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  3. What are the CT600 filing requirements


    4. CT600 Filing Article Series | Know what documents have to be included and in what format they have to be put together for filing company tax returns with HMRC.

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What are the CT600 filing requirements

What documents are to be put together while submitting company tax returns

What documents are required for submitting Company Tax Return to HMRC?

The online Company Tax Return pack filed through the Government Gateway will need to consist of the following attachments:

  • Corporate Tax Return forms (Form CT600) in XML;
  • Corporation Tax computation in iXBRL;
  • Statutory annual accounts of the legal entity in iXBRL (using right taxonomy);
  • Other supporting schedules in pdf.

What are the resources required for submitting Company Tax Return to HMRC?

Filers have to deal with the following steps when preparing iXBRL accounts and filing company tax returns online (CT600) with HMRC :

  • Creating, converting and tagging entity accounts in iXBRL
  • Converting and tagging CT computations in iXBRL
  • Converting other supporting schedules in pdf
  • Producing CT600 return forms in XML
  • Accessing the government gateway to file online (e-filing)


Read Next :

HMRC company tax returns filing | By when should you file CT600 with HMRC?

How To Prepare iXBRL and File CT600

Simple 4-step process to convert your annual financial statements to iXBRL and file company tax returns with HMRC.

1. Sign In

to create your account online and manage iXBRL files

2. Pay and Upload

necessary documents in Excel, Word or PDF format

3. Download

iXBRL package when ready within required turnaround time

4. Submit

CT600 with iXBRL to HMRC. We assist you in filing.



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