A person can leave Canada, settle in another country, and still file Canadian tax returns as a resident for years afterward — not because the law requires it, but because that is how the returns were prepared the first time and nobody revisited the assumption. Each year’s return quietly repeats the last.
That is worth pausing on, because a filed return is a record of how a taxpayer was reported. It is not, on its own, proof that the underlying residency conclusion was correct. Residency for Canadian tax purposes is a question of fact and law. If the original characterization was wrong, several years of returns can be wrong in exactly the same way, together.
This is a case study of one such file. Our client had relocated from Canada to another country with which Canada has an income tax treaty, and had continued to file as a Canadian resident for several subsequent years. After a full review of the residency history, we concluded there was a strong technical basis for treating the taxpayer as a non-resident of Canada for the relevant prior years. We prepared amended filings and a detailed technical submission. CRA reviewed it, asked for more, and ultimately accepted our residency and treaty position — reassessing the relevant years and refunding the client more than $100,000 of Canadian income tax.
The situation
The taxpayer had built a life in another treaty country but kept filing in Canada as though nothing about their tax residency had changed. The returns were internally consistent and had been accepted as filed. On paper, the taxpayer was a Canadian resident paying Canadian tax on worldwide income. The question we were asked was simple to state and not simple to answer: was that actually right?
To protect confidentiality, we are not identifying the country, the years, the taxpayer’s occupation, or the specific facts of the move. None of those details is necessary to understand the tax issue.
Why the file was more complicated than it appeared
The intuitive test — “I moved away, so I’m a non-resident” — is not the legal test. Canadian residency is a factual and legal determination that looks at the whole of a person’s circumstances, and several features of this file put it well beyond a day-count exercise.
First, residency turns on residential ties, not on citizenship, passport, or the mere existence of a Canadian bank account or a single Canadian asset. CRA’s own guidance treats certain ties — a dwelling available for your use in Canada, a spouse or common-law partner, or dependants who remain here — as especially significant, while a range of secondary ties are weighed collectively rather than as a checklist. No single item decides the question, and no single item is automatically fatal.
Second, time outside Canada matters but is not decisive by itself. Canadian courts have long focused on whether a person remains “ordinarily resident” in Canada — where, in the settled routine of their life, they regularly and customarily live — and an extended absence does not end that on its own.
Third, and most importantly here, a person can have meaningful ties to two countries at once. Where both Canada and another country would treat someone as a resident under their domestic laws, the applicable tax treaty becomes relevant. Treaties contain tie-breaker rules — built around concepts such as where the person has a permanent home available to them and where their personal and economic relations are closer — that assign residence to one country for treaty purposes. And under subsection 250(5) of the Income Tax Act, where an applicable treaty treats the person as resident of the other country and not of Canada, Canadian domestic law itself then deems the person to be a non-resident of Canada. That interaction — domestic residency, treaty residency, and the statutory deeming rule that connects them — is the heart of a file like this, and it is why the analysis cannot be reduced to a rule of thumb.
Our review
We began by reconstructing the taxpayer’s history rather than starting with the tax returns. The returns told us how the taxpayer had been reported; they could not tell us whether that reporting matched the underlying legal position. So we set them aside and rebuilt the picture from the facts.
At a high level, that meant working through the chronology of the relocation and the years that followed; the taxpayer’s residential ties to Canada and to the other country; the personal and economic relationships on each side; the employment circumstances; the continuing connections to both countries; the relevant Canadian domestic law; and the framework of the applicable treaty. The point of the exercise was to establish the complete factual picture, because residency is decided on the whole of the circumstances — not on any one favourable fact.
We are intentionally not describing the particular treaty analysis, the weighting of the taxpayer’s Canadian and foreign ties, the authorities relied upon, or the evidence that proved most important. Those elements were specific to this client and formed part of the professional analysis underlying the submission.
The CRA submission
Changing a residency position for prior years is not a matter of ticking “non-resident” on several amended returns and hoping CRA agrees. Amended filings have to be consistent with a defensible underlying legal position, and CRA is entitled to test that position before accepting it.
What we prepared, therefore, went well beyond the returns themselves. It included the amended Canadian filings, a detailed technical submission, a factual chronology, the relevant Canadian tax law, the treaty analysis, and supporting documentation assembled to stand up to review.
Beyond that, we are deliberately not setting out how the submission was organized, which authorities it relied on, or how the evidence was marshalled. CRA then requested additional residency information, which we provided.
The result
CRA ultimately accepted our technical residency and treaty position and reassessed the relevant taxation years on the basis that the taxpayer was a non-resident of Canada. Those reassessments resulted in more than $100,000 of Canadian income tax being refunded to the client.
That result should be read narrowly. CRA’s acceptance was specific to this taxpayer and these facts. It does not create a precedent, it is not a guarantee, and it does not mean a superficially similar taxpayer would reach the same conclusion — two people with comparable-sounding stories can land on opposite sides of the residency line once the full facts are examined. What the outcome shows is not a formula; it is that a carefully built, factually grounded residency position can be accepted on its merits.
Why this matters
Cases like this arise less often from a hard question than from an unexamined assumption. Someone leaves Canada, the first post-departure return is prepared the way the previous ones were, and the original residency characterization is never revisited. The filings become self-reinforcing.
The characterization matters because residency drives the entire Canadian tax result. A Canadian resident is generally taxable in Canada on worldwide income from all sources. A non-resident is generally taxable in Canada only on certain Canadian-source amounts and other items brought into Canada’s non-resident tax rules, and treaty relief can change the result again. Getting residency wrong therefore does not distort one line of a return; it can affect what income was taxable in Canada at all, and for how many years.
When a historical residency review may be worthwhile
None of the following means a taxpayer is a non-resident. Each is simply a reason it may be worth having the residency position and historical filings looked at:
- You moved abroad but have continued to file Canadian returns as a resident.
- You work internationally while retaining ties to Canada.
- You have meaningful residential ties in two countries at the same time.
- You have received a residency questionnaire from CRA.
- Your prior filings may not reflect your actual date of departure from Canada.
- You have continued to pay Canadian tax on foreign employment or investment income after relocating.
Whether any of these leads anywhere depends entirely on the facts, which is exactly why it is a question for review rather than assumption.
Practical takeaway
Prior tax returns record how a taxpayer was reported; they do not, by themselves, settle the legal question of residence. Where the facts support it, that position can be revisited for open prior years — but only on the strength of a defensible legal analysis and proper documentation, not a change of label. If your circumstances have genuinely changed and your filings never caught up, the gap is worth understanding before it compounds further.
Work with Lepore & Company
If you have left Canada, work internationally, or believe you may have continued filing Canadian tax returns as a resident after becoming a non-resident, it may be worthwhile to have your residency position and historical Canadian filings reviewed. Lepore & Company’s Canadian international tax services and non-resident tax services address exactly these questions, and we assist with CRA reviews and reassessments where a residency position is examined. International-tax matters at the firm are led by Affan Khalid, CPA, CA, Tax Partner.
Confidentiality note
Certain facts and identifying details have been modified or omitted to protect client confidentiality. The result described above was based on the specific facts and circumstances of this case and should not be considered indicative of the outcome in another matter.
Disclaimer
This article is general information only and is not legal, tax, or accounting advice. Canadian residency and treaty residency are highly fact-specific, and the general propositions here are subject to your particular circumstances and to the applicable law and treaty in effect at the relevant time. Please obtain professional advice before changing a historical residency treatment or filing amended returns.