Who files Form T1243?

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Answer

Emigrants with capital property that is deemed sold on the day residency ends. The obligation is decided by facts rather than by tax owing, which is why a nil position does not remove it.

The rule on who files

Emigrants with capital property that is deemed sold on the day residency ends.

Two of the firm’s advisers at a desk in the Delhi office

The exception worth knowing

Nothing is actually sold, and tax is still due. Which assets are inside the deemed disposition and which keep their Canadian tax hooks instead is the whole planning question, and valuation of anything private is the part that gets challenged.

Who files Form T1243?
ItemAmount
Current account, highest balanceUS$6,000
Savings account, highest balanceUS$7,000
Account held with a relative, signature authority onlyUS$4,000
Aggregate tested against the thresholdUS$17,000
Reporting threshold (verified, FinCEN)US$10,000

The aggregate of US$17,000 exceeds the US$10,000 threshold, so all three accounts are reported — including the one that is not the filer's money, because signature authority counts.

Illustrative figures, not a client engagement: the amounts are chosen to make the mechanism legible, and the rates and thresholds are assumptions stated for the example only. We confirm every one of them against the issuing authority for your own tax year before anything is filed.

How to get this moving

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on T1243 — deemed disposition. One call is usually enough to know whether this is a filing or a project.

Reviewed for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. Published as general information. For a position on your own file, call the 24-hour helpline.

Who has to file US tax return, in practice

Read this page for who has to file US tax return. It works through Form T1243 from the beginning — whether it applies to you at all, what has to be filed if it does, and what the engagement costs, priced up front.

Cross-border tax case studies

Case study 1

Valuing a founder's private shares as at the departure day

A founder emigrated while still holding a controlling interest in the operating company. Nothing was sold, and the departure computation nonetheless produced the largest figure in the filing. The work was mostly evidence: statements to the departure date, the basis on which the business would be valued, and the history of any transactions in the shares. The engagement produced a computation supported by a dated valuation file, so the position could be defended from material assembled at the time rather than reconstructed later under examination.

Read how this one runs
Case study 2

Sorting a mixed portfolio into two tax treatments

The client held listed securities through separate brokers, an interest in a family holding company and property that retained its Canadian tax hooks. The engagement went asset by asset from the ownership documents, establishing which holdings were inside the deemed disposition on departure and which would instead be taxed on an actual disposition later. The classification changed what fell into the departure year and what would be dealt with afterwards. What was produced was the computation, a schedule of classifications and the reason recorded against each one.

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Case study 3

A contested residency date that decided the computation

The client's move happened in stages, with a lease, a family return and a change of employer spread across months. Because the deemed disposition is taken on the day residency ends, the date had to be settled before any figure could be produced. We built the residency position from the ties themselves and set it out in writing, then measured every holding as at that day. The engagement produced a documented cessation date and a computation consistent with it, rather than two positions that would have contradicted each other on the same return.

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Case study 4

A departure position that produced losses rather than gains

The client expected a bill and asked whether the computation could simply be skipped. Working it through showed a mixed position across the holdings, and the overall result was not the gain that had been assumed. The computation was prepared and filed regardless, with the valuation material kept alongside it. The engagement produced the filed calculation and a record of how each holding had been valued on the departure day, which was the point of doing it: the figures were established while the evidence for them was still current.

Read how this one runs
Case study 5

An inherited holding nobody had valued in decades

An emigrant held an interest in land received under a will many years before leaving Canada, with no recent valuation and a cost history assembled from estate papers. The departure computation needed both ends: the historical cost position and the value on the day residency ended. The work ran through the probate file, old assessments and a current appraisal instructed for the departure date. The engagement produced a computation with both figures evidenced, and a note on the assumptions buried in the older records.

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Case study 6

Co-owned assets split between two departing owners

Siblings emigrated in the same year holding assets jointly, and each assumed the other's adviser was dealing with the whole. Each person computes on their own interest, so the engagement began by establishing those interests from the title and contribution records, then produced a computation for each individual on the same departure-day values. What the work produced was consistent filings and a shared valuation file, which removed the risk of one asset being measured two different ways on two returns.

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Case study 7

The Deemed Sale That Happens on Death

Canada treats most capital property as sold at fair market value on death, so a terminal return can carry tax on gains nobody realised. Valuations and the order of the returns are what decide the figure.

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Case study 8

A Canadian Property Sale Held Up for a Clearance Certificate

When a non-resident sells Canadian real estate the purchaser must hold back a portion of the price until the seller produces a certificate. The file applies for it on the correct basis and works to the closing date, because the holdback is released against the certificate, not against the sale.

Read how this one runs

All case studies — every published engagement in one place.

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Dual filers: U.S. citizens in Canada and Canadians with U.S. income run two parallel systems — we prepare both, in the right order, every year.

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The move year is its own project: the elections and valuations filed that year decide the next decade of both countries’ returns.

