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Cross-Border Tax Guide · Foreign Companies in Canada · Licensed CPA

Branch vs Subsidiary in Canada: Which Structure Costs You Less Tax

A foreign company entering Canada must choose between registering a branch and incorporating a Canadian subsidiary. The choice drives branch tax, dividend withholding, whether early losses are usable, liability, and your filing burden. This guide explains the tax mechanics of each so you can decide before you set up, not after. Written by a licensed Canadian CPA who works with non-resident and cross-border businesses.

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Both a branch and a Canadian subsidiary pay Canadian corporate tax on Canadian business profits at the same rate. The difference is how profit leaves Canada. A branch pays an extra 25% branch tax on after-tax profit not reinvested in Canada, reduced by treaty. A subsidiary pays 25% withholding tax on dividends to the foreign parent, also reduced by treaty. A branch usually wins when early losses are expected and can offset foreign income; a subsidiary usually wins for profits and liability separation.

The Two Ways a Foreign Company Operates in Canada

When a foreign corporation decides to do business in Canada, it takes one of two forms. It can register the existing foreign company to carry on business here directly, which is a branch, or it can incorporate a new Canadian company that it owns, which is a subsidiary. Both are taxed by Canada, but through different mechanisms, and the right choice depends on whether you expect early losses or profits, how you plan to move money home, and how much you value keeping Canadian liability separate.

This is a decision to make before you set up, because unwinding the wrong structure later is expensive. For the full picture please see our foreign corporation carrying on business in Canada guide.

Branch vs Subsidiary: The Core Comparison

This table is the heart of the decision. Both pay the same Canadian corporate tax on Canadian profits; everything else differs.

FeatureBranchSubsidiary
What it isThe foreign company registered to operate in CanadaA separate Canadian corporation you own
Canadian corporate taxPart I tax on Canadian profits, same ratesPart I tax on its income, same rates
Extra tax to repatriate25% branch tax on profit not reinvested in Canada25% withholding on dividends to the parent
Treaty reliefBranch tax often reduced to 5% (Canada-US)Dividend withholding often reduced to 5% (Canada-US)
Early lossesMay offset the parent's foreign income, subject to home rulesTrapped in the subsidiary until it earns profit
LiabilityThe foreign company is directly exposedCanadian liability is generally contained in the subsidiary

Same corporate tax, different exit tax. A branch and a subsidiary both pay Canadian corporate tax on Canadian-source profit at the ordinary rate, roughly 26.5% combined in Ontario at the general rate. What separates them is the second layer of tax that applies when profit leaves Canada, and that is where the structure decision is really made.

Branch Tax: The 25% Second Layer

A branch pays Canadian corporate tax on its Canadian profits like any corporation. On top of that, Part XIV of the Income Tax Act imposes a branch tax of 25% on the branch's after-tax profits that are not reinvested in the Canadian business. It exists to replicate the withholding tax that would have applied had a subsidiary paid those profits home as a dividend, so that a branch is not automatically more tax-efficient than a subsidiary.

Branch Tax PointDetail
Rate25% under domestic law on after-tax profit not reinvested in Canada
Treaty reductionOften cut to the treaty dividend rate, 5% under the Canada-US treaty
US treaty exemptionFirst CAD $500,000 of branch profits exempt, on a lifetime basis
Reinvested profitProfit kept working in the Canadian business reduces the branch tax
Levied underPart XIV of the Income Tax Act

Reinvesting in Canada defers the branch tax. Because branch tax only applies to profit not reinvested in the Canadian business, a branch that keeps its earnings working in Canada can reduce or defer it. That, plus the treaty exemption on the first CAD $500,000 of branch profits under the US treaty, makes a branch more workable than the headline 25% suggests.

Subsidiary: Dividend Withholding Instead

A Canadian subsidiary is a Canadian resident corporation. It pays Canadian corporate tax on its income and, because it is Canadian, it pays no branch tax. The second layer arrives when it sends profit to the foreign parent as a dividend, at which point Canada imposes a 25% withholding tax, again reduced by treaty.

Subsidiary PointDetail
ResidencyA Canadian resident corporation, taxed on its income
Branch taxNone; it is a Canadian company
Dividend withholding25% on dividends to the foreign parent under domestic law
Treaty reduction5% under the Canada-US treaty for a wholly-owned parent
Return of capitalPaid-up capital can often be returned without withholding, within the rules

For the tax filings a foreign-owned Canadian company must handle, please see our Canadian corporate tax for foreign companies guide.

The Loss Question That Often Decides It

For many foreign companies the deciding factor is not the exit tax at all, but what happens to early losses. A new Canadian operation frequently loses money in its first year or two, and the two structures treat those losses very differently.

