Guides
CT600: Everything You Need to Know
A comprehensive guide to the CT600 Corporation Tax Return — what it is, when to file, and how to complete it correctly.
16 February 2026
AIDO Blog
Tips, guides, and news to help UK businesses manage their taxes
Guides
UK Tax Calendar 2025/26: Every Deadline You Need to Know
Never miss a filing deadline again. This comprehensive UK tax calendar for 2025/26 covers Self Assessment, Corporation Tax, VAT, PAYE, and Companies House dates.
16 February 2026
Guides
Filing Your First VAT Return: A Step-by-Step Guide
Filing a VAT return for the first time can feel overwhelming. This step-by-step guide walks you through everything from registration to submission.
16 February 2026
Guides
Profit and Loss Statement Explained: What Every Business Owner Should Know
A plain-English guide to understanding your P&L statement, from revenue to net profit, and how to use it to make better business decisions.
16 February 2026
Guides
VAT Returns Explained: A Beginner's Guide
Everything you need to know about VAT returns in the UK — registration, filing, and Making Tax Digital compliance.
16 February 2026