Inheritance Tax (IHT) has been a hot topic recently, with the release of a "radical" report full of proposals that will affect "every single person in the UK," according to Anthony Nixon, an inheritance tax specialist at Irwin Mitchell.

However, these are not the only proposals relating to IHT. A bill has been introduced that may have cohabiting siblings rejoicing as it would give them the same rights as married couples in terms of IHT exemptions. But other cohabiting households will still face a la...