  1. Branch losses can travel. Because a branch is part of the foreign company, its Canadian losses may be usable against the parent's worldwide income, subject to the tax rules of the parent's home country.
  2. Subsidiary losses stay put. A subsidiary is a separate Canadian company, so its losses are trapped inside it and can only be used once the subsidiary itself earns Canadian profit.
  3. This often flips the structure. A company expecting early losses may start as a branch to use them, then convert to a subsidiary once it turns profitable, if the numbers and the home-country rules support it.

The loss benefit depends on the home country, not just Canada. Whether a Canadian branch loss actually reduces the parent's tax at home is governed by the parent jurisdiction's rules, not Canada's. This is exactly the kind of cross-border point that needs to be checked on both sides before committing, because assuming the loss is usable when it is not can drive the wrong decision.

Thin Capitalization: Financing the Canadian Business

Foreign parents often fund their Canadian operation partly with intercompany loans, because interest is deductible while dividends are not. Canada limits this with the thin capitalization rules, so the financing structure has to be planned, not assumed.

RuleHow It Works
Who it applies toDebt owed to a non-resident who owns 25% or more of the Canadian company
The limitInterest deductible only up to a 1.5-to-1 debt-to-equity ratio
Excess interestInterest on debt above the ratio is denied as a deduction
RecharacterizationThe denied interest is treated as a dividend, subject to withholding tax
Anti-avoidanceBack-to-back loan rules stop routing the loan through a third party

Over-leveraging the Canadian company backfires twice. Push too much intercompany debt in and the excess interest is both non-deductible and recharacterized as a dividend that attracts withholding tax, so you lose the deduction and pick up a tax. On top of thin capitalization, the EIFEL rules separately cap net interest and financing expense at 30% of tax-EBITDA. The debt-to-equity mix must be set deliberately at the outset.

Regulation 105 and Withholding on Services

One trap catches foreign companies before they have even chosen a structure. Where a non-resident is paid for services performed in Canada, the Canadian payer must withhold 15% of the payment under Regulation 105, as an instalment against the non-resident's potential Canadian tax. It is not a final tax, and it can be recovered by filing a Canadian return, but it affects cash flow and is missed constantly. A waiver can reduce it where a treaty applies.

The Filing Trap: You File Even If the Treaty Exempts You

Foreign companies routinely assume that if a tax treaty protects them from Canadian tax, they have nothing to file in Canada. That is wrong, and the penalty is real.

A treaty exemption does not remove the filing obligation. A non-resident carrying on business in Canada but exempt under a treaty because it has no permanent establishment must still file a Canadian treaty-based information return, a T2 with Schedule 91. Management is frequently unaware of this, and the penalty is CAD $2,500 per year plus interest, which compounds quickly across several unfiled years. Filing is not optional just because no tax is owing.

Which Structure Should You Choose?

There is no single answer; it depends on your profit expectation, your financing, and how much you value liability separation. The pattern below is the usual starting point, then refined for your specific facts and home country.

Your SituationUsually Points To
Expecting early losses you can use at homeBranch
Expecting profits from the startSubsidiary
Want Canadian liability containedSubsidiary
Want the simplest possible entry, no new companyBranch
Planning to reinvest profits in Canada long termEither; model both
Plan to sell the Canadian business laterSubsidiary, cleaner to sell shares

To set up whichever structure fits, please see our incorporation services.

Case Study: US Company Entering Canada

A US corporation planned to open a Canadian operation and assumed it should incorporate a subsidiary because that is what its lawyer set up by default. On review, the Canadian operation was expected to lose money for its first two years while it built a customer base, and under the parent's home rules those losses could offset US income if incurred through a branch, but would be trapped if incurred in a subsidiary. We modelled both structures, started the operation as a Canadian branch so the early losses were usable at home, applied the Canada-US treaty so branch tax would be capped at 5% and the first CAD $500,000 of branch profits would be exempt, set the intercompany financing inside the thin capitalization limit, and filed the treaty-based information returns that would otherwise have drawn $2,500 annual penalties. Once the operation turned profitable, we planned the conversion to a subsidiary for liability separation and a cleaner eventual sale. The figures here are illustrative of the work we do, not a specific client file.

Early losses used at home. Branch tax capped by treaty. Penalties avoided. Conversion planned.

