How to complete HMRC's Additional Information Forms


HMRC’s introduction of the online “Additional Information” forms (AIFs) is one of the biggest shake-ups of the R&D tax relief scheme in years. From 8th August 2023, ANY RD claim submitted has be accompanied by an AIF, so understanding what they are and how to complete them is vitally important.

The course is structured as a series of short videos, with a brief quiz after each one, to test your knowledge.

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Course Outcomes

In this course, we take you through the most important aspects of the form. We will :

  • explain the structure of the form and how to answer HMRC’s questions,
  • give you detailed guidance on what to write in the free-text boxes,
  • provide templates you can use with your clients to gather the necessary information.

01: Introduction

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Course Stats


minutes of video


assessment questions


verifiable CPD unit

08: Completing the 'Details of the Claim' section (Part 2)

Want to watch one of the course videos for free?

In this video we look at how to complete the few questions about your projects – how many are there, the project name, and the area of science or technology.

Get extra help with the Additional Information Form

As a member of The R&D Community you’ll get access to our R&D Helpline. If you’re stuck at any point while completing the Additional Information Form, you can send us an email or phone for help.

We’ll get back to you quickly with an answer, so you can keep making progress.