Filing Company Tax Returns

All UK companies must file their Corporation Tax return online using commercial software. This software needs to format your accounts in a specific technical format called iXBRL, which HMRC systems can process automatically. Choosing the right software package will depend on y...

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Every limited company that receives a notice from HMRC must file a Company Tax Return (form CT600), even if it made a loss or has no tax to pay. You need to file online using commercial software, calculate your Corporation Tax bill, and meet strict deadlines to avoid penalties...

5 min read

If you use an accountant or tax agent to help manage your company's affairs, they'll use HMRC's Corporation Tax for Agents online service to handle your tax returns and view your company's tax information. This service allows your agent to file returns, check what you owe, and...

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When you submit your Company Tax Return, you must include your company accounts and tax computations in a specific digital format. Understanding what HMRC requires—and how it needs to be formatted—will help you avoid delays and potential penalties.

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If you've spotted an error on your Company Tax Return after filing it, you may need to amend it to avoid HMRC opening an enquiry. The process for making corrections depends on when you filed and what type of error you've made, but in most situations you can amend your return o...

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When you set up a limited company, your first set of accounts and tax return work differently to later years. Your first accounts typically cover more than 12 months, and you may need to file two separate Company Tax Returns to cover this period. Understanding these requiremen...

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