Moving from Calgary to Seattle: Taxes, Energy-to-Tech, and the No-Income-Tax Pull

Calgary sends more engineers into Seattle’s tech sector than the old energy-city stereotype suggests. Oil and gas project managers, reservoir engineers, and the data scientists Calgary’s producers hired over the last decade turn out to have exactly the skill set Amazon, Microsoft, and Boeing want, and Seattle’s growing clean-tech and sustainability sector is pulling directly from Calgary’s own emerging clean-energy scene. This is the city-level companion to the broader Alberta-to-Washington guide, with the numbers and the RSU mechanics specific to this move.

How different are the two tax systems?

The income tax disappearing is the headline, and it’s real, but Washington isn’t a blank tax slate. Between the capital gains excise, a sales tax that goes up instead of down, and a property tax bill that ticks slightly higher, the full comparison needs more than one line.

Tax	Calgary / Alberta	Seattle / Washington
Personal income tax	Combined federal + Alberta top rate ~48%	None
Capital gains	50%/66.67% inclusion rate, taxed as income	7% excise above $270,000/year (2025) on long-term gains
Sales tax	5% GST only	~10.25% combined state and local
Property tax	Roughly 0.6% to 0.8% of assessed value	Roughly 0.9% to 1.1% in the Seattle area
City income tax	None	None
Business tax	Corporate income tax	Washington B&O tax on gross receipts, plus Seattle’s own B&O layer

What happens to my Alberta tax bill on the way out?

Leaving Alberta triggers the standard departure tax: a deemed disposition of your worldwide property at fair market value on your departure date, reported on the final T1. Alberta’s flat 15% top provincial rate is the lowest in the country, which means the provincial share of that deemed-disposition gain is lighter here than from any other province, BC’s 20.5% top rate or Ontario’s surtax-stacked rate included. Combined with the federal bracket, the exit bill runs close to 48% on the gain, real money, but the gentlest departure tax bite of any corridor into Washington.

Is this really an energy corridor wearing a tech disguise?

Mostly tech, with an energy thread still running through it. Calgary’s oil and gas sector spent the last decade hiring reservoir engineers, project managers, and data scientists for exactly the kind of modeling, optimization, and pipeline logistics work that translates directly into software and analytics roles at Amazon, Microsoft, and Boeing. The newer piece is cleaner: Calgary’s clean-tech and carbon-capture startups feed people straight into Seattle’s sustainability-tech firms, a crossover that didn’t exist five years ago and now shows up regularly in the client conversations we have on this route.

How does Washington’s capital gains excise work?

It only applies to long-term capital gains above $270,000 in a single tax year (the 2025 threshold, indexed annually), not to ordinary income, and not to the gain on real estate or retirement accounts, which are both excluded. For someone selling RSU shares, a concentrated stock position, or a business interest, that threshold is easy to cross in a single strong year and easy to stay under if the sale is planned. It’s a state-level tax layered on top of the federal capital gains rate, not a substitute for it.

What happens to RSUs at Amazon and Microsoft?

Both companies pay a meaningful share of comp in RSUs, and the excise tax applies to the gain realized on sale, not to the value that vests. A vest itself is ordinary income, taxed as wages the moment shares hit your account, with no excise exposure at all. The excise only shows up if you hold shares past vesting and they appreciate before you sell, which is common at both companies given multi-year vesting schedules and a habit among Amazon employees especially of holding concentrated positions. Grants awarded before your move date also carry cross-border sourcing rules: the portion of a grant that vests after you become a US resident is allocated between Canadian and US tax based on the days worked in each country during the vesting period, so a grant that straddles the move needs that allocation done deliberately, not guessed at.

Why does sales tax go up instead of down?

This is the one place the numbers move against the mover, and it’s worth flagging because most no-income-tax corridors also bring sales tax down or leave it flat. Alberta has no provincial sales tax, only the 5% federal GST. Seattle’s combined state and local rate runs about 10.25%, more than double. Property tax moves the same direction, if more gently: Calgary’s municipal rate sits around 0.6% to 0.8% of assessed value, while the Seattle area runs closer to 0.9% to 1.1%. Neither offsets the income tax savings, but both are worth building into the household budget rather than discovering at the first big-ticket purchase.

What happens to my RRSP, TFSA, and AHCIP?

Washington has no state income tax return, which means no state-level addback on RRSP growth, unlike California. The federal treaty deferral already keeps that growth out of federal income, and with no state return to file, that’s the entire state-side story. The TFSA is still a foreign trust for US purposes federally, so the standard recommendation to collapse it before departure applies here as it does everywhere. AHCIP coverage runs through the end of the month following your departure month, and that bridge needs a US-side plan lined up before it lapses, which both Amazon and Microsoft offer from the first day of employment.

Where do people actually end up living?

Capitol Hill, Fremont, and Ballard pull the younger, single-to-Amazon-office crowd who want walkability and nightlife over yard space. Bellevue, Kirkland, and Redmond are the default for anyone with a family or a Microsoft or Amazon-East assignment, close to both campuses with strong school districts. West Seattle and Magnolia suit people who want a quieter, more residential feel without leaving the city limits. Mercer Island and Sammamish sit at the higher end, larger lots and higher price points, popular with senior engineers and anyone coming off a strong Calgary home sale with cash to deploy.

What should I do before the move?

Get the Alberta departure return scoped before you leave, so unvested equity and any brokerage gains are handled deliberately instead of discovered at filing time. If a grant straddles your move date, get the cross-border vesting allocation done before the first post-move vest, not after. Line up US health coverage for the AHCIP gap, and if RSUs are likely to produce a large single-year gain in your first couple of years, map the sale timing against the $270,000 excise threshold before the shares are even sitting in your account.

• Alberta to Washington state taxes, the province-level version of this corridor
• Vancouver to Seattle, the same destination from BC
• Canada to Washington, the province-agnostic parent guide
• Calgary to Denver, the flat-tax mountain-city comparison
• Calgary to Austin, the energy-to-tech Texas corridor
• Calgary to Houston, the sibling energy-city corridor
• Canadian departure tax basics, the T1161/T1243 filing mechanics
• Leaving Canada permanently: tax checklist, the full departure sequence
• RRSP and TFSA on a TN move, what to do with Canadian accounts before you go
• The US-Canada tax treaty explained, the framework behind the deferral and sourcing rules above
• Your first US tax return, what filing looks like in year one
• Provincial health insurance timing, the AHCIP coverage tail
• State income tax for cross-border filers, the general state-by-state picture
• Toronto to Seattle, the same destination from Ontario
• Calgary to New York, the energy finance corridor into NYC
• Calgary to San Francisco, the energy-to-tech corridor into California

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