Tax residence in Canada for U.S. citizens and green card holders

Canada treats you as a factual resident if you have significant residential ties there — a home, a spouse or dependants — and as a deemed resident if you spend 183 days or more in Canada in the year. U.S. citizens remain taxable in the United States; the U.S.–Canada treaty settles dual residence and double taxation.

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Free, no sign-up, about 3 minutes. Conclusion under U.S. law, compared with the law of Canada and the tax treaty.

When Canada treats you as a tax resident

Canadian residence is factual: it depends on significant residential ties (home, spouse or partner, dependants); without them, 183 days of presence make you a deemed resident.

You have significant residential ties with Canada (home, spouse/partner or dependants) — you are a factual resident of Canada from the date of arrival and taxed on worldwide income.
You were in Canada 183 days or more in the year — under s. 250(1)(a) you are deemed resident in Canada for the whole year.

When you are a nonresident

No significant residential ties with Canada and fewer than 183 days — you are not resident in Canada. Pay for work actually performed in Canada is still taxable there.

Where the rules of Canada clash with U.S. tax rules

Collision: U.S. citizens stay taxable in the United States even as Canadian residents. Canada taxes you as a resident on worldwide income; the United States taxes its citizens on worldwide income wherever they live. The tie-breaker in Art. IV(2) does not remove U.S. tax: under the saving clause (Art. XXIX(2)) the Convention does not affect U.S. taxation of its citizens, while Art. XXIV is excepted (Art. XXIX(3)). Relief follows Art. XXIV(4): Canada deducts U.S. tax on U.S.-source income only up to the tax a non-citizen would pay, and the United States credits the Canadian tax paid after that deduction.
Collision: a home in Canada makes you resident from the day you arrive. An owned or leased dwelling in Canada that is available to you is a significant residential tie: Canada treats you as resident from the date of arrival, without counting days. If you are also a U.S. resident (citizen, green card or substantial presence), Art. IV(2) decides treaty residence: permanent home; if in both States or in neither — centre of vital interests; then habitual abode, citizenship, mutual agreement.
Collision: family in Canada makes you resident in Canada. A spouse, partner or dependants in Canada are a significant residential tie, so Canada treats you as a factual resident even with fewer than 183 days. If you are also a U.S. resident, Art. IV(2) decides: family alone is not a «permanent home», but it weighs heavily for the centre of vital interests when you have a home in both countries or in neither.
Collision: 183 days in Canada while resident in the U.S.. Canada deems you resident for the whole year after 183 days; the United States treats you as resident under its own rules. If the treaty tie-breaker (Art. IV(2)) makes you a U.S. resident, s. 250(5) deems you not resident in Canada. Canada can still tax pay for work done in Canada unless it does not exceed $10,000 (in Canadian currency), or you were present not more than 183 days in any twelve-month period commencing or ending in the fiscal year and the pay is not paid by a Canadian resident or borne by a Canadian permanent establishment (Art. XV(2)).

What else to know

The treaty prevails — and status can change during the year. Under s. 250(5) a person who is resident in the other country under a treaty is deemed not resident in Canada. Canadian courts test treaty residence at a specific date, so status can change within a year (Davis, 2018 TCC 110, applying Art. IV(2) of the Canada–U.S. Convention; Tanga, 2024 TCC 80). You can ask the CRA for an opinion with Form NR74.
Arrival and departure: part-year residence, step-up and departure tax. In the year you arrive Canada taxes worldwide income only from the date you become resident (s. 114), and most of your property is deemed acquired at fair market value on that date (s. 128.1(1)). When you leave Canada most property is deemed disposed of at fair market value (s. 128.1(4)) — the «departure tax». The United States determines its own status per calendar year.
Working in Canada for a U.S. employer: $10,000 or 183 days in 12 months. Employment income is taxed where the work is physically performed: working remotely for a U.S. employer from Canada is employment exercised in Canada. If you are a U.S. resident under the treaty, Canada does not tax that pay if it does not exceed $10,000, or if you were present not more than 183 days in any twelve-month period commencing or ending in the fiscal year and the employer is not Canadian and has no Canadian permanent establishment bearing the cost (Art. XV(2)).
RRSP/RRIF: deferral of U.S. tax under Art. XVIII(7). Art. XVIII(7) lets an individual defer U.S. tax on income accruing in a Canadian retirement plan until it is distributed; this paragraph is an exception to the saving clause, so it also applies to U.S. citizens (Art. XXIX(3)(a)). Under Rev. Proc. 2014-55 eligible individuals are treated as having made this election automatically and no longer file Form 8891. Paragraphs 8–13 of Art. XVIII allow, under conditions, cross-border deductions for contributions to qualifying retirement plans.
Social security: U.S.–Canada totalization agreement. The U.S.–Canada social security agreement (in effect since 1 August 1984) prevents paying both U.S. Social Security/self-employment tax and Canadian contributions on the same work. Generally you are covered where you work; an employee temporarily sent by the same employer (generally for a period not expected to exceed 5 years) stays in the home system; self-employed persons are generally covered by their country of residence.

