If you run your business as a limited company, you’ll need to pay Corporation Tax each year on the company’s profits. Here are the key facts you need to know about filing your Company Tax Return and paying any Corporation Tax due.

What is the deadline for paying Corporation Tax?

The deadline for paying Corporation Tax depends on your company’s financial year. Enter the date when your company’s financial year ends below:

Enter the date when your company’s financial year ends below:

Company's financial year ends:

You need to file annual accounts for this financial year with Companies House by:

You need to pay any Corporation Tax due for this financial year to HMRC (or tell HMRC that no payment is due) by:

You need to file a Company Tax Return for this financial year with HMRC by:

Note: Most small limited companies find it more efficient to file their annual accounts and their Company Tax Return at the same time.

What are the penalties for late filing or late payment?

If you don’t file your Company Tax Return by the deadline, you will have to pay penalties.  

If your return is a day late  the penalty is £100, plus a further £100 if the return is more than three months late. If your tax return is six months late, HMRC will write telling you how much Corporation Tax they think you must pay. This is called a ‘tax determination’ and you can’t appeal against it. 

Next Steps

Read the Corporation Tax overview on GOV.UK

You don’t get a bill for Corporation Tax. There are specific things you must do to work out, pay and report your tax, explained here.

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How much Corporation Tax will I pay?

Corporation tax is a tax on the profits of limited companies. The company (not HM Revenue and Customs) will work out how much corporation tax is payable on the profits. 

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