Any delay or lack of co-operation by an agent is deemed to be
the responsibility of the taxpayer. It is, however, not uncommon
for the client to be under the impression that the agent is
attending to HMRC enquiries when the agent is doing nothing, or
very little.
If you have reason to believe that a case is lagging because
of
you should write direct to the taxpayer (with a copy to the agent) reminding the taxpayer of the terms of leaflet IHT 13 and ask for quicker and more effective co-operation. If a complaint ( IHTM02241) is made, the answer should be that the Department is bound to remind the taxpayer of the effect that delay may have upon the amount of any interest (if applicable) and penalty which may ultimately be sought. This is in fairness to the taxpayer concerned and to taxpayers in general.