’s quarterly structure rewards those who keep digital records current — a discipline that also gives them a clearer, ongoing picture of their property finances.

Who is exempt from MTD for Income Tax?

Some taxpayers are exempt or have deferred start dates. Those with qualifying income below the relevant threshold aren’t yet caught, and exemptions exist for certain people, such as those who genuinely can’t use digital tools for reasons of age, disability or location, or for whom it isn’t reasonably practicable. Some types of income and certain taxpayers may also have specific deferrals.

However, the direction of travel is clear: more taxpayers will be brought in as thresholds lower over time. Relying on an exemption is only sensible where it genuinely applies, and the criteria are specific. Most self-employed people and landlords above the income thresholds should plan to comply rather than hope to avoid it, since the system is designed to expand its reach progressively.

How will MTD affect working with an accountant?

MTD changes the rhythm of working with an accountant from an annual exercise to a more continuous relationship. With digital records and quarterly updates, your accountant can access live data, handle the quarterly submissions, and spot issues during the year rather than after it. Many will offer MTD-compliant software and manage the whole process on your behalf.

This can actually enhance the value of professional support, shifting it from year-end data entry toward ongoing advice and planning. For the self-employed and landlords, agreeing early how the quarterly submissions and final declaration will be handled — and what software to use — ensures a smooth transition. The continuous nature of MTD makes a good accountant relationship more useful, not less.

Turning MTD into an opportunity

Although MTD adds reporting obligations, it can deliver real benefits. Keeping digital records updated through the year gives you a current view of your income, profitability and tax position, rather than discovering it each January. Cloud software automates much of the bookkeeping, saving time and reducing errors, and the quarterly rhythm encourages better financial discipline.

Approached positively, MTD is a prompt to modernise how you manage your finances. The self-employed and landlords who embrace it often find they understand their numbers better and make more informed decisions, from pricing to spending to tax planning. Viewed this way, the move from an annual scramble to continuous digital records is an upgrade to financial management, not merely a compliance burden.

Common MTD for Income Tax mistakes to avoid

Anticipated pitfalls include leaving software adoption until the start date, misjudging the qualifying-income threshold by looking at profit rather than gross income, breaking digital links through manual entry, and missing quarterly update deadlines. Each can create compliance failures and penalties under the new regime.

Avoiding them means adopting compatible software early, checking gross income against the thresholds, keeping the data flow digital, and treating the quarterly deadlines as fixed. Preparing well ahead of your mandated start date is the surest way to a smooth transition, turning what could be a stressful upheaval into a routine extension of good digital record-keeping.

How does MTD for Income Tax connect to MTD for VAT?

MTD for Income Tax builds directly on the foundation laid by MTD for VAT, applying the same principles of digital records, compatible software and digital links to a new tax. Businesses already complying with MTD for VAT have a significant head start, as their software and record-keeping habits largely transfer to the income tax requirements.

This connection underlines the government’s long-term direction: a progressively digital, real-time tax system across all the main taxes. For the self-employed and landlords who are also VAT-registered, the systems can often work together in the same software. Seeing MTD as a single, expanding programme rather than separate obligations helps businesses build the digital infrastructure that serves every tax at once.

What are the costs and benefits of MTD compliance?

MTD compliance has costs — software subscriptions, time learning new systems, and possibly higher accountancy fees for quarterly work — which fall hardest on smaller businesses and landlords near the thresholds. These are real burdens, particularly for those who previously managed with minimal record-keeping and a single annual return.

Against this sit genuine benefits: fewer errors, real-time financial visibility, easier year-end finalisation, and better-informed decisions from current data. For many, the software pays for itself in time saved and mistakes avoided. While the transition has a cost, businesses that engage with it properly often find the ongoing experience better than the annual scramble it replaces, especially once the initial setup is behind them.

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