Is isa limit £85k or can I add more and still get interest?

Gobigorgohome

I’ve got one isa at the moment at £69k and planning on adding £20k to that with shawbrook. As it is going to be nearly £90k will I still get the interest or is there a limit?
am I better to open another one and add £20k there?

refluxer

£85k is the maximum amount you'll be entitled to under the FSCS if Shawbrook was to fail - that figure applies to the total amount you have saved across all the accounts you hold with Shawbrook plus any interest due (but not yet credited) on those accounts so you need to leave headroom for that, also.

The maximum amount you can hold in a Shawbrook fixed rate cash ISA is £250k, according to the current T&Cs so yes - you'll still continue to get interest if you increase the balance to £89k but, personally, I wouldn't go over the FSCS limit for any bank (other than NS&I).

refluxer

It's worth noting that there has been a proposal to increase the FSCS limit to £110k, but the decision won't be confirmed until November so any actions you took now based on the likelihood of that happening would be a gamble.

https://www.bankofengland.co.uk/news/2025/march/the-pra-proposes-raising-fscs-deposit-protection-limit

jimjames

Gobigorgohome said:

I’ve got one isa at the moment at £69k and planning on adding £20k to that with shawbrook. As it is going to be nearly £90k will I still get the interest or is there a limit?

There is no upper ISA limit other than the £20k maximum that you can pay in each year. Some people have ISAs with over £1 million in them

Ch1ll1Phlakes

Gobigorgohome said:

I’ve got one isa at the moment at £69k and planning on adding £20k to that with shawbrook. As it is going to be nearly £90k will I still get the interest or is there a limit?
am I better to open another one and add £20k there?

You'll still earn interest if your ISA with Shawbrook holds more than £85k, though anything over this value will not have the FSCS protection.

Note, as you mention if this protection is something you want, opening ISAs with more than one provider (which is allowed) would allow all your funds to be protected (as long as each provider holds less than £85k across accounts held with them).