As a Canadian with green card, how should I file my previous tax in US?
I am a Canadian (I do carry a citizenship) and also a US green card holder (since 2005). I am currently living and working in Canada. My green card is going to expire in 2015. I started work in Canada since Dec. 2007, however, I never file any tax in US, but I file tax in Canada since I start working in Canada.
Before 2007, I was studying in Canada, therefore, I had no income before 2007.
I just noticed that all of the green card holder need to be file for oversea income in US no matter where you live.
My questions are:
1) How should I file my previous tax in US?
2) Will I get any penalty for filing previous year's tax in US?
Basically, I would need some suggestions on what action should I take at this point, and how should I approach it.
Thanks anyone for providing me the suggestions!