HMRC mandatory agent registration opens 18 May 2026 [UK]
UK tax advisers and accountants interacting with HMRC on behalf of clients must register from May 2026. Three-month transition window. Non-compliance carries £5,000+ fines.
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UK tax advisers and accountants interacting with HMRC on behalf of clients must register from May 2026. Three-month transition window. Non-compliance carries £5,000+ fines.