I'm HK PR without job in HK. I also I never registered any business here.
Recently I do freelance project for a friend abroad, and I'll invoice them with address in HK and recieve payment with my bank account in HK.
Does this cause any trouble?
It's temporary project, and probably the only income I recieve in HK this tax year. However I want to file it on incoming tax filing to avoid any issue that bank or IRD might ask (if that happens).
Could I just go on and fill the number or it's unnecessary? As the fee I will recieve will be less than minimun amount that require to pay tax