interest tax

If my mum have a bank account in Hong Kong. She is above 60 years old. She doesn't have the online banking. She only remember there is about 5000HKD, around 500 pound in there. She don't know how much interest or even maybe no interest are there, because she forget that is saving or current account. And she already have no contact with that bank. Then does she need to do the self assessment for that interest? If yes, then what amount she should put into? Thanks.

Hi,
This forum is for general queries only and is intended to help you self-serve.
We are unable to provide specific advice tailored to individual circumstances.
Thank you