I want to purchase a new Mac in Hong Kong, which is above the threshold of filing for customs in Japan.
However, how about the case of buying it in Hong Kong, and then moving to another country? In this case, do I have to file at the next country, or file when I finally return back to Tokyo, or does the tax become completely exempt?
Also, is there any chance to be taxed multiple times on different airports/customs?
And finally, if one amount of items is not subject to customs in one country but is in another country, can you possibly avoid the taxation by way of the tax-friendly country?