While Canada doesn’t have a dedicated estate tax, Canadians with U.S. assets still face exposure to U.S. estate tax. Here’s what every Canadian with U.S. property needs to know about cross-border estate planning, along with actionable strategies to help protect generational wealth.
Do Canadians Have to Pay U.S. Estate Tax?
Technically yes. In practice, mostly not.
The U.S. imposes a federal estate tax on the transfer of wealth at death. For U.S. citizens and residents, this tax applies to their entire worldwide estate, while Canadians are taxed only on U.S. situs assets.
The default estate tax exemption for non-resident aliens is only USD $60,000. On paper, this means that Canadians with qualifying U.S. assets above that threshold are subject to federal estate tax at graduated rates, which start at 18% and climb to a flat 40% for taxable estates valued at USD $1 million and over.
In practice, however, tax treaties and credits eliminate or significantly reduce U.S. estate tax exposure for all but the wealthiest Canadians. Though Canadians with U.S. situs assets may still have U.S. filing obligations.
What Counts as a U.S. Situs Asset?
Effective cross-border tax planning requires a precise inventory of all U.S. situs assets. The term “situs” refers to the legal location of the property for tax purposes. The list is broader than most Canadians expect. U.S. situs assets subject to estate tax include:
🔹 U.S. real estate (vacation homes, condos, rental properties)
🔹 Shares in U.S. corporations – even if held inside a Canadian RRSP, RRIF, or TFSA
🔹 U.S. brokerage accounts
🔹 Tangible personal property physically located in the U.S. (vehicles, artwork, boats)
🔹 Interests in U.S. partnerships and certain U.S. funds
🔹 Shares in a private U.S. corporation
Tax-free savings accounts are one area that surprises many of our clients. Holding Apple or Microsoft stock inside your TFSA does not shield those shares from U.S. estate tax. The registered account wrapper is invisible to the IRS. What matters is where the issuing corporation is domiciled, not where the account is held. This works both ways, as shares in Canadian mutual funds or Canadian-domiciled ETFs that happen to invest in U.S. markets are generally not considered U.S. situs assets.
U.S. Estate Tax Relief For Canadians
The primary tax shield protecting Canadians from U.S. estate tax is Article XXIX-B of the Canada-U.S. Income Tax Convention (the Treaty). Without the Treaty, Canadians would face U.S. estate tax on any U.S. situs assets above $60,000, a crippling exposure for even modest estates.
Fortunately, the U.S. has a lifetime estate and gift tax exemption, which is extended to Canadians. As of January 1, 2026, the unified credit exempts the first USD $15 million from U.S. estate tax, a $1.01 million increase over 2025 following the passage of the One Big Beautiful Bill Act (indexed to inflation annually thereafter).
This means that only Canadians with U.S. situs assets above $60,000 and a worldwide estate valued at over USD $15 million are subject to U.S. estate tax. While this excludes the majority of Canadian taxpayers from U.S. estate tax exposure, estates holding more than $60,000 in U.S. situs assets will still need to file a U.S. estate tax return.
The Prorated Unified Credit For U.S. Estate Tax
Canadian resident estates that exceed the USD $15 million worldwide exemption threshold can claim a pro-rated share of the U.S. unified credit. The keyword here is pro-rated. Canadians do not receive the full unified credit. They receive a proportionate share based on how much of their worldwide estate consists of U.S. situs assets. The formula is:
Pro-rated Unified Credit = Full Unified Credit × (U.S. Situs Assets ÷ Worldwide Estate)
Example – A Canadian dies in 2026 with a worldwide estate of USD $18 million. A Montana property valued at USD $2 million is the only U.S. asset. The credit would be calculated as follows:
$15,000,000 x ($2,000,000 / $18,000,000) = $1,666,666
In this simplified example, the pro-rated unified credit would be roughly USD $1.67 million. That credit would completely offset the estate tax on the $2 million property, resulting in no U.S. estate tax owing.
But if you change the scenario and bump U.S. assets to $8 million against the same $18 million worldwide estate, the math shifts considerably. Now the pro-rated credit covers less, and real liability can emerge. The takeaway here is that while the Treaty exemption is highly effective for Canadians whose U.S. assets represent a small fraction of their total wealth, as that fraction grows, so does the exposure.