How dual residence is resolved

If both countries treat you as a resident, Art. IV(2) of the treaty applies: Convention between Canada and the United States of America with respect to Taxes on Income and on Capital (signed 26 September 1980, amended by the Protocols of 14 June 1983, 28 March 1984, 17 March 1995, 29 July 1997 and 21 September 2007). The tests are applied in order — permanent home, center of vital interests, habitual abode, nationality, and finally mutual agreement between the tax authorities. U.S. citizens remain taxable in the United States under the saving clause.

Terms you will come across in Canada

factual resident: resident because of significant residential ties to Canada
deemed resident: resident because of 183 days or more in Canada in the year
significant residential ties: home, spouse or common-law partner, dependants in Canada
NR74 / NR73: CRA forms to request a residency determination
part-year resident: resident for only part of the year of arrival or departure
CRA: Canada Revenue Agency

Questions

I am a U.S. citizen — do I still pay U.S. tax if I live in Canada?

Yes. The United States taxes its citizens on worldwide income wherever they live, and the treaty keeps that right through the saving clause (Art. XXIX(2)). You file Form 1040 every year; double taxation is relieved mainly by the foreign tax credit (Form 1116) or the foreign earned income exclusion (Form 2555), plus the treaty's relief article (Art. XXIV).

Which treaty applies between the U.S. and Canada?

The Convention signed on 26 September 1980 (in force 16 August 1984) with five protocols; the Fifth Protocol of 21 September 2007 has been in force since 15 December 2008. Dual residence of individuals is resolved under Art. IV(2).

Do I become a Canadian resident after 183 days?

If you have no significant residential ties, spending 183 days or more in Canada in a year makes you a deemed resident. With a home, spouse or dependants in Canada you are usually a factual resident from the day you settle. Under Art. XV(2) Canada can tax salary for work there above CAD 10,000 if you are there more than 183 days in any 12-month period or a Canadian employer bears the pay.

