Small Business Tax & Finance

Information Notices

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Anti-avoidance information notices

1 October 2026

Sarah Bradford explains what an AAIN is and when it can be used The legislation governing anti-avoidance information notices (AAINs) is contained in FA 2026, Pt. 6, Ch. 3. It gives HMRC the power to obtain information and documents from persons who they reasonable suspect are connected with the promotion and facilitation of tax

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