Forming a US LLC from Canada: Complete Guide (2026)

Canada-US is the number one cross-border founder pairing on Stripe Atlas. Same time zones, geographic proximity, USMCA trade access, and a shared commercial language make the US the default expansion market for Canadian founders. But the Canada Revenue Agency (CRA) treats US LLCs differently from the IRS — and that mismatch creates a tax trap that costs Canadian founders thousands of dollars annually. A US LLC that operates as a tax-efficient pass-through entity under US rules becomes a foreign corporation under Canadian rules, with effective tax rates reaching 50-75% on the same income.

I have operated US entities as a cross-border founder for nearly two decades and have watched Canadian founders walk into this trap repeatedly. The formation process itself is straightforward. The tax consequences of choosing the wrong entity type are not. This guide walks through the full formation process, the CRA classification problem, and the structural alternatives that exist for Canadian residents.

Quick overview: forming a US LLC from Canada

The formation steps are identical to any non-resident LLC formation. The CRA tax classification issue is unique to Canadian residents and is the single most consequential decision in this process.

Step 1: Choose a state — Wyoming vs Delaware

For Canadian single-member LLCs, Wyoming at $60/yr and Delaware at $300/yr are the two viable options. The state choice does not affect Canadian tax treatment — the CRA classifies the LLC the same way regardless of which US state issued the articles of organization. Wyoming is lower cost. Delaware is what Stripe Atlas provisions.

The CRA does not distinguish between a Wyoming LLC and a Delaware LLC. Both are classified as corporations under Canadian tax rules. The state selection is therefore a cost and formation service decision, not a tax decision.

Wyoming's $60/yr annual fee and explicit single-member charging order protection (Wyoming Statutes section 17-29-503) make it the default for cost-conscious founders. Delaware's $300/yr buys access to the Court of Chancery — relevant for multi-party corporate disputes, less relevant for single-member LLCs. The full state comparison maps all five commonly cited states.

If using a formation service: Stripe Atlas provisions Delaware entities exclusively. Firstbase and Doola offer both Wyoming and Delaware. The formation service comparison breaks down the three-year total cost of each.

Step 2: Form the LLC

LLC formation takes 1-7 business days depending on the state and method. Canadian founders can file directly with the state secretary of state office or use a formation service. The process is identical to any non-resident formation — no Canadian-specific requirements exist at the state level.

Two paths to formation:

Path A: Formation service. Stripe Atlas ($500), Firstbase ($399), or Doola ($297) handle the articles of organization, operating agreement, EIN, and registered agent setup. This is the most common path for Canadian founders because the services also provide a US mailing address and, in some cases, banking introductions.

Path B: Direct filing. File articles of organization directly with the state secretary of state (Wyoming or Delaware). Formation fee is $100 (Wyoming) or $90 (Delaware). A registered agent is required in the formation state — expect $100-200/yr.

What the articles of organization require:

1. LLC name (unique within the state)
2. Registered agent name and address (in-state)
3. Organizer name (can be the registered agent)
4. Principal office address (can be your Canadian address)

The LLC operating agreement is not filed with the state but is required by banks, payment processors, and the IRS. Formation services include a template. Direct filers can use a template from the state bar association or an attorney.

Step 3: Get an EIN

The EIN (Employer Identification Number) is the LLC's US tax ID. Canadian founders without a US Social Security Number (SSN) obtain it through Form SS-4 — by fax (4 business days to 4 weeks), by phone at (267) 941-1099 (same day), or through a formation service (1-6 weeks). The EIN is free. The IRS charges nothing for it.

The full process with step-by-step instructions is covered in the EIN without SSN guide. Key points for Canadian founders:

• Phone method works well from Canada. The IRS international line at (267) 941-1099 is accessible from Canadian phone numbers. Long-distance charges apply. Call between 6:00 AM and 11:00 AM Eastern for shorter hold times.
• Canadian passport number replaces SSN. On Form SS-4 line 7b, enter the Canadian passport number where the form asks for the responsible party's SSN or ITIN.
• Canadian address is acceptable. The IRS accepts a Canadian mailing address on the EIN application. No US address is required for the EIN itself.
• Formation services include EIN. All three major services (Stripe Atlas, Firstbase, Doola) file Form SS-4 as part of their formation package.

