AH1580 - General Commissioners: Appeals to the High Court


Court Decisions generally which change a previously held view of the law: Self Assessment

  1. Taxpayer effect

Where a Self Assessment Return has been submitted prior to a Court decision which amends an earlier view of the law, if the taxpayer fails to amend the return within the subsequent amendment window the failure could constitute negligence within the meaning in S97 and thus negligence under S29(4) giving rise to a discovery assessment scenario. - seek advice from Tax administration Advice, Stockport.

Where a taxpayer has not already made Returns at the date of the decision, s/he should complete Returns in accordance with the revised view of the law whether for the year in which the decision is handed down or for any other year.

  1. Revenue effect

Within the enquiry window, HMRC is entitled to open an enquiry into a Return to give effect to a revised view of the law even where the Return was submitted prior to the date of a decision which amends an earlier held view of the law and the Return was made on the basis of that earlier view. This is the case even where the change will not be to the taxpayer’s advantage.

If there is an open enquiry into a Return which was submitted prior to the date of the decision and which was opened for some other reason, then the effect of the decision should be taken into account when closing the enquiry, again even where this is not to the taxpayer’s advantage.

Where an enquiry has not yet been opened, the implications of the decision are just one factor to be taken into account in the risk assessment when deciding whether or not to open one.

Exceptionally, as a consequence of the effect of a Court decision, you may become aware that there is an obvious error or omission in a Return you are dealing with. You may then consider correcting the Return within the nine-month window for Revenue corrections.