Revenue and Customs: Artificial Intelligence
Commons · Question 13918 · Tabled 29 Jun 2026 · Treasury · Official record
Answered 7 Jul 2026
Question
Asked by Daisy Cooper
To ask the Chancellor of the Exchequer, what assessment she has made of the extent of the use of Large Language Models in providing inaccurate advice to HMRC customers relating to (a) self-assessment and (b) corporation tax returns.
Answer
Answered by Dan Tomlinson, 7 Jul 2026
The Government is committed to helping taxpayers get their tax right. While the use of external Large Language Models can be helpful, they may not always provide accurate tax advice and HMRC has no control over the way these models are trained. HMRC there...