Step 4: Open a US bank account

Canadian founders have a unique advantage in US banking: TD Bank and RBC operate on both sides of the border. A Canadian founder with an existing TD Canada Trust or RBC Royal Bank relationship can leverage that relationship when opening a TD Bank or RBC Bank (US) business account. This cross-border banking relationship reduces the identity verification friction that other non-resident founders face.

Banking options for Canadian LLC owners

TD Bank cross-border banking. TD Bank is one of the ten largest banks in the US and is a subsidiary of TD Bank Group — the same parent as TD Canada Trust. Canadian founders with an existing TD Canada Trust account can open a TD Bank US business account with reduced friction. The cross-border relationship provides identity verification continuity that standalone US bank applications lack. TD has over 1,100 branches in the eastern United States.

RBC Bank (US). RBC operates a US banking subsidiary specifically targeting Canadians doing business in the US or living in the US. The cross-border referral path from RBC Royal Bank to RBC Bank (US) is established and documented. RBC Bank operates primarily in the southeastern United States.

Mercury. The default online banking choice for non-resident LLC owners. No physical branch visits. Application is online. The Mercury vs Wise vs Relay comparison covers fees and structural differences in detail. Mercury is USD-only and FDIC-insured.

Wise Business. Particularly relevant for Canadian founders because Wise supports both CAD and USD natively. Revenue received in USD can be converted to CAD at mid-market rates with a transparent 0.57%+ fee — structurally cheaper than bank wire transfers with opaque FX markups. Wise is not FDIC-insured; funds are safeguarded, not deposited.

What banks need to open the account:

The CRA tax trap: why Canadian-owned US LLCs face 50-75% effective tax rates

This is the section that matters most. The CRA does not recognize US LLC pass-through treatment. Under Canadian tax law, a US LLC is classified as a corporation — a "foreign affiliate" — regardless of how the IRS classifies it. This mismatch means the same income is treated as pass-through by the IRS and as corporate income by the CRA, creating double taxation that the Canada-US Tax Treaty was not designed to resolve for this specific entity type.

How the IRS sees a single-member LLC

The IRS treats a single-member LLC as a "disregarded entity" by default (IRS Publication 3402). The LLC's income flows through to the owner's personal tax return. The owner pays US tax (if any) at individual rates. There is no corporate-level tax. This pass-through treatment is the primary reason US founders choose LLCs over C-Corps.

How the CRA sees a single-member LLC

The CRA treats US LLCs as corporations under CRA Interpretation Bulletin IT-343R and subsequent guidance. The CRA's position: an LLC is a separate legal entity, distinct from its owner, and is therefore a corporation for Canadian tax purposes — regardless of how the US classifies it.

The consequences of this mismatch:

The double taxation mechanics

Here is what happens in practice:

1. The LLC earns $100,000 in the US. The IRS sees this as the Canadian owner's personal income. Depending on the type of income and treaty provisions, US tax may be $0-37,000.

2. The CRA also taxes the $100,000. But the CRA classifies the income as either FAPI (if the LLC is a "controlled foreign affiliate" earning primarily investment or service income) or as a deemed dividend when funds are distributed. FAPI is taxed at the owner's full marginal rate — up to 53.53% in Ontario — on an accrual basis, meaning the tax is owed even if the money stays in the LLC.

3. Foreign tax credits do not fully offset. The Canada-US Tax Treaty provides foreign tax credits to prevent double taxation. But the credit mechanism assumes both countries classify the entity and income the same way. When the IRS sees pass-through income and the CRA sees corporate income, the credits do not align properly. The result: effective tax rates of 50-75% on the same income.

