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MTD Sole Trader Self Assessment 11 min read

April 2026: The New Quarterly Tax Deadlines Sole Traders Must Know

From April 2026, the way many sole traders report their income to HMRC will change significantly.

From April 2026, the way many sole traders report their income to HMRC will change significantly.

Instead of submitting a single tax return once a year, many businesses will begin reporting their earnings four times a year under the government’s Making Tax Digital for Income Tax Self Assessment (MTD ITSA) programme.

For some people this will feel like a major shift. For others, particularly those already using accounting software, it may simply mean sending regular updates rather than dealing with everything in January.

Either way, understanding the new quarterly deadlines and reporting rules will be essential for anyone running a small business or earning self-employed income.

Why HMRC Is Introducing Quarterly Reporting

The move to quarterly reporting is part of a wider effort to modernise the UK tax system.

The goal of Making Tax Digital is to reduce errors, improve accuracy, and move the tax system away from manual record-keeping and once-a-year reporting.

Currently many sole traders:

  • Keep paper records
  • Update spreadsheets once a year
  • Submit a tax return just before the 31 January deadline

This approach often leads to rushed bookkeeping, mistakes, and unexpected tax bills.

Under the new system, businesses will be expected to:

  • Keep digital records of income and expenses
  • Submit quarterly updates to HMRC
  • Use MTD-compatible accounting software

HMRC believes this will make the system more accurate and give taxpayers a clearer picture of their tax position during the year rather than after it.

Who Will Be Affected in April 2026

The new rules will not apply to everyone immediately.

From 6 April 2026, Making Tax Digital for Income Tax will apply to individuals who:

  • Are self-employed or landlords
  • Have business or property income above £50,000 per year
  • Currently submit a Self Assessment tax return

This includes sole traders, freelancers, contractors, self-employed professionals, and landlords with significant rental income.

The programme will then expand further:

Start DateIncome Threshold
April 2026£50,000+
April 2027£30,000+

If your turnover is close to these levels, it is wise to begin preparing well before the deadline.

The Four New Quarterly Reporting Periods

Under the new system, each tax year will be divided into four reporting periods.

For most taxpayers, the reporting calendar will look like this:

PeriodCoversDeadline
Quarter 16 April – 5 July5 August
Quarter 26 July – 5 October5 November
Quarter 36 October – 5 January5 February
Quarter 46 January – 5 April5 May

Each submission is known as a quarterly update.

These updates summarise:

  • Income earned during the period
  • Allowable business expenses
  • Profit estimates

They are not a full tax return, and they do not require the same level of detail as the final annual submission.

The Final End-of-Year Declaration

Even with quarterly updates, there will still be a final step each year.

At the end of the tax year, taxpayers must submit a Final Declaration confirming their total income and tax position. This replaces the traditional Self Assessment return.

During the final declaration you can:

  • Make adjustments to quarterly figures
  • Include other income such as employment, dividends or savings
  • Claim allowances and reliefs

The 31 January deadline will remain in place for this final step.

This means the overall structure becomes:

  • Four quarterly updates during the year
  • One final declaration after the tax year ends

Will Tax Have to Be Paid Four Times a Year?

Many people worry that quarterly reporting means quarterly tax bills.

At present, this is not the case.

Most taxpayers will continue to pay their tax:

  • 31 January
  • 31 July (payment on account)

The quarterly updates are simply reports of income and expenses. They help HMRC estimate your tax liability but do not create immediate payment demands.

That said, having a clearer view of profits throughout the year may help businesses set aside money for tax more gradually, avoiding the common January cashflow shock.

What Sole Traders Should Start Doing Now

Although April 2026 might seem distant, preparing early will make the transition much easier.

Move towards digital record keeping

Many small businesses still rely on paper receipts or basic spreadsheets. Under Making Tax Digital, records must be kept digitally and submitted through compatible software.

Popular accounting tools already support this approach.

Update bookkeeping regularly

Rather than leaving everything until the end of the year, it becomes important to keep records updated throughout the year.

Monthly bookkeeping is likely to become the new normal.

Check whether you will exceed the threshold

If your income is approaching £50,000, there is a strong chance you will fall within the first group affected.

Understanding this early helps you choose suitable software and adjust your processes before the change takes effect.

Potential Benefits of the New System

Although quarterly reporting sounds like extra work, it may actually improve financial awareness for many businesses.

Possible advantages include:

  • Better visibility of profits throughout the year
  • Earlier estimates of tax liabilities
  • Fewer last-minute tax return problems
  • Improved cashflow planning

Many accountants already encourage clients to keep digital records and update their accounts regularly. Making Tax Digital simply formalises this process.

The Bottom Line

From April 2026, many sole traders earning over £50,000 will begin submitting quarterly income updates to HMRC.

The key changes include:

  • Four reporting deadlines each year
  • Mandatory digital record keeping
  • A final declaration replacing the traditional tax return

For businesses that prepare early, the shift may be relatively straightforward. The important thing is to begin organising records, understanding the deadlines, and ensuring your bookkeeping system is ready before the new rules arrive.