Guides
UK tax deadline guides.
Plain-English explainers for every UK filing and payment date, written for company directors, sole traders and the accountants who look after them. Each guide links to the GOV.UK rules it is based on. When you are ready, work out your own dates with the deadline generator.
Companies House ·
Confirmation Statement 2026: Deadlines, Fees & Identity Verification
The 14-day filing deadline, the £50 fee, director identity verification, and what happens if you do not file.
PAYE ·
PAYE Deadlines & Employer Tax Obligations: Complete UK Guide 2026/27
Monthly payment deadlines, RTI submissions, employer NIC rates, Employment Allowance, P11D reporting and penalties for UK employers.
Making Tax Digital ·
Making Tax Digital for ITSA: Complete Guide 2026
Everything self-employed individuals and landlords need to know about MTD for Income Tax — quarterly submissions, deadlines, software, and penalties.
Calendar ·
Complete UK Tax Deadlines for 2026/27
Every statutory filing and payment date for the 2026/27 tax year, including MTD for ITSA.
VAT ·
VAT Registration: Complete UK Guide for 2026/27
Everything UK businesses need to know about VAT registration — thresholds, MTD requirements, return deadlines, and penalties.
Corporation Tax ·
Corporation Tax: Complete UK Filing Guide 2026/27
Everything UK directors need to know about Corporation Tax — rates, CT600, deadlines, expenses, and penalties.
Self Assessment ·
Self Assessment Deadline 31 January 2027: Dates, Penalties & Filing Checklist
Key Self Assessment dates for the 2025/26 tax year, late filing penalties, payments on account and a filing checklist.
Checklist ·
Accountant Checklist: What Your Accountant Needs Before Each Tax Deadline (2026/27)
The documents and information your accountant needs well before each UK tax deadline.
Companies House ·
What Happens If You Miss Your Companies House Accounts Deadline? (2026 Guide)
Companies House late filing penalties, the consequences of missing the accounts deadline, and how to put it right.
Deadlines ·
Most Commonly Missed Tax Deadlines in the UK (2026 Guide)
Which tax deadlines UK businesses miss most often, and how to avoid the penalties.