Canada vs. US Taxes: How the Two Systems Compare for Expats

Canada vs. US Tax Systems Side by Side

Why Canada and the US Tax Residents Differently

The starting point for any Canada vs. US tax comparison is how each country decides who owes tax in the first place.

Canada uses residency-based taxation. If you’re not a resident, Canada generally doesn’t tax you on your worldwide income. The US is different. It uses citizenship-based taxation, one of the only countries in the world to do so, which means US citizens owe a tax return every year regardless of where they live or how long they’ve been gone. Moving to Canada doesn’t end your US filing obligation. It just adds a second one.

This is the piece that trips up a lot of new movers.

Income Tax Rates: Canada vs. the US

On paper, Canada’s federal tax brackets top out at 33%, lower than the US top rate of 37%. But that comparison is misleading on its own, because Canada’s provincial income taxes stack on top of the federal rate. 

Once you add in provincial tax, combined top marginal rates in provinces like Ontario, Quebec, and British Columbia regularly exceed 50%. In the US, combined federal and state rates typically land between 37% and 50%, depending on where you live, and several states charge no income tax at all.

So while Canada’s bracket structure looks similar to the US on the surface, the real tax burden is heavier once provincial tax is factored in. This is exactly why the Foreign Tax Credit tends to work so well for Americans in Canada, and why the mechanics matter more than which country’s federal rate looks lower.

Take-Home Pay Example: $100,000 Salary

Numbers make the comparison easier to picture. Here’s roughly how a $100,000 salary breaks down in each country.

Ontario, Canada:

• Federal tax: about $16,400
• Provincial tax: about $6,800
• Total tax: about $23,200
• Effective rate: about 23%

United States:

• Federal tax: about $14,300
• State tax: $0 in no-income-tax states like Florida or Texas, or roughly $5,300 in a state like California
• Total tax: $14,300 to $19,600
• Effective rate: roughly 14% to 20%

On paper, the Ontario resident pays a few thousand dollars more. But that gap narrows, and often reverses, once you account for healthcare. 

Canadian taxes fund public healthcare with no premiums. Americans typically pay $5,000 to $15,000 a year in premiums and out-of-pocket costs on top of their tax bill. 

The “higher tax” country isn’t necessarily the more expensive one to live in once healthcare is part of the math.

How the Foreign Tax Credit Prevents Double Taxation

Here’s the part that matters most for your actual US return: because Canadian taxes are generally higher than US taxes, most Americans in Canada can wipe out their entire US tax bill using the Foreign Tax Credit.

The Foreign Tax Credit gives you a dollar-for-dollar credit on your US return for tax you’ve already paid to Canada. 

If your Canadian tax bill is higher than what you’d owe the IRS on the same income, which is usually the case, your US liability drops to zero. You still have to file. The IRS doesn’t know your bill is $0 until you tell them. 

But in most cases, filing correctly means no check written to the IRS.

FEIE vs. FTC: Which Should You Use

Americans in Canada generally choose between two tools to avoid double taxation, and the right one depends on your situation.

Foreign Tax Credit tends to work better if you:

• Live in a high-tax province like Ontario, Quebec, or British Columbia
• Earn above the FEIE limit, since the FTC has no cap
• Have children, since the FTC allows you to claim the Child Tax Credit, which the FEIE can disqualify you from

Foreign Earned Income Exclusion tends to work better if you:

• Earn below the annual FEIE threshold
• Live in a lower-tax province or territory
• Moved partway through the year and want a simpler calculation

Many filers end up using both: FEIE for a portion of earned income and the Foreign Tax Credit for anything above that or for investment income. 

This decision also affects related filings. Dual citizens in particular should weigh it against how their Canadian pensions and accounts are treated on the US side. 

Common Mistakes Americans in Canada Make

• Assuming $0 owed means no filing required. You still have to file a return every year, even if your US tax bill lands at zero.
• Missing the FBAR deadline. If your combined Canadian accounts, including bank accounts, RRSPs, and TFSAs, exceeded $10,000 USD at any point in the year, an FBAR is required.
• Treating a TFSA like it’s actually tax-free. The IRS doesn’t recognize the tax-free status Canada gives TFSAs, and the account can trigger extra US reporting.
• Filing the year-of-move incorrectly. Your first year as a resident of Canada is the most complex to file, and dual-status filing rules apply.
• Overlooking cross-border work income. If you’re a freelancer or contractor earning from both sides of the border, the rules differ from standard employment income.