HK Tax stuff
I got the following info from a mate who previously worked at Immigration (poor ******)...it contradicts 'gofers' post so you'd do well to check:-
'Hong Kong Immigration Department and Hong Kong Inland Revenue Department are separated department in Hong Kong. According to Privacy Ordinance (Cap.486) in Hong Kong, No one can get your personal information from Immigration Department except for court order or approval by Director of Immigration. In the IRD Ordinance, you are entitled for time apportionment for your salaries tax because your employment contract is enforceable outside Hong Kong. It mean that if you are not in Hong Kong, your salary is not subject to Hong Kong Salaries Tax. The only way for IRD to identity the period you are not in Hong Kong is based on your passport; therefore, they need you to work out manually'.
Cheers.