Nurse cross-border tax: TN travel contracts and the residency decision underneath

The US taxes the contract first

A travel contract runs through a US hospital's or agency's payroll, and W-2 wages paid by a US employer are US-taxable from the first shift — the treaty's employment exemptions do not reach them. Expect three withholdings: federal income tax, the work state's income tax, and FICA — US Social Security and Medicare — in place of CPP and EI. A year that touches three taxing states means three state returns, though the Canada-US totalization agreement at least lets those FICA years count toward benefits on either side of the border later.

Two payroll-setup notes worth knowing before orientation day. US payroll applies special W-4 rules to non-resident employees, so the amount withheld rarely matches the final bill — the 1040-NR is where it settles, often with a refund. And filing order matters in spring: the US and state returns are prepared first, because the Canadian foreign tax credit is calculated from what they actually show.

Residency ties are the real decision

Both paths work; drifting between them does not. TN status itself decides nothing here — it is an immigration document, and both tax authorities look past it to facts. Canadian residency is weighed on ties — a home available to you, a spouse or dependants here, provincial health coverage, banking and licences — and it sets your entire Canadian filing picture, as IRS Publication 519 does for the US side.

Nurses doing one or two contracts almost always remain factual residents. Nurses building a multi-year US career usually should leave properly — a dated departure return, not an ambiguous fade that both tax authorities can read against them. The Canadian-side filings on either path run through our nurse tax services practice.

Stipends: after-tax in whose system?

Travel-nurse pay packages lean hard on housing and meal stipends the recruiter calls tax-free. The US exclusion is real but conditional — it requires a maintained tax home whose costs you keep duplicating while on assignment, and a kept Canadian home can serve. The Canadian side is the bigger surprise: for a nurse who remains a factual resident, stipends are generally taxable income on the T1. The Income Tax Act's special-work-site exclusion for board and lodging at temporary sites can sometimes apply, and we test contracts against its conditions rather than assume — but an offer that looks 30 percent richer than a staff job can shrink hard once Canadian tax reaches the whole package. The comparison we actually run: gross up the full package, apply Canadian tax net of the US credits, and set it beside the staff job at home — including the CPP and EI coverage the US contract does not buy.

Licensure, the compact wrinkle, and commuters

State licensure interacts with tax in a way agencies rarely mention. Multistate licences under the Nurse Licensure Compact require declaring a compact state as your primary residence — precisely what a nurse keeping Canadian tax residency does not have. Canadian-resident RNs therefore typically hold single-state licences obtained state by state, which means the tax-smart choice is the licensure-slow one. That is a regulatory point for your board and college, not tax advice, but it belongs in the same planning conversation before you promise an agency multi-state availability.

Border-city nurses are their own pattern. An RN living in Windsor and working a Detroit hospital job stays a Canadian resident, files a 1040-NR and a Michigan return, and recovers the US tax as credits on the T1 — and the treaty lets commuters deduct contributions to a US employer retirement plan in Canada on Form RC268 instead of losing the deduction at the border.

Source: CRA — Leaving Canada (emigrants).