The HMRC Rule Change Most Businesses Still Don’t Know About

20 May 2026

Changes effecting sole traders.

Many UK business owners are aware that tax rules change regularly, but one major HMRC reform arriving in 2026 is still catching thousands of businesses by surprise. The change is called Making Tax Digital for Income Tax (MTD for IT), and it will completely change how many sole traders and landlords report their income to HMRC.

From April 2026, self-employed individuals and landlords earning more than £50,000 annually will no longer submit just one Self Assessment tax return each year. Instead, they will be required to keep digital records and send quarterly updates to HMRC using compatible accounting software.

What makes this rule change significant is that many businesses still rely on spreadsheets, paper records, or annual bookkeeping. Under the new system, HMRC wants businesses reporting income and expenses throughout the year rather than waiting until January.

• The aim is to reduce errors and improve tax accuracy.
• Small businesses may face more administration and stricter deadlines.
• The income threshold will reduce to £30,000 in 2027.
• The threshold will reduce again to £20,000 in 2028.
• Millions more taxpayers will eventually be affected.

Misconceptions.

One of the biggest misconceptions is that HMRC will provide free filing software. In reality, most businesses will need to purchase or subscribe to MTD-compatible software to stay compliant.

The good news is that businesses preparing early can actually benefit from the changes. Cloud accounting software can improve cash flow visibility, automate bookkeeping tasks, and reduce last-minute tax stress.

• Review your income.
• Check your bookkeeping systems.
• Assess your reporting processes.
• Prepare early to avoid penalties, compliance issues, and disruption.

If you are unsure whether your business will be affected, now is the time to review your income, bookkeeping systems, and reporting processes. Getting ahead of the changes today could save both time and money in the future.