W-8BEN for Canadian Investors: How to Fill It Out and Reduce US Withholding to 15%

Form W-8BEN is the form a non-US person gives to a US financial institution or payer to certify their foreign status and claim a reduced rate of US withholding under a tax treaty. For Canadians, this form is the difference between 30% withholding on US dividends and 15% withholding. Every Canadian who holds US stocks in a US brokerage account, earns US royalties, or is paid by a US company for services performed outside the US should have a current W-8BEN on file. The form is valid for three calendar years after the year it is signed.

Who needs to file Form W-8BEN?

Any non-US individual who receives US-source income subject to withholding and wants to claim a reduced treaty rate. For Canadians, the most common situations:

• Canadian investors holding US stocks in a US brokerage account (Charles Schwab, Interactive Brokers, TD Ameritrade). US dividends paid to the account are subject to withholding. The W-8BEN reduces the rate from 30% to 15%.
• Canadian investors holding US stocks in a Canadian brokerage account. The Canadian brokerage acts as an intermediary, and the withholding is applied at the custodian level. Most Canadian brokerages collect the W-8BEN (or its equivalent information) during account setup.
• Canadian freelancers or consultants paid by a US company for services performed entirely in Canada. Pay for services performed outside the US is foreign-source income (IRC 862(a)(3)), so US withholding generally doesn’t apply, but the payer will ask for a W-8BEN to document that you’re a foreign person.
• Canadian owners of US rental property who use a US property manager. The manager is the withholding agent and must withhold 30% of gross rents unless the owner elects under IRC 871(d) to treat the rent as effectively connected income and gives the manager Form W-8ECI (a W-8BEN doesn’t reduce withholding on rents).
• Canadian recipients of US royalties (book royalties from a US publisher, music royalties from a US label, patent royalties from a US licensee).

Who does NOT need a W-8BEN: US citizens, US residents (green card holders or those meeting the substantial presence test), and non-US entities (they use Form W-8BEN-E instead).

How do you fill out Form W-8BEN?

The form has three parts:

Part I: Identification of Beneficial Owner

• Line 1: Name (must match the name on the account or payment records).
• Line 2: Country of citizenship. For Canadians: “Canada.”
• Line 3: Permanent residence address. This is your home address in Canada (not a US address, not a P.O. Box).
• Line 4: Mailing address (if different from Line 3). Leave blank if same.
• Line 5: US taxpayer identification number (SSN or ITIN). To claim treaty benefits, the instructions accept either a US TIN here or a foreign TIN (your Canadian SIN) on Line 6a, so most Canadians leave this blank. A US TIN is still required in a few situations listed in the instructions.
• Line 6a: Foreign tax identifying number. Your Canadian Social Insurance Number (SIN). Give it here (or a US TIN on Line 5) to claim treaty benefits. It’s also required when the form documents an account you hold at a US office of a financial institution (the usual brokerage case).
• Line 7: Reference number(s). Optional. Some institutions use this to link the form to your account number.
• Line 8: Date of birth. Required when you document a financial account held with a US office of a financial institution (the usual brokerage case).

Part II: Claim of Tax Treaty Benefits

• Line 9: Country of residence for treaty purposes. “Canada.”
• Line 10: Special rates and conditions. Use it only when the treaty claim needs conditions beyond line 9 and Part III. The instructions say it generally doesn’t apply to dividends or interest (other than a dividend rate based on ownership, like the 5% corporate rate), so a Canadian individual claiming 15% on portfolio dividends usually leaves it blank. Royalties are different: you fill it in because the treaty has different rates for different types, for example “Article XII, paragraph 3, 0% rate” on software royalties or “Article XII, paragraph 2, 10% rate” on trademark royalties.

When you do use line 10, it asks for the article number, the paragraph (if applicable), the rate, and the type of income.

Part III: Certification

Sign and date. The form must be signed under penalties of perjury. An unsigned form is invalid.

What are the treaty withholding rates for Canadians?

