Moving from Toronto to New York for work: how do the taxes actually work?

New York is not one tax question, it’s three stacked on top of each other, and people usually get the middle one wrong. There’s whether New York State treats you as a resident, which has two independent routes in. There’s New York City’s own personal income tax, which reaches city residents rather than everyone who works in the city. And there’s what the state can tax when you aren’t a resident at all. The Canadian side sits underneath all of it and runs on its own rules.

Am I a New York State resident?

There are two routes to being a resident and you only need to fall down one of them. The first is domicile, which is about where your real home is. The second has nothing to do with intent at all: it counts days and looks at whether you keep a place to live in the state. That second route is the one that surprises people, because you can be a New York resident for tax purposes while insisting, accurately, that you never meant to move there.

“A resident individual means an individual: (A) who is domiciled in this state, unless (i) the taxpayer maintains no permanent place of abode in this state, maintains a permanent place of abode elsewhere, and spends in the aggregate not more than thirty days of the taxable year in this state” NY Tax Law 605(b)(1)(A)

The domicile limb has an escape, and note how narrow it is. Keeping no permanent place of abode in New York, keeping one elsewhere, and spending not more than thirty days in the state. Thirty days is roughly one day a fortnight. There’s a second, longer escape in the same provision built around 450 days abroad within a 548-day window, with its own limits on the taxpayer’s and the family’s New York presence.

The statutory-residency route is separate and blunter.

“who maintains a permanent place of abode in this state and spends in the aggregate more than one hundred eighty-three days of the taxable year in this state, whether or not domiciled in this state for any portion of the taxable year, unless such individual is in active service in the armed forces of the United States” NY Tax Law 605(b)(1)(B)

Read the last clause. “Whether or not domiciled in this state for any portion of the taxable year” means intent is irrelevant on this route, and the provision carves out only active military service. The state’s own instructions put the test more fully than the bare statutory words do, and both additions matter.

“You maintain a permanent place of abode in New York State for substantially all of the tax year and spend 184 days or more in New York State during the tax year; whether or not you were domiciled in New York State (unless you were in active service in the military). Any part of a day is a day for this purpose.” Instructions for Form IT-203

Three things to take from that. The abode has to be maintained for substantially all of the year, not merely at some point in it. “More than one hundred eighty-three” is 184 or more, so 183 days exactly does not reach it. And any part of a day counts as a day, which makes a commuting pattern add up faster than people expect.

The same instructions describe qualifying living quarters, and the sentence runs further than it is usually quoted: “Living quarters include a house, apartment, co-op, or any other dwelling that is suitable for year-round use, that you or your spouse maintain or pay for, or that is maintained for your primary use by another person, family member, or employer.” The instructions then give their own example, a company that leases a New York State apartment for one of its officers, and say that officer is maintaining living quarters in the state. The description reaches an employer-provided apartment on its own terms.

Route in	What it turns on	Does intent matter?
Domicile, 605(b)(1)(A)	Where your true home is, subject to a narrow 30-day escape	Yes, domicile is intent-laden
Statutory residency, 605(b)(1)(B)	An abode in the state plus more than 183 days of the taxable year, with only an active-military carve-out. The “substantially all the year” limb on the abode, and the 184-days-or-more rendering, come from the IT-203 instructions rather than from 605(b)(1)(B)	No, expressly not
Nonresident	Neither of the above, and not a part-year resident	n/a

Do I owe New York City tax if I work in Manhattan?

Not on the personal income tax, unless you count as a city resident. And a city resident is not simply someone with a city address: Tax Law 1305(a)(2) also reaches anyone who keeps a permanent place of abode in the city and spends more than 183 days of the taxable year there, whether or not domiciled in it. The instinct is that working in Manhattan must attract Manhattan tax, and the tax runs on city residence instead. The enabling statute authorises a city of a certain size to impose the tax rather than imposing it itself.

“Authority to impose taxes. (a) Notwithstanding any other provision of law to the contrary, any city in this state having a population of one million or more inhabitants, acting through its local legislative body, is hereby authorized and empowered to adopt and amend local laws imposing in any such city … (1) a tax on the personal income of residents of such city” NY Tax Law 1301(a)

That section names no city. It sets a population threshold and leaves the imposition to a local law, so this page cites it for the shape of the tax rather than as authority for which city levies it.

“Residents of such city” is a defined term, and the definition has two limbs. The first, 1305(a)(1), reaches someone “domiciled in the city wherein the tax is imposed”, with the same thirty-day and 450-in-548 escapes the state provision carries. The second mirrors the state’s day-count test.

“(2) who maintains a permanent place of abode in such city and spends in the aggregate more than one hundred eighty-three days of the taxable year in such city, whether or not domiciled in this city for any portion of the taxable year, unless such individual is in active service in the armed forces of the United States.” NY Tax Law 1305(a)(2)

So an apartment in the city plus enough days in the city can make you a city resident without any change of address. If you keep a place in Manhattan and use it regularly, the city question is live even if your home is somewhere else entirely.

The caveat this page made about 1301 applies to 1305 as well. Section 1305 names no city either. “Such city” and “the city wherein the tax is imposed” both point back to whichever city adopted the local law under 1301, so what makes these words New York City is that local law rather than the text of either section.

