Employer NIC: Corporation Tax Deduction Guide
Is employer NIC an allowable deduction for corporation tax? Yes. Learn how employer National Insurance works, current rates, the Employment Allowance, and how to claim on your CT600.
Plain-English guides to UK Corporation Tax and CT600 filing.
Is employer NIC an allowable deduction for corporation tax? Yes. Learn how employer National Insurance works, current rates, the Employment Allowance, and how to claim on your CT600.
How does corporation tax work for investment companies? Guide to holding investments through a limited company — dividends, capital gains, property, and filing your CT600.
CT600 vs annual accounts: one goes to HMRC, one to Companies House. What each is, when they are due, and how they relate.
Every corporation tax relief for UK companies in 2025/26 — R&D, creative industry, patent box, capital allowances, and more.
How to claim work-from-home expenses through your limited company. Flat rate method, actual costs, and allowable expenses.
Corporation tax for startups. Registration, deadlines, expenses, R&D relief, first CT600 filing, and mistakes to avoid.
How to use corporation tax group relief to share losses between companies. 75% ownership test, consortium relief, and filing.
Find out whether your limited company needs to file a CT600 Corporation Tax return with HMRC. Covers dormant companies, new companies, losses, and exemptions.
How UK companies pay corporation tax on crypto. Buying, selling, mining, staking, DeFi, and NFTs — what goes on your CT600.
Should you incorporate? Tax comparison between sole trader and limited company at every profit level — income tax, NI, dividends.
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.
Free corporation tax calculator. Understand the 19% and 25% rates, marginal relief, and how associated companies affect your bill.