Most Canadians believe the United States stops taxing them the moment they cross back over the border. When it comes to US estate tax, that belief is dangerously wrong. A Canadian who has never lived a day in the US, never held a green card, and never filed a US income tax return can still owe the IRS up to 40% of the value of their Florida condo, their Apple and Microsoft shares, and the cash sitting in their US brokerage account — payable within nine months of death, before the assets can even be transferred to the heirs. The filing trip-wire is shockingly low: just $60,000 of US-situs property. This is the definitive 2026 guide to US estate and gift tax for Canadians and for US citizens living in Canada, built on the post-OBBBA $15,000,000 exemption, the Canada-US tax treaty's pro-rata credit under Article XXIX-B, and the situs traps that quietly catch snowbirds, dividend investors, and dual citizens every year.
Quick Answer: US Estate Tax for Canadians at a Glance (2026)
- Yes, Canadians can owe US estate tax — but only on US-situs assets (US real estate, shares of US corporations, US brokerage cash, tangible property in the US), not on their worldwide estate.
- The $60,000 trap: a Canadian estate must file IRS Form 706-NA if the deceased held US-situs assets worth more than $60,000 at death. That threshold is not inflation-indexed.
- The 2026 exemption is $15,000,000 per person ($30M per couple), made permanent by the One Big Beautiful Bill Act — up from $13,990,000 in 2025.
- The Canada-US treaty saves most people: Article XXIX-B gives Canadian residents a pro-rata share of the full US unified credit (up to $5,945,800 in 2026), so the average snowbird with a modest worldwide estate usually owes little or nothing — but the return must still be filed.
- Rates run 18% to 40%, with the top 40% rate hitting taxable amounts over $1,000,000.
- US citizens and dual citizens dying in Canada are a different animal entirely: they are taxed on their worldwide estate, get the full $15M exemption, and file Form 706 — not 706-NA.
This guide covers both directions. If you are a Canadian with US property or US stocks, start with the situs and $60K sections. If you are a US/dual citizen in Canada, jump to the worldwide-estate section.
Do Canadians Pay US Estate Tax? The Short Answer
Yes — and this surprises almost everyone. The United States imposes its estate tax on two completely different bases depending on who you are:
- US citizens and US domiciliaries (including green card holders who are domiciled in the US) are taxed on their worldwide estate — everything they own, everywhere on earth.
- Non-resident aliens (NRAs) — which describes the vast majority of Canadians who are not US citizens and are not domiciled in the US — are taxed only on their US-situs assets. Situs is a legal concept meaning "where the asset is located" for US tax purposes, and it follows its own quirky rules that have nothing to do with where the owner lives.
So a Canadian retiree in Toronto who owns a $900,000 vacation home in Naples, Florida, plus $400,000 of US blue-chip stocks in a discount-brokerage account, has roughly $1.3 million of US-situs assets exposed to US estate tax — even though Canada itself has no estate or inheritance tax at all. Canada taxes death differently (a deemed disposition of capital property, covered below), but the US estate tax is a separate, parallel system that runs on the gross value of the asset, not the gain.
The good news: the Canada-US tax treaty contains powerful relief (Article XXIX-B) that, for most middle-class and even many affluent Canadians, reduces the actual US estate tax to zero. The bad news: the relief is not automatic. You have to file a US estate tax return (Form 706-NA) and claim the treaty credit to get it. Skip the filing and the IRS position is that no credit applies — and the US brokerage or title company will refuse to release the assets without an IRS clearance certificate anyway.
