Physiotherapist cross-border tax: what a US travel-PT contract really pays

TN status opens the door; two tax systems walk through it

Physical therapist sits on the USMCA professional list, so a Canadian physio with an NPTE pass and a state licence can work US contracts on TN status — 13-week placements through staffing agencies are the standard unit. Every placement is W-2 employment, and that word decides the US outcome: wages paid by a US employer are US-taxable from the first shift, because the treaty's employment-income exemptions require a non-US payer or trivial amounts.

Withholding lands accordingly: US federal tax, the work state's income tax, and FICA — US Social Security and Medicare — in place of CPP and EI. Chain contracts across states and each taxing state expects its own return, which is one reason travel PTs gravitate to no-income-tax states like Texas and Florida for more than the weather. One myth to retire early: TN is an immigration label, not a tax status — neither CRA nor the IRS looks at your entry document when weighing where you are resident.

Residency ties decide the Canadian half

Canadian tax residency runs on ties, not on where this quarter's contract is. A physio who keeps an Ontario apartment, a spouse, OHIP coverage, and a bank life here remains a factual resident through one or several contracts: the T1 reports the US wages in Canadian dollars, and foreign tax credits absorb the US federal, state, and FICA tax so the same dollar is not taxed twice. The net cost lands at roughly the higher of the two countries' rates.

The mechanics reward sequencing. The US federal and state returns get prepared first, because the T1's foreign tax credit is computed from what they actually show, and a travel PT on W-2 wages files by April 30 like any other employee — no June extension. Expect a Canadian balance owing in year one, since nothing was withheld here at source, and expect CRA instalment requests to follow once that balance repeats.

Leaving is a different, deliberate act: a departure-date T1, deemed disposition of most investments, and a hard look at the TFSA, which loses its shelter entirely in US hands. We treat departure as a planning project, not a checkbox — the domestic filings on either path run through our physiotherapist tax services practice.

Three patterns, three filing stacks

The middle row is where accidents happen. The substantial presence test counts this year's US days plus a third of last year's and a sixth of the year before, so consecutive travel years can make you a US tax resident without any move at all. Under 183 days in the current year, Form 8840 and a Canadian tax home preserve non-resident status; over it, the treaty tie-breaker still can, but the filings get heavier. We count days before you sign the next contract, not after.

Stipends, CE, and the clinic waiting back home

Recruiters quote packages built on tax-free housing and meal stipends, and the label deserves scrutiny twice. In the US, stipends stay untaxed only while you maintain a tax home whose costs you keep paying — a kept Ontario residence can do that job, while a permanent itinerant fails the test. In Canada, the label does not cross the border: a factual resident's allowances are generally taxable income unless the Income Tax Act's narrow special-work-site conditions are met, which we test against the actual contract rather than assume.

Two smaller items round out the file. US continuing-education courses remain deductible on ordinary principles for self-employed physios, inside the two-convention annual limit. And back home, physiotherapy delivered to individuals is HST-exempt, so a returning clinic caseload creates no GST/HST registration problem — taxable side-lines like corporate ergonomics consulting are what change that answer.

Source: CRA — Individuals: leaving or entering Canada and non-residents.