Immigration law | comparison table of different countries' immigration law

Comparison table of different countries' immigration law

Country Requirements and restrictions before settlement Requirements and restrictions after settlement Can a resident visa holder's dependant work? Possibility of one's parents to immigrate following settlement? Is it guaranteed that immigration legislation would not be changed retrospectively and were there retrospective changes of immigration law previously? Access to social benefits before settlement Access to social benefits after settlement Can legitimately naturalised persons be deprived of their nationality? Must an applicant forgo other nationalities in order to naturalise? Are citizens who naturalise in foreign countries deprived of their original nationality?
 US No No No, but foreign earnings are liable to taxation.
 United Kingdom No more than 180 days spent overseas within 5 years, no more than 90 days per trip. Settlement would be cancelled after a certain number of days spent abroad Yes A single parent can immigrate if one is the sole supporter. It has been changed retrospectively in the past and likely to change retrospectively in the future No access to public funds. Yes Dual nationals may be deprived of their nationality for engaging in terrorism. No No
 Canada No
 Australia
 New Zealand
 Israel [33] Yes, unless citizenship obtained by Law of Return
 Germany Yes, unless the prior nationality held was one of the European Union, Norway, or Switzerland; or if the applicant cannot approach the authorities of their previous country for reasons of personal safety. Yes, unless the nationality acquired is one of the European Union, Switzerland, or Norway; or if the applicant obtained permission from the German government prior to submitting an application for naturalisation.
 Ukraine Yes
 Norway Norwegian nationality law Yes Yes, unless the applicant cannot approach the authorities of their previous country for reasons of personal safety, or if the authorities demand a fee considered too high. Yes
 Russia Yes No
 Azerbaijan Yes
 China Yes Yes
 Denmark Yes
 Japan Yes Yes
 India Yes