Key UK tax dates & deadlines 2026/27
The tax year runs from 6 April 2026 to 5 April 2027.
Some dates depend on your own year end. Corporation Tax, company accounts and VAT deadlines are set relative to your accounting period, so the exact dates differ per business. The fixed calendar dates below (Self Assessment, payroll) apply to everyone. Talk to Buzz for your specific deadlines.
- Self Assessment
- PAYE & payroll year end
- PAYE and National Insurance payment, 22nd of each month
- Making Tax Digital starts
- MTD quarterly update
- Last day of the tax year
- Outside the 2026/27 tax year
Dates that apply to everyone
April 2026
Making Tax Digital
MTD for Income Tax begins for sole traders and landlords with qualifying income over £50,000
Making Tax Digital guideAugust 2026
Making Tax Digital
Quarter 1 update (6 Apr – 5 Jul), for sole traders and landlords in MTD from April 2026
Check your MTD start dateOctober 2026
Self Assessment
Deadline to register for Self Assessment if you're new to it (for 2025/26 income)
Registering for Self AssessmentSelf Assessment
Deadline for a paper tax return for 2025/26
Paper returnNovember 2026
Making Tax Digital
Quarter 2 update (6 Jul – 5 Oct), for sole traders and landlords in MTD from April 2026
Check your MTD start dateJanuary 2027
Self Assessment
Deadline for the online tax return for 2025/26, and to pay any tax owed plus your first payment on account
Online return and paymentFebruary 2027
Making Tax Digital
Quarter 3 update (6 Oct – 5 Jan), for sole traders and landlords in MTD from April 2026
Check your MTD start dateApril 2027
Tax year
The 2026/27 tax year ends
End of the tax yearMaking Tax Digital
MTD for Income Tax extends to those with qualifying income over £30,000
The new tax yearMay 2027
Making Tax Digital
Quarter 4 update (6 Jan – 5 Apr), for sole traders and landlords in MTD from April 2026
Check your MTD start datePAYE & payroll
Give employees their P60 for 2026/27
P60July 2027
PAYE & payroll
Report expenses and benefits (P11D) for 2026/27
P11DPAYE & payroll
Pay any Class 1A National Insurance on benefits
Class 1A National InsuranceSelf Assessment
Second payment on account for 2025/26 due
Second payment on account
Corporation Tax & Companies House
For limited companies, counted from your own year end.
File your annual accounts with Companies House (private companies)
Company accountsPay your Corporation Tax
Corporation Tax paymentFile your Corporation Tax return (CT600) with HMRC
File your confirmation statement with Companies House
Confirmation statementVAT
- 1 month + 7 days after each VAT period ends
- VAT return filed and payment made (standard quarterly cycle, under Making Tax Digital) VAT return
- Ongoing
- Register for VAT within 30 days of your taxable turnover exceeding £90,000 in any rolling 12 months VAT registration
PAYE & payroll
- On or before each payday
- Submit your Full Payment Submission (FPS) to HMRC
- 22nd of the following month
- Pay PAYE tax and National Insurance to HMRC (electronic payment; 19th if paying by post) PAYE monthly payment
Our managed payroll service files these for you every pay run.
Useful tools and reading
Source: gov.uk Self Assessment, VAT, PAYE, Corporation Tax and Companies House deadline guidance, checked July 2026. Dates that fall on a weekend or bank holiday may be treated as due the next working day for some taxes.
Let Buzz keep track of the deadlines for you
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