Psamathe
Squire
I don't see a problem with that or even getting rid of the threshold altogether.£325k joint threshold would bring in almost anyone who owns even a modest house.
The estate is money and assets owned by those in need of care. Why should they get to keep their money and assets and make high demands on the state just so they can give their wealth away.
For some/many more wealthy the issue of cash vs assets (eg house) arrises. So state taking more through IHT is in effect getting round the cash poor/asset rich quandary by delaying taking anything until after the holder/owner of those assets no longer has any use for them. Otherwise, in effect the beneficiaries are benefitting from the state where the recipient of the care can actually afford their own care.