Moving from Ottawa to Washington DC: Government, Defence, and Tech Taxes

Ottawa is a company town, and the company is the federal government. When someone from that world moves to Washington DC, into a Hill office, a multilateral lender, a defence contractor in Arlington, or a policy shop on Massachusetts Avenue, they’re usually walking out of one government-adjacent career and straight into another one. That makes this a genuinely different corridor from Toronto-to-New York or Calgary-to-Houston: what’s moving is often a federal pension, a security clearance, and a professional network built around Parliament Hill and DND rather than a straightforward private-sector transfer. The tax mechanics still run on the same two tracks, the Canadian exit and the US arrival, with DC’s own quirks sitting in between.

How much of Ottawa’s tax bill disappears?

Most of it, but not all of it, and the comparison is closer than a Florida or Texas move. Ontario’s combined federal and provincial top rate, with the surtax layered in, runs close to 53.53% on income above the top threshold. DC’s own graduated brackets top out at 10.75%, on income above $1,000,000, so the provincial and Ontario-specific layers, the surtax and the Ontario Health Premium, are gone entirely. What stays is US federal tax on worldwide income, so the honest comparison is Ontario-plus-federal-Canadian against US-federal-plus-DC, not 53.53% against zero.

Why isn’t DC a state, and does that matter?

It matters for structure, not for the size of the bill. Washington DC is a federal district rather than a state, but it levies its own income tax and residents file a DC return the same way a New Yorker files a state return. There’s no county or city layer sitting inside DC the way there is in Ontario’s municipal system or in Maryland’s counties, since DC has no subdivisions of its own. So a DC resident’s total local-tax picture is a single number off a single bracket table, which is simpler in structure than most US metro corridors even though the top rate itself isn’t especially low.

	Ottawa / Ontario	Washington DC
Provincial or district income tax	Yes, combined with federal to roughly 53.53% at the top	4% to 10.75%, graduated
County or city income tax	None (Ontario has no municipal income tax)	None (DC has no subdivisions to tax)
Sales tax	HST 13%	6% general, 10% restaurants, 10.25% hotels
Property tax	Roughly 1.1% to 1.2% of assessed value	Roughly 0.85% on the first tier of assessed value
Estate tax on death	Ontario Estate Administration Tax, roughly 1.5% above the first tier	DC estate tax, $4,528,800 exemption, well below the federal exemption

What makes this corridor different from others?

The sheer overlap between the two capitals’ industries. Ottawa’s federal, defence, and tech sectors each have a near-exact DC-area counterpart, which means a lot of arrivals in this corridor come with a security clearance, a pension decision, or a government-contract relationship already in hand before the tax rates even enter the conversation.

Ottawa’s federal public service has a near-exact counterpart in DC’s own bureaucracy, and the same is true one layer out: DND has a natural landing spot at the Pentagon or with the defence contractors clustered in Arlington and Bethesda, and Ottawa’s policy and NGO world maps onto DC’s think tanks, the World Bank, the IMF, and K Street lobbying firms. Ottawa’s tech scene, Shopify alumni, the BlackBerry-era talent pool, and a run of smaller startups, has its own DC-area counterpart in Amazon’s HQ2 in Arlington and the government-contracting tech firms based in Tysons Corner and Reston.

Does it matter if I live in Virginia or Maryland?

Enormously, and it’s the single biggest decision in this corridor. DC has reciprocity agreements with both Maryland and Virginia covering wage income, so the jurisdiction taxing an Ottawa arrival’s paycheck is decided by the address on the lease, not by which building the employer badge scans into.

Live in DC and work in either state, you pay only DC tax. Live in Maryland or Virginia and work inside DC, you pay only your home state’s tax, with no DC filing at all. Someone who takes a World Bank or Pentagon-adjacent job and rents in Arlington, Alexandria, or McLean pays Virginia tax; the same job with a Bethesda, Silver Spring, or Chevy Chase address pays Maryland’s state-plus-county combination instead. Only a Georgetown, Capitol Hill, or Dupont Circle lease pulls DC’s own brackets into play, and none of the three is obviously cheaper across every income level, which is why this is worth running with real numbers before signing anything.

How does DC treat the RRSP and TFSA?

The same way the federal treaty intends, with DC simply riding along on federal numbers. DC’s return starts from federal adjusted gross income, so the RRSP’s treaty-based deferral carries straight through with no separate DC election or add-back required.