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Frequently Asked Questions: Branch vs Subsidiary in Canada

What is the difference between a branch and a subsidiary in Canada?
A branch is your existing foreign company registered to carry on business in Canada directly, so Canadian operations are part of the parent. A subsidiary is a separate Canadian corporation that the foreign company owns. Both pay Canadian corporate tax on Canadian profits, but they differ in how profit is repatriated, how early losses are treated, and how liability is contained.
Do both a branch and a subsidiary pay Canadian corporate tax?
Yes. Both pay Canadian Part I corporate tax on Canadian-source business profits at the same rates, roughly 26.5% combined in Ontario at the general rate. The corporate tax on the Canadian profit is the same either way. The real difference is the second layer of tax that applies when profit leaves Canada.
What is branch tax in Canada?
Branch tax is a 25% tax under Part XIV of the Income Tax Act on a branch's after-tax Canadian profits that are not reinvested in the Canadian business. It exists to replicate the withholding tax that would apply if a subsidiary paid those profits to its parent as a dividend, so a branch is not automatically more tax-efficient than a subsidiary. Treaties usually reduce the rate.
How much is branch tax under the Canada-US treaty?
Under the Canada-US treaty the branch tax rate is generally reduced from 25% to 5%, matching the treaty dividend withholding rate. The treaty also exempts the first CAD $500,000 of the non-resident corporation's branch profits from branch tax on a lifetime basis, which makes a US company's branch materially cheaper than the headline rate suggests.
Does a subsidiary pay branch tax?
No. A subsidiary is a Canadian resident corporation, so it does not pay branch tax. Instead, when it pays a dividend to the foreign parent, Canada imposes a 25% withholding tax, reduced by treaty, commonly to 5% under the Canada-US treaty for a wholly-owned parent. The subsidiary must withhold and remit that tax on the dividend.
What is the withholding tax on dividends to a foreign parent?
Canada imposes 25% withholding tax on dividends paid by a Canadian subsidiary to its non-resident parent under domestic law. A tax treaty usually reduces it; under the Canada-US treaty it is 5% for a wholly-owned parent. The subsidiary is required to deduct the tax from the dividend and remit it to the CRA.
Which structure is better for a company expecting losses?
Usually a branch. Because a branch is part of the foreign company, its early Canadian losses may offset the parent's worldwide income, subject to the parent's home-country rules. A subsidiary's losses are trapped inside it until it earns Canadian profit. Many companies start as a branch to use early losses, then convert to a subsidiary once profitable.
Which structure is better for a profitable business?
Often a subsidiary, especially where liability separation and a future sale matter. A subsidiary contains Canadian liability and is cleaner to sell as shares later, while its dividend withholding can be managed under a treaty. But a branch that reinvests profit in Canada and uses the treaty exemption can also work well. Both should be modelled on your numbers.
Can a branch's Canadian losses reduce my foreign tax?
Possibly, but it depends on the parent's home country, not Canada. Because a branch is part of the foreign company, its Canadian losses may be usable against the parent's worldwide income, but only if the home jurisdiction's rules allow it. This must be confirmed on both sides before relying on it, since assuming it wrongly can drive the wrong structure choice.
What are the thin capitalization rules?
They limit how much interest a Canadian company can deduct on debt owed to a non-resident who owns 25% or more of it. Interest is deductible only up to a 1.5-to-1 debt-to-equity ratio; interest on debt above that is denied and treated as a dividend subject to withholding tax. The rules stop foreign parents from stripping profit out of Canada through excessive intercompany loans.
What is the thin capitalization debt-to-equity ratio?
1.5 to 1. A Canadian company can deduct interest on intercompany debt from a specified non-resident up to one and a half dollars of debt for every dollar of equity. Interest on any debt above that ratio is non-deductible and recharacterized as a dividend, which attracts withholding tax. So over-leveraging the Canadian entity is penalised twice.
What happens if I over-leverage the Canadian company?
Two things, both bad. The interest on the excess debt is denied as a deduction, and that same excess interest is recharacterized as a dividend and subjected to withholding tax. You lose the deduction you were seeking and pick up a tax you were trying to avoid. The debt-to-equity mix has to be set within the thin capitalization limit from the outset.
What are the EIFEL rules?
The excessive interest and financing expenses limitation rules cap a company's deductible net interest and financing expense at 30% of its tax-EBITDA, on top of the thin capitalization rules. They implement an OECD standard and apply to cross-border and domestic groups. For a foreign-owned Canadian company, both EIFEL and thin capitalization must be considered when planning intercompany financing.
What is Regulation 105 withholding?
Where a non-resident is paid for services performed in Canada, the Canadian payer must withhold 15% of the payment under Regulation 105. It is not a final tax; it is an instalment against the non-resident's potential Canadian tax and is recovered by filing a Canadian return. A treaty-based waiver can reduce or remove it, but it affects cash flow and is frequently missed.
