A US citizen can work as either an employee or contractor for a Canadian company. This will depend on the preferences of the company, and ease of hiring. As an employee they would sponsor your work permit, but as a contractor you would have to do this on your own.
Canadian contractors are not subject to US tax reporting requirements like Form 1099 because they are not US residents or citizens. Instead, Canadian contractors may receive their own country's equivalent tax forms or documentation from their clients or employers in Canada, depending on local tax regulations.
The T2125 form is used to report your business or professional income. It includes details of your business activities, income, expenses, and net income. You should complete a separate T2125 form for each self-employed business or profession you have.
15% on the first $55,867 of taxable income. 20.5% on taxable income over $55,867 up to $111,733. 26% on taxable income over $111,733 up to $173,205. 29% on taxable income over $173,205 up to $246,752.
The IRS requires a flat 30% withholding on ALL types of payments to foreign national individuals UNLESS: The individual has a U.S. tax identification number (SSN or ITIN) and qualifies for a tax reduction under the tax treaty between the U.S. and their country of tax residency.
Remember, filing your taxes is also the only way to be considered for government benefits such as provincial or territorial tax credits, the GST/HST tax credit, and the Canada Child Benefit. Nerd tip: It's recommended that, as a self-employed individual, you save 25%-30% of your annual income for tax purposes.
Instead of filling out a 1099, when you hire Canadian contractors, you should request a completed W-8BEN from them. This form ensures compliance with the IRS and the Canada-US tax treaty; without it, you are required to withhold and remit 30% tax on all contractor earnings.
Completing your tax return Enter on line 10400 of your return the amount of your foreign employment income (in Canadian dollars) that is not included on a T4 slip. (If your foreign income is included on a T4 slip, see line 10100.)