The CRA Just Extended a Massive Tax Break: What the Last-Minute Regulation 105 Pivot Means for You.

The CRA Regulation 105 extension just handed Canadian businesses and non-resident contractors a massive lifeline—and most people have no idea it exists. On August 13, 2025, the Canada Revenue Agency extended its administrative relief policy for Regulation 105 withholding tax until June 30, 2026, giving affected taxpayers nearly two extra years of breathing room. If you hire non-resident service providers or you’re a non-resident earning income in Canada, this extension could save you thousands in withholding taxes, interest, and penalties. In this guide, you’ll learn exactly what changed, who benefits, and how to take advantage before the deadline hits.

What Is Regulation 105 Withholding Tax and Why Does the CRA Regulation 105 Extension Matter?

Before diving into what changed, you need to understand what Regulation 105 actually is. This regulation requires Canadian businesses to withhold 15% of payments made to non-residents who provide services in Canada. Think of it as the CRA’s way of ensuring non-resident contractors pay their fair share of Canadian taxes.

How the 15% Withholding Works

Here’s a simple example: If your Toronto-based company hires a U.S. consultant to deliver a $10,000 project in Canada, you’re legally required to withhold $1,500 (15%) and remit it directly to the CRA. The consultant receives only $8,500. This withholding acts as an advance payment toward any Canadian tax the non-resident might owe.

The non-resident can later file a Canadian income tax return to claim a refund if the 15% exceeds their actual tax liability. But here’s where it gets complicated—and expensive.

The Subcontracting Problem That Triggered This Relief

The real headache emerged around subcontracting arrangements. Imagine you hire a non-resident company, and that company subcontracts part of the work to another non-resident. In 2024, the CRA clarified that businesses might need to withhold 15% not just on the main contractor’s fees, but also on the reimbursed subcontractor fees—a change in position from how reimbursements were previously treated. This created a compliance nightmare for businesses that had no visibility into their contractors’ subcontracting arrangements.

The administrative burden was enormous. Many Canadian businesses simply weren’t set up to track these multi-layered arrangements, leading to confusion, accidental non-compliance, and potential penalties.

How Does the CRA Regulation 105 Extension Help Your Business?

The CRA’s decision to extend Regulation 105 withholding tax relief until June 30, 2026 is a genuine win for affected businesses. Originally, the relief was set to expire on September 30, 2024. The August 2025 announcement gives you nearly two additional years to get your compliance systems in order—time the CRA says it needs to complete public consultations on the broader Regulation 105 waiver process.

What the Relief Actually Covers

Under this administrative relief policy, if you meet certain conditions outlined in the CRA’s 2008 guidance document, you won’t be required to remit withholding tax on subcontractor fee reimbursements. Just as importantly, you’ll also be protected from related interest and penalties during the relief period.

This doesn’t mean Regulation 105 is suspended entirely. You still need to withhold and remit the standard 15% on direct payments to non-resident service providers. The relief specifically targets the more complicated subcontracting reimbursement scenarios that were catching businesses off guard.

💡 Note: A separate, more permanent waiver mechanism (proposed under subsection 153(8) of the Income Tax Act) was announced in the 2024 federal budget but has not yet been passed into law as of mid-2026. The current administrative relief is a temporary bridge while that legislation works its way through Parliament—worth watching if you manage ongoing non-resident contractor relationships.

Who Benefits Most From This Extension?

This CRA non-resident tax break primarily helps three groups:

Canadian businesses that regularly hire non-resident contractors, especially in industries like technology, consulting, film production, and professional services where cross-border work is common.

Non-resident contractors who provide services in Canada and use subcontractors to complete portions of their work. Without this relief, your Canadian clients might hesitate to hire you due to the compliance complexity.

Payroll and accounting departments that were scrambling to implement tracking systems for subcontractor reimbursements. You now have until June 30, 2026 to build proper processes.

If you’re concerned about how cross-border income might affect your overall tax situation, you’ll want to review hidden Canadian tax credits and benefits you might be missing to ensure you’re optimizing your entire tax picture.

Regulation 105 Withholding Tax: Waiver vs. Standard Withholding Comparison

Non-residents have two main options when it comes to handling Canadian withholding tax 2026 obligations: accepting the standard 15% withholding or applying for a waiver. Here’s how they compare:

The waiver option is particularly valuable if your actual Canadian tax liability is much lower than the 15% withholding rate. For example, if you’re a U.S. contractor protected by the Canada-U.S. Tax Treaty and you don’t have a permanent establishment in Canada, your actual tax owing might be zero—making that 15% withholding pure cash flow damage until you file for a refund.

