US Withholding Tax for Canadian Service Providers

A Canadian service provider — whether an individual or a corporation — performing services for a US business should be aware of the relevant withholding tax obligations in the United States. Failure to plan appropriately and complete the necessary reporting forms could lead to penalties and unnecessary withholding tax deducted by the US payor.

The Basic Requirement

Any US person (individual, corporation, partnership, or other entity) responsible for making a payment of US-source income to a foreign person is considered a withholding agent. As a withholding agent, the US payor is generally required to withhold 30% on payments made to a foreign person for services performed — unless an exemption applies.

This article covers US federal withholding tax only. State-level withholding requirements in the state where services are performed must also be considered separately.

Exemption 1: Services Performed in Canada

Where services are performed entirely in Canada by the Canadian service provider, withholding tax is not required — provided the payor receives a properly completed withholding certificate from the Canadian service provider:

• Individual Canadian service providers should provide Form W-8BEN — "Certificate of Foreign Status of Beneficial Owner for United States Withholding (Individual)."
• Corporate Canadian service providers should provide Form W-8BEN-E — "Certificate of Foreign Status of Beneficial Owner for United States Withholding (Entities)."

These forms do not need to be submitted to the IRS, but the US payor must retain them in case of an IRS audit. They remain valid for three calendar years from the date signed, unless circumstances change.

If the Canadian service provider performs all services in Canada, no US tax return filing is required.

Exemption 2: Services Performed in the US

When services are performed inside the United States, the 30% withholding generally applies. However, several exemptions may reduce or eliminate this obligation:

A) Minimum Limit Exemption

If annual payments to the Canadian service provider are less than US$3,000 and the provider spends fewer than 90 days in the US during the calendar year, the amounts are not considered US-source income and withholding is not required.

B) Canada-US Tax Treaty Exemption

Under the Canada-US Tax Treaty, Canadian residents carrying on business in the US through a US permanent establishment (PE) are taxed in the US only on profits attributable to that PE. A PE is a fixed place of business (office, branch, place of management) through which a non-resident carries on business.

A Canadian service provider is deemed to have a US PE if either of these tests is met:

• An individual (or employee) is present in the US for 183 days or more in any 12-month period, and more than 50% of the business's gross active revenue comes from services performed by that individual in the US.
• Services are provided in the US for 183 days or more in any 12-month period with respect to the same or a connected project for US-resident customers or customers with a US PE.

C) Effectively Connected Income (ECI) Exemption

If the income is effectively connected with a US trade or business, the payor need not withhold if they receive a properly completed Form W-8ECI — "Certificate of Foreign Person's Claim That Income Is Effectively Connected with the Conduct of a Trade or Business in the United States."

US Tax Return Filing Requirements

To claim the treaty exemption or the ECI exemption, the Canadian service provider must obtain either:

• An Individual Taxpayer Identification Number (ITIN) by completing Form W-7, or
• An Employer Identification Number (EIN) by completing Form SS-4.

An annual US income tax return must also be filed — Form 1040-NR for individuals, Form 1120-F for corporations.

Conclusion

Determining the applicability of US withholding taxes and managing compliance is a complex task that should be done in consultation with a qualified professional. This article provides general guidance to help Canadian service providers plan ahead when accepting new US business. Contact GADT Tax Advisory Inc. to discuss your specific situation.

Disclaimer: The information provided is intended for general guidance only and does not constitute professional tax advice. Please consult a qualified professional before making financial decisions.