Calgary to Boston: Energy to Biotech, Massachusetts's Flat 5%, and the Millionaire's Surtax

Calgary's geoscientists, process engineers, and data specialists have skills that transfer to Boston's biotech, robotics, and research sectors, and the move is a moderate tax cut: Alberta's combined top rate of about 48% becomes about 42% in Massachusetts, or 46% above the millionaire's surtax threshold. Massachusetts is not a no-tax state, and it has an estate tax with a low threshold, so the planning is about the RRSP position and the estate rather than the rate.

Key takeaways

• Alberta's roughly 48% top rate sets the departure tax. On a $300,000 unrealized gain, about $72,000.
• Massachusetts taxes most income at a flat 5%, plus a 4% surtax on income above roughly $1.1 million. Short-term capital gains are taxed at 8.5%.
• Massachusetts's conformity to the treaty's RRSP deferral should be confirmed; the state applies its own rules to treaty-exempt income.
• Alberta's 5% GST becomes 6.25% sales tax with no local additions.
• Massachusetts's estate tax applies above $2 million with rates to 16%. AHCIP ends on permanent departure.

The Alberta departure

Departure tax applies to non-registered investments, private company shares, crypto, and foreign property at fair market value on the departure date. Alberta real estate, RRSPs, TFSAs, and pensions are excluded. Report on Form T1243, list holdings on Form T1161 if the total exceeds $25,000, and post security under Form T1244 for illiquid assets. A Calgary corporation is deemed sold and becomes a US controlled foreign corporation after the move; wind it up before you go.

Boston's side

• State income tax. Flat 5% on most income; 4% surtax above the indexed threshold near $1.1 million; short-term gains at 8.5%; long-term gains at 5%.
• City income tax. None in Massachusetts.
• Sales tax. 6.25% statewide, no local additions; clothing under $175 and most groceries exempt.
• Property tax. Effective rates near 1% to 1.2% in Boston and Cambridge; Boston offers a residential exemption to owner-occupants.
• Estate tax. Applies to estates above $2 million, with a credit that removes the former cliff; rates to 16%.

The RRSP in Massachusetts

Federally deferred under Article XVIII of the treaty. Massachusetts starts from federal gross income but has its own rules on income excluded by treaty; confirm the RRSP position with the guidance in hand before assuming state deferral. If the state does not defer, restructure the account toward low-yield holdings or draw it down before departure.

Who makes this move

Calgary geoscientists and engineers to Kendall Square biotech and Boston's research institutions, Alberta data scientists to Boston's AI and robotics firms, and Calgary energy analysts to Boston's asset managers and clean-energy investors.

Worked example

A Calgary process engineer moves to Cambridge on July 31 with $200,000 of unrealized gain in a non-registered account, $450,000 in an RRSP, and a Calgary home sold in the departure year.

• Departure tax. $200,000 gain, $100,000 taxable, at about 48%: roughly $48,000.
• Home. Sold as a resident under the principal residence exemption.
• RRSP. Federally deferred; Massachusetts position documented.
• Boston. Combined top rate about 42%. GST 5% becomes sales tax 6.25%.

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

Only the portion of a taxpayer's taxable income that exceeds the surtax threshold for a tax year will be subject to the 4% surtax; the threshold for Tax year 2026 is $1,107,750. — Massachusetts Department of Revenue, 4% Surtax on Taxable Income, https://www.mass.gov/info-details/massachusetts-4-surtax-on-taxable-income

Alberta's top personal income tax bracket: "15%" on "$362,961.01 and up" (2025). — Government of Alberta, Personal income tax, https://www.alberta.ca/personal-income-tax

Practitioner note

Massachusetts's estate tax threshold is $2 million, and a Calgary couple arriving with a home, an RRSP, and a portfolio is often above it on day one. Alberta has no estate tax; Massachusetts does. We put the estate analysis in the first meeting, not the last.

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

Next step

Fairlight prepares the Alberta departure return, the RRSP position, and the first-year federal and Massachusetts returns. See cross-border pricing or book a call.