US-Situs Assets: What Triggers US Estate Tax (and What Doesn't)
For a Canadian non-resident alien, everything turns on situs. Some assets are unambiguously US-situs and land squarely in the US gross estate; others are specifically carved out by statute. The most expensive mistakes happen in the gray zone — especially with US stocks held inside Canadian accounts.
| Asset | US-Situs? | In NRA Gross Estate? |
|---|
| US real estate (condo, house, land, US rental property) | Yes | Included |
| Shares of US corporations (Apple, Microsoft, US ETFs domiciled in the US) | Yes — regardless of where held | Included |
| US stock held inside a Canadian RRSP, RRIF, or TFSA | Yes — the registered wrapper does not change situs | Included |
| Cash in a US brokerage (margin/cash) account | Yes | Included |
| Tangible personal property physically located in the US (car, art, jewellery, boat at a US marina) | Yes | Included |
| Proceeds of life insurance on the deceased's own life | No (NRA exclusion) | Excluded |
| US bank deposits not connected to a US trade or business | No (statutory carve-out) | Excluded |
| US Treasury / US government bonds (portfolio interest debt) | No | Excluded |
| Certain portfolio-debt obligations | No | Excluded |
| Shares of a non-US corporation (Canadian ETF, even if it holds US stocks) | No | Excluded |
Source: IRS Instructions for Form 706-NA; IRS FAQ on estate taxes for non-residents.
The single most counterintuitive line in that table is the third one. US stock is US-situs even when it sits inside a "Canadian" registered account. A Canadian who holds $300,000 of US equities inside an RRSP has $300,000 of US-situs property for estate-tax purposes. The CRA-registered status of the account is irrelevant to the IRS. This single trap catches more Canadians than any other, because nearly every diversified Canadian portfolio holds US equities, and almost no one realizes the RRSP wrapper offers zero protection here.
A practical escape hatch: holding US-market exposure through a Canadian-domiciled ETF or mutual fund (a Canadian corporation or trust) converts the situs to Canadian, removing it from the US gross estate — though that choice carries its own US PFIC consequences for any US citizens in the family. See our cross-border real estate tax guide for the income-side companion to this death-side analysis.
The $60,000 Trap: When a Canadian Estate Must File Form 706-NA
Here is the rule that catches estates off-guard. A non-resident alien's estate must file Form 706-NA ("United States Estate (and Generation-Skipping Transfer) Tax Return, Estate of nonresident not a citizen of the United States") if the deceased's US-situs assets had a fair market value greater than $60,000 on the date of death.
Three things make this threshold treacherous:
- It is gross, not net. The $60,000 is measured against the fair market value of US-situs property, before any mortgage, treaty credit, or deduction. A condo worth $400,000 with a $350,000 mortgage still blows through the threshold on its $400,000 gross value.
- It is not inflation-indexed. The $60,000 figure has been frozen for decades and is not adjusted upward each year, unlike the $15M citizen exemption. It will not rise.
- Filing is required even when no tax is owed. Because the treaty credit must be claimed on the return, most estates that cross the $60,000 line file a 706-NA showing $0 tax due after the treaty credit. The filing obligation and the tax liability are two separate questions. Many estates owe nothing but must still file.
Why file if you owe nothing? Because the US custodian or title company will not release the assets without an IRS transfer certificate (Form 5173), and the IRS will not issue that certificate until the 706-NA is filed and processed. In practice, the filing is what unlocks the inheritance. Executors who try to skip it find the brokerage account frozen and the Florida title un-transferable.
Watch out
The $60,000 filing threshold and the multi-million-dollar exemption are not the same number. You can be below the exemption (owe no tax) and still be above the filing threshold (must file). Crossing $60,000 of US-situs assets is the line that creates paperwork; the treaty credit is what usually makes the tax bill zero.
The 2026 Numbers: $15M Exemption, $5.95M Unified Credit, 18%-40% Rates
The estate tax does not work off a flat "exemption" the way income deductions do. Instead, the IRS gives every taxpayer a unified credit — a dollar amount of tax that is wiped out before any cash is due. The credit is calibrated to exempt a corresponding amount of estate value, called the basic exclusion amount. For 2026:
| Item | 2025 | 2026 | Indexed? |
|---|
| Basic exclusion amount (citizen/domiciliary exemption) | $13,990,000 | $15,000,000 | Yes (now permanent base under OBBBA) |
| Maximum unified credit (tax-equivalent of the exclusion) | $5,541,800 | $5,945,800 | Yes |
| NRA Form 706-NA filing threshold (US-situs FMV) | $60,000 | $60,000 | No (frozen) |
| Top estate tax rate | 40% | 40% | No |
| Gift tax annual exclusion (per recipient) | $19,000 | $19,000 | Yes (unchanged for 2026) |
| Annual exclusion for gifts to non-US-citizen spouse | $190,000 | $194,000 | Yes |
Sources: IRS 2026 inflation adjustments newsroom release; IRS Rev. Proc. 2025-32; IRS Estate Tax filing-threshold table; OBBBA (P.L. 119-21) amending IRC 2010(c)(3).
