As a non-resident of the US, you will require an ITIN (International Tax Identification Number) to file US Tax Returns. In order to receive this number you will need to fill out form W-7 and attach it with your US Tax Return for the year.
If you own a Canadian corporation that is sending Canadians to work on its behalf in the USA, the USA-Canada tax treaty gives you the option of not withholding social security taxes from your employees’ pay-cheques. To be eligible for this provision, you must apply for a certificate of coverage.
Before we go ahead with the rest of the article, here’s a little introduction. My name in Allan Madan. I’m a chartered accountant and tax expert in the Oakville, Toronto and Mississauga regions of Ontario, Canada. This article is about US Citizens Living in Canada and taxes.