Staying on top of tax and filing deadlines is one of the easiest ways to avoid penalties, interest charges and last-minute stress.

Our UK Accounting Calendar 2026/27 gives you a practical overview of the main dates and deadlines that matter for businesses, employers, sole traders, landlords and limited companies across the UK.

The 2026/27 tax year runs from 6 April 2026 to 5 April 2027. PAYE tax months run from the 6th of one month to the 5th of the next, which is why many payroll and PAYE deadlines work to that pattern.

Whether you are managing payroll, preparing for Self Assessment, filing VAT Returns or planning around Corporation Tax deadlines, this calendar will help you stay organised throughout the year.

UK Accounting Calendar 2026-27

Key accounting deadlines for 2026/27

April 2026

  • 5 April 2026 , end of the 2025/26 tax year.
  • 6 April 2026 , start of the 2026/27 tax year.
  • 6 April 2026 , Making Tax Digital for Income Tax starts for sole traders and landlords who meet the income threshold. GOV.UK says this applies from this date where qualifying income from self-employment and property is over £50,000.
  • 19 April 2026 , deadline for submitting an Employer Payment Summary (EPS) for the final tax month of 2025/26 where needed. HMRC says an EPS must be sent by the 19th of the following tax month for reductions to be applied.
  • 22 April 2026 , electronic deadline for paying PAYE and National Insurance liabilities for the tax month ending 5 April 2026. PAYE is generally due by the 22nd if paying electronically, or the 19th if paying by post.
  • 30 April 2026 , Corporation Tax payment deadline for companies with a 31 July 2025 accounting period end, based on the normal rule of 9 months and 1 day after the end of the accounting period.

May 2026

  • 19 May 2026 , EPS deadline for the tax month ending 5 May 2026, where applicable.
  • 22 May 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 May 2026.
  • 31 May 2026 , deadline for employers to provide employees with their P60 for the tax year ended 5 April 2026.

June 2026

  • 19 June 2026 , EPS deadline for the tax month ending 5 June 2026, where needed.
  • 22 June 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 June 2026.
  • 30 June 2026 , Corporation Tax payment deadline for companies with a 30 September 2025 accounting period end.

July 2026

  • 5 July 2026 , deadline to apply for a PAYE Settlement Agreement (PSA) for the 2025/26 tax year.
  • 6 July 2026 , deadline to submit P11D and P11D(b) forms and provide employees with benefits information for 2025/26.
  • 19 July 2026 , cheque payment deadline for Class 1A National Insurance on expenses and benefits.
  • 22 July 2026 , electronic payment deadline for Class 1A National Insurance.
  • 22 July 2026 , electronic PAYE and NIC deadline for the tax month ending 5 July 2026.
  • 31 July 2026 , second Self Assessment payment on account due for the 2025/26 tax year.

August 2026

  • 7 August 2026 , many businesses and taxpayers will have deadlines falling around this date, but exact obligations depend on the relevant return period.
  • 19 August 2026 , EPS deadline for the tax month ending 5 August 2026, where applicable.
  • 22 August 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 August 2026.

September 2026

  • 19 September 2026 , EPS deadline for the tax month ending 5 September 2026, where needed.
  • 22 September 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 September 2026.
  • 30 September 2026 , Corporation Tax payment deadline for companies with a 31 December 2025 accounting period end.

October 2026

  • 5 October 2026 , deadline to register for Self Assessment if you need to file a return for the previous tax year and have not already registered.
  • 19 October 2026 , EPS deadline for the tax month ending 5 October 2026, where applicable.
  • 22 October 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 October 2026.
  • 22 October 2026 , deadline to pay tax and Class 1B NIC due under a PAYE Settlement Agreement, if paying electronically.
  • 31 October 2026 , deadline for submitting a paper Self Assessment tax return for the 2025/26 tax year.

November 2026

  • 19 November 2026 , EPS deadline for the tax month ending 5 November 2026, where required.
  • 22 November 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 November 2026.

December 2026

  • 19 December 2026 , EPS deadline for the tax month ending 5 December 2026, where applicable.
  • 22 December 2026 , electronic PAYE and NIC payment deadline for the tax month ending 5 December 2026.
  • 31 December 2026 , annual accounts deadline for private limited companies with a 31 March 2026 financial year end, based on the normal Companies House rule of 9 months after the end of the financial year.
  • 31 December 2026 , Corporation Tax payment deadline for companies with a 31 March 2026 accounting period end.

