Revenue and Customs: Artificial Intelligence

Summary

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.

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Timeline

1. 29 June 2026

   Written question

   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.

   Source: Commons

2. 7 July 2026

   Answer

   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...

   Source: Written answer

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• · Treasury · Answering body

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