If I get my green card?

[maple leaf lawyer]

What is the name of your state? Canada.

I'm thinking of getting my green card and immigrating to the US, but I'm concerned about my tax issues. I understand that, as a Canadian, I'll be taxed in Canada only if I'm resident there. So, if I reside in the US, I won't be taxed under Canadian law - that's the general principle as I understand it.

If I get my green card, but I still reside in Canada for the time being, will I be taxed under US law? I understand American citizens are taxed even if they don't reside in the US. My plan is to get my green card, then, after I stabilize my firm here, expand by opening another office in the US. So I will be resident for about a year in Canada if and when I get in.

[FlyingRon]

Can't vouch for Canadian taxes, US LAW ONLY !

You don't start with a green card. You start with the appropriate VISA. Further you can't get or maintain a green card if you are not residing here.

As for your US TAX issues, start here:

http://www.irs.gov/publications/p519/index.html