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Tax

Important UK Tax Dates for 2026

A quick reference guide to key deadlines for businesses and individuals.

📅 10 Aug 2026◷ 4 min read✍ ZFK Accountants Team
01Introduction

Why tax deadlines matter

Businesses and individuals can have several different filing and payment obligations during the year.

Knowing which deadlines apply to you gives you more time to prepare records, understand liabilities and avoid unnecessary last-minute pressure.

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Good to know

Your exact filing obligations depend on your circumstances, accounting period and tax position, so maintain a personalised deadline calendar.

02Personal Tax

Self Assessment deadlines

Individuals within Self Assessment should make sure they understand the filing and payment dates that apply to their tax return.

Preparing your information early can make the filing process considerably easier.

03VAT

VAT return deadlines

VAT deadlines are linked to a business's VAT accounting periods.

Businesses should check their individual VAT account and accounting records to confirm the dates that apply to each return.

04Companies

Annual accounts and Corporation Tax

Limited companies have separate responsibilities relating to annual accounts, Corporation Tax and company reporting.

Maintaining an organised year-end timetable helps ensure the different requirements are managed correctly.

05Planning

Create a tax deadline calendar

Rather than relying on memory, maintain a calendar containing your accounting and tax deadlines.

Using reminders well in advance of filing dates gives you time to gather information and resolve questions before submissions are due.

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