CRA Regulation 105 Withholding Tax & Waiver Guide 2026
Understand the 15% Canadian withholding on payments to non-residents for services performed in Canada, when Form R105 can reduce or eliminate the withholding, treaty considerations, payer obligations and T4A-NR reporting.
1. What is Regulation 105 withholding?
Under subsection 105(1) of the Income Tax Regulations, a payer must generally withhold 15% from fees, commissions or other amounts paid to a non-resident, other than an employee, for services rendered in Canada. CRA states that the payer can be Canadian or non-resident.
Key Policy Highlights & Benchmarks
- Standard rate: 15% of the gross amount paid for qualifying services performed in Canada.
- Recipient types can include non-resident individuals, corporations, partnerships and other non-resident service providers.
- The rule is aimed at payments for services actually rendered in Canada, not merely contracts with Canadian customers.
- Employment income is generally governed by the Regulation 102 payroll framework instead.
- The withholding is an amount on account of potential Canadian income tax rather than necessarily the recipient's final Canadian tax liability.
Mandatory Action Checklist
2. What services can trigger Regulation 105?
Regulation 105 can apply when a non-resident provides services in Canada. The service can be consulting, professional, technical, engineering, IT, entertainment, construction, training or another service of an independent nature, subject to the applicable rules and exceptions.
| Scenario | Regulation 105 treatment |
|---|---|
| U.S. consultant travels to Canada and performs consulting work in Toronto | Generally subject to 15% Regulation 105 withholding unless a valid waiver/reduction applies. |
| Indian company sends engineers to Canada to perform project services | Generally subject to 15% Regulation 105 withholding on qualifying payments unless a valid waiver/reduction applies. |
| Non-resident consultant performs all services remotely from India for a Canadian customer | The physical-service-location test generally means Regulation 105 is not triggered merely because the customer is Canadian. |
| Canadian employee paid salary for work in Canada | Generally Regulation 102/payroll rules rather than Regulation 105. |
| Non-resident artist or athlete | Special Regulation 105 rules and, for qualifying low-fee artists/athletes, a simplified waiver process may be available. |
3. Regulation 105 versus other Canadian withholding systems
Choosing the correct withholding regime depends on the nature of the recipient and payment.
| Regime | Typical payment | General treatment |
|---|---|---|
| Regulation 105 | Non-resident non-employment services physically performed in Canada | 15% of gross amount paid unless CRA reduction/waiver applies |
| Regulation 102 | Employment remuneration for services in Canada | Payroll withholding based on employment rules; treaty waivers/certifications can apply in qualifying situations |
| Part XIII | Specified passive/non-business payments such as certain rents, royalties and dividends | Generally 25%, subject to treaty reductions and the specific payment rules |
| GST/HST | Tax on taxable supplies where applicable | Separate indirect-tax analysis; a Regulation 105 waiver does not itself resolve GST/HST obligations |
4. Is the 15% withholding the final Canadian tax?
No. The 15% Regulation 105 amount is a withholding amount on account of potential Canadian income tax. A non-resident who carries on business in Canada can have Canadian Part I tax obligations on income attributable to Canadian services, and the final liability can be greater than, equal to or less than the amount withheld.
Key Policy Highlights & Benchmarks
- If final Canadian tax is lower than the amount withheld, the non-resident may be entitled to a refund after filing the appropriate return.
- If final Canadian tax is higher than the withholding, additional tax can be payable.
- The correct tax-return filing depends on whether the service provider is an individual, corporation, partnership or other entity and on the Canadian business activity.
- The existence of a withholding refund does not eliminate other Canadian tax obligations.
5. Form R105: what is it and who applies?
Form R105 is the Regulation 105 Waiver Application used by a non-resident service provider or an authorized representative to request a reduction or waiver of the 15% withholding. A treaty-based waiver requires the applicant to establish residence in a treaty country and entitlement to the treaty benefits being claimed.
Mandatory Action Checklist
6. The 30-day R105 timing rule: recommendation, not automatic rejection
CRA's treaty-based waiver guidance says the application should be submitted at least 30 days before the services begin in Canada or at least 30 days before the first payment for the related services. This timing gives CRA enough time to review the documentation.
| Timing | Correct interpretation |
|---|---|
| 30 or more days before service/payment | CRA says it is committed to processing a properly documented submission within this period. |
| Less than 30 days before service/payment | Not an automatic rejection. CRA says it will make every effort to process properly documented applications, but timely processing cannot be assured. |
| After services or payments have started | A waiver application can still be made. If granted, the waiver generally applies to payments made after the waiver is issued. |
7. Treaty-based waiver: no universal 183-day rule
Treaty relief depends on the specific Canada tax treaty and the character of the services. CRA's general treaty-based Regulation 105 guidelines use several administrative tests, including a non-recurring services test and recurring-presence tests involving 180 and 240 days. The applicable treaty may contain its own permanent-establishment, fixed-base, business-profits or independent-personal-services rules.
