Maximum tax free savings interest

My wife does not have any income only interest from savings, what is the maximum amount of interest she can earn before paying tax on the interest received? She does have an ISA.

Hi Paul A,
Please refer to Tax on savings interest
Thank you.

Not very helpful, the link doesn’t work plus the information I’ve read is confusing so just needed a rough figure e.g. £1000, £17,000

Hi Paul,
I have updated the link and it should be working now.
I have referred your post back to the subject matter expert for a response to this.
Thank you.

Hi Paul,
Please refer to:
Tax on savings interest
Thank you.