The Marital Credit For U.S. Estate Tax
For married Canadians, the Treaty provides an additional layer of relief in the form of a marital credit. When U.S. situs assets pass to a surviving spouse who is a Canadian or U.S. resident, the estate can claim an additional non-refundable marital credit equal to the lesser of:
- The pro-rated unified credit
- The estate tax otherwise owing
In practical terms, the credit can effectively double the pro-rated unified credit. However, this does not eliminate the tax permanently. It defers it. The surviving spouse may still face U.S. estate tax on those inherited U.S. assets when they eventually pass, which must be accounted for during planning.
It should be noted that the marital credit is not the same as the marital deduction, which also effectively doubles the unified credit, but is only available to U.S. citizens. Canadians can only access the marital deduction by transferring U.S. situs assets to a Qualified Domestic Trust (QDOT), but the marital deduction cannot be used alongside the marital credit. QDOT planning is complex and requires coordination between a Canadian tax advisor and a U.S. estate attorney.
Foreign Tax Credits For U.S. Estate Tax
Estate tax paid on U.S. situs property can be claimed as a foreign tax credit on the deceased’s final Canadian income tax return. This credit offsets the Canadian income tax liability arising from the deemed disposition of those same assets at death, effectively preventing the same economic gain from being taxed twice across both countries.
U.S. Estate Tax Filing Requirements For Canadians
Even if a Canadian resident owes no U.S. estate tax, the estate is legally required to file a U.S. Estate Tax Return for Nonresident Aliens (Form 706-NA) if the value of their U.S. situs assets exceeds $60,000 USD at the time of death.
The deadline is nine months from the date of death, with an optional six-month extension available. If Form 706-NA is not filed, the estate loses access to any applicable credits, and beneficiaries inherit the U.S. assets with a zero cost basis in the eyes of the IRS, resulting in higher future tax.
U.S. Estate Tax Planning Strategies For High Net Worth Canadians
1️⃣ Hold U.S. Real Estate Through a Canadian Corporation
One of the most effective structural solutions for U.S. real estate is ownership through a Canadian corporation. The IRS does not pierce the corporate veil to tax the Canadian shareholder, so a vacation property held by a Canadian company avoids being counted as a U.S. situs asset in the shareholder’s estate.
It should be noted that personal-use real estate held in a corporation can create a shareholder benefit issue under Canadian tax rules unless the individual pays FMV rent to the corporation. This structure is best established before acquiring the property; transferring existing U.S. real estate into a corporation after purchase triggers U.S. gift tax considerations and isn’t always feasible.
2️⃣ Use Canadian-Domiciled Investment Funds for U.S. Market Exposure
For investment portfolios, Canadians who want exposure to U.S. equities without direct estate tax risk can invest through Canadian-domiciled mutual funds or ETFs that hold U.S. securities internally. Because the Canadian fund, not the investor, holds the U.S. shares, there is no direct U.S. situs asset in the individual’s estate.
3️⃣ Non-Recourse Mortgage to Reduce Taxable U.S. Property Value
If U.S. real estate is already owned personally, a non-recourse mortgage, secured solely against that specific property and not against any other assets, reduces the net value of the U.S. property for estate tax purposes. This can shrink the taxable estate on that asset dollar-for-dollar up to the mortgage balance.
Commercial lenders typically cap non-recourse mortgages at 50-60% of property value, limiting this strategy’s scope. But in the right circumstances, it can meaningfully reduce exposure without restructuring ownership.
4️⃣ Life Insurance as an Estate Tax Funding Tool
In situations where liquidating assets is undesirable or corporate restructuring is too costly, purchasing a life insurance policy can be effective. A life insurance policy issued on the deceased’s life is not a U.S. situs asset, even if issued by a U.S. insurer, provided the deceased did not own the policy.
The death benefit provides immediate, tax-free liquidity to the estate. This allows the executors to pay the U.S. estate tax liability without being forced into a fire sale of U.S. real estate or securities. Ownership should be structured in a trust or transferred to another individual to prevent the death benefit from inflating the worldwide estate and eroding the pro-rated unified credit.
Final Thoughts
U.S. estate tax planning cannot wait until death. Once the estate is in motion, the options narrow considerably. Effective cross-border estate planning strategies require considerable foresight and advanced implementation.
Our cross-border tax experts work with Canadian clients to proactively assess U.S. estate tax exposure, optimize ownership and planning structures, and implement strategies that minimize overall tax liability. Reach out to schedule a cross-border estate planning review.
This article was written by NVS Professional Corporation, your knowledgeable Barrie, Markham and Burlington accountants. The content is intended as a general guide for informational purposes only. For specialist advice tailored to your specific situation, please reach out to our expert team.
