Inheritance tax (IHT), gifting and not knowing how much is enough to maintain their lifestyles in later life are the top three financial concerns of wealthy Britons, according to new research from RBC Wealth Management.

The research, which polled 500 Britons with at least £500,000 in investable assets, found that across generations, IHT remains the number one concern despite ongoing speculation of a potential tax cut, jumping from 27 pe...