What changed under OBBBA. Before the One Big Beautiful Bill Act, the exemption was scheduled to be roughly cut in half at the end of 2025 when the 2017 Tax Cuts and Jobs Act sunset. OBBBA cancelled that sunset and reset the base exclusion to $15,000,000 for 2026, indexed for inflation thereafter, and made it permanent. This matters enormously for the situs analysis below: the larger the citizen exemption, the larger the pro-rata slice a Canadian can claim under the treaty. Many competitor articles still quote the old 2025 $13.99M figure — the correct 2026 number is $15M, with a unified credit of $5,945,800.
The rate schedule is graduated from 18% on the first dollars of taxable estate up to 40% on amounts over $1,000,000. Because the brackets climb fast, almost any taxable estate that survives the credits lands at or near the 40% marginal rate.
How the Canada-US Treaty Saves You: Article XXIX-B Pro-Rata Unified Credit
Left to the bare US Internal Revenue Code, a Canadian non-resident alien would get a unified credit of just $13,000 — enough to shelter only about $60,000 of US-situs assets. That is the real reason the filing threshold sits at $60,000. Without treaty relief, a Canadian's Florida condo would be taxed almost from the first dollar.
The Canada-US tax treaty rescues Canadian residents through Article XXIX-B(2). Instead of the meagre $13,000 statutory credit, a Canadian resident gets a pro-rata share of the full US unified credit — the same $5,945,800 (2026) credit a US citizen enjoys — scaled by the proportion of the worldwide estate that is US-situs:
Pro-Rata Unified Credit = $5,945,800 × ( US-Situs Gross Estate ÷ Worldwide Gross Estate )
In plain English: if your US assets are only 10% of your total worldwide net worth, you get 10% of the $5,945,800 credit — about $594,580 of tax wiped out, which on the rate schedule shelters far more US-situs value than most Canadians will ever own there. The richer your non-US estate, the larger the denominator and the smaller the fraction — which is the "denominator trap" we cover below. But for the typical snowbird, the pro-rata credit reduces the US estate tax to zero.
To claim Article XXIX-B(2), the executor files Form 706-NA, completes the situs schedules, and attaches the treaty disclosure (Form 8833 is generally used to disclose the treaty-based return position). The credit is never granted automatically — it is a treaty election that lives or dies on the filing.
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Not sure whether your Florida condo or US stock portfolio triggers a Form 706-NA — or how much treaty credit you actually get? We will map your US-situs assets against your worldwide estate, run the pro-rata credit math, and tell you in plain numbers whether your family faces a US estate tax bill. No sales pitch, no insurance products, just the arithmetic.
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The Marital Credit: How a Surviving Spouse Can Effectively Double the Credit
There is a second, separate treaty credit that married Canadians frequently overlook. Article XXIX-B(3) provides a marital credit — an additional credit, stacked on top of the pro-rata unified credit, for property passing to a surviving spouse.
The marital credit equals the lesser of (a) the pro-rata unified credit otherwise available, and (b) the US estate tax that would otherwise be imposed on the property passing to the surviving spouse. In effect, where the entire US-situs estate passes to the spouse, the marital credit can roughly double the total available credit — because you get the pro-rata unified credit plus a matching marital credit of up to the same amount.
