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File your Company Tax Return with HMRC, and your company accounts with Companies House
How to prepare a Company Tax Return for your limited company or unincorporated association - deadlines, corrections and penalties
Your company or association must file a Company Tax Return if you get a…
You’ll have to pay penalties if you do not file your Company Tax Return by…
You must usually make any changes (‘amendments’) within 12 months of the…
Accounts for Companies House and Company Tax Returns for HMRC - what you must send, deadlines, filing separately or together
After the end of its financial year, your private limited company must…
You file your accounts with Companies House and your Company Tax Return…
You can apply to extend your accounts filing deadline with Companies House…
Find out about making a Company Tax Return, what you need to include and who needs to submit a return.
Find Companies House-recognised filing software to manage your company accounts, returns and tax accounts
How to file annual accounts with HMRC and Companies House
How to line up your reporting dates for accounts and Company Tax Returns at the end of your limited company's first year
If you don't file your return, HM Revenue and Customs (HMRC) will estimate how much Corporation Tax to pay. This is called 'determination'.
Find out if you can use the free online filing service to file your Company Tax Return with HMRC and accounts with Companies House.
How to complete your CT600 Company Tax Return form for Corporation Tax and what information you need to include.
Find out what the Corporation Tax for Agents online service is for, what you can do in the service and how to do it.
What detailed information you need to send to HMRC to support your Research and Development (R&D) tax relief claim, and when and how to submit it.
When your company or organisation pays Corporation Tax - paying, reporting and dormant companies
Find out about paying Corporation Tax, instead of Income Tax, if you’re a non-UK resident company with UK property income.
Submit a full return if your company’s or group’s interest deductions and financing costs are restricted, or an abbreviated return if they are not.
Self Assessment tax returns - deadlines, who must send a tax return, penalties, corrections and returns for someone who has died.
How to send information to Companies House through our extensible markup language (XML) schemas, by purchasing software or developing your own.
What you need to do or know if your company is sold, stops trading or is being wound up for Corporation Tax purposes.
How to file your company annual accounts with Companies House
Find out about being 'active', trading and non-trading, and being dormant if you’re a new or existing company or organisation.
Don’t include personal or financial information like your National Insurance number or credit card details.
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