ISA account

Hi, I have the following questions: 1. In 2023-2024 tax year, I open a fixed rate isa cash account that matures in 2025. Can I set up a new isa account for 2024-2025 while waiting the previous isa account to mature? 2a. If I have an easy access isa account, and I want to create a new isa account in 2024-25. Do I need to transfer the previous ISA account to a new account, or I can keep the old isa account and set up a new isa account? 2b. If I can keep the old isa account and set up a new isa account, I assume I don't need to pay tax for both accounts? 3. If I have an easy access isa account in 2023-24, can I add my 2024-25 isa quota into my last year isa account? Do I need to pay tax if the sum exceeds £20,000?

Hi,

You can see guidance here:

Individual Savings Accounts (ISAs)

Thank you.