What are the best current FLEXIBLE Cash ISA's

schiff

Emphasis on flexible

masonic

https://moneyfactscompare.co.uk/isa/easy-access-cash-isas/?quick-links-first=false
See the View Further Details section for confirmation of whether "Flexible Rules Apply".

eskbanker

https://www.moneysavingexpert.com/savings/best-cash-isa/#topeasy includes a column indicating flexibility.

surreysaver

https://www.principality.co.uk/en/savings-accounts/isas/Online-ISA

Pays 5%

Qyburn

Zopa is 5.08%

Zaul22

Chip is flexible but no transfers. 

where_are_we

ZOPA Smart ISA 5.08% - part of interest is a bonus - Open a Smart ISA before 6th April 2024 to earn an extra 0.5% AER*/gross** fixed on top of the underlying 4.58% AER (4.48% gross) variable Access ISA pot rate.

This means you'll earn a total of 5.08% AER (4.96% gross) variable on Access ISA pots!

The bonus rate will run until 6th April 2025. You must already have a Smart Saver account and it allows transfers in.

Trev_666

Don't open a Virgin Cash ISA - See previous posts on here about trying to access your account/money once you open one. They are dreadful.

pecunianonolet

Coventry BS usually has flexible ISAs on offer, although most with limited number of withdrawals. They had a 5.05% account but that is now NLA. They might relaunch again so would keep an eye out on it.