So the practical consequence is a real one when you’re choosing where to live. Someone who takes a job in Manhattan and makes a home in Brooklyn or Queens is domiciled in the city, because those are boroughs of New York City, and 1305(a)(1) reaches a city domiciliary. Signing a lease is not by itself acquiring a domicile, which is the same distinction the state section turns on, so what settles it is where the home actually is rather than whose name is on the tenancy. Someone who takes the same job and lives outside those boroughs is not a city resident on that basis alone. But “on that basis alone” is doing work in that sentence, because the day-count route above can still reach them if they keep a place inside the city. The state tax follows you either way; the city tax asks about your home first and your days second.

Worth being precise about what this does and does not say. It’s about the city’s personal income tax. The IT-203 instructions are titled for “New York State, New York City, Yonkers, MCTMT”, so there are other levies in the same return package, including a Yonkers component and the metropolitan commuter transportation mobility tax. Those run on their own rules and this page does not work through them.

What can New York tax if I’m a nonresident?

Income connected with New York sources, rather than everything you earn. The statute builds the nonresident’s New York figure from the items in federal adjusted gross income that are derived from or connected with New York sources.

“The New York source income of a nonresident individual shall be the sum of the following: (1) The net amount of items of income, gain, loss and deduction entering into his federal adjusted gross income, as defined in the laws of the United States for the taxable year, derived from or connected with New York sources” NY Tax Law 631(a)

For an employee, the practical effect is that days worked in New York drive the allocation, so day records matter. The IT-203 package includes a dedicated allocation worksheet, Form IT-203-B, for that purpose. This page does not work through the allocation method itself, and note that a work-from-home day outside the state is not automatically a non-New-York day.

How is the tax actually computed in the year I move?

Not the way most people expect. New York does not simply tax the slice of income earned after arrival at the ordinary rates. It calculates a base tax as though you were a full-year resident, then applies the percentage of your income that is subject to New York tax.

“To determine how much tax you owe, use Form IT-203, Nonresident and Part-Year Resident Income Tax Return. You will calculate a base tax as if you were a full-year resident, then determine the percentage of your income that is subject to New York State tax” Instructions for Form IT-203

That mechanic matters in a move year, because the base tax is built on a full-year-resident computation. Whether pre-arrival Canadian income reaches it depends on how your federal return is filed, since the base starts from federal figures and a full-year election and a dual-status return put different amounts there. This page does not resolve that choice. What it does say is that a move-year bill can exceed a simple pro-rata estimate, and that the reason is a rate effect rather than a second tax.

What about the Canadian side?

It’s a separate analysis and this page does not resolve it. Whether Canada continues to tax you turns on whether you have ceased Canadian residence, which is its own test with its own factors, and a New York residency conclusion does not decide it. It’s entirely possible to be a New York resident under the day-count route while remaining a Canadian resident, which is the situation that produces double taxation questions and treaty tie-breaker analysis.

• Whether you’re still a Canadian tax resident, the prior question for the entire Canadian side
• The Canadian departure tax and its forms
• Dual-status returns and the first-year election, for the US federal layer
• When a treaty position needs Form 8833

The federal US layer is separate again. New York residency has nothing to do with the substantial presence test or with whether you file as a resident alien federally, and the two can reach different answers in the same year.

What should I do next?

Establish three things first: where you’re domiciled, whether you maintain a place to live in New York State, and how many days you spend there. Those three settle the state question, because the day-count route needs an abode plus more than 183 days of the taxable year, which the IT-203 instructions render as substantially all the year plus 184 days or more, and intent doesn’t enter it. Then run the same two questions for the city: domicile in the five boroughs is one way in, and 1305(a)(2) is the other, reaching anyone with a place in the city and more than 183 days there.

• If your home is outside the city, the live question is whether you keep a place inside it and how many days you spend there. Either route can make you a city resident, and neither is the same as where you work.

Keep a contemporaneous day record from the first trip rather than starting one when a question arises. The statutory-residency route runs on a day count plus an abode which the instructions say has to be maintained for substantially all the year, and the burden of showing the count falls where you’d expect.

• Moving from Canada to Georgia, a lower-tax alternative corridor with a flat 5.39% rate and no city tax
• Moving from Canada to Illinois, the Chicago corridor with a flat 4.95% rate and no city tax
• Moving from Canada to New Jersey, where many NYC workers actually live
• Moving from Canada to Connecticut, the other NYC commuter state (Fairfield County hedge fund corridor)
• Moving from Canada to New York, the generic corridor from any province
• Moving from Montreal to New York, the Quebec-specific city corridor
• Toronto to Los Angeles, the entertainment and tech corridor
• Toronto to Dallas, the no-state-income-tax DFW corridor
• Toronto to Chicago, the flat-tax Midwest corridor
• Toronto to San Francisco, the Bay Area tech corridor
• Toronto to Boston, the Bay Street to State Street corridor
• Toronto to Atlanta, the tech and film corridor
• Toronto to Denver, the outdoor-tech corridor
• Ottawa to New York, the government and policy corridor
• Toronto to Washington DC, the consulting and policy corridor
• Toronto to Charlotte, the banking corridor with NC’s flat 4.5%
• Toronto to Nashville, the healthcare corridor with zero state tax
• Toronto to Houston, the energy corridor with zero state tax
• Toronto to Seattle, the tech corridor into Washington
• Vancouver to New York, the film and finance corridor from BC
• Calgary to New York, the energy finance corridor from Alberta
• Toronto to Philadelphia, the pharma and finance corridor into Pennsylvania
• Toronto to Detroit, the auto and EV corridor into Michigan
• Toronto to Minneapolis, the med-tech and corporate HQ corridor

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