Most foreign corporations think about Canadian taxes in one of two ways. Either they assume they owe nothing because they don’t have an office here, or they assume the only thing that matters is whether they need to file a T2. Both of those framings miss the full picture.
Canadian tax law creates a layered set of obligations for non-resident corporations that go well beyond corporate income tax. Depending on what your corporation does in Canada, who it pays, what income it earns, and how it’s structured, you could be dealing with Part I tax, Part XIII withholding, branch tax, payroll obligations, Regulation 105 withholding, GST/HST registration, and provincial filings, and sometimes all at once.
This guide covers the full landscape. If you’re just starting to explore what your Canadian obligations might look like, you may also want to read our introductory piece, Do Foreign Companies Need to File Taxes in Canada?.
How Canada Taxes Non-Resident Corporations
Canada’s Income Tax Act divides non-resident income into two distinct categories, each with its own tax treatment and compliance mechanics.
Part I Tax
It applies to income from an active business carried on in Canada. This is the corporate income tax most people think of. It is calculated on net profits and filed via the T2 return. The federal general corporate rate is 15%, with provincial rates layered on top depending on where the business activity occurs.
For non-resident corporations, Part I tax generally only applies when the corporation has a permanent establishment in Canada, though the filing obligation can arise even without one.
Part XIII Tax
It applies to passive Canadian-source income paid to non-residents, such as dividends, interest, rents, royalties, management fees, and similar amounts. This tax is withheld at source by the Canadian payer at a rate of 25%, though most of Canada’s tax treaties reduce this rate significantly, often to 5%, 10%, or 15%, depending on the income type and treaty provisions.
Because Part XIII tax is withheld at source, the non-resident corporation typically has no filing obligation for passive income alone, provided the correct amount has been withheld.
Permanent Establishment
The concept of permanent establishment is central to how Canada taxes non-resident corporations. Under most of Canada’s tax treaties, a foreign corporation’s active business income in Canada is only subject to Part I tax if the corporation carries on that business through a permanent establishment in Canada.
A permanent establishment generally includes a fixed place of business, an office, a factory, a branch, a warehouse, or any other facility through which business is conducted. But the definition goes further than most foreign corporations expect. A permanent establishment is a fixed place of business through which the business is wholly or partly carried on. For example, if you rent an office or a factory, or have other permanent space available to you, you probably have a permanent establishment.
Beyond fixed locations, a dependent agent, someone in Canada who regularly concludes contracts on behalf of the foreign corporation, can also constitute a permanent establishment. Even a construction site or installation project that lasts beyond a certain period (typically 12 months under most treaties) can qualify.
The practical implication: a non-resident corporation with no physical office in Canada is not automatically free from permanent establishment risk. The nature of the business activity, the duration of the Canadian presence, and the role of any Canadian agents or employees all matter. Getting this wrong, in either direction, is expensive.
Active Business Income and What Triggers Part I Tax
When a non-resident corporation carries on an active business in Canada, it is subject to Part I tax on the net income from that Canadian business, regardless of whether a treaty provides a permanent establishment threshold.
A non-resident corporation must file a T2 return with the CRA if the corporation carried on business in Canada or disposed of a taxable Canadian property at any time in the tax year. The CRA’s interpretation of “carrying on business in Canada” is deliberately broad; it encompasses providing services physically performed on Canadian soil, selling goods to Canadian buyers through Canadian agents, maintaining inventory in Canada, and a range of other activities that create a meaningful Canadian nexus.
The filing obligation and the tax obligation are not the same thing. A non-resident corporation can be required to file a T2 return even if it owes no Canadian tax. For example, because a tax treaty exempts its income from Part I tax. In that case, it still needs to file and formally claim the exemption. The mechanics of that process are covered in detail in our companion post on T2 Filing Requirements for Non-Resident Corporations.
Passive Income and Part XIII Withholding Tax
When a non-resident corporation receives passive income from a Canadian source, the obligation typically falls on the Canadian payer rather than the non-resident recipient. The payer is required to withhold Part XIII tax at the applicable rate, 25% under domestic law, or a reduced rate under an applicable tax treaty, and remit it directly to the CRA.
Common types of passive Canadian-source income subject to Part XIII tax include dividends paid by a Canadian corporation, interest paid on Canadian debt obligations, rental income from Canadian real property, royalties for the use of property in Canada, and management or administration fees paid to a non-resident.
If the Part XIII tax has been correctly withheld and remitted, the non-resident corporation generally has no further Canadian filing obligation on that income. However, if the withholding was excessive, for example, because the payer applied the domestic rate instead of a lower treaty rate, the non-resident can file a T2 or NR7-R form to seek a refund of the overpayment. The deadline for requesting such a refund is two years after the end of the calendar year in which the amount was paid.
