Do You Need a 1099 for a Canadian Contractor?

No, you don’t issue a 1099 for a Canadian contractor. The 1099 series is for U.S. persons. A contractor who lives and works in Canada is a foreign person for U.S. tax purposes, and payments to them run on a separate track: collect a Form W-8 (or Form 8233) before you pay, apply the U.S.-Canada tax treaty if it fits, and report the payment on Form 1042-S rather than a 1099-NEC or 1099-MISC.

Treating a Canadian contractor like a domestic one is the single most expensive mistake in this area. Skip the W-8 and you become personally liable for 30% of every U.S.-sourced payment you made, plus penalties and interest.¹ Getting the paperwork right up front takes minutes.

Why the 1099 Doesn’t Apply

The 1099 series reports payments to U.S. persons: citizens, resident aliens, and domestic entities. A Canadian resident isn’t in that group. The IRS has a separate reporting track for U.S.-sourced income paid to foreign persons, and it centers on Form 1042-S with withholding obligations that don’t exist for domestic payments.²

Where the Work Is Done Decides Everything

Before you worry about forms, figure out where the contractor was physically located when they did the work. Income sourcing follows the contractor’s location, not yours. A developer coding from Toronto is earning foreign-sourced income. That same developer coding from your Chicago office for two weeks is earning U.S.-sourced income for those two weeks.

Only U.S.-sourced income triggers withholding and mandatory Form 1042-S reporting. Foreign-sourced income paid to a foreign person generally falls outside the U.S. tax system. If your Canadian contractor spends part of the year working from your U.S. office and the rest from home in Canada, you may need to split the payment and treat the U.S. portion differently. The payer is responsible for sourcing the income correctly.

The Paperwork to Collect Before You Pay

Domestic contractors give you a W-9. Foreign contractors give you a W-8, and the version depends on who you’re paying.

Individuals and sole proprietors submit Form W-8BEN (Certificate of Foreign Status of Beneficial Owner for United States Tax Withholding and Reporting).
Corporations, partnerships, and other entities submit Form W-8BEN-E.

Both forms certify that the contractor is a foreign person and the beneficial owner of the income, and both let the contractor claim reduced withholding under the U.S.-Canada Income Tax Treaty.

Form 8233 for Personal Services

Individuals providing personal services have another option: Form 8233, which is built specifically for claiming a treaty exemption from withholding on compensation for independent personal services.³ Either W-8BEN or Form 8233 works, but Form 8233 is the tighter fit when the payment is strictly for services.

What the Form Must Show

To claim treaty benefits, the contractor must provide a Canadian tax identification number: a Social Insurance Number (SIN) for individuals, or a Business Number (BN) for entities. The form also has to cite the specific treaty article that exempts or reduces U.S. tax.⁴ For independent contractor services, that’s usually Article VII.

How Long the Form Is Good For

A properly completed W-8BEN is valid from the date signed through the last day of the third succeeding calendar year. A form signed anytime during 2026 remains valid through December 31, 2029.⁵ If the contractor’s circumstances change before then — a move to the U.S., a new entity structure, anything that makes the form inaccurate — you need a fresh one immediately.

Without a valid W-8 on file, the IRS treats the contractor as an undocumented payee. You must withhold at the full 30% statutory rate on U.S.-sourced income with no treaty reduction available.² This is the most common failure, and it’s fully avoidable by collecting the form before the first invoice.

The 30% Default Withholding

Under 26 U.S.C. § 1441, anyone paying U.S.-sourced compensation to a nonresident alien must withhold 30% of the gross payment and send it to the IRS.⁶ Thirty percent of gross, not of net after expenses. Pay a Canadian consultant $10,000 for U.S.-sourced work with no treaty exemption, and you withhold $3,000 and remit $7,000 to the contractor.

Section 1461 makes the withholding agent — the payer — personally liable for tax that should have been withheld.⁷ If the contractor later pays the tax themselves, that doesn’t erase your penalties and interest.¹ The IRS can pursue either party, and in practice pursues the U.S. payer first.

Using the Treaty to Get to Zero

The 30% default rarely ends up being the actual rate. The U.S.-Canada Income Tax Treaty offers a clear path to zero withholding for most independent contractor payments through Article VII (Business Profits). Before 2008, independent personal services had their own Article XIV, but the Fifth Protocol eliminated it and moved that income into Article VII.⁸ Older guidance citing Article XIV is out of date.

The Permanent Establishment Test

Under Article VII, a Canadian resident’s business profits are taxable in the U.S. only if the contractor operates through a “permanent establishment” in the U.S. No permanent establishment means no U.S. tax, which means no withholding.

The treaty defines a permanent establishment as a fixed place of business where the contractor regularly conducts operations, including offices, branches, factories, and workshops.⁹ It doesn’t include using a U.S. facility only for storage, purchasing supplies, or gathering information. A Canadian freelancer who works from home in Vancouver and never sets foot in a U.S. office has no permanent establishment in the U.S., and their income is exempt from U.S. tax under the treaty.

A few situations create a permanent establishment when contractors don’t expect it:

A construction project lasting more than 12 months at a U.S. site.
An agent in the U.S. who regularly signs contracts in the contractor’s name.
A shared or rented U.S. office used on a fixed, ongoing basis, such as a coworking space or a client’s office space.

