If you feel your financial goals would benefit from splitting your money across a cash ISA and a stocks and shares ISA, there’s absolutely no reason why you can’t do both.
You can pay into both types of ISA in the same tax year, as long as your total combined contributions don’t exceed your yearly allowance. You don’t get a separate allowance for each type of account.
If you’re still unsure which type of ISA is right for you, it’s always best to seek professional advice from a Specialist Financial Adviser who can provide expert guidance tailored to you.