Branch Tax
Non-resident corporations operating a Canadian branch face an additional layer of taxation that many foreign businesses don’t anticipate: the branch tax under Part XIV of the Income Tax Act.
Branch tax is designed to approximate the withholding tax that would apply if a Canadian subsidiary were paying dividends to its foreign parent. It applies to after-tax Canadian branch profits that are not reinvested in Canada, at a rate of 25%, though this is frequently reduced by applicable tax treaties, often to rates between 5% and 15%.
Schedule 20 (Part XIV, Additional Tax on Non-Resident Corporations) must be completed and attached to the T2 return for corporations subject to branch tax. Proper planning, including documenting the reinvestment of branch profits in Canadian assets, can significantly reduce branch tax exposure. This is an area where the difference between a structured approach and an unadvised one can be substantial.
For many foreign corporations, the branch vs. subsidiary decision is one of the most consequential early choices in their Canadian market entry. Each structure carries different tax implications, and the right answer depends on your industry, your home jurisdiction’s treaty relationship with Canada, your repatriation plans, and your long-term intentions in the Canadian market.
Payroll and Regulation 105 Obligations
Two withholding obligations frequently catch non-resident corporations off guard — and both can generate compliance obligations that are entirely separate from the corporate income tax framework.
Payroll withholding (Regulation 102)
When a non-resident corporation sends employees to work in Canada, it is generally required to withhold Canadian payroll taxes from the first dollar paid to those employees for services performed in Canada. This applies regardless of the length of the assignment.
Exemptions are available through treaty-based waivers or the Non-Resident Employer Certification program (Form RC473), but the default rule requires withholding from day one. Failure to comply can result in retroactive remittances, interest, and penalties, and the CRA’s approach to non-compliance in this area is increasingly assertive.
Regulation 105 withholding
When a non-resident person or corporation provides services in Canada, the Canadian customer is required to withhold 15% of every payment and remit it to the CRA. This is not a final tax but a payment on account of whatever Canadian income tax the non-resident ultimately owes.
Provided that the income tax return is filed within the statutory time frame, the amount withheld is either applied to Canadian taxes that are owed when the non-resident files a Canadian income tax return for taxable Canadian activities or is refunded if the non-resident can claim an exemption from Canadian tax due to an income tax treaty.
A waiver application (Form R105) can be submitted to the CRA to reduce or eliminate the withholding in advance, but it must be filed at least 30 days before services commence. Note also that Quebec imposes an additional 9% withholding tax on similar payments if the services are rendered in the province of Quebec.
GST/HST
GST/HST obligations are independent of corporate income tax and must be assessed separately. A non-resident corporation making taxable supplies in Canada, such as goods, services, or real property, may be required to register for and collect GST/HST, even without a physical presence in Canada, in some circumstances.
Generally, if you do not have a permanent establishment in Canada, or if you make supplies in Canada only through another person’s fixed place of business, and you apply to be registered for the GST/HST, you have to provide the CRA with a security deposit.
The general registration threshold is $30,000 in annual taxable supplies. Once exceeded, registration and collection are mandatory. Digital economy businesses face additional rules that came into effect on July 1, 2021, which may create GST/HST obligations for non-resident businesses selling digital products or services to Canadian consumers even without any physical Canadian presence.
Voluntary registration is also worth considering, even below the threshold. If a non-resident corporation has Canadian business expenses, such as materials, subcontractors, and operating costs, it may be eligible to claim input tax credits for GST paid on those expenses. GST is recoverable in those circumstances, not an additional cost.
Provincial Tax Obligations
The T2 return covers federal corporate income tax and integrates most provincial taxes — but not all. Corporations with a permanent establishment in Quebec or Alberta must file a separate provincial return.
Quebec and Alberta each administer their own corporate income tax systems independently of the CRA, which means non-resident corporations with operations or a permanent establishment in either province face separate provincial filing obligations in addition to the federal T2.
Provincial sales taxes add another layer. British Columbia, Saskatchewan, and Manitoba each maintain their own provincial sales tax systems, separate from the federal GST/HST framework, with their own registration and compliance requirements for businesses making sales into those provinces.
Non-resident corporations with cross-provincial operations need to think through their compliance obligations at both levels, federal and provincial, before assuming that a single T2 filing satisfies everything they owe.
Disposing of Taxable Canadian Property
When a non-resident corporation sells or otherwise disposes of taxable Canadian property, including real estate, shares of a Canadian private company, or business property used in a Canadian operation, specific notification and withholding requirements apply under Section 116 of the Income Tax Act.
The non-resident corporation must notify the CRA of the disposition and obtain a certificate of compliance before or after the sale. If a Section 116 certificate is not obtained, the purchaser becomes liable for, and must remit to the CRA, 25 percent (35 percent effective January 1, 2025) of the gross purchase price within 30 days of the end of the month in which the disposition occurs.
