Do brokers like IB report interest gains to HMRC? How do I need to report if not?

Hi, I know the banks and institucions usually report the saving interest we earn to HMRC, and then you calculate if some tax need to be paid. But, what happens with brokers like Interactive brokers? Do they report to HMRC that thing as well for non ISA accounts? If not, how can I report to HMRC the interest for my broker account? Thanks very much.

Hi,

You can report the income and capital gains in a Self Assessment Tax Return or in writing. Have a look at this tool, to determine whether you need to daclare the income on a tax return.  

Check if you need to send a Self Assessment tax return

To write to HMRC, please send your letter to:

H.M. Revenue and Customs Pay As You Earn
BX9 1AS

Thank you.