Moving from Montreal to Pittsburgh: Taxes, AI Jobs, and Local Wage Tax

Pittsburgh sells itself on Pennsylvania’s flat 3.07% state income tax, and a Montreal researcher coming off Quebec’s 53.31% top rate hears that number and assumes the move is close to a tax-free upgrade. It isn’t quite that simple. Pittsburgh layers its own local earned income tax on top of the state rate, close to 3% between the city and school district, and the departure side of the move runs through three separate Canadian authorities before that first Pennsylvania return is even relevant.

Why does this specific corridor exist?

Six pipelines feed it, and most trace straight back to a research lab rather than a generic relocation. Mila and Element AI alumni move into Carnegie Mellon’s AI labs, Google’s Pittsburgh office, and Duolingo’s headquarters. Bombardier, CAE, and Pratt & Whitney aerospace engineers land at Collins Aerospace and the defense-adjacent manufacturing base built around it.

• Ubisoft Montreal staff move into game development and simulation studios tied to CMU spinoffs. Pharma and biotech researchers land inside UPMC’s health system or university biotech programs. National Bank, Desjardins, and PSP finance staff land at PNC Financial’s Pittsburgh headquarters or BNY Mellon’s local presence, and CMU’s Robotics Institute pulls in robotics talent that overlaps with Aurora Innovation and the legacy Argo AI research base.

How much does the tax rate actually drop?

A lot, even with the local add-ons stacked on top. Quebec’s combined top rate lands around 53.31%. Pennsylvania’s flat state rate is 3.07%, and Pittsburgh’s local earned income tax, roughly 3% combining the city and school district shares, brings the combined state-and-local bill to near 6%, before the federal rate is applied at all.

	Montreal / Quebec	Pittsburgh / Pennsylvania
Income tax	Combined top rate ~53.31%	Flat 3.07% state, plus local earned income tax ~3% (city + school district)
City/local income tax	None (provincial only)	Local earned income tax applies by municipality under Act 32
Sales tax	QST 9.975% + GST 5%, ~14.975% combined	7% (6% state + 1% Allegheny County)
Property tax	Roughly 0.7% to 1.0% in most municipalities	Roughly 2.0% to 2.5% in Allegheny County
Estate/inheritance tax	None (deemed disposition at death instead)	No estate tax; inheritance tax 4.5% to 15% depending on heir

• Property tax runs the opposite direction from every other row here. Allegheny County’s effective rate sits two to three times Montreal’s, which matters most once the move goes from renting to buying in one of Pittsburgh’s established neighborhoods.

Does Pittsburgh charge its own local income tax?

Yes. Pittsburgh residents owe a local earned income tax of roughly 3%, split between the city and the local school district, layered on top of Pennsylvania’s flat state rate.

• Most Pennsylvania municipalities outside Philadelphia collect this local tax under Act 32 based on where you live rather than where you work, and employers generally withhold at the higher of the resident or work-location rate. Confirm the current combined rate for the specific municipality before assuming one Pittsburgh-wide figure. Downtown, Squirrel Hill, and Mount Lebanon don’t all land on the same number.

Which Canadian authorities handle the departure?

Three, and Pennsylvania isn’t one of them. The final TP-1 goes to Revenu Québec, covering worldwide income to the departure date. The final T1 goes to the CRA, covering the same period federally. Anyone billing an employer or client through a Quebec corporation, common among aerospace contractors and AI researchers on consulting arrangements, also has a QHSF (Quebec Health Services Fund) filing to close out separately.

• Skipping the QHSF close-out is the mistake that resurfaces a year later as an unexpected Revenu Québec notice, well after the mover has stopped thinking about Quebec compliance.

What replaces my T4 and T5 on the way out?

Relevé slips. Quebec issues its own slips alongside the federal ones, the Relevé 1 next to the T4 for employment income and the Relevé 3 next to the T5 for investment income. A partial-year Montreal employer, common for anyone leaving mid-project at a lab or aerospace firm, often issues the Relevé 1 weeks behind the T4, and the TP-1 can’t be finished from the federal slip total alone.

• The Quebec abatement, a 16.5% reduction of basic federal tax, also has to be prorated to the actual months of Quebec residency in a departure year rather than applied at the full-year rate.

What happens to RAMQ and my RRSP?

RAMQ doesn’t end the day you leave. Notify the Régie de l’assurance maladie du Québec directly once the departure date is fixed, and expect coverage to run roughly three months past that notification, a gap that needs bridge coverage or a confirmed US insurance start date sitting against it.

• The RRSP is where the answer gets less certain than in most states. Pennsylvania doesn’t build its return from federal adjusted gross income; it computes tax from its own eight classes of income, independent of the federal number. That independence cuts against the RRSP specifically: the treaty election that defers RRSP growth federally under Article XVIII doesn’t automatically carry through to a state return that never adopted the federal AGI in the first place. Whether Pennsylvania reaches unrealized RRSP growth as it accrues is worth a direct check against current Pennsylvania Department of Revenue guidance rather than an assumption. The RRSP and TFSA guide covers the election mechanics; the TFSA gets no comparable shelter either way, with its investment income landing in Pennsylvania’s ordinary classes from year one.

Does Pennsylvania tax retirement income?

Almost none of it. Distributions from a 401(k), an IRA, an employer pension, and Social Security fall outside Pennsylvania’s tax base once the plan and the recipient meet the state’s own eligibility rules, a structural exclusion built into the state’s income classes rather than a credit applied after the federal figure comes in.

• That exclusion is written around US-qualified plans by name, which is exactly why the RRSP question above needs its own answer rather than one borrowed from the 401(k) rule.

Does Pennsylvania have an estate tax?

No, but it has an inheritance tax, and the rate depends on who receives the property rather than how large the estate is. Transfers to a spouse are taxed at 0%. Transfers to children and grandchildren are taxed at 4.5%.

• Transfers to siblings are taxed at 12%, and transfers to everyone else, unrelated beneficiaries included, are taxed at 15%. It reaches Pennsylvania real estate and tangible property regardless of where the decedent lived, and a Pennsylvania resident’s intangible property regardless of where it sits. Quebec has no separate estate or inheritance tax, using deemed disposition at death instead, so this is a genuinely new concept for a Quebec family settling in Pennsylvania permanently.

What should I do before the move?

Fix the departure date first, since it sets the deemed disposition figure on both the T1 and TP-1 and starts the RAMQ clock. Then gather both slip sets, T4/T1 and Relevé/TP-1, close out any QHSF filing tied to a Quebec corporation, and get the RRSP’s Pennsylvania treatment checked directly rather than assumed.

• Moving from Canada to Pennsylvania
• Toronto to Pittsburgh
• Montreal to Philadelphia
• Montreal to Charlotte
• Montreal to Detroit
• Montreal to New York
• Montreal to Chicago
• Montreal to Boston
• Montreal to Raleigh
• Calgary to Pittsburgh, the energy-to-steel corridor from Alberta
• Montreal to Columbus, the fintech and insurance corridor into Ohio
• Canada’s departure tax, T1161 and T1243
• Leaving Canada permanently: tax checklist
• RRSP and TFSA after moving to the US
• The US-Canada tax treaty explained
• Your first US tax return as a new Canadian immigrant
• Provincial health insurance when leaving Canada

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