My DH and I have 400k cash in a joint savings account. He is a higher tax payer at 40% and me on 20%. If we make £16,000 interest, for tax purposes is that 16k split 50:50 so we’re both taxed appropriately on 8k each. Him paying £3,200 and me £1,600?
We will be using ISA allowance etc in the future but for other reasons this will be sitting in our joint savings account for a year.