Canadian selling US property — where do I start?

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Answer

A pre-closing certificate application can reduce the withholding to something close to the real tax. Almost every one of these files is decided by a date and a document, so the sequence is the work.

Where to start

A pre-closing certificate application can reduce the withholding to something close to the real tax. Afterwards, the money is already with the IRS and comes back through the return cycle, while the Canadian return reports the same sale on a different cost base with a foreign tax credit.

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The exception worth knowing

On a US property sale by a foreign seller, the buyer withholds from the proceeds and remits it. The withholding is computed on the price; the tax is computed on the gain.

Canadian selling US property — where do I start?
ItemAmount
Gross amount receivedC$53,000
Withheld at source (assumed 19% of gross)C$10,070
Deductible costsC$31,800
Net amount actually earnedC$21,200
Tax on the net amount (assumed graduated result)C$5,724
Difference recoverable by filingC$4,346

Filing on a net basis recovers C$4,346 of the C$10,070 withheld. That difference is the entire reason the elective return exists, and it is lost by not filing.

Example figures throughout, selected to make the rule visible, with rates and thresholds assumed for the demonstration. Your actual filing uses figures confirmed with the issuing authority for your tax year.

How to get this moving

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on Canadian selling US property — capital gains on the sale (FIRPTA). One call is usually enough to know whether this is a filing or a project.

Read and approved for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. This is general information rather than advice about your file — a short call is the way to get the second.

US international tax — what this page covers

If you came here for US international tax, this is where it is dealt with. The subject is Canadian selling US property, and the page covers who it reaches, what then has to be filed, and what we charge to do the work.

Files that look like this one

Case study 1

Certificate applied for before a Florida condominium sale closed

The sellers, resident in Ontario, had a signed contract on a condominium they had owned for years and a closing date already fixed. We assembled the purchase and sale documents, established the cost including the improvements they could evidence, and applied for a reduced withholding certificate before completion. The closing agent held the funds pending the determination and released the balance once it arrived. The engagement produced a withholding set against the expected gain rather than the price, and a file already built for the US and Canadian returns that followed.

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Case study 2

Withholding recovered through the return after the sale had closed

The seller came to us after completion, with the buyer's remittance already made and no certificate application on file. The work was a reconstruction rather than a negotiation: the purchase statement, the record of a kitchen and a roof replacement, and the agent's closing figures. We filed the US return for the year of sale so that the gain, not the price, drove the tax, and claimed the excess back. The engagement produced a refund claim supported by documents and a matching Canadian filing position for the same sale.

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Case study 3

Two spouses on title and two separate withholding positions

Title was held jointly, which made the sale two dispositions for US purposes, each with its own share of the proceeds, its own cost and its own filing. One spouse had an identification number from an earlier rental year; the other had none. We applied for the missing number first, then made a single certificate application covering both interests with the split stated explicitly. The engagement produced consistent returns for both spouses and a withholding determination that matched how the title was actually held.

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Case study 4

A sale at a loss where the full withholding still applied

The property had been bought near the top of a local market and sold for less than it cost. Nothing was owing on the gain, yet the buyer was still obliged to withhold on the price. We evidenced the original cost and the selling expenses and applied before closing on the basis that no tax would arise on the disposition. The engagement produced a determination that released the proceeds at completion instead of leaving the seller waiting a filing season to recover money that was never tax in the first place.

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Case study 5

Coordinating the foreign tax credit when the refund arrives later

The Canadian return for the year of sale fell due while the US refund claim was still outstanding, so the credit could not simply be the amount withheld. We computed the Canadian gain on converted figures, claimed the credit on the US tax we expected to be assessed rather than the sum held back, and documented the basis for it. When the US assessment arrived we compared it against the claim and adjusted the Canadian year. The engagement produced two returns that tell the same story about one sale.

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Case study 6

Unfiled rental years brought current before the sale was reported

The house had been let for several years without a US return, and the sale brought the whole history into view. Filing the disposition alone would have presented a gain with depreciation and rental income nowhere accounted for. We prepared the outstanding rental years first, established the cost as adjusted by what had been claimed, and only then dealt with the sale and the withholding. The engagement produced a complete filing history and a cost base the seller could defend on examination.

