Confusion over IHT404 and IHT405

EgremontRusset

I'm in the process of completing IHT400 for my father's estate.  As well as his own home, he was joint owner of another house.  IHT404 (jointly held assets) seems to cover this, but a note at the top of the form says that for houses, land etc, IHT405 should also be completed with additional details of the property.  However, the schedule selection tick boxes at the start of IHT400 seem to suggest IHT405 is just for solely owned property.

If I add the jointly owned property to both IHT404 and IHT405, the main problem is both IHT404 and IHT405 both request the values to be copied into separate boxes on IHT400, with the result that the shared property gets added in twice in the calculation.

This can't be a particularly rare situation, so I'm wondering if I'm missing something obvious here?

I'm drawn towards actually ignoring the comment at the top of IHT404 about also completing IHT405 with the shared property, and just making sure that any additional info asked for IHT405 is shown on IHT404 for the jointly owned property. (Actually, there will also be a valuation survey report included for the joint property that will include all this info anyway)

Any thoughts?

EgremontRusset

Thinking some more, perhaps I should add the joint property details to IHT405, but leave the values columns blank and add a note to say value is shown in IHT404.

Still keep thinking I must be missing something though because the form instructions appear so contradictory on this point