Sources

Legislation and official guidance

Income Tax Act, s. 2(1), 2(3) — Income tax on worldwide income is payable by every person resident in Canada at any time in the year; non-residents pay only on income earned in Canada.
CRA Income Tax Folio S5-F1-C1, «Determining an Individual's Residence Status» — Factual residence turns on significant residential ties with Canada: a dwelling (owned or leased, available for occupation), a spouse or common-law partner, dependants. Secondary ties (car, provincial health insurance, bank accounts, work permit) are weighed together. Any part of a day counts as a day.
Income Tax Act, s. 250(1)(a) — A person who sojourned in Canada for 183 days or more in the year is deemed resident in Canada throughout the year.
Income Tax Act, s. 115(1)(a)(i) — A non-resident is taxed on income from employment performed in Canada.
Art. XXIX(2)–(3) U.S.–Canada Convention (saving clause) — Except as provided in para. 3, the Convention does not affect taxation by a Contracting State of its residents (as determined under Art. IV) and, for the United States, of its citizens. Para. 3(a) exceptions include Art. XVIII paras 1, 3, 4, 5, 6(b), 7, 8, 10 and 13, and Articles XIX, XXI, XXIV (elimination of double taxation), XXV and XXVI (mutual agreement procedure).
Art. XXIV(4) U.S.–Canada Convention — Where a U.S. citizen is a resident of Canada: (a) Canada allows a deduction from Canadian tax for U.S. income tax on profits, income or gains arising in the United States, limited to the U.S. tax a non-citizen would pay; (b) the United States credits Canadian income tax paid after that deduction; (c) the U.S. credit does not reduce the portion of U.S. tax deductible from Canadian tax.
Art. IV(2) U.S.–Canada Convention — Dual-resident individuals: (a) permanent home available; if in both States or in neither — the State with which personal and economic relations are closer (centre of vital interests); (b) if that cannot be determined — habitual abode; (c) habitual abode in both or neither — citizenship; (d) citizen of both or neither — competent authorities settle the question by mutual agreement.
Income Tax Act, s. 250(5) — A person is deemed not resident in Canada if, under a tax treaty, he or she is resident in the other country and not in Canada.
Art. XV(2) U.S.–Canada Convention — Employment income for work in the other State is taxable only in the State of residence if (a) it does not exceed $10,000 in the currency of the other State, or (b) the employee is present there not more than 183 days in aggregate in any twelve-month period commencing or ending in the fiscal year concerned and the pay is not paid by or on behalf of a resident of the other State nor borne by a permanent establishment there.
CRA: Determining your residency status (NR74 / NR73) — Form NR74 asks the CRA for an opinion on residence status when entering Canada; NR73 when leaving.
Income Tax Act, s. 114 — Part-year residents are taxed on worldwide income only for the part of the year they are resident in Canada.
Income Tax Act, s. 128.1(1), (4) — Immigration (s. 128.1(1)): on becoming resident, the taxpayer is deemed to dispose of and reacquire most property at fair market value. Emigration (s. 128.1(4)): on ceasing to be resident, the taxpayer is deemed to dispose of most property at fair market value (departure tax).
CRA: Newcomers to Canada and the CRA — You become resident for tax purposes when you establish significant residential ties with Canada — for most newcomers, from the first day of living in Canada.
Art. XVIII(7)–(13), (15) U.S.–Canada Convention — Para. 7: an individual may elect to defer taxation in one State on income accrued in a pension or retirement plan of the other State until distribution. Paras 8–13 allow, under conditions, deductions for contributions to qualifying retirement plans of the other State for cross-border workers; para. 15 defines «qualifying retirement plan».
Rev. Proc. 2014-55, sections 4.02, 5.02 (IRB 2014-44) — Eligible individuals are treated as having made the Art. XVIII(7) election to defer U.S. tax on undistributed income in Canadian retirement plans (RRSP/RRIF) and need not file Form 8891, which is obsolete as of 31 December 2014.
SSA POMS GN 01701.005 — International Social Security (Totalization) Agreements — U.S.–Canada agreement effective 1 August 1984.
SSA, Social Security Bulletin Vol. 78 No. 4 (2018), «Social Security Totalization Agreements» — General rule: coverage where you work (territoriality); exception: a worker temporarily sent abroad by the same employer, generally for a period not expected to exceed 5 years, stays covered by the home country; self-employment is generally covered by the country of residence.
Income Tax Act, s. 126 — A Canadian resident deducts foreign income tax from Canadian tax (within the statutory formula).
Art. IV(2)(a) of the Convention — A dual resident is deemed a resident of the State in which he has a permanent home available to him; if he has a permanent home in both States or in neither, of the State with which his personal and economic relations are closer (centre of vital interests).
Art. IV(1) of the Convention — Residence includes liability to tax by reason of citizenship; a U.S. citizen or green-card holder who is not resident in Canada is a U.S. resident only with a substantial presence, permanent home or habitual abode in the U.S. and closer personal and economic relations with the U.S. than with any third State.
Art. IV(2)(b) of the Convention — If the centre of vital interests cannot be determined, you are deemed a resident of the State in which you have an habitual abode.
Art. IV(2)(c), (d) of the Convention — Habitual abode in both States or in neither — resident of the State of which you are a citizen; citizen of both or neither — the competent authorities shall settle the question by mutual agreement.

Case law

Tax Court of Canada, Biya v. The Queen, 2020 TCC 113, 2020-10-13 — The taxpayer worked in Ethiopia, but his family and ties remained in Canada — he was held to be resident in Canada («settled existence in Canada»).
Tax Court of Canada, Corkum v. The Queen, 2015 TCC 38, 2015-02-23 — The family had lived in Egypt for many years — their ordinary place of residence was there, and Canadian residence had been lost.
Tax Court of Canada, Nonis v. The Queen, 2021 TCC 31, 2021-04-14 — A non-resident is taxable in Canada only on the part of salary attributable to days actually worked in Canada.
Tax Court of Canada, Davis v. The Queen, 2018 TCC 110, 2018-06-14 — Under Art. IV(2) of the Canada–U.S. Convention, with a permanent home in both countries and an inconclusive centre of vital interests, habitual abode decided: the taxpayer was a U.S. resident on the date the 401(k) proceeds were received, so they were not taxable in Canada. Treaty residence is tested at a specific date.
Tax Court of Canada, Tanga v. The King, 2024 TCC 80, 2024-05-31 — Resident of both Canada and Cameroon: the Canadian address was not a home available at all times; under Art. 4 of that treaty and s. 250(5) the taxpayer was deemed non-resident of Canada for the period at issue.

Updated 2026-11-04. The result is for information only and is not tax or legal advice. Tax authorities and courts may interpret the rules differently, including because of circumstances not covered here, and the law changes. Consult a qualified adviser before making decisions.

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