Pre-Emigration Planning: Leaving Canada for the United States

A move from Canada to the United States is not a single tax event — it is two tax systems acting on the same person at nearly the same time. On the Canadian side, ceasing residence triggers a deemed disposition of most of your property under the Income Tax Act. On the U.S. side, you become subject to tax on your worldwide income once you meet a residency test. The problem is that the two countries measure your assets, your timing, and your cost base differently, and without planning the overlap can produce double taxation, mismatched basis, and information-return penalties that dwarf the underlying tax. The window to fix most of this closes the day you arrive, which is why the U.S.-side preparation should run in parallel with the Canadian departure plan rather than after it.

Why pre-emigration planning matters

Canada uses emigration as its “last shot” at taxing accrued gains. When you stop being a Canadian tax resident, subsection 128.1(4) of the Income Tax Act deems you to have disposed of most of your capital property at fair market value immediately before departure, and the resulting gain is taxed on your final Canadian return. The United States, by contrast, does not give new residents an automatic fresh start. Its default rule is that you keep your original historical cost base on assets you owned before arriving. So if you bought a security years ago for $100, paid Canadian departure tax on the increase to $300 on the way out, and later sell it in the U.S. for $350, the IRS will, absent an election, see a $250 gain measured from your old $100 cost — taxing again the appreciation Canada already taxed. Planning before the move is what lets you reset the U.S. measuring stick, time recognition of gains and losses, and decide which assets, accounts, and entities should be dealt with on which side of the border.

The stakes are not limited to capital gains. RRSPs, TFSAs, RESPs, Canadian corporations, and trusts all change character the moment you become a U.S. person, and several of them carry annual U.S. reporting obligations with steep penalties for getting it wrong. A Canadian private corporation, for example, can become a controlled foreign corporation in U.S. eyes, exposing you to Subpart F and GILTI inclusions on income you have not actually received; a TFSA, prized in Canada for its tax-free growth, generally receives no U.S. recognition and may be treated as a foreign trust holding PFICs. Decisions made (or not made) before arrival determine how heavy that ongoing compliance burden will be, and some structures are far cheaper to simplify, crystallize, or wind down while you are still purely a Canadian taxpayer. Our departure tax planning and cross-border tax overview pages set out the broader framework; this page focuses on the U.S. side of the same move. Many people moving south are also leaving behind Canadian ties they expect to keep — rental property, a business interest, or registered savings — and each of those raises its own dual-country question that is far easier to resolve before, not after, the move.

The mechanics in both countries

Canada — the departure tax. On the date you become a non-resident, you are deemed to have sold most of your property at fair market value. Capital gains are realized and taxed; capital losses can offset them. Certain assets are excluded from the deemed disposition — notably Canadian real property, Canadian business property, and registered plans such as RRSPs — which is one reason the Canadian and U.S. treatment of the same portfolio can diverge so sharply. You can generally elect to defer payment of the departure tax (often by posting security with the CRA) rather than paying it all in the departure year, and you must report affected property on Form T1161. The departure tax explained guide walks through the Canadian side in detail.

United States — becoming a resident. You become a U.S. resident for income-tax purposes under either the green card test (residency starts the first day you are present as a lawful permanent resident) or the substantial presence test, which counts physical days: at least 31 days in the current year and 183 weighted days over a three-year window (all of the current year, one-third of the prior year, and one-sixth of the year before that). Once you cross the line, the U.S. taxes your worldwide income from your residency starting date forward. Critically, the day you arrive does not, by itself, change the cost base the IRS will use when you eventually sell pre-arrival assets — that is the gap the treaty is designed to close.

The dual-status first year. In the calendar year you move, you are usually a dual-status taxpayer: a nonresident for the part of the year before your residency starting date and a resident afterward. You are taxed on worldwide income only for the resident portion, and on U.S.-source income for the nonresident portion. Dual-status returns have their own filing mechanics and restrictions (for example, limits on the standard deduction and on certain joint-filing options), and the treaty and the first-year choice rules can change the most efficient result. There is a planning point hidden here: income you can realize before your residency starting date — for instance, a bonus, a stock-option exercise, or the sale of an appreciated asset — generally falls outside the U.S. resident period, so the sequence of events in your move-year can materially change your first U.S. tax bill. The year-one U.S. residency planning guide covers this first-year return in more depth.

How the treaty makes the two systems fit together

The Canada-U.S. tax treaty contains the provisions that prevent the timing and basis mismatches described above from turning into double tax.

