Montreal to Salt Lake City: Three Authorities, Silicon Slopes, and Utah's Flat Tax

Silicon Slopes' software companies recruit Montreal's AI and engineering talent, and Utah's outdoor culture recruits everyone else. The move is a large tax cut: Quebec's combined top rate of about 53.3% becomes about 41.5% in Utah. 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.
• Utah's flat income tax, 4.5% after the 2025 cut. No city income tax.
• Utah follows the treaty's RRSP deferral.
• Quebec's 14.975% combined GST and QST becomes about 7.75% 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.

Salt Lake City's side

Utah's flat income tax, 4.5% after the 2025 cut; no city income tax; sales tax about 7.75% in Salt Lake City; property tax among the lowest in the US, near 0.6% effective, with a 45% residential exemption on primary residences; no estate tax.

The RRSP in Utah

Federally deferred under Article XVIII of the treaty and deferred for Utah 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 Utah's flat rate.

Who makes this move

Montreal AI and software engineers to Silicon Slopes' tech companies, Quebec aerospace engineers to Utah's defence and aerospace employers near Hill Air Force Base, Montreal finance staff to Salt Lake City's financial services sector, and Quebec outdoor-industry professionals to Utah's recreation brands.

Worked example

A Montreal software engineer moves to Salt Lake City on July 31 with $180,000 of unrealized gain in a non-registered account, $350,000 in an RRSP, and a Rosemont 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 Utah deferral.
• Salt Lake City. Combined top rate about 41.5%. Sales tax 14.975% becomes 7.75%.

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/

Multiply line 9 by 4.5 percent (.045). — Utah State Tax Commission, Income Tax Rates, https://incometax.utah.gov/paying/tax-rates

Practitioner note

Montreal-to-Utah is a three-authority departure into one of the simplest state systems in the US. The TP-1 departure date is the item that gets missed.

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

Next step

Fairlight prepares the T1, the TP-1, and the first-year federal and Utah returns for Salt Lake City clients. See cross-border pricing or book a call.