Why does this matter so much? US citizens get an unlimited marital deduction for property left to a citizen spouse. But a Canadian-resident, non-US-citizen surviving spouse generally does not qualify for that unlimited marital deduction (the property would otherwise have to flow through a special "QDOT" trust to defer the tax). The treaty marital credit is Canada's substitute: instead of an unlimited deduction, the surviving spouse gets a second dollar-for-dollar credit. The practical result for a married couple is that a US-situs estate well into seven figures often passes to the surviving spouse with no US estate tax — but only if the marital credit is claimed on the 706-NA. Like everything in this treaty, it must be elected, and a written waiver of the QDOT-style benefit is generally required as part of the election.
The $1.2 Million Small-Estate Treaty Exemption (Article XXIX-B(8))
For genuinely modest worldwide estates, the treaty offers an even simpler escape. Under Article XXIX-B(8), if the worldwide gross estate of a Canadian-resident, non-US-citizen decedent does not exceed US$1.2 million, the United States may tax only the US-situs gains that would be taxable under Treaty Article XIII — principally US real property.
In practical terms, a Canadian whose entire worldwide estate is under US$1.2 million escapes US estate tax on US stocks entirely (those are not Article XIII property), and is exposed only on the gain in any US real estate — not its full gross value. For a Canadian who, say, holds $200,000 of US dividend stocks and a worldwide estate of $900,000, the small-estate rule means the US stocks generate no US estate tax at all, and there is no US real estate to worry about. This is a hugely valuable carve-out for middle-class snowbirds and DIY investors, and it is another reason the 706-NA must still be filed: the relief is claimed on the return.
US Citizens & Dual Citizens Dying in Canada: Worldwide Estate, Form 706, and the Foreign Tax Credit
Everything above applies to Canadians who are not US citizens. If you are a US citizen or a dual citizen living in Canada, the analysis flips entirely. You are taxed by the US on your worldwide estate — your Canadian home, your RRSP, your CPP-funded pension value, your Canadian business, everything — just as if you had never left the US.
The trade-off is that you also get the full $15,000,000 exemption (2026), not a pro-rata slice, and you file Form 706 — not 706-NA. For the large majority of US citizens in Canada whose worldwide estate is well under $15M, no US estate tax is due, though a return may still be required if the gross estate exceeds the filing threshold.
The genuine risk for dual citizens is not the US estate tax itself — it is the interaction with Canada's deemed disposition at death. Canada has no estate tax, but it treats death as a deemed sale of all capital property at fair market value, triggering capital-gains tax on the final (terminal) return. A wealthy dual citizen can therefore face both Canadian deemed-disposition tax and US estate tax on the same assets. The treaty mitigates this double tax: Article XXIX-B(6) and (7) provide credit mechanisms so that, broadly, US estate tax can be credited against Canadian tax on the same property and vice versa, and a deduction or foreign tax credit is allowed to prevent the same value being fully taxed twice. Coordinating the two systems — which return claims which credit, and in what order — is where cross-border estate planning earns its keep.
If you are a dual citizen weighing whether to keep US citizenship at all, this estate exposure is one more entry on the ledger. Read our US exit tax and Form 8854 guide for what renunciation costs — including the separate 40% transfer tax that can follow gifts to US-resident heirs after a covered expatriate gives up citizenship.
US Gift Tax for Canadians: Why You Can Gift US Stock but Not a Florida Condo
Estate tax has a living-person cousin: the US gift tax. For non-resident aliens, the situs rules for gift tax are different from the estate tax rules — and the difference creates one of the cleanest planning opportunities in the whole cross-border toolkit.
US gift tax for a non-resident alien applies only to gifts of US-situs real property and tangible personal property located in the US. Critically, gifts of US-situs intangibles — including shares of US corporations — are not subject to US gift tax. Yet those same US shares are subject to US estate tax at death. This asymmetry is the planner's friend:
| Transfer | US Gift Tax (lifetime)? | US Estate Tax (at death)? |
|---|
| Give Apple/Microsoft shares to your children today | No — intangible, not US-situs for gift tax | Yes, if still owned at death |
| Give your Florida vacation condo to your children today | Yes — US real property | Yes, if still owned at death |
| Give US cash from a US brokerage account | Generally no (intangible) — fact-specific | Yes, if still owned at death |
| Give tangible US property (art hanging in a US home) | Yes — tangible, in the US | Yes, if still owned at death |
Source: IRS "Gift tax for nonresidents not citizens of the United States."
