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Form

Tell HMRC your Stamp Duty Land Tax scheme reference number

Use form AAG4(SDLT) to tell HMRC of a scheme reference number given to you for a Stamp Duty Land Tax (SDLT) avoidance scheme you have used.

Updates to this page

From:
HM Revenue & Customs
Published:
1 October 2014
Last updated:
20 August 2026
Show all updates

  1. Removed the option to submit the form by email. You can fill in the form on-screen, print it off and post it to HMRC.

  2. The address to send the postal form to has been updated.

  3. The form has been updated to make it clearer for customers to complete and to show a new address for returning the completed postal form.

  4. An online forms service is now available.

  5. First published.

Documents

Use the postal AAG4(SDLT) form to tell HMRC your tax avoidance scheme reference number

Ref: AAG4(SDLT)

PDF, 203 KB, 3 pages

This file may not be suitable for users of assistive technology.

Request an accessible format
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email different.format@hmrc.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Read the accessibility statement for HMRC forms

https://www.gov.uk/guidance/accessibility-statement-for-hmrc-interactive-forms

Details

Use this form if you expect to have an SDLT advantage and have received an 8-digit scheme reference number from any of the following:

  • HMRC
  • a scheme promoter
  • a person involved in the supply of the arrangements
  • the client of a scheme promoter

You can tell HMRC the scheme reference number by completing the postal version of the form.

Email HMRC to ask for this form in Welsh (Cymraeg).

Before you start

The postal form is interactive (one that you complete on screen) and you must use Adobe Reader to complete it.

Contact the Online Services Helpdesk if you have problems opening or saving the form.

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