When the contractor has no permanent establishment and submits a valid W-8 or Form 8233 citing Article VII, you can reduce withholding to zero. You must have a reasonable basis to believe the treaty claim is valid; you can’t apply the exemption if something on the form looks wrong or contradicts what you know about the contractor’s setup.

Reporting on Forms 1042 and 1042-S

Even when the treaty zeroes out withholding, you still have to report. Payments of U.S.-sourced income to a Canadian contractor go on Form 1042-S (Foreign Person’s U.S. Source Income Subject to Withholding), which is the foreign-person counterpart to the 1099-NEC.¹⁰

Form 1042-S shows the gross income paid, the applicable withholding rate, the amount actually withheld, and codes that explain the treatment. For a typical Canadian contractor whose income is exempt under the treaty, that’s Income Code 17 (compensation for independent personal services) with Chapter 3 Exemption Code 04 (exempt under tax treaty).¹¹ The contractor needs those codes to file cleanly with the Canada Revenue Agency and, where relevant, claim a foreign tax credit.

Alongside the individual 1042-S forms, you also file Form 1042, the annual summary return that reconciles total income and total tax deposited across all your foreign payees.

Deadlines

Both Form 1042 and every Form 1042-S are due by March 15 of the year after payment. For 2026 payments, the deadline is March 15, 2027. If that date falls on a weekend or holiday, it moves to the next business day.¹⁰ You also have to furnish a copy of Form 1042-S to the contractor by that same March 15 date.

If you file 10 or more information returns of any type during the year, you have to file your Forms 1042-S electronically. Financial institutions have to e-file regardless of volume.¹¹

Depositing Any Tax You Withhold

When you do withhold — because the treaty doesn’t apply or documentation is missing — the deposit schedule depends on how much you’ve withheld in total across all foreign payees:

More than $2,000 accumulated in a quarter-monthly period: deposit within 3 business days after that period ends.
$200 to $2,000: deposit monthly, by the 15th of the following month.
$1 to $200: deposit annually, by March 15 of the following year with Form 1042.

All deposits go through the Electronic Federal Tax Payment System (EFTPS). Checks aren’t accepted. Late-deposit penalties start at 2% and scale up to 15% once the IRS has issued a demand notice and you’re still more than 10 days out.¹²

What the Penalties Look Like

The IRS penalizes three separate failures: filing incorrect or late Forms 1042-S, failing to furnish copies to the contractor, and failing to withhold. They stack.

Late or missing 1042-S filings for 2026 run $60 per form if you correct within 30 days of the deadline, $130 per form if corrected by August 1, and $340 per form if you file after August 1 or not at all, with annual caps that differ for small businesses (average annual gross receipts of $5 million or less over the prior three years). Intentional disregard is $690 per form or 10% of the reportable amount, whichever is greater, with no cap.¹⁰ The same tiers apply for failure to furnish the 1042-S to the recipient.

Failure to withhold is the bigger exposure. If you should have withheld 30% and didn’t, the IRS can hold you liable for the full uncollected tax plus penalties and interest, and the contractor’s later payment of the underlying tax doesn’t relieve the penalty and interest.¹ On a $50,000 undocumented payment, that’s $15,000 of withholding liability sitting with you.

Social Security and Self-Employment Taxes

You don’t withhold Social Security or Medicare taxes from an independent contractor’s payments in any case, but people ask, so it’s worth stating the underlying rule. The U.S.-Canada Social Security Totalization Agreement assigns coverage based on where the self-employed person lives. A Canadian contractor living in Canada is covered by the Canada Pension Plan (or Quebec Pension Plan) and is exempt from U.S. Social Security and Medicare taxes.¹³ The contractor can document that with a Certificate of Coverage — Form CPT56 from Canada.ca for CPP, or Form QUE/USA 101 from Retraite Québec for QPP.

State Taxes Are a Separate Question

Federal treaties don’t bind the states. Most states don’t recognize federal tax treaties for state tax purposes, so a Canadian contractor with U.S.-sourced income in a state that imposes income tax may face a state withholding obligation even when federal withholding is zero.

State rules vary. Some require withholding on payments to nonresidents above a threshold, using their own forms and rates that have nothing to do with the 1042-S process. If any of the contractor’s work happened while they were physically in a state with an income tax, check that state’s rules independently. State penalties can be just as aggressive as federal ones.

1
Internal Revenue Service. Tax Withholding Types
2
Internal Revenue Service. Federal Income Tax Withholding and Reporting on Other Kinds of U.S. Source Income Paid to Nonresident Aliens
3
Internal Revenue Service. About Form 8233, Exemption From Withholding on Compensation for Independent (and Certain Dependent) Personal Services of a Nonresident Alien Individual
4
Internal Revenue Service. Claiming Tax Treaty Benefits
5
Internal Revenue Service. Instructions for Form W-8BEN
6
Office of the Law Revision Counsel. 26 USC 1441 – Withholding of Tax on Nonresident Aliens
7
Office of the Law Revision Counsel. 26 U.S. Code 1461 – Liability for Withheld Tax
8
U.S. Department of the Treasury. Protocol Amending the Convention Between the United States and Canada With Respect to Taxes on Income and on Capital
9
Internal Revenue Service. United States – Canada Income Tax Convention
10
Internal Revenue Service. Instructions for Form 1042-S
11
Internal Revenue Service. 2026 Instructions for Form 1042-S
12
Internal Revenue Service. Publication 515 (2026), Withholding of Tax on Nonresident Aliens and Foreign Entities
13
Social Security Administration. Totalization Agreement with Canada