Distributions, once they start, land in federal AGI as pension income and DC taxes them at the ordinary bracket rate, same as any other retirement income. The TFSA gets none of that protection, since the treaty deferral is RRSP-specific, and TFSA investment income flows into DC’s tax base through federal AGI just like it does everywhere else in the US. The standard move applies here too: close the TFSA before departure rather than carrying its PFIC and foreign-trust reporting questions into a filing that gets no offsetting benefit from keeping it open.

What happens to my Ontario return when I leave?

The same departure sequence that applies no matter which US jurisdiction comes next. Canada treats worldwide assets as sold at fair market value on the departure date, and provincial tax applies at Ontario’s rates for the year of departure regardless of where the next tax year gets filed.

The final Ontario return runs from January 1 to that date. Forms T1161 and T1243 capture the deemed disposition where applicable, and the CRA needs formal notification of non-resident status. On the US side, the arrival-year return is either a dual-status return or a full-year election, covered in full in the first US tax return guide.

What other DC taxes should I plan around?

Sales tax, property tax, and DC’s own estate tax, in roughly that order of how often they come up. DC’s sales tax runs 6% on general goods but steps up to 10% on restaurant meals and 10.25% on hotel stays, both well under Ontario’s flat 13% HST on the same purchases, though the meal surcharge lands harder on daily city living than a flat rate does.

Property tax in DC runs around 0.85% on the first tier of assessed value, somewhat lower than the roughly 1.1% to 1.2% typical in Ottawa, though DC’s assessed values in Georgetown or Capitol Hill can offset that gap. DC also levies its own estate tax, with a $4,528,800 exemption that sits far below the federal exemption, which matters for an Ottawa household with meaningful non-registered assets settling permanently rather than on a fixed-term posting.

What happens to OHIP and the Ottawa house?

OHIP doesn’t end the day the moving truck leaves. Ontario’s health coverage runs on a residency test built around roughly 212 days a year in the province, and a genuine permanent departure typically carries a short tail of continued coverage after the ministry is notified, after which DC, Maryland, or Virginia coverage (or an employer plan) needs to be in place.

The Ottawa house is exempt from the deemed-disposition rules if it was a principal residence, though the exemption stops accruing once Canadian residence ends, and Ontario’s land transfer tax only applies to a buyer, so it doesn’t touch the sale on the way out. Unlike Toronto, Ottawa has no municipal land transfer tax stacked on top of the provincial one, so that part of the exit is simpler than the GTA version of this move.

Where do most Ottawa arrivals settle?

It splits roughly three ways, and the split tracks the reciprocity decision above more than lifestyle preference. None of it changes the underlying analysis, but it does mean the neighborhood conversation and the tax conversation are really the same conversation in this corridor.

Federal policy staff and Hill-adjacent professionals cluster in DC proper, in Georgetown, Capitol Hill, Dupont Circle, and Adams Morgan, trading a higher DC bracket for the shorter commute and the neighborhood feel closest to Ottawa’s own ByWard Market and Glebe. Defence and government-contracting arrivals lean toward the Virginia suburbs, Arlington, Alexandria, and McLean, close to the Pentagon and the Tysons Corner and Reston tech-contractor corridor. World Bank, IMF, and international-organization staff show up disproportionately in the Maryland suburbs, Bethesda, Silver Spring, and Chevy Chase, often for the schools as much as the commute.

What should I do before I sign a lease?

Settle the residence question before the neighborhood question, because in this corridor they’re the same decision with a large dollar difference attached. DC, Maryland, and Virginia each tax differently, and reciprocity means the choice of address, not the employer’s building, decides which one applies to the paycheck. The Canadian exit runs on its own checklist regardless of that choice, so it’s worth handling in parallel rather than waiting on the US side to settle first.

• Moving from Canada to Washington DC, the province-agnostic version of this corridor
• Moving from Ontario to New York, a higher-tax US corridor for comparison
• Moving from Toronto to New York, the state-plus-city sibling corridor
• Moving from Ontario to Florida, the no-income-tax contrast
• Canada departure tax, T1161 and T1243
• Leaving Canada permanently, the full checklist
• RRSPs and TFSAs on a move 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
• State income tax on a cross-border move
• Ottawa to New York, the government and policy corridor to NYC
• Toronto to Washington DC, the consulting and policy corridor from Bay Street
• Montreal to Washington DC, the international organizations corridor from Quebec

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