Canada's Departure Tax, Explained: The Deemed Sale, Form T1161, and Form T1243

Every country wants a last word with people leaving its tax system. Canada's last word is blunt: the deemed disposition on emigration — informally, the departure tax. The day your Canadian residency ends, the CRA treats you as having sold and instantly repurchased most of your capital property at fair market value. The paper gains become real taxable gains on your final Canadian return, even though you sold nothing and received no cash.

For a mover with a normal investment account, that's a real bill. For one with a decade of gains or private-company shares, it can be the largest single number in the entire relocation.

What's deemed sold — and what escapes

The deemed disposition covers most capital property, most importantly non-registered investment portfolios (stocks, ETFs, funds held outside registered accounts), shares of private corporations, and most foreign property you own. The main exemptions — property the rules leave alone — include:

• Canadian real estate (it stays in Canada's tax net regardless, and gets its own treatment when actually sold — see the Section 116 process);
• RRSPs, RRIFs, and most registered accounts (they keep their deferral; the treaty handles them on the U.S. side);
• Canadian business property of a permanent establishment, and certain other narrow categories;
• and property you owned when you last became a Canadian resident, if your stay was short (a relief aimed at temporary residents).

Everything else crosses the border with its gains crystallized.

The two forms

• Form T1243 — Deemed Disposition of Property by an Emigrant. This is the calculation: each deemed-sold property, its cost, its fair market value on the departure date, and the resulting gain or loss flowing to your final return.
• Form T1161 — List of Properties by an Emigrant. This is the inventory: required with your departure-year return if the total value of your reportable property exceeds $25,000, regardless of whether any tax is due. It's an information form with real teeth — the late-filing penalty runs $25 a day to a maximum of $2,500, and it's charged even when the tax owing is zero. It is the most commonly missed piece of the entire departure package.

You can defer the payment — with security

Recognizing that taxing unsold assets creates a cash problem, the rules let you elect to defer paying the departure tax until the property is actually sold, by posting acceptable security with the CRA (Form T1244). For modest amounts the CRA generally doesn't require security at all below a threshold; for large bills, the security negotiation is its own project. The deferral doesn't reduce the tax — it parks it, interest-free, until a real sale happens. For owners of private-company shares with no liquidity, this election is frequently the difference between a manageable exit and a forced sale.

The date is the strategy

Because the deemed sale happens on your departure date, and values what you hold on that date, the planning levers are all about sequencing:

• Realize losses before departure to absorb gains the deemed sale will trigger.
• Consider crystallizing certain gains deliberately in a low-income year before the move.
• Mind the U.S. side of the same assets: the U.S. generally inherits your original cost basis, not the departure-date value — meaning the same pre-move gain Canada just taxed can be exposed again in the U.S. when you actually sell. A treaty-based election exists to align the two; whether and how to use it is precisely the kind of question to resolve in the departure year, not at the eventual sale.
• Set the departure date by facts, then paper it consistently — the date on your final return should match when your residential ties actually severed, and everything downstream (the T1161 inventory, the T1243 values, the U.S. dual-status split) keys off it.

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Related reading: - I Moved From Canada to the U.S. — How Do I File My Taxes? - U.S. Taxes for Canadians, by Visa Type: The Complete Guide Hub