Research and Development tax relief: apply for Advance Assurance

Use this form to apply for Advance Assurance for Research and Development (R&D) tax relief.


Apply online (sign in using Government Gateway)

Apply by post (fill in on screen, print and post)


If you want to apply for Advance Assurance before your first claim for R&D tax relief you can:

  • apply online
  • fill in the form on-screen (you can save a partly completed form), print and post it to HMRC
  • fill in the form on-screen (you can only save this form once it’s fully completed)

To apply using the online service, you need a Government Gateway user ID and password. If you do not have a user ID, you can create one when you use the service.

Don’t use this form to make a claim for R&D tax relief or to make changes to an existing R&D tax relief claim.

When you’re filling in your application for Advance Assurance you’ll need:

  • your company accounts
  • your company registration documents from Companies House
  • any HMRC correspondence
  • previous company tax returns (not needed for new companies)
  • the name of a main contact, for example a research manager or company director with direct knowledge of the company’s R&D

HMRC may ask the main contact, to discuss your application.

Please send postal forms to:

Local Compliance
I and R Unit Manchester (AA)
Newcastle upon Tyne
NE98 1ZZ

Before you start

The forms that you use to apply by post are interactive (ones that you complete on screen). If you want to be able to save a partly filled in form you must use Adobe Reader to complete it.

Download the latest version of Adobe Reader for free.

To ensure the form opens in Adobe Reader, review your browser settings to make Adobe Reader the default program for opening PDF documents. Alternatively, you can save the document and then open it with Adobe Reader; as a:

  • Windows user, you should right click on the form link then select ‘Save target as’ or ‘Save link as’
  • Mac user, you should right click on the form link then select ‘Save linked file as’

You can then:

  • save the form (the recommended place is in the documents folder)
  • use Adobe Reader to open the form

If the form still doesn’t open, then contact the Online Services helpdesks for more help.

Types of R&D that qualify for relief
Guidance on the types of R&D that qualify for relief.

Kinds of costs you can claim for
Guidance on the types of costs that you can claim R&D relief on.

Research and Development: Advance Assurance
Information about R&D Advance Assurance for small companies and how to apply.

Published 30 November 2015
Last updated 11 May 2017 + show all updates
  1. The business return address has been updated to show new room SO733.
  2. Changed the postal address for the form.
  3. An online service is now available.
  4. An alternative format of the form has been published as a result of feedback from customers.
  5. Added translation