How much money does a sponsor need to sponsor a spouse?
In the US, you have to be 125% above the current poverty line.
Look at uscis.govhomepage and you will find all the answers to all
your immigration questions. In Canada, there is no income
requirement. Even if there is no income requirement for you to
sponsor your partner/spouse, your application may be refused in
case you are on public assistance, or welfare, for other reasons
than a disability.