Home / Resources

Key dates and useful links

The deadlines that matter for most of our clients in the 2026/27 tax year. We send reminders well before each one.

Personal tax

DateWhat is due
31 Oct 2026Paper Self Assessment returns for 2025/26
31 Jan 2027Online Self Assessment returns for 2025/26, balancing payment and first payment on account for 2026/27
5 Apr 2027End of the 2026/27 tax year: last day to use this year’s ISA and pension allowances
31 Jul 2027Second payment on account for 2026/27
Within 60 daysCGT return and payment after selling UK residential property

Making Tax Digital for Income Tax

DateWhat is due
7 Aug 2026First quarterly update (quarter to 5 July) for those in MTD from April 2026
7 Nov 2026Quarterly update to 5 October
7 Feb 2027Quarterly update to 5 January
7 May 2027Quarterly update to 5 April

Companies and employers

WhenWhat is due
9 months after year endPrivate company accounts to Companies House
9 months and 1 day after year endCorporation Tax payment for most small companies
12 months after year endCT600 Corporation Tax return
Once a yearConfirmation statement to Companies House
22nd of each monthPAYE and National Insurance paid electronically
1 month and 7 days after quarter endVAT return and payment

Useful links