How to Apply for a Regulation 105 Withholding Tax Waiver

If you’re a non-resident contractor who regularly works in Canada, applying for a Regulation 105 waiver can dramatically improve your cash flow. Here’s the step-by-step process.

Step 1: Gather Your Documentation

Before applying, collect the following:

• Details of the services you’ll provide in Canada
• A signed and complete copy of your service contract, including the names and addresses of the parties, dates and places of services, payment amounts and schedule
• Copies of all subcontracts or rental agreements connected to the project
• Information about your tax residency status
• Any relevant tax treaty provisions that reduce your Canadian tax liability

The CRA needs to understand your specific situation to determine whether a reduced withholding rate is appropriate.

Step 2: Complete Form R105, Regulation 105 Waiver Application

You’ll need to submit Form R105 (and Appendix B for an income-and-expense waiver) to the CRA. There are two main paths: a treaty-based waiver, available to residents of treaty countries without a Canadian permanent establishment, or an income-and-expense waiver, where you demonstrate that your estimated tax liability is lower than the standard 15% withholding. Include calculations showing your expected income, expenses, and why treaty provisions or other factors reduce your Canadian tax obligation.

💡 Pro Tip: Apply directly to the Centre of Expertise that serves the location where your services will be performed—not a generic CRA mailbox. Sending it to the wrong office can add weeks to processing.

Step 3: Submit Well Before Your Project Starts

Timing is critical. CRA guidance recommends submitting your waiver application at least 30 days before your services begin in Canada or before your first payment for those services—not after. Processing times can vary depending on the complexity of your situation and current CRA workload, so building in extra buffer time is wise. If you wait too long, your client will have no choice but to withhold the full 15%.

💡 Pro Tip: For ongoing client relationships, ask the CRA about a waiver covering multiple projects or a longer engagement period. This reduces administrative burden for both you and your client and avoids reapplying every time a new contract starts.

Step 4: Provide the Waiver Letter to Your Canadian Client

Once approved, the CRA will issue a waiver letter specifying the reduced withholding rate (or confirming no withholding is required). Give this letter to your Canadian client before invoicing. They’ll use it to justify withholding less than the standard 15%.

Common Mistakes That Cost Canadians Money on Regulation 105

Even with the extended relief period, many businesses and contractors make expensive errors when dealing with Regulation 105 withholding tax. Here’s what to avoid.

Mistake #1: Assuming the Extension Means No Action Required

The relief extension is not a free pass to ignore compliance. The CRA extended the deadline specifically to give businesses time to implement proper tracking and withholding systems. If you’re not using this time to prepare, you’ll face a rude awakening on July 1, 2026.

Start documenting your non-resident contractor relationships now. Identify which arrangements involve subcontracting and determine what withholding obligations you’ll have once the relief expires.

Mistake #2: Failing to Withhold on Direct Payments

The administrative relief only applies to subcontractor fee reimbursements. You’re still required to withhold and remit 15% on direct payments to non-resident service providers. Some businesses mistakenly believe the relief covers all Regulation 105 obligations—it doesn’t.

Non-compliance on direct payments can result in the CRA assessing the full 15% against your business, plus interest and penalties. You become liable for the tax your contractor should have paid—and notably, there’s no statutory limitation period for Regulation 105 assessments, meaning the CRA can pursue unpaid withholding tax years after the fact.

Mistake #3: Not Applying for Waivers When Eligible

Many non-residents simply accept the 15% withholding without realizing they could reduce or eliminate it. If you’re protected by a tax treaty, have minimal Canadian-source income, or incur significant expenses in earning your Canadian income, a waiver could put thousands of dollars back in your pocket immediately rather than waiting for a tax refund.

Understanding how different income types are taxed is crucial for overall financial planning. If you’re building investments alongside your business income, check out our guide on non-registered vs registered accounts in Canada to optimize your tax efficiency.

Mistake #4: Poor Record-Keeping

If the CRA ever audits your Regulation 105 compliance, you’ll need to produce detailed records showing:

• Who you paid
• Their tax residency status
• What services they provided
• Where the services were performed
• Whether any waiver was in place
• Withholding amounts remitted to the CRA

Keep these records for at least six years. Sloppy records can turn a minor compliance issue into a major tax liability.