The US-Canada treaty sets the following withholding rates:

• Dividends from US corporations: 15% (Article X, paragraph 2(b)). The 5% rate in paragraph 2(a) applies only if the beneficial owner is a company that owns at least 10% of the voting stock of the paying company.
• Interest: 0% for most interest, including interest on related-party loans (Article XI(1)). The exception is contingent interest that doesn’t qualify as portfolio interest under US law, which the US can tax at up to 15% (Article XI(6)(a)).
• Royalties: 0% for copyright royalties on literary, dramatic, musical and artistic works, payments for computer software, and payments for patents and know-how (Article XII(3)); 10% for other royalties, such as trademarks and film or TV royalties (Article XII(2)).
• Pensions and annuities: 15% on periodic payments (Article XVIII(2)). Lump-sum distributions may have different treatment.
• Social Security benefits: US Social Security paid to a Canadian resident is taxable only in Canada (Article XVIII(5)), so the US doesn’t withhold. Canada taxes it like a CPP benefit, except that 15% of the benefit is exempt from Canadian tax.

When does the W-8BEN expire?

The form is valid for three calendar years after the year it is signed. If you sign a W-8BEN on March 15, 2025, it expires on December 31, 2028. A new form must be provided before the expiration date to avoid the withholding rate reverting to 30%.

Most US brokerages send a reminder when the W-8BEN is approaching expiration. The renewal process is typically online (log into the brokerage account and re-certify).

A W-8BEN also becomes invalid if a change in circumstances makes information on it incorrect, such as a move to the US, or a move out of Canada when you’re claiming Canadian treaty benefits. You must notify the payer within 30 days and give a new form. (A move within Canada generally isn’t a change in circumstances.)

What about W-8BEN-E?

Form W-8BEN-E is the entity version of the W-8BEN. It is used by non-US entities (Canadian corporations, partnerships, trusts) receiving US-source income. The form is substantially more complex than the individual W-8BEN, with 30 parts covering entity type, FATCA status, treaty claims, and chapter 4 (FATCA) certifications.

A Canadian corporation that receives US dividends, interest, or royalties provides a W-8BEN-E to the US payer. The treaty rates are similar to the individual rates, with some differences (the 5% dividend rate is available to Canadian corporate shareholders owning at least 10% of the voting stock of the US paying corporation).

What about RRSP accounts?

US dividends received inside a Canadian RRSP are exempt from US withholding under Article XXI(2) of the treaty, which exempts dividends and interest earned by a trust operated exclusively to provide pension or retirement benefits. The exemption belongs to the RRSP trust, not to you personally, so it isn’t claimed on your own W-8BEN. Ask the RRSP’s financial institution how the plan is documented with the US payer.

This exemption is one of the key advantages of holding US dividend stocks inside an RRSP rather than in a non-registered account. In a non-registered account, 15% US withholding applies (with W-8BEN). In an RRSP, 0% US withholding applies.

US dividends received inside a TFSA are NOT exempt from US withholding. The TFSA is not recognized as a retirement plan under the treaty. US dividends in a TFSA are subject to the standard 15% (with W-8BEN) or 30% (without) withholding rate, with no mechanism to recover the tax (since the TFSA is tax-free in Canada, there is no Canadian tax against which to claim a foreign tax credit).

Common mistakes

1. Not providing the form at all. Many Canadian investors open US brokerage accounts and do not realize they need to file a W-8BEN. The brokerage withholds 30% on dividends and interest, and the investor loses 15% more than necessary.

2. Letting the form expire. The three-year validity period catches people off guard. An expired W-8BEN silently reverts the withholding to 30%.

3. Using the wrong form. Individuals use W-8BEN. Entities use W-8BEN-E. Using the wrong form causes the brokerage to reject it and apply the 30% default rate.

4. Missing the foreign TIN. The form requires either a US TIN (Line 5) or a foreign TIN (Line 6a). Many Canadians leave both blank, which invalidates the treaty claim.

5. Claiming the wrong treaty article. Dividends are Article X. Interest is Article XI. Royalties are Article XII. Claiming the wrong article, or claiming a rate that does not exist in the treaty, invalidates the claim for that income type.

Related guides:

• Reclaiming US Withholding Tax on Dividends for Canadian Investors
• Cross-Border Dividend Tax: Canada-US
• Canadian Freelancer W-8BEN for US Clients
• W-8BEN-E for Canadian Corporations
• Canadian RRSP US Tax Treatment
• US-Canada Tax Treaty Explained
• Foreign Tax Credit Limitation and Carryover
• Canadian Tax on US Social Security Benefits

Related guides:

• Form 1040-NR Guide for Canadians with US Income: When You Must File and What to Report

This guide is general information, not tax advice for your specific situation. Which points apply, and how, depends on your facts.