Form

Company Tax Return: IT problems (WT1)

Use form WT1 if you cannot send your Company Tax Return online because of an IT problem with HMRC online services.

From:
HM Revenue & Customs
Published
2 November 2009
Last updated
1 April 2026 — See all updates

Documents

Company Tax Return: IT problems (WT1)

Ref: WT1

PDF, 94.1 KB, 1 page

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Details

From 1 April 2026 you should use commercial software to file annual accounts and Company Tax Returns with HMRC.

You can only file a paper Company Tax Return if you:

You’ll need to complete and submit a WT1 form with a completed paper return if you’ve been unable to send your return online because of an IT problem with HMRC online services.

How to complete the form

You need to:

  1. Download and save the form on your computer.
  2. Open it using the latest free version of Adobe Reader.
  3. Complete it on-screen.
  4. Print it off and send it to HMRC with your paper return.

The form may not work if you try to open it in your internet browser. If the form does not open, contact online services support for more help.

This file may not be suitable if you use assistive technology (such as a screen reader). If you need a more accessible format, email different.format@hmrc.gov.uk and tell us what format you need. It will help if you tell us what assistive technology you use. Read the accessibility statement for HMRC forms.

Email HMRC to ask for the form in Welsh.

Updates to this page

Published 2 November 2009
Last updated 1 April 2026 show all updates

  1. Information about when you can use this form and how to complete it has been updated.

  2. First published.

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