Understanding the 2026 Canadian Tax Context

The Regulation 105 extension doesn’t exist in isolation. It’s part of a broader Canadian tax landscape that’s seen significant changes heading into 2026.

Federal Tax Rate Changes

Effective July 1, 2025, the federal government reduced the lowest income tax bracket rate from 15% to 14%. Because the change started mid-year, the effective federal rate for all of 2025 worked out to 14.5%; for 2026 and onward, the full 14% rate applies. For 2026, this lowest bracket covers income up to $58,523. This change benefits lower and middle-income Canadians, though provincial tax rates still vary by region.

If you’re a non-resident contractor, understanding these broader changes helps you estimate your true Canadian tax liability more accurately—which is essential when applying for a Regulation 105 waiver.

Planning for the Relief Expiration

June 30, 2026 will arrive faster than you think. Canadian businesses should use the remaining time to:

• Audit existing non-resident contractor relationships
• Identify subcontracting arrangements that will require withholding
• Update accounting systems to track and remit withholdings
• Communicate changes to non-resident contractors
• Consider restructuring arrangements to minimize compliance burden

💡 Pro Tip: If you regularly work with the same non-resident vendor’s subcontractors, ask your vendor now whether they can register for a Canadian business number and handle their own withholding remittances directly. This shifts the compliance burden where it more naturally belongs once the relief expires.

If you’re self-employed or running a small business, managing these obligations alongside your regular tax planning can be overwhelming. Make sure you’re also aware of CRA late filing penalties so you don’t compound one compliance issue with another.

Key Takeaways

• The CRA extended Regulation 105 administrative relief from September 30, 2024 to June 30, 2026, giving businesses extra time to comply with subcontractor withholding rules.
• Standard Regulation 105 withholding remains at 15% of gross payments to non-resident service providers—this hasn’t changed.
• Non-residents can apply for waivers (treaty-based or income-and-expense) if the 15% withholding exceeds their actual Canadian tax liability, potentially reducing withholding to 0–5%.
• The relief only covers subcontractor fee reimbursements—you must still withhold on direct payments to non-residents.
• There’s no statutory limitation period for Regulation 105 assessments, so poor record-keeping can create liability years later.
• Use the extension period to implement proper tracking systems before the July 2026 deadline hits.

Frequently Asked Questions

What is Regulation 105 and who does it affect?

Regulation 105 requires Canadian businesses to withhold 15% of payments made to non-residents who provide services in Canada. It affects any Canadian company, organization, or individual who hires non-resident contractors, as well as the non-resident service providers themselves. The regulation ensures non-residents pay Canadian tax on income earned from Canadian sources.

How long is the CRA Regulation 105 extension valid for?

The CRA Regulation 105 extension is valid until June 30, 2026. The administrative relief was originally set to expire on September 30, 2024, but the CRA announced on August 13, 2025 that it would extend the relief, giving businesses nearly two additional years to adapt their compliance systems. After June 30, 2026, businesses will need to fully comply with subcontractor fee withholding requirements unless the relief is extended again.

How do I qualify for the Regulation 105 withholding tax exemption?

To qualify for relief from withholding on subcontractor fee reimbursements, you must meet the conditions outlined in the CRA’s 2008 guidance document. For a full or partial waiver on direct payments, non-residents must apply to the CRA using Form R105, demonstrating either treaty-based eligibility or that the 15% withholding exceeds their anticipated Canadian tax liability based on estimated income and expenses.

Is there a deadline for submitting a Regulation 105 waiver application?

Yes. CRA guidance recommends submitting your waiver application at least 30 days before your services begin in Canada or before the first payment for those services. Applications submitted later may still be reviewed, but you risk your Canadian client withholding the full 15% in the meantime if the waiver isn’t approved before payment is due.

The CRA Regulation 105 extension represents a significant opportunity for Canadian businesses and non-resident contractors to get their compliance houses in order without facing immediate penalties. Whether you’re a business owner who hires international talent or a non-resident earning income in Canada, understanding these rules—and taking action before the June 30, 2026 deadline—can save you thousands of dollars and countless headaches. Take advantage of this breathing room while it lasts, and explore more tax-saving strategies here on Getwealthy.