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Default withholding is 25% of gross: elective returns routinely turn over-withheld rent and pensions into refunds.

Transfer Pricing & BEPS

Documentation prepared with the return is the cheapest insurance in international tax; reconstructing it during an audit is the most expensive.

Cross-Border Estates & Trusts

Wills drafted for one country routinely misfire in the other — deemed disposition here, estate tax there, credits in between.

Cross-Border Corporate Tax

Expansion raises the same four questions every time — entity, PE, repatriation, payroll. We answer them before the tax authorities do.

India Tax for NRIs & Returning Residents

The deduction is taken on the sale price, not the gain — which is why an NRI property sale strands cash unless the certificate is applied for before closing.

Canadian Tax with a Foreign Element

Residency is decided on facts, not on a form — and the year you arrive or leave is the one where the largest amounts turn on the smallest details.

UAE Tax for Expats & Their Home Country

A zero-tax country is only half the answer — the question that decides the bill is whether the country you came from still treats you as resident.

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Global E-commerce & Marketplaces

Cross-border tax for sellers shipping worldwide: marketplace withholding, foreign registrations and inventory nexus handled before they become audits.

Marketplaces withhold, remit and report in their own right, so the tax position of a single sale is decided by where the stock sat, where the buyer was and which platform collected — not by where the company is registered. We reconcile the platform's own filings against the returns before either is submitted.

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Investment Funds & Holding Companies

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Also asked about Form T1243

Do I file Form T1243 if I sold nothing before leaving?

That is exactly when it is filed. On the day Canadian residency ends, capital property is treated as sold and reacquired, so a tax liability arises with no sale, no buyer and no cash. The computation of that deemed disposition is what the form sets out. The two consequences people are unprepared for are that tax can be due on assets they still hold and never intended to sell, and that the figures rest on values at the departure day rather than on anything a market has confirmed. Both are reasons to prepare the computation deliberately, with the valuation evidence assembled while it still exists.

Who has to work out departure tax after emigrating from Canada?

An individual who ceased to be a Canadian resident and held capital property on the day that happened. It is not limited to the wealthy or to people with businesses: a portfolio, an interest in a private company or a holding inherited years earlier can all bring the computation into play. The obligation sits with the emigrant personally, in the departure-year return, and it is decided by the facts of residency rather than by citizenship or by which country now taxes your salary. Where a couple leaves together, each person computes their own position on their own interests in the property.

Do private company shares need a valuation on departure?

If they are inside the deemed disposition, their value on the departure day has to be established, and a number written down without support is the part of a departure filing most likely to be challenged. Nothing has been sold, so there is no price to point to; the value has to be built from the company's own position at that date. That means financial statements, the basis on which the business would be valued, and any contemporaneous transactions in the shares. Assembling that evidence at the time is far easier than producing it years later under examination, and it is the difference between a defensible figure and an assertion.

Is every asset I own caught by the deemed disposition?

No, and working out which side of the line each holding falls on is the substance of the job. Some property is inside the deemed disposition and taxed on departure. Other property keeps its Canadian tax hooks instead, meaning Canada continues to have a claim and the tax arises on an actual disposition later rather than on the day you leave. The two treatments lead to very different outcomes for cash flow and for later filings, so we go asset by asset from the ownership documents rather than applying a general rule, and we record the reason for each classification.

Do I file Form T1243 if the deemed sale shows a loss?

The computation is still made. A deemed disposition can produce losses as well as gains, and the position across your holdings has to be worked out before you know which you have. Leaving the computation out because you expect no tax has two costs. You lose the chance to establish the figures while the evidence for them is current, and you leave the departure year without the record that later Canadian questions about those same assets are answered from. Prepare it, file it, and keep the valuation material with it, whichever way the arithmetic comes out.

Does leaving partway through the year change the departure tax date?

The calculation is taken on the day Canadian residency ends, not at the end of the calendar year, and that date is determined by where your ties actually were rather than by a travel document. It drives everything that follows: which property is treated as sold, and the value each holding is measured at. A date settled casually for one purpose and differently for another produces a filing that argues with itself. We establish the residency cessation date on the facts first, in writing, and then build the computation as at that day.

Would a state exit tax even be constitutional?

A levy imposed purely for leaving would face serious challenge under the constitutional protections for interstate commerce and the right to travel, which is part of why proposals stall. But that is not what most states are doing. Taxing income that was earned or sourced within the state before you left is conventional, long upheld, and where almost all real disputes sit — which is why the useful question is sourcing and domicile, not constitutionality. See state non-resident returns.

What is the US exit tax?

A charge that applies when a US citizen renounces or a long-term permanent resident gives up their status and meets one of the covered-expatriate tests — an income test, a net-worth test, or a failure to certify five years of compliance. A covered expatriate is treated as having sold worldwide assets on the day before expatriation, and Form 8854 is what reports the position. The tests turn on figures that are indexed, so they are read for the year of expatriation. See Form 8854.

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