Taxpayers who have participated in Inheritance Tax avoidance schemes must now notify HMRC using form AAG4(IHT), providing the scheme reference number they received. This form enables HMRC to track and monitor participation in such schemes for tax compliance purposes. The requirement applies to anyone who has used an Inheritance Tax avoidance arrangement and received a corresponding reference number from their scheme provider.
Source: HMRC (GOV.UK) – Read the original