meseta wrote:What are the tax requirements in my situation? I do not plan to work for a USA company but would enjoy the dual citizenship. I have heard of a Canada / USA Tax Agreement where if you paid tax in Canada you only have to fill out the 1040 forms. Is this true?
As soon as you become an LPR of the US or a US citizen and you have reportable income you have to file a 1040 regardless of where you live. If you don't live in the US then you have to file Form 2555 or 2555-EZ to avoid dual taxation.
It's important to understand where your tax home is in this situation, and it's explained in the instructions for Form 2555.
If you are a US citizen who resides in Canada, then your tax home is Canada, even if you visit the US. The fact you are physically present in the US doesn't mean your tax home moves to the US unless you establish residential ties to the US, so basically you can claim the full foreign exclusion limit for the whole year even if you visit the US.
Bear in mind the foreign exclusion limit is $87,600, so if you add on the various things like your allowed deductions and so on then even if you live in Canada full-time, if you earn around roughly US$100,000 or more you will be paying some US income tax as a US citizen.
Steve.