| Issue | Correct approach |
|---|---|
| No permanent establishment/fixed base | Can support treaty relief when the applicable treaty gives that concept the relevant effect. |
| 183-day threshold | May be relevant under some treaties, but is not a universal Regulation 105 threshold for all countries and all service types. |
| Construction/installation services | Many treaties contain a separate permanent-establishment duration rule; the treaty must be checked. |
| Artists/athletes | Treaties frequently have special provisions; absence of a permanent establishment does not necessarily eliminate Canadian taxing rights. |
| Recurring services | CRA's waiver guidelines can consider cumulative presence and contractual periods, including 180/240-day administrative tests. |
8. CRA's treaty-based waiver guidelines
CRA publishes administrative treaty-based waiver guidelines for qualifying non-resident service providers. These are waiver guidelines, not a replacement for reading the actual treaty.
| CRA guideline | General condition described by CRA |
|---|---|
| Test A | Non-resident independent individual earning less than CAN$5,000 in the current calendar year, including certain reimbursed expenses |
| Test B | Non-recurring presence in Canada and fewer than 180 days under the current contract/engagement |
| Test C | Recurring presence, fewer than 180 days under the current engagement and fewer than 240 days during the relevant period |
Important Guidelines & Notes
- These guidelines contain exceptions and are not a substitute for treaty analysis.
- Certain treaty-country construction, offshore, international-transportation, artist/athlete and multi-year-contract situations can fall outside the general guideline.
- The waiver applicant must establish treaty residence and entitlement to treaty benefits when treaty relief is claimed.
9. CRA waiver versus income-and-expense reduction
A non-resident who cannot obtain a treaty-based waiver may still have circumstances in which the required withholding can be reduced based on estimated Canadian income and expenses. These are different grounds and should not be described as the same treaty exemption.
Key Policy Highlights & Benchmarks
- A business loss may be relevant to an income-and-expense waiver, but it is not itself a universal treaty exemption.
- The waiver is not automatically granted because the service provider forecasts low profit.
- Complete documentation of revenue, expenses, contracts and Canadian activities is important.
| Route | Basis for relief |
|---|---|
| Treaty-based R105 waiver | The non-resident establishes treaty entitlement and satisfies the applicable waiver criteria. |
| Income-and-expense waiver/reduction | The withholding based on gross payments would be excessive compared with the estimated Canadian tax on net income. |
| No waiver/reduction letter | Payer generally must withhold the ordinary 15% amount. |
10. T4A-NR reporting requirements
Payments subject to Regulation 105 are reported using Form T4A-NR, Statement of Fees, Services and Other Amounts Paid to Non-Residents for Services Rendered in Canada. CRA's current business guidance requires the information return to be filed by the last day of February following the calendar year.
Mandatory Action Checklist
11. What if the payer fails to withhold?
A payer has a legal withholding and remittance obligation where Regulation 105 applies. If the payer fails to deduct or remit the required amount, CRA can assess the payer for the amount that should have been withheld and applicable interest and penalties.
Key Policy Highlights & Benchmarks
- The withholding liability is not transferred simply because the non-resident recipient is responsible for filing a return.
- The payer should obtain and retain the CRA waiver/reduction letter before changing the statutory withholding amount.
- Late remittance can create additional interest and penalty exposure.
- The correct liability amount depends on the actual payment and the applicable provisions; avoid describing every case as a fixed personal 15% liability.
12. Remote services and services outside Canada
Regulation 105 is focused on services rendered in Canada. A non-resident service provider who performs all services outside Canada does not generally become subject to Regulation 105 solely because the customer is Canadian.
Scenario Examples
13. Service location and contract drafting
A well-documented service agreement can make the Regulation 105 analysis easier, although contract wording does not override the actual facts.
Mandatory Action Checklist
14. Final Canadian tax filing and possible refund
The Regulation 105 withholding does not determine the final tax liability. A non-resident who is taxable in Canada on the relevant business income may need to file the appropriate Canadian return, report the Canadian service income and claim credit for tax withheld. If the tax withheld exceeds the final Canadian liability, a refund can potentially result.
Key Policy Highlights & Benchmarks
- The appropriate return depends on whether the non-resident is an individual, corporation, partnership or other entity.
- A treaty position should be supported by the actual treaty and residence/beneficial facts rather than simply by the presence of a Canadian customer.
- A refund is not guaranteed merely because 15% was withheld.
- A non-resident corporation can have additional Canadian tax-return and business obligations beyond the Regulation 105 withholding.
15. Step-by-step Regulation 105 compliance roadmap
Use this workflow for a Canadian customer engaging a non-resident service provider.
Mandatory Action Checklist
16. Common Regulation 105 mistakes
The most common errors involve treating treaty relief as automatic or confusing service withholding with final tax.
Mandatory Action Checklist
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Frequently Asked Questions (FAQs)
Official Government Sources & Authorities
- CRA - Tax Treatment of Non-Residents Who Perform Services in Canada
- CRA - Deducting Income Tax for Payments to Non-Residents
- CRA - Applying for a Waiver or Reduction of Withholding
- CRA - Guidelines for Treaty-Based Waivers Involving Regulation 105
- CRA - T4A-NR: Payments to Non-Residents for Services Provided in Canada
- CRA - Required Withholding from Amounts Paid to Non-Residents Providing Services in Canada
- CRA - International and Non-Resident Forms and Publications
- CRA - Simplified Regulation 105 Process for Non-Resident Artists and Athletes
- Department of Finance Canada - Canada-U.S. Tax Convention
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