Do I have to file in Canada if a treaty exempts me from tax?
Yes. A non-resident carrying on business in Canada but exempt under a treaty because it has no permanent establishment must still file a treaty-based information return, a T2 with Schedule 91. The exemption removes the tax, not the filing. The penalty for not filing is CAD $2,500 per year plus interest, which compounds across multiple unfiled years.
What is a treaty-based information return?
It is a Canadian return, a T2 with Schedule 91, filed by a non-resident that carries on business in Canada but claims exemption from Canadian tax under a treaty. It tells the CRA the company is relying on treaty protection. It is required even though no tax is owing, and failing to file it carries a $2,500 annual penalty that many foreign companies discover too late.
What is a permanent establishment and why does it matter?
A permanent establishment is a fixed place of business, or a dependent agent, through which a company operates in a treaty country. Under most treaties, Canada can only tax a non-resident's business profits if they are attributable to a permanent establishment in Canada. Whether you have one determines whether Canada taxes your profit or only requires a treaty-based information return.
Can I switch from a branch to a subsidiary later?
Yes, and it is a common plan. A company may start as a branch to use early losses, then convert to a subsidiary once it is profitable, for liability separation and a cleaner future sale. The conversion has its own tax consequences and needs to be structured, so it should be planned in advance rather than done reactively.
Which structure gives better liability protection?
A subsidiary. Because it is a separate Canadian corporation, Canadian liabilities are generally contained within it and do not reach the foreign parent directly. With a branch, the foreign company is carrying on business in Canada itself, so it is directly exposed to Canadian liabilities. Where liability separation matters, that alone can favour a subsidiary.
Is it easier to sell a branch or a subsidiary?
A subsidiary. Selling a subsidiary can be done cleanly by selling its shares, which buyers generally prefer and which can access certain tax efficiencies. A branch is not a separate entity, so there is no share to sell; the assets and operations would be sold instead, which is usually messier. If a future sale is likely, that favours a subsidiary.
How is a subsidiary's dividend withholding reduced?
Through a tax treaty. Domestic withholding on dividends to a foreign parent is 25%, but a treaty usually reduces it, commonly to 5% under the Canada-US treaty where the parent owns the subsidiary outright. Qualifying for the reduced rate requires the parent to be a treaty resident and to meet the treaty's conditions, which we confirm and document.
Can a subsidiary return capital to the parent without withholding?
Often yes. A Canadian subsidiary can generally return paid-up capital to its parent without Canadian withholding tax, even where it has undistributed earnings, provided the corporate and tax requirements for a return of capital are met. This is one tool for moving funds home efficiently, but it must be done correctly, since the rules are technical.
Do transfer pricing rules apply to a branch or subsidiary?
Yes, to both. Any cross-border transactions between the Canadian operation and the related foreign company, such as management fees, intercompany sales or financing, must be priced at arm's length and supported by documentation. Transfer pricing is a major CRA focus for foreign-owned operations, and weak documentation can lead to adjustments and penalties.
What corporate tax rate does the Canadian operation pay?
The ordinary Canadian rates. A branch or subsidiary pays Part I corporate tax on Canadian business profits at roughly 26.5% combined in Ontario at the general rate. A Canadian subsidiary that is a Canadian-controlled private corporation could access the small business rate, but a foreign-controlled subsidiary generally cannot, so the general rate usually applies.
Does a foreign company need to register for GST/HST in Canada?
Often yes. A branch or subsidiary carrying on business in Canada generally must register for GST/HST once it makes taxable supplies over the threshold, charge it, and file returns, while recovering input tax credits on its Canadian costs. Getting the registration and place-of-supply treatment right from the start avoids liabilities later. See our GST/HST filing.
What is the biggest mistake foreign companies make entering Canada?
Choosing the structure by default rather than by analysis, and assuming a treaty removes all Canadian obligations. Setting up a subsidiary when early losses could have been used through a branch, or skipping the treaty-based information return and drawing $2,500 annual penalties, are both common and both avoidable. The structure should be modelled before setup, on the actual numbers.
How much does cross-border structuring cost?
Branch-versus-subsidiary analysis and the ongoing Canadian filings are part of our cross-border work, from $150 per month, quoted as a flat fee upfront with no hourly billing. All fees include HST. Please use our pricing calculator for an exact figure.
How do I get started?
Please book a free consultation and tell us about your company, its home country, whether you expect early losses or profits, and how you plan to fund and eventually exit the Canadian operation. We model branch versus subsidiary on your numbers, apply the treaty, and handle every Canadian filing. Book Free Consultation →

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