The takeaway: a Canadian can gift down a US stock portfolio during life with no US gift tax, permanently removing it from the US gross estate — but gifting a Florida condo to the kids triggers US gift tax on the real property and is rarely the right move. (And note the Canadian side: gifting appreciated property triggers a deemed disposition for Canadian capital-gains purposes, so the gift is not free of all tax — just free of US gift tax.)
Two gift-tax numbers matter for 2026: the annual exclusion of $19,000 per recipient (unchanged), and the special $194,000 annual exclusion for gifts to a non-US-citizen spouse (up from $190,000). The latter exists because a non-US-citizen spouse does not get the unlimited marital exclusion that applies between citizen spouses.
The Life Insurance & "Denominator" Trap That Quietly Shrinks Your Credit
Life insurance is genuinely tax-favoured for Canadians on the US estate-tax front — with one subtle catch. The proceeds of life insurance on the deceased's own life are not US-situs, so they are excluded from a non-resident alien's US gross estate. A Canadian's life-insurance payout does not, by itself, attract US estate tax. So far so good.
The catch is the denominator. Recall the pro-rata credit formula: US-situs estate divided by worldwide estate. A large Canadian life-insurance policy still counts in the worldwide gross estate — it inflates the denominator. A bigger denominator means a smaller fraction, which means a smaller pro-rata unified credit applied against your US assets. So a substantial Canadian life-insurance policy can quietly shrink the treaty credit available to shelter your Florida condo and US stocks, even though the policy itself is never taxed by the US.
This is exactly why insurance-affiliated articles that pitch "just buy more life insurance" oversimplify. Life insurance is one tool, but it is not free of cross-border consequences, and it interacts with the credit math in a way that can work against you. The same denominator logic applies to a strong Canadian net worth generally: a valuable Canadian home, a large RRSP, and a well-funded pension all enlarge the worldwide estate and dilute the pro-rata credit available against your US-situs assets — even when your US holdings are modest.
Worked Example: A Canadian Snowbird With a $900K Florida Home and US Stocks
Numbers make this concrete. Meet Margaret, a 74-year-old Canadian citizen and resident of Ontario, never a US citizen or green card holder. At her death in 2026 she owns:
- Naples, Florida vacation home: US$900,000 (US-situs)
- US blue-chip stocks (Apple, Microsoft, S&P 500 US-listed ETF) in a Canadian discount brokerage: US$400,000 (US-situs — the Canadian account does not change situs)
- US-situs total: US$1,300,000
- Ontario home, RRSP, GICs, Canadian stocks, CPP-funded pension value: US$3,700,000 (non-US-situs)
- Worldwide gross estate: US$5,000,000
Step 1 — Filing required? US-situs assets ($1.3M) exceed $60,000, so the estate must file Form 706-NA. No way around it — Florida title and the US brokerage need the transfer certificate.
Step 2 — Tentative US estate tax on the US-situs estate. Running $1,300,000 through the graduated 18%-40% schedule produces a tentative tax of roughly $465,800 before any credit. (The schedule reaches 40% on amounts over $1,000,000; the cumulative tax on the first $1,000,000 is $345,800, plus 40% of the remaining $300,000 = $120,000, for $465,800.)
Step 3 — Pro-rata unified credit under Article XXIX-B(2).
Pro-rata credit = $5,945,800 × ( $1,300,000 ÷ $5,000,000 )
= $5,945,800 × 0.26
= $1,545,908
The available pro-rata credit ($1,545,908) is far larger than the tentative tax ($465,800). The credit more than covers the entire tax.
Result: Margaret's estate owes US$0 in US estate tax — but only because the 706-NA was filed and the treaty credit was claimed. Had her executor assumed "she's Canadian, no US return needed," the IRS position would be a tax bill of roughly $465,800 (minus only the $13,000 statutory credit), and the Florida home and brokerage account would have stayed frozen until it was sorted out.
