Corporation Tax Calculator: How Much Will Your Company Pay in 2025/26?
Free corporation tax calculator. Understand the 19% and 25% rates, marginal relief, and how associated companies affect your bill.
Plain-English guides to UK Corporation Tax and CT600 filing.
Free corporation tax calculator. Understand the 19% and 25% rates, marginal relief, and how associated companies affect your bill.
Corporation tax for property companies. Mortgage interest relief, capital gains, allowable expenses, and filing your CT600.
Discover 12 legal ways to reduce your corporation tax bill. From capital allowances to pension contributions, learn how to minimise what your company pays HMRC.
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.
How associated companies change your Corporation Tax thresholds. What counts, what doesn't, dormant company exemption, and how to report them on your CT600.
Step-by-step guide to filing your CT600 without an accountant. What you need, how to calculate tax, and how to avoid mistakes.
How to construct your Corporation Tax payment reference, HMRC bank details, payment methods, and what to do if you use the wrong reference.
How to claim AIA on your CT600 for plant and machinery purchases. What qualifies, what doesn't, and common mistakes that cost small companies money.
How to optimise your salary and dividends mix as a limited company director. Save thousands in tax with the right strategy — and how it affects your CT600.
Missed your CT600 deadline? Learn about HMRC penalties (£100 to 10% surcharges), interest charges, how to appeal, and the fastest way to get back on track.
How IR35 affects your Corporation Tax return. Inside vs outside IR35, deemed payments, and guidance for contractor companies.
R&D tax credits for SMEs: what qualifies, how to calculate the relief, and which CT600 boxes to complete. Plain English guide.