UK HMRC has updated its guidance on the statutory requirements for the disclosure of tax avoidance schemes (DOTAS). The guidance provides instructions on determining whether an arrangement or proposal designed to obtain a tax or national insurance contribution advantage must be disclosed to HMRC. The main update is the addition of a new Section 21A, which concerns penalties under sections 315 and 315A FA 2004, determined by HMRC on or after 18 March 2026. Some of the key points include:
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