Company Tax Return (CT600) vs Annual Accounts: What's the Difference?
CT600 vs annual accounts: one goes to HMRC, one to Companies House. What each is, when they are due, and how they relate.
Plain-English guides to UK Corporation Tax and CT600 filing.
CT600 vs annual accounts: one goes to HMRC, one to Companies House. What each is, when they are due, and how they relate.
Got a CT600 late filing penalty? You may be able to appeal. Step-by-step guide to HMRC penalty appeals, reasonable excuses, and time limits.
File your CT600 without an accountant in 2026. What you need, how to prepare accounts, calculate tax, and submit to HMRC.
HMRC charges interest on late corporation tax at base rate + 4% — currently 7.75%. Learn current rates, how interest is calculated, and how to avoid it.
How to use corporation tax group relief to share losses between companies. 75% ownership test, consortium relief, and filing.
CT600 supplementary pages explained: CT600A through CT600P. Find out which ones your company needs and how to complete them.
HMRC free CT600 filing ends 31 March 2026. Compare the best alternatives by price, features, and ease of use.
What happens to your CT600 when you change your accounting period? Guide to the rules, restrictions, and filing implications.
Can't afford your corporation tax bill? Learn how to set up an HMRC Time to Pay arrangement and avoid penalties.
Company struck off or dissolved? You may still owe corporation tax. When a final CT600 is required and how to restore a company.
How UK companies pay corporation tax on crypto. Buying, selling, mining, staking, DeFi, and NFTs — what goes on your CT600.
How to claim a corporation tax refund from HMRC. Covers overpayment, amended returns, loss carry-back, and how long refunds take.