Digital Nomad Tax: Canada-US Cross-Border Rules

The “digital nomad” label does not create a tax category. Tax law does not care whether you call yourself a nomad, a remote worker, or a freelancer. It cares where you are physically sitting when you perform the work, where your residential ties are, and whether you meet the residency tests in each country. A Canadian who works from coffee shops in Austin for three months, then Lisbon for two, then back to Vancouver for the rest of the year is a Canadian tax resident who may have created US and Portuguese tax obligations during those stays. The laptop did not change the rules. The location did.

Am I still a Canadian tax resident if I travel constantly?

Almost certainly, unless you deliberately severed your Canadian residential ties. The CRA determines residency based on residential ties, not on how many days you spend in Canada. If you keep a home in Canada (even rented out short-term), have a spouse or dependants in Canada, hold a Canadian driver’s license, maintain bank accounts, and have provincial health coverage, the CRA treats you as a factual resident. Being “on the road” for months at a time does not change that assessment if the ties remain.

The 183-day deemed-resident rule under ITA 250(1)(a) is a separate backstop: if you sojourn in Canada for 183 or more days in a year, you are deemed resident for the entire year even without residential ties. But most digital nomads who maintain a Canadian base are already factual residents based on their ties, so the 183-day rule is irrelevant for them.

To actually stop being a Canadian tax resident, you would need to sever residential ties: sell or long-term lease your home, move your family out of Canada, cancel health coverage, and establish residency elsewhere. The leaving Canada tax checklist covers that process. Simply traveling does not accomplish it.

What happens when I work from the US?

Working from the US while being a Canadian tax resident creates two potential issues:

1. US tax residency. If you spend enough days in the US, you may meet the substantial presence test (31 days in the current year, plus 183 weighted days over three years). Meeting the test makes you a US tax resident for the year, subject to US tax on worldwide income. The closer connection exception (Form 8840) or the treaty tiebreaker can override this, but you must file the appropriate forms.

2. US-source income. Even if you do not become a US tax resident, income earned from services performed while physically in the US is US-source income. Under Article VII of the treaty (business profits), a self-employed Canadian working from the US can avoid US tax only if they do not have a permanent establishment (PE) in the US. Working from a friend’s couch in Austin for three months is unlikely to create a PE. Renting a co-working desk in New York for six months might.

For employees, the treaty analysis is different. Article XV (employment income) allows the source country to tax income from work performed there, with a limited exception requiring all three conditions: presence under 183 days in a 12-month period, remuneration paid by a non-resident employer, and the cost not borne by a PE in the source country.

What if I am a US citizen working from Canada?

The US taxes its citizens on worldwide income regardless of where they live or work. If you are a US citizen working from a Vancouver co-working space, the US taxes that income. Canada also taxes it because you are performing services in Canada (and likely a Canadian tax resident if you have ties there).

The foreign tax credit prevents double taxation. Because Canadian tax rates on employment and self-employment income are generally higher than US rates, the FTC usually eliminates the US income tax. But you still file both returns, and you still owe CPP contributions on self-employment income earned in Canada. The totalization agreement prevents double social-insurance contributions.

The FEIE (Foreign Earned Income Exclusion, IRC 911) is available if you meet the bona fide residence or physical presence test, but for a US citizen in Canada, the FTC is almost always more beneficial because Canadian tax rates exceed US rates. The FEIE reduces the income subject to US tax but also reduces the FTC capacity, which can leave you worse off.

Do I need to file in both countries every year?

If you are a Canadian tax resident with US-source income (from days worked in the US), you may need to file a US nonresident return (Form 1040-NR) to report that income and pay US tax on it, then claim the FTC on your Canadian return to avoid double taxation. If your US presence triggers the substantial presence test, you may need to file a full US resident return and claim the treaty tiebreaker on Form 8833.

If you are a US citizen living in Canada, you file both returns every year: a Canadian T1 (worldwide income as a Canadian resident) and a US 1040 (worldwide income as a US citizen). The FTC coordinates the two. You also file FBAR (FinCEN 114) if your Canadian accounts exceed $10,000 in aggregate at any point during the year, and Form 8938 if your foreign financial assets exceed the reporting thresholds.

What about state and provincial taxes?

State taxes add a layer. Some US states (California, New York, Massachusetts) have aggressive nexus rules for nonresidents. If you perform work from a state, the state may tax the income earned there, even if you are not a US tax resident federally. California, for example, taxes all income derived from California sources, and a few weeks of work from a San Francisco co-working space can create a California filing obligation.

On the Canadian side, provincial tax follows residence: if you are a Canadian resident on December 31, you pay provincial tax in the province where you reside on that date. Working from other provinces during the year does not create provincial filing obligations in those provinces (unlike the US state system).

What are the common myths?

“I can work from anywhere without tax consequences.” False. Working from a country creates a taxing nexus in that country. The question is whether a treaty or domestic exception prevents the tax, not whether the nexus exists.

“If I stay under 183 days, I’m safe.” Misleading. In Canada, 183 days is only the deemed-resident backstop; residential ties can make you resident with zero days in Canada. In the US, the substantial presence test uses a weighted three-year formula, so fewer than 183 current-year days can still trigger residency. And sourcing of income (where the work is performed) is a separate question from residency.

“My income is from the internet, so it’s not sourced anywhere.” False. The sourcing of service income follows the physical location of the person performing the service. Where the client is, where the server is, and where the payment comes from are irrelevant. A Canadian coding from a laptop in Portland is earning Portland-source income.

“I’m a contractor, not an employee, so payroll rules don’t apply.” Partially true. Independent contractors are not subject to payroll withholding, but they are subject to income tax on source-country income and social insurance contributions in the country where they work (coordinated by the totalization agreement).

What should I do next?

If you work from multiple locations across the Canada-US border, start with the residency question (where are your ties?), then the day count (are you triggering the substantial presence test?), then the sourcing question (where did you physically perform the work?). The answers determine which returns you file and where the FTC applies.

• Remote work across the Canada-US border, the employment-specific analysis including PE risk and payroll
• How does the CRA determine tax residency?, the residential ties test
• Substantial presence test formula, the US weighted day count
• Closer connection exception and Form 8840, the carve-out for Canadians who spend time in the US
• Self-employed and cross-border, the freelancer-specific treaty and withholding rules
• FEIE vs FTC, why the exclusion is usually worse than the credit for Canada
• Home office deduction cross-border, the deduction rules when your office is in one country and your clients are in the other

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.