Thank you Nukecad. I assumed they would include IIDB when calculating income but unsure as to how HB is calculated. From what I have read a discount or premium may be applicable due to him receiving enhanced rate of PIP for care. I think the enhanced rate of PIP should also help towards council tax support but LHA not confirmed any changes to this yet but no doubt there will be one! When trying to find out how LHA's calculate HB I have seen two different personal allowances which are applicable - one is the usual £114.85 and other welfare sites state £248 for a couple. The LHA came to visit us in October and granted us a second bedroom allowance given my husband's illness so are well aware of our circumstances. Would be helpful if anyone receiving enhanced daily living component of PIP has received extra help with housing benefit and council tax.
Many thanks again for guidance.