Taxes
A tax (also known as a "duty") is a financial charge or other levy imposed on an individual or a legal entity by a state or a functional equivalent of a state. Sums imposed by a government authority upon persons or property to pay for government services.

What are the Canadian Federal and Provincial tax rates for 2006?

http://www.cra-arc.gc.ca/tax/individuals/faq/taxrates-e.html#federal

What are the U.S. Federal tax rates for 2006?

http://www.irs.gov/formspubs/article/0,,id=150856,00.html