1. Overview of CRA Regulation 105 Withholding Rules
Under Regulation 105 of the Canadian Income Tax Regulations, any person (Canadian or non-resident) paying a non-resident individual or corporation for services performed in Canada MUST withhold 15% of the gross fee paid and remit it to the Canada Revenue Agency (CRA).
Key Policy Highlights & Benchmarks
- 15% Mandatory Gross Withholding: Applies to all consulting, engineering, IT, entertainment, and contract services physically rendered in Canada by non-residents
- Withholding is NOT a Final Tax: The 15% withholding is a tax security deposit; the non-resident files a Canadian T1 or T2 tax return to calculate actual tax or claim a full refund
- Regulation 105 Waiver (Form R105): Non-residents can apply for a CRA waiver to reduce or eliminate the 15% withholding if exempt under a tax treaty (DTAA) or facing net operating losses
- Payer Penalty for Failure to Withhold: If a Canadian payer fails to withhold 15%, the payer is personally liable for the full 15% tax plus interest and penalties
Mandatory Action Checklist
✓Determine if service contract involves physical work performed inside Canada
✓Submit CRA Form R105 waiver application at least 30 days before work begins
✓Issue Form T4A-NR to non-resident contractor by last day of February
2. Reg 105 Withholding vs Reg 102 Payroll Matrix
Comparing Reg 105 and Reg 102 withholding.
| Withholding Regulation | Target Recipient Type | Mandatory Withholding Rate | Exemption Mechanism |
|---|---|---|---|
| Regulation 105 | Independent Contractors / Foreign Corporations | 15% of gross invoice payment | Form R105 Waiver (DTAA Treaty Relief) |
| Regulation 102 | Foreign Employees working in Canada | Standard graduated T4 payroll tax | Form R102 Waiver or Employer Certification |
| Part XIII Tax | Passive income (Rent, Dividends, Royalties) | 25% (or reduced DTAA rate 15%) | NR4 reporting / DTAA reduced rate |
3. DTAA Treaty Relief & Form R105 Waiver Requirements
Filing Form R105 waivers and claiming refunds.
Key Policy Highlights & Benchmarks
- Article 14 / Permanent Establishment Exemption: Under DTAA treaties (US, UK, India), if a foreign contractor has no Permanent Establishment (PE) in Canada and stays under 183 days, CRA grants a 100% Reg 105 waiver
- 30-Day Advance Filing Rule: Form R105 MUST be submitted to the local CRA Tax Services Office at least 30 days before the contract starts or first payment is made
- T4A-NR Information Return: Payers must file Form T4A-NR by February 28 reporting gross payments and Reg 105 tax remitted to CRA
- Filing Corporate T2 Return for Refund: Foreign corporations must file a Canadian T2 Corporate Tax Return to recover overwithheld Reg 105 tax
Critical Regulatory Note30-DAY WAIVER DEADLINE: Form R105 waiver applications submitted less than 30 days before payments start are routinely rejected by CRA.
4. Step-by-Step Reg 105 Waiver Roadmap
Filing Reg 105 waiver.
Mandatory Action Checklist
✓Draft service contract specifying Canadian vs foreign work days
✓Submit Form R105 to CRA 30 days in advance
✓File T4A-NR and T2 tax return for refund
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Frequently Asked Questions (FAQs)
15% of the gross fee paid to a non-resident for services rendered in Canada.
No. It is a tax security deposit; the non-resident files a Canadian tax return to calculate actual tax or claim a refund.
At least 30 days before the service begins or first payment is made.
The Canadian payer becomes personally liable for the full 15% tax plus interest and penalties.
CRA Form T4A-NR (Statement of Payments to Non-Residents for Services Rendered in Canada).
Yes. If the contractor has no Permanent Establishment in Canada and qualifies under DTAA treaty rules.
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Reg 105 Metrics
Statutory Withholding Rate
15% Gross Fee Withholding TaxWaiver Application Form
CRA Form R105 (Regulation 105)Filing Deadline
30 Days Prior to Service Start DateYear-End Reporting
CRA Form T4A-NR Information ReturnExplore All 87 Visa Guides
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