PDF copies of your filing documents

Last updated: 9 August 2026

Short version. Your filing record contains readable PDFs of the CT600 form, annual accounts and tax computations, as well as the XML and iXBRL files sent to the regulators. Use the PDFs to review, print and share the filing. Keep the XML and iXBRL files as the submitted originals.

1. What you get

Your filing record includes a PDF for every document in your filing:

Your Company Tax Return (official HMRC form): a readable copy of the official form, populated from the CT600 XML sent to HMRC. A long first period has one form per return.
Full accounts (HMRC copy): the annual accounts attached to your CT600, including the profit & loss account.
Companies House accounts: the version filed on the public register (for trading companies the profit & loss account is withheld, as the law allows). See what is public in company accounts.
Tax computation: the working behind your Corporation Tax figure, both the readable summary and a PDF of the iXBRL computation attached to your return.

2. PDFs vs the iXBRL files

HMRC and Companies House require accounts and computations in iXBRL, a machine-readable web format. Those .xhtml files in your filing record are the legally-submitted originals, and we keep them for your records.

The accounts and iXBRL computation PDFs are direct prints of their corresponding iXBRL files. The CT600 PDF is different because HMRC receives the return as XML. We populate the official form from that submitted XML, so it shows the same box values in a familiar layout. The XML remains the authoritative submitted file.

3. Your carry-forward figures live in the tax computation

The tax computation is worth keeping for one reason beyond the record. It ends with a section headed Losses carried forward to the next period, listing any trading losses, UK property business losses and capital losses the company still has available. Those are the exact figures to enter next year, so this is the document to open when you start your next return.

Do not take them from the CT600 instead. The loss boxes on the CT600 (780, 805 and 825) are headed amount arising, so they report what happened in that period, not the running total you still have. The two figures are different whenever you used part of a loss or brought one forward, which is most of the time. The computation is the one that answers the question you are actually asking.

4. Where to find them

Open your filing and scroll to Your filing record. Each document row has View (opens in your browser) and Download. PDFs open directly in the browser's built-in viewer, so no special software is needed.

The PDFs are ideal for sharing: send the full accounts PDF and tax computation PDF to your accountant, or the accounts to a lender or grant provider who asks for "a copy of your filed accounts". They present the same figures in a readable form. Keep the XML and iXBRL files as the submitted originals.