Legal explainer / 09.07.2026
What an HMRC enquiry actually needs from the file
How to separate the documents that decide a tax dispute from the volume that merely surrounds it.
Summary
An enquiry is a request for a file that can answer a defined question. Adding volume is not the same as answering it.
Context
HMRC correspondence often arrives with a wide information request. The useful response is the one that meets the notice, protects privilege, and does not volunteer a theory.
Method
We list the questions actually asked, the documents that answer them, and the documents that would create a new question if sent. That list becomes the working file.
Legal options
Depending on the stage, the next step may be a focused disclosure, a meeting, or advice that the matter is moving toward a different procedure.
Limitations
This is not tax-return preparation and it is not a promise that an enquiry will close on any timetable.
Disclaimer
This note is general information about method. It is not advice on a specific matter and it does not describe a client result.
Reviewed by Priya Raman, Compliance Officer for Legal Practice, on 15 June 2026. Next review due 15 June 2027. This page is general information about the law of England and Wales and is not advice on your situation.