January 2027

  • 19 January 2027 , EPS deadline for the tax month ending 5 January 2027, where needed.
  • 22 January 2027 , electronic PAYE and NIC payment deadline for the tax month ending 5 January 2027.
  • 31 January 2027 , deadline for submitting an online Self Assessment tax return for the 2025/26 tax year.
  • 31 January 2027 , deadline for paying any balancing payment for the 2025/26 tax year.
  • 31 January 2027 , first payment on account due for the 2026/27 tax year, where applicable.

February 2027

  • 19 February 2027 , EPS deadline for the tax month ending 5 February 2027, where applicable.
  • 22 February 2027 , electronic PAYE and NIC payment deadline for the tax month ending 5 February 2027. Where the 22nd falls on a weekend, cleared funds may need to reach HMRC earlier unless using Faster Payments. HMRC specifically flags this issue in its Employer Bulletin.

March 2027

  • 19 March 2027 , EPS deadline for the tax month ending 5 March 2027, where required.
  • 22 March 2027 , electronic PAYE and NIC payment deadline for the tax month ending 5 March 2027.
  • 31 March 2027 , Corporation Tax payment deadline for companies with a 30 June 2026 accounting period end.

April 2027

  • 5 April 2027 , end of the 2026/27 tax year.
  • 6 April 2027 , start of the 2027/28 tax year.
  • Sole traders and landlords with qualifying income over £30,000 for the 2025/26 tax year will generally come into Making Tax Digital for Income Tax from 6 April 2027.

VAT deadlines for 2026/27

VAT deadlines depend on your VAT accounting period, not a single fixed date for every business.

HMRC says the deadline for filing a VAT Return online is usually 1 calendar month and 7 days after the end of the VAT accounting period, and this is usually the deadline for payment as well. Your VAT online account shows your specific due dates.

For example:

  • a VAT period ending 30 June 2026 would normally have a deadline of 7 August 2026
  • a VAT period ending 30 September 2026 would normally have a deadline of 7 November 2026
  • a VAT period ending 31 December 2026 would normally have a deadline of 7 February 2027

If you use the VAT Annual Accounting Scheme, the deadline rules are different, so businesses on that scheme should check their exact filing and payment dates separately.

Companies House deadlines to remember

If you run a limited company, there are important Companies House filing deadlines to keep on top of as well as HMRC deadlines.

  • Annual accounts for a private limited company are normally due 9 months after the end of the financial year.
  • A confirmation statement must usually be filed within 14 days of the end of the review period.

Missing Companies House deadlines can lead to penalties and other compliance issues, so it is worth diarising those dates alongside your tax deadlines.

Making Tax Digital for Income Tax

One of the biggest changes affecting the 2026/27 accounting year is the rollout of Making Tax Digital for Income Tax.

According to GOV.UK, from 6 April 2026, sole traders and landlords with total annual qualifying income from self-employment and property of more than £50,000 must use compatible software to keep digital records and send updates to HMRC. GOV.UK also says the next threshold is over £30,000 from 6 April 2027, based on qualifying income for the previous relevant tax year.

This means that for many unincorporated businesses and landlords, the 2026/27 year is the first time digital quarterly reporting becomes mandatory.

Why keeping track of accounting deadlines matters

Missing deadlines can result in:

  • late filing penalties
  • interest charges
  • avoidable stress
  • poor cash flow planning
  • rushed bookkeeping and payroll errors

A clear accounting calendar makes it easier to plan ahead, stay compliant and keep your business finances under control.

Need help staying on top of your deadlines?

At LT Accounting, we support businesses across the UK with practical, proactive help on bookkeeping, payroll, VAT, Self Assessment, limited company accounts and ongoing compliance.

If you want help keeping on top of your deadlines for 2026/27, get in touch with our team.

Frequently asked questions

The 2026/27 UK tax year starts on 6 April 2026 and ends on 5 April 2027.

For the 2025/26 tax return, the main deadlines falling within the 2026/27 accounting year are 31 October 2026 for paper returns and 31 January 2027 for online returns and payment.

PAYE is usually due by the 22nd of the following month if you pay electronically, or the 19th if you pay by post. EPS submissions that affect what you owe are generally due by the 19th of the following tax month.

VAT Returns are usually due 1 calendar month and 7 days after the end of the VAT accounting period, although special schemes can have different rules.

Corporation Tax is usually due 9 months and 1 day after the end of the accounting period. The Company Tax Return is usually due 12 months after the end of the accounting period.

A confirmation statement must usually be filed within 14 days of the end of the review period.

From 6 April 2026, sole traders and landlords with qualifying income from self-employment and property of more than £50,000 must use Making Tax Digital for Income Tax.