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Case study 7

A Canadian Landlord With Property in the United States

Gross withholding on US rents takes no account of mortgage interest, tax or repairs, so a leveraged property can face tax on turnover. An election onto net basis fixes that, and it has its own timing and its own filing.

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Case study 8

A Retirement Plan That Grows Tax-Deferred in Only One Country

Cross-border retirement accounts are recognised by treaty, but the deferral usually has to be elected rather than assumed. The engagement checks whether the election was made, makes it where it was missed, and reports the account on whichever side requires it.

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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.

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

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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.

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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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Canadian selling US property — capital gains on the sale (FIRPTA): further questions

How do I stop the buyer withholding on my US home sale?

You cannot switch the withholding off, but you can ask for it to be reduced before the sale completes. The buyer's duty is to withhold from the price and remit it, and the price takes no account of what you paid for the property or what it costs you to sell it. A certificate application made before closing puts the expected gain and the expected tax in front of the IRS, so the amount held back can be brought close to the real liability. The application has to be in before the deal closes. Once the funds have gone, the route changes from reduction to refund.

I have already closed — can I get the withholding back?

Yes, through the return cycle rather than at closing. Once the buyer has remitted, the money sits with the IRS as a credit against a liability that has not yet been calculated. You file the US return for the year of sale, the gain is computed on proceeds less your cost and your selling costs, and the difference between the tax and the amount withheld comes back to you. It is slower than a pre-closing certificate and it ties up funds you may have earmarked for something else, but nothing is lost for good by having missed the earlier step.

Why is the withholding more than the tax I actually owe?

Because the two are measured against different things. The withholding is computed on the sale price; the tax is charged on the gain. A property that has risen modestly, or one sold at a loss, still produces a full withholding on the whole price, which is why sellers so often have more held back than they will ever owe. The mismatch is structural rather than a mistake by the buyer or the closing agent, who are doing what the rules require of them. The remedy is either the pre-closing certificate, if there is still time, or the return afterwards.

Do I also report the US property sale in Canada?

Yes. The same sale goes on your Canadian return for the year, and the two calculations will not match. Canada measures the gain in Canadian dollars, so your cost is converted at the rate when you bought and the proceeds at the rate when you sold, and the currency movement between those dates forms part of the measured gain. US tax on the sale is then claimed as a foreign tax credit against the Canadian tax on that income. Because the credit follows the tax finally assessed rather than the sum withheld, a later US refund can require the Canadian claim to be revisited.

How early should I apply before closing on the sale?

As soon as the sale is under contract and the figures are known, and preferably before the closing date is fixed. The application needs the contract, evidence of what you paid, the costs of sale, and a taxpayer identification number for each seller — and it is usually the identification number that sets the pace, because it cannot be obtained quickly. Applying late does not spoil the sale; it means the closing agent holds or remits the funds and you fall back on the return. Ring +1 (416) 619-0068 once you have a signed contract rather than once you have a completion statement.

What records do I need to prove my cost on a US property?

The closing statement from when you bought, invoices for anything capital you added, and the statement from the sale. Improvements matter twice over: they raise the cost against which the gain is measured, and they are the part sellers most often cannot evidence years later. If the property was ever let, the depreciation claimed on it also has to be brought into the calculation, which is a further reason to have the US rental years filed properly before the sale is reported. Keep your Canadian dollar records too, since the Canadian gain is computed on converted figures rather than the US ones.

Do I pay US tax on an inheritance from abroad?

A bequest is not income, so the receipt itself is not taxed. Reporting is a different matter: a US person who receives large gifts or bequests from a foreign person or estate files an information return for the year, and inheriting a foreign account or an interest in a foreign trust brings the account and asset reports with it. The penalties here attach to the information return, not to tax — which is why people who owed nothing still get letters. See Form 3520.

What is FIRPTA withholding?

FIRPTA is the US regime that treats a foreign person's disposition of a US real property interest as taxable and makes the buyer withhold on the gross proceeds to secure it. Because the deduction is on the price rather than the profit, it routinely exceeds the real tax — sometimes on a sale made at a loss. A withholding certificate applied for before closing can reduce it to something closer to the actual liability. See the FIRPTA withholding certificate.

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