Electric Company Cars: Corporation Tax 2025
Buy an electric car through your company and claim 100% first-year allowance. Learn about BIK rates, capital allowances, and CT savings for EVs in 2025/26.
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Plain-English guides to UK Corporation Tax and CT600 filing.
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Company Losses: Trading vs Non-Trading on CT600
Trading losses, non-trading deficits, capital losses — learn the different types of company loss, how each is relieved, and where they go on your CT600.
Sole Trader vs Limited Company: Full Tax Comparison (2025/26)
Should you incorporate? Tax comparison between sole trader and limited company at every profit level — income tax, NI, dividends.
Every Corporation Tax Relief Available to UK Companies (2025/26 Complete List)
Every corporation tax relief for UK companies in 2025/26 — R&D, creative industry, patent box, capital allowances, and more.
How to File a Nil CT600 Return for a Dormant Company
Step-by-step guide to filing a nil Corporation Tax return for your dormant limited company. Avoid penalties — even dormant companies must file with HMRC.
CT600 Box by Box Guide: Every Section Explained in Plain English
A complete walkthrough of every CT600 box and section. Understand what each field means, which boxes apply to your company, and how to fill them in correctly.
CT600 Filing Checklist — Everything You Need Before You Start
Complete checklist of every document, figure, and detail you need to file your Corporation Tax return. Print it, tick it off, file in 15 minutes.
Your First Company Tax Return — A New Director's Guide to CT600 Filing
Just set up a limited company? Everything you need to know about your first CT600 — when it is due, what to include, and how to file.
What Records Do I Need for My Company Tax Return?
Complete checklist of records and documents needed for CT600 filing. How long to keep them, what HMRC expects, and how to organize everything.