Yes, you can have as many Fixed Rate ISAs with different providers as you like, as long as you do not deposit more than £20,000 across all your ISA accounts each tax year.
The exception to this is Lifetime ISAs - while you can have more than one open, you can only pay into one Lifetime ISA each tax year, and can only save up to £4,000 each tax year.
Please note, we are not currently accepting Fixed Rate ISA transfers from other providers.
Tax treatment depends on individual circumstances and may be subject to change in the future. Must be 18-39 to open a LISA. Ineligible withdrawals may return less than paid in.