got offer from IBM NY,confuse

Hi, Everyone,

I am a Canadian. I just got a contract offer from IBM NY. Since this is a contract, high pay, if I pay tax in Canada, need to pay lots money. But if I close everthing in Canada and don't pay tax in Canada. If I want to come back later, someone told me there will be some trouble.

How could I do? Really appreciate your advise.



Angela