Now change one fact. Suppose Margaret had been far wealthier — a worldwide estate of US$30,000,000 with the same $1.3M of US assets. The denominator balloons, and the fraction collapses to 1,300,000 / 30,000,000 ≈ 0.0433. Her pro-rata credit becomes only $5,945,800 × (1,300,000 ÷ 30,000,000) ≈ $257,651 — now less than the $465,800 tentative tax. Her estate would owe roughly $208,000 of US estate tax (before any marital credit). That is the denominator trap in action: the wealthier the worldwide estate, the more the same US assets cost at death — which is precisely when proactive planning (mortgaging the US property, holding through structures, or gifting US stock during life) pays for itself.
Canada Has No Estate Tax — But Death Still Triggers Tax (Deemed Disposition)
A common source of confusion: Canada does not levy an estate tax or inheritance tax. There is no Canadian "death tax" on the value of what you leave behind. But Canada is far from tax-free at death. The CRA treats death as a deemed disposition — you are deemed to have sold all your capital property at fair market value immediately before death, triggering capital-gains tax on the accrued gain, reported on the deceased's final (terminal) T1 return.
| Feature | US Estate Tax | Canadian Deemed Disposition |
|---|
| What is taxed | Gross value of (US-situs) assets transferred | Accrued capital gain on assets |
| Who pays | The estate, before distribution | The deceased's final T1 return |
| Rate | 18%-40% on value | Capital gains taxed at applicable inclusion rate / marginal rate |
| Exemption / relief | $15M (citizens); pro-rata treaty credit (Canadians) | Spousal rollover; principal-residence exemption |
| Form | 706 or 706-NA | Final T1 |
The two systems are structurally different: the US taxes value transferred; Canada taxes gain realized. A dual citizen can face both.
Layered on top of all this is the provincial probate / estate administration tax. Ontario, for example, charges estate administration tax of roughly 1.5% on the value of assets passing through probate — including US-situs assets that must be probated. So a Florida condo can attract US estate tax (on value), Canadian deemed-disposition tax (on gain), and Ontario probate fees (on value through the estate) — three different levies touching one asset. The treaty's credit mechanisms (Article XXIX-B(6)-(7)) relieve the US-vs-Canada income/estate double tax, but they do not erase provincial probate fees.
Snowbirds: Escaping Income-Tax Residency Does Not Escape Estate Tax
If you spend winters in Florida or Arizona, you have probably heard of the closer-connection statement (Form 8840) that snowbirds file to avoid being treated as a US income-tax resident under the substantial-presence test. That filing is important — see our snowbird tax guide for the full residency mechanics — but it is critical to understand its limit.
Avoiding US income-tax residency via Form 8840 does nothing to remove your Florida vacation home (or your US stocks) from the US estate tax. Estate-tax exposure for a non-resident alien turns on situs of the asset, not on days of presence or income-tax residency. You can be a model snowbird who files Form 8840 every year, never becomes a US tax resident, never owes a dollar of US income tax — and your estate can still face a Form 706-NA filing and treaty-credit analysis because you own US real estate. The two regimes (income vs transfer) are entirely separate. This is the single most common blind spot among well-advised snowbirds.
Planning Strategies: Trusts, Mortgages, Partnerships, Gifting & Insurance
Because the treaty credit usually neutralizes the tax for modest worldwide estates, many Canadians need no special structuring at all — they simply need to file. But for larger estates, or those concentrated in US real estate, the following tools genuinely move the needle. None is one-size-fits-all, and each carries Canadian-side and US-income-side consequences that must be modelled together.
- Non-recourse mortgage on US real property. A non-recourse mortgage on a US property reduces the US-situs value included in the gross estate dollar-for-dollar (a recourse mortgage only reduces it proportionally). Borrowing against the Florida condo is one of the cleanest ways to shrink US estate exposure on real estate.
- Gift US stock during life. As covered above, gifting shares of US corporations carries no US gift tax for a non-resident alien, and permanently removes those shares from the US gross estate. Watch the Canadian deemed-disposition consequence on the gift.
