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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.

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

Documents

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

Ref: AAG4(SDLT)

PDF, 203 KB, 3 pages

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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.

Updates to this page

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.

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