Article XIII(7) — coordinating gains and stepping up U.S. basis. Where Canada deems you to dispose of property on emigration but the U.S. would not recognize that gain until an actual later sale, Article XIII(7) lets the individual elect, for U.S. purposes, to be treated as having sold and repurchased the property at fair market value immediately before the Canadian taxable event. The practical effect is to align the U.S. cost base with the value on which Canada charged departure tax, so the same appreciation is not taxed twice. This election is available to a person emigrating from Canada whether or not they were already a U.S. citizen, and it must be made deliberately and consistently — it is not automatic, and choosing which assets to apply it to is a planning decision, not a clerical one.

Article XVIII — RRSPs and pensions. Article XVIII(7) allows an eligible U.S. resident to defer U.S. tax on income that accrues inside an RRSP or RRIF until amounts are actually distributed, matching Canada's deferral. Since Rev. Proc. 2014-55, this deferral is treated as elected automatically for eligible individuals, and the old Form 8891 annual election is obsolete — but the underlying accounts may still be reportable on FBAR and FATCA forms, and distributions are taxable when paid (see RRSP distributions for U.S. residents). TFSAs and RESPs do not enjoy comparable U.S. deferral and are often treated as foreign grantor trusts for U.S. purposes, which is one of the most common pre-move clean-up items.

Article IV — the residency tie-breaker. In the transition period, you can find yourself a tax resident of both countries at once. Article IV's tie-breaker tests (permanent home, centre of vital interests, habitual abode, and citizenship) determine which country has the primary claim, and getting the timing of your move right can keep the year you straddle from becoming unnecessarily complex.

Article XXIV — foreign tax credits. Where income or gain remains taxable in both countries, Article XXIV's relief mechanism, together with each country's domestic foreign-tax-credit rules, is meant to eliminate the residual double tax. Credits depend on matching the right income to the right year in the right country — mismatched timing between the Canadian departure year and the U.S. resident year is exactly where credits can fail to line up.

Common traps

• Assuming the U.S. gives you a step-up on arrival. It does not. Without the Article XIII(7) election, your pre-arrival assets keep their original cost base for U.S. purposes, and gains Canada already taxed on departure can be taxed again when you sell.
• Missing the basis election deadline. The Article XIII(7) election has to be made properly and on time; it cannot be reverse-engineered years later when you finally sell the asset and discover the mismatch.
• Triggering U.S. residency too early. Day-counting under the substantial presence test, or the first-year choice, can pull your residency starting date earlier than expected and sweep more income into the U.S. resident period than necessary. The order in which you sell assets, close accounts, and physically relocate matters.
• Ignoring TFSAs, RESPs, and Canadian corporations. These can become foreign grantor trusts, passive foreign investment companies (PFICs), or controlled foreign corporations triggering GILTI — each with onerous U.S. forms. Restructuring before arrival is usually far cheaper than unwinding afterward.
• Overlooking FBAR and FATCA. As a U.S. resident you must file an FBAR (FinCEN Form 114) when your foreign accounts exceed US$10,000 in aggregate at any point in the year, and FATCA Form 8938 above higher thresholds. Penalties are severe and apply even when no tax is owed — see FATCA and FBAR compliance and, where past years need correcting, the streamlined filing procedures and voluntary disclosure programs.
• Forgetting the exit on the other end. If you become a long-term green-card holder or U.S. citizen and later sever U.S. ties, the U.S. expatriation regime under section 877A can apply. A “covered expatriate” — net worth of $2 million or more, average annual net income tax over $206,000 (2025 figure, indexed), or failure to certify tax compliance — faces a mark-to-market exit tax, subject to an exclusion of US$890,000 of gain for 2025 (US$910,000 for 2026). Decisions made on entry, including how long you hold a green card, shape that future exposure.

How Barrett Tax Law approaches pre-emigration planning

We start by mapping your assets, accounts, and entities on both sides of the border and modelling the Canadian departure-tax result alongside the U.S. position you will inherit on arrival. From there we work out the timing of the move and the residency starting date, identify which assets should carry an Article XIII(7) basis election, confirm the RRSP and pension treatment, and flag the TFSA, RESP, corporate, and trust structures that need attention before you become a U.S. person. We coordinate the U.S. side with the Canadian pre-relocation planning so the departure return and the U.S. dual-status return tell a consistent story, and we set up the FBAR/FATCA reporting you will owe as a new resident. Because Simone Barrett is admitted in Ontario and Florida, the analysis is done with both legal frameworks in view. If a U.S. estate-tax exposure is in play — a common issue for higher-net-worth movers — we coordinate with our work on U.S. estate tax for Canadians. We offer a free initial consultation to scope your move and identify the decisions that have to be made before you arrive; you are welcome to reach out through the cross-border tax page.

This page provides general information only and is not legal or tax advice. Cross-border tax depends on your specific facts and on the rules of both Canada and the United States, which change over time; figures and treaty positions should be confirmed for your situation before you act. Please obtain advice tailored to your circumstances before making any decision about emigrating from Canada.