4. The CRA taxes on an accrual basis for FAPI. Even if the LLC retains all its earnings and distributes nothing, the Canadian owner owes Canadian tax on the LLC's income in the year it is earned. This creates a cash flow problem: tax is owed on income that has not been received.

Who this affects most

The FAPI rules are particularly punitive for Canadian founders whose US LLCs earn service income (consulting, SaaS, freelancing). Under the Income Tax Act, service income earned by a controlled foreign affiliate in a country where the affiliate does not employ more than five full-time employees in the active conduct of business is classified as FAPI. A solo founder's single-member LLC almost always meets this definition.

The fix: elect corporate treatment with the IRS

The structural fix is filing IRS Form 8832 to elect corporate treatment for the LLC. This makes the IRS treat the LLC as a corporation — the same way the CRA already treats it. When both countries classify the entity as a corporation, the Canada-US Tax Treaty's foreign tax credit mechanism functions as designed. The trade-off: the LLC loses pass-through treatment in the US and is subject to US corporate tax (21%).

How Form 8832 works

Form 8832, "Entity Classification Election," allows an LLC to elect to be treated as a corporation for US federal tax purposes. This is sometimes called "checking the box." The election is filed with the IRS and can be effective retroactively up to 75 days before the filing date.

After the election:

The trade-off

Electing corporate treatment eliminates the entity classification mismatch, but it introduces US corporate tax at 21%. The combined effective rate (US corporate tax + Canadian tax on dividends with foreign tax credits) falls in the range of 35-50% — lower than the 50-75% effective rate under the default pass-through classification.

The decision involves comparing:

• Default (pass-through): 50-75% effective rate due to broken treaty credits and FAPI classification
• 8832 election (corporate): 35-50% effective rate with functional treaty credits, but loss of pass-through simplicity

For most Canadian founders with US LLCs earning service income, the 8832 election produces a lower total tax burden. The specific numbers depend on the province of residence, the amount of income, and the type of income the LLC earns.

Alternative: Canadian corporation with US operations

For some Canadian founders, forming a Canadian corporation (federal or provincial) and operating in the US market without a US entity is structurally simpler. Revenue from US clients flows into the Canadian corporation. No US entity means no CRA foreign affiliate rules, no FAPI classification, and no entity mismatch. The trade-off: loss of US banking presence, potential US tax withholding on service income, and perception issues with US clients.

When a Canadian corporation is structurally simpler

SaaS and digital product founders who sell to US customers online, have no US employees, and do not need a US banking presence often find a Canadian corporation avoids the entire CRA classification problem. Revenue arrives in USD through payment processors (Stripe accepts Canadian corporations), is converted to CAD, and is taxed under Canadian corporate rates (12.2% for small business income in Ontario, varying by province).

Founders who need a US presence — those with US clients who require W-9 forms, US bank accounts, or US-based operations — face a structural need for a US entity. In this case, a US LLC with a Form 8832 election or a US C-Corp (which is already classified as a corporation by both countries) are the two paths.

US C-Corp as an alternative

A US C-Corp avoids the classification mismatch entirely because both the IRS and the CRA treat it as a corporation. There is no need for a Form 8832 election. However, the C-Corp introduces its own complexity: US corporate tax at 21%, double taxation on dividends (US corporate tax + Canadian tax on distributions), and more complex annual compliance (Form 1120 instead of a pro forma 1120 with Form 5472).

For Canadian founders who are certain they need a US entity and plan to raise US venture capital, the C-Corp is often the structural default — Stripe Atlas and most accelerators provision C-Corps for this reason.

Section 899: proposed legislation that could affect Canadian structures

In 2026, US lawmakers proposed Section 899, which would impose additional withholding taxes on residents of countries that "discriminate" against US taxpayers. Canada's treatment of US LLCs — classifying them as corporations while the US classifies them as pass-through entities — could be characterized as discriminatory treatment under this proposed legislation. If enacted, Section 899 could add 5% withholding on certain payments to Canadian residents.

