Key Tax Dates for Sole Traders in 2026/27 (UK Guide)

Strata Management Support Ltd
2 days ago
2 min read

Staying on top of tax deadlines is essential for sole traders, especially with the introduction of Making Tax Digital (MTD) from April 2026. Missing key dates can lead to penalties, interest charges, and unnecessary stress, so having a clear timeline is more important than ever.

This guide outlines the most important tax dates for sole traders in the 2026/27 tax year, including both traditional Self Assessment deadlines and new MTD reporting requirements.

Tips to Stay on Track

To manage your tax obligations effectively:

Use digital accounting software to track deadlines and submissions
Set reminders for key dates throughout the year
Keep records updated regularly rather than leaving everything until year-end
Work with an accountant to ensure full compliance

Why work with Strata Support

Strata Management Support Ltd is your local, hands on accountancy firm. Specialising in sole traders and small limited companies, we provide practical advice. Based in the heart of England - Kenilworth, Warwickshire, we support businesses across the Midlands and the UK with both their compliance and strategy.

Making Tax Digital (MTD) Key Dates

From April 2026, sole traders earning over £50,000 must start reporting under MTD for Income Tax. To find out more, take a look at our blog: Making Tax Digital for Sole Traders: What You Need to Know in 2026

Quarterly reporting deadlines (2026/27):

7 August 2026: Quarter 1 submission for the trading period 6 April – 5 July
7 November 2026: Quarter 2 submission for the trading period 6 July – 5 October
7 February 2027: Quarter 3 submission for the trading period 6 October – 5 January
7 May 2027: Quarter 4 submission for the trading period 6 January – 5 April

End-of-year deadlines:

31 January 2027: Final declaration for the 2025/26 tax year
31 January 2028: Final declaration for the 2026/27 tax year

Tax payment dates:

31st July 2026: Second payment on account for the 2026/27 tax year (based off your 2025/26 tax return)
31st January 2027: Final Tax payment for 2026/27 and your first payment on account for the 2027/28 tax year

How we can help

The 2026/27 tax year marks a major shift for sole traders, with Making Tax Digital changing how and when you report your income. While the number of deadlines increases, good preparation and the right support can make the process much more manageable.

If you're getting confused or stressed, Strata Support can help. Get in touch today and let's have a chat!