Hello should I invest in a savings account or a cash ISA? thank you

Your interest in saving in a isa is none taxable so your definitely better in isa if you leave it in a year jI76

Hi jl76, and welcome to the forum.

If you're a tax payer, then consider a cash ISA first, as the interest on cash ISAs is tax free. If you're not a tax payer, and not likely to become one in the near future, then go for the best interest rate you can get.