kwok wai hui

Hi ! I came from HK and immigrated to UK on August 30, 2021. - I have employment in HK until August 15, 2021. Do i need to report income get in HK before August 15, 2021, i.e. before my arrival to UK ? This income is already taxed by HK government and I already cleared my HK tax. - do i need to report interest income from my bank accounts before my arrival in UK ? - I also sold my house in HK and have a property gained before arrival in UK. Do I need to report such gain ?