This is a consequential compliance requirement that affects both the seller and the buyer. Foreign corporations planning to divest Canadian assets should engage a Canadian tax advisor well in advance of any planned transaction to ensure the Section 116 process is managed correctly and the withholding tax obligation is handled on the basis of gain rather than gross proceeds.
Practical Steps Before You Enter the Canadian Market
The most common and costly non-resident tax mistakes happen before a single dollar of Canadian revenue is earned, because the structure, timing, and nature of your Canadian entry determine your entire compliance profile.
Before establishing any Canadian presence or generating any Canadian income, a non-resident corporation should assess whether its planned activities will create a permanent establishment, what the applicable tax treaty says about the taxation of its income, whether employees or contractors working in Canada will trigger payroll or Regulation 105 withholding obligations, whether GST/HST registration is required or beneficial, and whether its chosen entry structure, branch or subsidiary, is optimal given its home jurisdiction and long-term intentions.
Getting this right at the outset is significantly cheaper and less disruptive than unravelling compliance failures after the fact. The CRA’s approach to non-resident compliance has become more structured and more assertive in recent years, and the penalties for getting it wrong are real.
The Bottom Line
Canadian tax obligations for non-resident corporations are broader, more layered, and more interconnected than most foreign businesses expect. Understanding the full picture, Part I and Part XIII tax, permanent establishment, branch tax, payroll, Regulation 105, GST/HST, provincial obligations, and Section 116, is the foundation of a compliant and efficient Canadian market entry.
At The Tax Whiz, we help foreign corporations understand their full Canadian tax exposure, structure their Canadian operations efficiently, and stay fully compliant from day one. Whether you’re considering entering the Canadian market or already operating here without a clear compliance picture, we can help you get it right.
Frequently Asked Questions
- What is the difference between Part I and Part XIII tax for non-resident corporations in Canada?
Part I tax applies to active business income earned in Canada, it’s calculated on net profits and filed via the T2 corporate tax return. Part XIII tax applies to passive Canadian-source income paid to non-residents, such as dividends, interest, and royalties, it’s withheld at source by the Canadian payer and generally represents the non-resident’s final Canadian tax obligation on that income. The two regimes operate independently, and a non-resident corporation may be subject to both depending on the nature of its Canadian income.
- Does a non-resident corporation always need a permanent establishment to be taxed in Canada?
Not always. While most tax treaties restrict Part I tax to situations where the non-resident has a permanent establishment in Canada, the filing obligation under Canadian domestic law arises simply from carrying on business in Canada, regardless of whether a treaty exemption applies. Part XIII tax on passive income applies without any permanent establishment requirement. Payroll and Regulation 105 withholding obligations arise based on employee and service activity in Canada, not permanent establishment status.
- What is the branch tax, and who does it apply to?
Branch tax is an additional Canadian tax under Part XIV of the Income Tax Act, applied to non-resident corporations operating a Canadian branch. It’s designed to approximate the withholding tax that would apply if branch profits were paid as dividends by a Canadian subsidiary to its foreign parent. The rate is 25% of after-tax branch profits not reinvested in Canada, though most tax treaties reduce this rate significantly. Corporations subject to branch tax must complete Schedule 20 and attach it to their T2 return.
- What is a Section 116 certificate, and when is it required?
A Section 116 certificate is issued by the CRA when a non-resident corporation notifies it of a planned or completed disposition of taxable Canadian property, including Canadian real estate, shares of private Canadian corporations, and business property. Without a certificate, the Canadian purchaser is required to withhold and remit 25% (35% effective January 1, 2025) of the gross purchase price to the CRA. Obtaining the certificate allows the withholding to be calculated on the gain rather than the gross proceeds, which is almost always more favourable for the seller.
- Do non-resident corporations need to register for GST/HST in Canada?
It depends on the nature and volume of their Canadian activities. Non-resident corporations making more than $30,000 in annual taxable supplies in Canada are generally required to register. Even below that threshold, voluntary registration may be strategically beneficial if the corporation has Canadian expenses from which it could recover GST paid as input tax credits. Digital economy businesses face additional GST/HST obligations regardless of their physical Canadian presence, following rules introduced in July 2021.
- What happens if a non-resident corporation fails to comply with payroll or Regulation 105 withholding obligations?
The consequences are significant. For payroll non-compliance, the non-resident employer can face retroactive remittances plus interest and penalties. For Regulation 105, the Canadian payer is liable for any amounts that should have been withheld but weren’t, meaning the non-resident’s compliance failures can directly affect its Canadian customers. In addition, a history of non-compliance with T4, T4A, or T4A-NR filing obligations can result in the CRA denying future waiver applications, which further compounds the cost of non-compliance over time.