Investment & Investing

Bollocks.

Any interest you earn from bank accounts, savings accounts, credit union accounts, building societies, corporate bonds, government bonds and gilts is covered.

dividend income from shares or funds is not included in the allowance.

https://www.moneysavingexpert.com/savings/personal-savings-allowance/

Assume capital gains income from shares and funds won't be included either... and is simply capital gains.

So yeah, with £20k of cash just find the highest paying product you can, unless you see yourself having a shit tonne of cash savings in the future.