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The two countries tax death in completely different ways.
Canada taxes the gain. The United States taxes the estate. Neither credits the other automatically, and a family with assets or people on both sides can meet both charges on the same wealth unless the position is planned.
Two systems, two entirely different mechanisms
This is the single most important thing to understand about cross-border estates, and it is why domestic advice on either side tends to miss it.
How the United States taxes death
How Canada taxes death
Both charges can land on the same wealth, in the same week.
The treaty contains meaningful relief for exactly this overlap. It operates through positions taken on filings, which means it does nothing at all unless somebody claims it.
US real estate, and in some cases US shares, can pull a non resident estate into the US system.
The domestic exemption for a non-domiciled estate is a fraction of the citizen figure, though an eligible Canadian-resident estate may claim a prorated treaty unified credit based on US situs and worldwide values.
The Canadian spousal rollover moves the charge one generation, it does not cancel it.
A qualifying Canadian spousal rollover generally applies automatically unless the representative elects out. Treaty credits and other elections require specific filings.
What this means for a cross-border family
Three consequences, all of them planned around rather than argued about afterwards.
The charges can stack
A US citizen resident in Canada can face a Canadian deemed disposition on the gain and a US estate charge on the value, on the same assets, in the same week.
Where the asset sits changes everything
US situs property can pull a non-domiciled estate into the US system with a much lower threshold than most people expect. Estate tax residence uses domicile, which is not the same as the income tax residency test.
Nothing happens by itself
The treaty relief is real and substantial. Unclaimed, it is worth nothing.
Every other decision on this site can be revisited. This one cannot, which is why we would rather have the conversation ten years early than one year late.
Where cross-border estates go wrong
Three patterns, all common, all addressable while everyone is still alive.
A will drafted on one side only
A domestic will drafted by a competent local solicitor can create an outcome in the other country that nobody intended, including unintended residency for a trust or an executor who cannot act across the border.
US situs assets held without thought
A holiday property, a brokerage account or a shareholding can sit inside the US system regardless of where the owner lived, and the non resident threshold is dramatically lower than people expect.
Assuming the spousal rollover solves it
The Canadian rollover defers the charge, it does not remove it, and it interacts differently where the survivor is not resident or not a US person.
What we do on estate engagements
Usually alongside your lawyer rather than instead of them. We handle the tax analysis and the filings, they draft the instruments.
While planning
- Situs analysis of the whole estate
- Exposure modelling under both systems
- Treaty relief position mapping
- Gifting and lifetime transfer strategy
- Cross-border will review with your counsel
- Trust and holding structure review
On death
- Final and terminal returns
- Estate and trust returns both sides
- Executor and administrator support
- Clearance certificates and releases
- Valuation coordination
- Beneficiary reporting obligations
For beneficiaries
- Inheritance reporting requirements
- Receiving foreign gifts and bequests
- Cost base and step up analysis
- Ongoing reporting on inherited accounts
- Distributions from foreign estates
- Disclaimer and variation consequences
Inheriting across the border has its own reporting
Most of this page is written for the person planning an estate. If you are on the receiving end, the position is different and considerably less discussed.
Reporting depends on the beneficiary's own tax status and on the estate or trust involved, and the two countries work differently. An outright inheritance is generally not income to a Canadian-resident recipient, though retained foreign assets may create T1135 reporting. A US person who receives more than US$100,000 during the year from a foreign individual or foreign estate, including amounts required to be aggregated from related donors, may need Form 3520. A US estate is not automatically foreign for US tax purposes, and an ongoing foreign trust needs separate analysis. The cost base of what you received may also be treated differently by each system.
The penalties attached to those reporting forms apply whether or not any tax is due.
If you have inherited from someone on the other side of the border in the last few years, that is worth a short conversation regardless of how straightforward the estate seemed.
Questions about cross-border estates
This is general guidance rather than advice on your situation.
I am a US citizen living in Canada. Which system taxes my estate?
Potentially both. Canada will apply a deemed disposition to your capital property, and the US estate regime continues to apply to you as a citizen wherever you live. The treaty relieves the overlap, but it is claimed rather than granted.
Do I need a separate will in each country?
Sometimes, and sometimes a single well drafted will is better. It depends where the assets are, where the executors are, and how each jurisdiction treats the instrument. A question for your lawyer and us together.
Is there inheritance tax in Canada?
Not as a distinct tax. Canada achieves a similar result through the deemed disposition on death, taxing the accrued gain rather than the value transferred.
My parent in the US left me money. Do I report it?
It depends on your own tax status and on the estate. A US estate is not automatically foreign for US tax purposes, so a bequest from a US parent's US estate does not by itself trigger the Form 3520 foreign gift rules. Those rules apply where a US person receives more than US$100,000 during the year from a foreign individual or foreign estate, including amounts aggregated from related donors. If you are Canadian resident, the receipt is generally not income, though retained foreign assets may create T1135 reporting. Worth ten minutes to establish which set of rules you are in.
Related situations
Estate questions almost always sit alongside one of these.
Plan it while everyone can still be in the room.
Twenty minutes, no charge, and a written fixed quote afterwards.
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