Making Tax Digital: What You Need to Know As a Small Business Owner

As the UK moves into the final days of 2025, Making Tax Digital (MTD) is no longer a distant reform for small businesses. With the first phase of Making Tax Digital for Income Tax set to begin in April 2026, HMRC has spent much of the past year laying the groundwork by contacting affected taxpayers and expanding its digital infrastructure.

Sole traders, landlords and small business owners who fall within the initial income thresholds are now entering a critical preparation window. While 2025 itself has not introduced new mandatory start dates, it has been a year of confirmations, penalty changes and formal communications from HMRC that signal the transition from planning to enforcement.

What Is Making Tax Digital & Why It Matters for Small Business Owners

Making Tax Digital is a government programme designed to modernise the UK tax system by replacing paper-based and manual processes with digital record-keeping and online submissions. Its core objective is to improve accuracy, reduce errors and close the tax gap by ensuring taxpayers keep up-to-date records throughout the year.

For small businesses, the shift is significant. Instead of submitting a single annual Self Assessment Tax Return, affected taxpayers will be required to keep digital records using HMRC-recognised software and send updates to HMRC on a quarterly basis. HMRC has consistently positioned this approach as a way to reduce mistakes and provide a more real-time picture of tax liabilities, although it also places greater responsibility on taxpayers to stay organised year-round.

Where Making Tax Digital Stands at the End of 2025

Making Tax Digital for VAT is already fully established. Since April 2022, all VAT-registered businesses have been required to comply with MTD, regardless of turnover, meaning digital VAT record keeping is now the norm across the UK business landscape. This phase has effectively acted as a testing ground for HMRC’s wider digital ambitions.

In contrast, Making Tax Digital for Income Tax Self Assessment (MTD ITSA) remains in its final pre-mandatory stage. Throughout 2025, HMRC has focused on system readiness, taxpayer education and pilot expansion rather than introducing new legal obligations. This approach reflects lessons learned from earlier delays and highlights HMRC’s intention to avoid further disruption ahead of the April 2026 start date.

Making Tax Digital for Income Tax: What Changes in 2026

From April 2026, Making Tax Digital for Income Tax will become mandatory for sole traders and landlords with qualifying income above £50,000 per year.

Those affected will be required to maintain digital records of income and expenses and submit quarterly updates to HMRC using MTD-compatible software like RentalBux. Quarterly submissions will be followed by a Final Declaration to confirm total taxable income for the year.

This marks a fundamental change in how Income Tax is reported.

Key Developments Confirmed During 2025

Although 2025 did not introduce new start dates, it played a crucial role in shaping how MTD for Income Tax will operate in practice. One of the most notable developments was HMRC beginning direct communication with taxpayers expected to fall into the April 2026 cohort. Letters and emails sent during the year were based on 2024/25 Self Assessment data, signalling a more proactive approach to compliance.

Another significant change was the expansion of the MTD for Income Tax pilot. By opening the pilot to a wider group of sole traders and landlords, HMRC has encouraged voluntary early adoption, allowing taxpayers to familiarise themselves with quarterly reporting without facing penalties. Alongside this, tougher late payment penalties were confirmed from April 2025, reinforcing the importance of timely digital submissions as the new system approaches.

Lower Thresholds & the Long-Term Direction of MTD

Looking beyond April 2026, HMRC has confirmed that the scope of Making Tax Digital will continue to widen. From April 2027, the income threshold will reduce to £30,000, followed by a further drop to £20,000 from April 2028. These changes were supported by draft legislation released during 2025, alongside proposals to refine exemptions and reporting flexibility.

The government has also reaffirmed its long-term commitment to the programme. Funding for Making Tax Digital has been approved through to 2034, making it clear that digital tax reporting is not a temporary initiative but a permanent shift in how the UK tax system operates. For small businesses, this signals that adapting sooner rather than later may reduce disruption in the years ahead. This also means researching on and testing out MTD-compatible software options.

Why Now Is the Time to Prepare

With just months remaining until MTD for Income Tax becomes mandatory, the end of 2025 represents a valuable preparation period. Reviewing income levels now allows sole traders and landlords to understand exactly when the rules will apply to them, avoiding uncertainty as deadlines approach.

Many businesses are also choosing to adopt the proper software ahead of time. Moving away from paper records or spreadsheets in advance can ease the transition to quarterly reporting, reduce errors and provide clearer insight into cash flow and tax liabilities. Early preparation also allows processes to be tested and refined before compliance becomes compulsory.

Conclusion

As 2026 approaches, Making Tax Digital is shifting from policy to practice. While the transition requires adjustment, it also reflects a broader move towards real-time financial management and greater transparency within the tax system. For small businesses willing to engage early, the changes may ultimately lead to better record-keeping and fewer last-minute pressures.

With HMRC communications increasing and penalties now aligned with digital compliance, the direction of travel is clear. Understanding the requirements before April 2026 puts businesses in a stronger position to meet their obligations confidently and adapt smoothly to the next phase of the UK’s digital tax system.

Frequently Asked Questions

1. When does Making Tax Digital for Income Tax start?

Making Tax Digital for Income Tax Self Assessment will begin in April 2026 for sole traders and landlords with qualifying income above £50,000 per year. This threshold is based on gross income, not profit, and is determined using figures reported in previous Self Assessment Tax Returns.

The rollout will continue in stages, with the threshold reducing to £30,000 from April 2027 and £20,000 from April 2028. HMRC has confirmed that further expansion is planned, although start dates have not yet been finalised.

2. What counts as MTD-compatible software?

MTD-compatible software refers to digital accounting or record-keeping software that can maintain business records and submit information directly to HMRC through its approved systems. HMRC publishes and regularly updates a list of recognised software products that meet these requirements.

3. What happens if I don’t comply with Making Tax Digital?

Failure to comply with Making Tax Digital requirements may result in penalties, particularly as HMRC has confirmed stricter late payment and submission rules from April 2025 onwards. Penalties can apply for late submissions, late payments or failure to use compatible software where required.

4. Can an accountant manage Making Tax Digital on my behalf?

Yes, accountants can manage Making Tax Digital obligations for clients, including maintaining digital records, submitting quarterly updates and completing Final Declarations. Many accountants already work with MTD-compatible software and can integrate these processes into existing accounting services.

For small businesses, working with an accountant can help reduce administrative pressure, ensure compliance with evolving rules and provide reassurance as the digital tax system continues to expand.