- Hold US-market exposure through a Canadian-domiciled fund. Owning a Canadian ETF or mutual fund (a Canadian corporation/trust) that holds US equities converts the situs to Canadian and removes it from the US gross estate — but creates PFIC exposure for any US citizens in the family.
- Canadian (or cross-border) trust structures. Holding US real estate through a properly designed trust or partnership can move the situs and limit estate exposure, though US "look-through" rules, FIRPTA on sale, and Canadian attribution rules make this an advisor-only strategy — a botched structure can be worse than the disease.
- Partnership / LLP ownership of US real estate. Some structures convert directly held US real property (US-situs) into a partnership interest, which can change the situs analysis — highly fact-specific and must be vetted on both sides of the border.
- Life insurance to fund the tax. Rather than restructure ownership, some families simply buy life insurance to provide the cash to pay any US estate tax at death. Remember the denominator caveat: the policy itself inflates the worldwide estate and can shrink the pro-rata credit.
- The $1.2M small-estate election. For genuinely modest worldwide estates, the treaty's Article XXIX-B(8) relief may eliminate exposure on US stocks entirely with no structuring at all.
Filing Mechanics: Form 706-NA, Transfer Certificates, Deadlines & Extensions
Here is what the executor of a Canadian estate with US-situs assets actually does, in order:
- Inventory and value US-situs assets at the date-of-death fair market value, converted to US dollars. Cross $60,000 and a return is required.
- File Form 706-NA within nine months of the date of death. If more time is needed, file Form 4768 for an automatic 6-month extension of the filing deadline (note: an extension to file is not an extension to pay — estimated tax should be paid with the 4768 to avoid interest).
- Claim the treaty credits — the pro-rata unified credit under XXIX-B(2), the marital credit under XXIX-B(3) where applicable, and the small-estate relief under XXIX-B(8) — attaching the treaty-based return-position disclosure.
- Obtain the IRS transfer certificate (Form 5173). US brokerages and title/escrow companies generally will not release US-situs assets to the estate or heirs until the IRS issues this clearance certificate confirming the estate tax matter is resolved. This is the step that actually unlocks the inheritance, and IRS processing can take many months — build it into the timeline.
- Coordinate with the Canadian terminal T1 return so that any US estate tax paid is properly credited against Canadian tax under the treaty, avoiding double tax on the same property.
Pro Tip
The nine-month clock and the transfer-certificate bottleneck together mean US-situs assets are routinely frozen for a year or more after death if no one acts promptly. Start the 706-NA process early — the certificate, not the tax, is usually the long pole in the tent. See exactly what a cross-border estate-tax filing engagement costs in our transparent cross-border pricing.
When to Hire a Cross-Border Estate Tax Advisor
Most Canadians with US assets do not need elaborate structures — they need someone who actually files the 706-NA correctly and claims the treaty credits so the family is not left with frozen accounts and a phantom tax bill. You should get professional cross-border help if any of these apply:
- You own US real estate (a vacation home, US rental, or US land) of any meaningful value.
- You hold US stocks or US-domiciled ETFs — in any account, including an RRSP, RRIF, or TFSA — that together with other US assets exceed $60,000.
- You are a US citizen or dual citizen in Canada with a worldwide estate that could approach the $15M exemption, or who faces the deemed-disposition / estate-tax interaction.
- You are an executor and have discovered the deceased held US-situs assets and a 9-month clock is already running.
- You are a wealthy Canadian where the denominator math turns the pro-rata credit unfavourable and structuring is warranted.
Zenith Financial Advisors is a US-side cross-border tax firm: we prepare and file Form 706-NA, claim the Article XXIX-B treaty credits, secure the IRS transfer certificate, and coordinate with your Canadian advisors on the terminal return — so US-situs assets actually reach the heirs without a six-figure surprise. For the income-side companions to this death-side guide, see our cross-border real estate tax guide and our RRSP vs 401(k) cross-border guide.
Frequently Asked Questions
