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Cross-Border Tax (U.S.–Canada)

Montreal to Raleigh: Pharma, the Research Triangle, and Three Authorities on the Way Out

Reviewed by the Fairlight Accounting cross-border tax team — U.S. & Canadian Tax Desks

On this page

Research Triangle Park's pharma and biotech cluster recruits Montreal's life sciences researchers directly, and its software employers recruit Montreal's AI and engineering talent. The move is a large tax cut: Quebec's combined top rate of about 53.3% becomes about 41% in North Carolina. The departure year runs through Revenu Québec, the CRA, and the IRS.

Key takeaways

  • Two Canadian departure returns: the federal T1 and Revenu Québec's TP-1, with matching departure dates.
  • Quebec's roughly 53.3% top rate sets the departure tax. On a $300,000 unrealized gain, about $80,000.
  • North Carolina's flat income tax is 3.99% for 2026 and still stepping down. No city income tax.
  • North Carolina follows the treaty's RRSP deferral.
  • Quebec's 14.975% combined GST and QST becomes 7.25% sales tax. RAMQ ends on departure.

The three-authority departure

The federal deemed disposition applies to non-registered investments, private company shares, crypto, and property outside Canada; Quebec mirrors it. Report on federal Form T1243 (with T1161 if the property list exceeds $25,000) and on the Quebec equivalents. RAMQ ends when you leave Quebec to settle outside Canada. A Montreal condo kept and rented brings NR6 and Section 216 federally plus Quebec equivalents.

Raleigh's side

North Carolina's flat income tax is 3.99% for 2026 under the state's step-down schedule; no city income tax; 7.25% sales tax in Wake County; property tax near 0.8% effective; no estate tax.

The RRSP in North Carolina

Federally deferred under Article XVIII of the treaty and deferred for North Carolina because the state starts from federal AGI. Withdrawals face 25% Canadian withholding on lump sums, 15% on periodic RRIF payments within the treaty limit, a US foreign tax credit federally, and North Carolina's flat rate.

Who makes this move

Montreal pharma and biotech researchers to Research Triangle Park's life sciences employers, Quebec AI and software engineers to the Triangle's tech companies, Montreal clinicians to Duke and UNC, and Quebec academics to the Triangle's three universities.

Worked example

A Montreal pharma researcher moves to Durham on July 31 with $180,000 of unrealized gain in a non-registered account, $350,000 in an RRSP, and a Plateau condo sold in the departure year.

  • Departure tax. $180,000 gain, $90,000 taxable, at about 53.3%: roughly $48,000 across the T1 and TP-1.
  • Condo. Sold as a resident under the principal residence exemption on both returns.
  • RRSP. No tax on departure; federal and North Carolina deferral.
  • Durham. Combined top rate about 41%. Sales tax 14.975% becomes 7.5%.

Official sources

"When you leave Canada, you are considered to have sold certain types of property (even if you have not sold them) at their fair market value (FMV) and to have immediately reacquired them for the same amount. This is called a deemed disposition and you may have to report a capital gain (also known as departure tax)." — Canada Revenue Agency, Leaving Canada (emigrants), https://www.canada.ca/en/revenue-agency/services/tax/international-non-residents/individuals-leaving-entering-canada-non-residents/leaving-canada-emigrants.html

Revenu Québec sets out the income tax obligations of individuals who cease to be resident in Québec, including the deemed disposition of property on departure. — Revenu Québec, Leaving Québec, https://www.revenuquebec.ca/en/citizens/your-situation/residence-status-and-tax-obligations/leaving-quebec/

For Taxable Years after 2025, the North Carolina individual income tax rate is 3.99% (0.0399). — North Carolina Department of Revenue, Tax Rate Schedules, https://www.ncdor.gov/taxes-forms/individual-income-tax/tax-rate-schedules

Practitioner note

Montreal-to-Raleigh is a three-authority departure into one of the simplest state systems in the US. The US side takes an afternoon; the TP-1 departure date and any Quebec rental filings are the items that get missed.

See also: Weighing Florida instead? See the Canada-to-Florida guide, or the same city's Montreal to Miami guide. Comparing the Carolinas? See Montreal to Charlotte.

Next step

Fairlight prepares the T1, the TP-1, and the first-year federal and North Carolina returns for Raleigh clients. See cross-border pricing or book a call.

Cross-border taxes, handled in one place

U.S. and Canadian filings prepared together by our U.S. and Canadian Tax Desks.

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