An exchange traded fund (ETF) are funds that issue shares which are traded on a stock exchange. Because these investments are made within the tax-efficient ISA wrapper, ETF ISAs are not subject to capital gains tax or income tax.
OK, I'll ask differently (and should probably just speak with an ifa but what they heck). If you are expecting to receive more than £30k in a lump sum which CGT would be due for and in a higher rate tax bracket - what is the most tax efficient way of dealing with that.
If a serious question:
https://www.moneysavingexpert.com/savings/isa-guide-savings-without-tax/
What is an ETF ISA?
An exchange traded fund (ETF) are funds that issue shares which are traded on a stock exchange. Because these investments are made within the tax-efficient ISA wrapper, ETF ISAs are not subject to capital gains tax or income tax.