HMRC released guidance on 28 January 2026 for developers of tax software that use generative AI. The guidance sets five mandatory principles—transparency, reliable source data, human oversight, security/GDPR compliance, and ethical AI with continuous auditing—to ensure AI outputs are trustworthy and legally grounded. Compliance requires clear disclosure, audit trails, limited data sources, and ongoing monitoring of models.
The guidance lists transparency, reliable source data, human oversight, security/GDPR compliance, and ethical AI with continuous auditing as the five mandatory principles.
HMRC published the guidance on 28 January 2026.
Acceptable data sources are official HMRC publications, primary legislation, and established case law; generic web content is not acceptable.
Software must prompt users to review outputs, allow corrections, provide challenge mechanisms, flag complex scenarios, and recommend professional advice.
HMRC expects compliance with UK GDPR, privacy by design, a secure software development lifecycle (SSDLC), and clear visibility to users on how their data is processed.
Get VAT and indirect tax news delivered to your inbox twice a week.
No spam. Unsubscribe anytime.
Pinsent Masons · about 22 hours ago
A parliamentary question and Treasury response have clarified that paid entries in UK prize draws are not exempt from VAT and will be taxed at the standard 20% rate. The voluntary code of conduct for prize draw operators, aimed at improving consumer protection, will take full effect on 20 May 2026. The sector is valued at £1.3 billion annually.
ICAEW · 1 day ago
The Supreme Court’s December 2025 ruling reaffirmed the BLP barrier, stating that VAT incurred on fees for share sales remains non‑deductible because of a direct and immediate link to an exempt supply. The decision effectively ends the argument that share‑sale proceeds can be used to recover VAT on overheads. Businesses must therefore plan VAT recovery strategies early and seek specialist advice before raising capital through share sales.
GOV.UK · 1 day ago
This HMRC internal manual provides guidance on the VAT cost sharing exemption, detailing the conditions, interpretation, and procedural aspects for applying the exemption. It serves as a reference for HMRC staff and VAT professionals on how to apply the exemption in practice.
GOV.UK · 4 days ago
This guidance handbook provides technical instructions for traders and businesses on using the Simplified Customs Declaration Process (SCDP). It outlines procedures for simplified declarations, frontier declarations, transit movements, supplementary declarations, and other related customs processes, while emphasizing that users remain liable to meet all legal requirements.
BusinessGreen · 5 days ago
A UK tax tribunal has ruled that VAT on public electric vehicle charging should be reduced to 5%, matching the rate already applied to home charging. The decision covers charging at service stations, supermarkets and residential streets, replacing the current 20% rate for public chargers.
VatCalc · 5 days ago
A UK First‑tier Tribunal has ruled that public EV charging can qualify for the 5% reduced VAT rate if the supply does not exceed 1,000 kWh per customer per month at a specific location, overturning HMRC’s earlier stance. The decision could lower charging costs and may influence the Treasury’s consideration to cut VAT on public charging to 5% ahead of the 2028 pay‑per‑mile levy. HMRC’s 2021 guidance still applies a 20% rate to public charge points, and the Treasury is reviewing VAT reforms to offset the levy’s impact.