Section 899 is a proposal, not enacted law. The legislation has been introduced but has not passed committee as of March 2026. The mechanism:

1. The Treasury Department identifies countries whose tax systems "discriminate" against US persons or entities
2. Additional withholding (up to 5%) is imposed on US-source payments to residents of those countries
3. The withholding applies to dividends, interest, royalties, and potentially service payments

Why Canada could be affected: Canada's refusal to recognize US LLC pass-through treatment — while the US recognizes Canadian corporate structures — creates an asymmetry that could be characterized as discriminatory under Section 899's framework. Canadian founders who form US LLCs are already subject to the CRA's corporate classification. If Section 899 passes, they could face additional US withholding on top of the existing entity mismatch problem.

Current status (March 2026): Proposed. Not enacted. The timeline for committee hearings, markup, and potential passage is uncertain. Canadian founders forming US entities in 2026 face the existing CRA classification issue regardless of Section 899's fate. The proposal adds a layer of uncertainty but does not change the current structural analysis.

Frequently Asked Questions

Can I avoid the CRA tax trap by not reporting my US LLC income in Canada?

No. Canadian residents are taxed on worldwide income. The CRA requires reporting of all foreign affiliates (Form T1134) and all foreign income. Non-reporting carries penalties, and the CRA has information-sharing agreements with the IRS under the Canada-US Tax Treaty and FATCA/CRS reporting. US banks report Canadian account holders to the IRS, which shares information with the CRA.

Do I need to file Form 5472 as a Canadian LLC owner?

Yes. Every foreign-owned single-member LLC is required to file Form 5472 with a pro forma Form 1120 annually. The penalty for non-filing is $25,000 per form, per year. This obligation exists regardless of whether the LLC had revenue. If you funded the LLC's bank account — even with $100 — you had a reportable transaction.

Is a US LLC or Canadian corporation better for a Canadian SaaS founder?

The answer depends on the founder's specific situation. A Canadian corporation avoids the CRA entity mismatch entirely and is taxed at Canadian small business rates (as low as 12.2% federally + provincially). A US LLC with a Form 8832 election provides a US banking presence and US entity status but involves higher compliance costs and a more complex tax profile. Founders who sell digital products to US customers online and have no need for US banking often find the Canadian corporation path structurally simpler.

What Canadian tax forms are required for a US LLC?

Canadian residents who own a US LLC are required to file: T1134 (Information Return Relating to Controlled and Not-Controlled Foreign Affiliates) annually, T1135 (Foreign Income Verification Statement) if the total cost of foreign property exceeds CAD $100,000, and report all foreign income on their personal T1 return. The LLC's US filing obligations (Form 5472 + pro forma 1120) are separate from and in addition to these Canadian obligations.

Can I use a US LLC formation service if I live in Canada?

Yes. Stripe Atlas, Firstbase, and Doola all accept Canadian residents. The formation process is identical to any non-resident formation. The formation services handle articles of organization, EIN, registered agent, and operating agreement. They do not address the CRA tax classification issue — that is a Canadian tax matter that requires a cross-border tax professional familiar with both CRA and IRS rules.

Key Takeaways

• Canada-US is the most common cross-border founder pairing, but the CRA classifies US LLCs as corporations — creating a tax trap where effective rates reach 50-75% due to broken foreign tax credit mechanisms.
• The CRA's classification is not optional and applies regardless of which US state the LLC is formed in. Wyoming and Delaware LLCs are treated identically by the CRA.
• Filing IRS Form 8832 to elect corporate treatment aligns the IRS and CRA classifications, restoring functional treaty credits and reducing the effective combined rate to 35-50%.
• Canadian founders who do not need a US banking presence or US entity status may find a Canadian corporation structurally simpler — avoiding the entity mismatch entirely.
• TD Bank and RBC operate on both sides of the border, giving Canadian founders a banking advantage that other non-resident founders lack.
• Section 899 (proposed, not enacted) could add additional withholding on payments to Canadian residents if the US determines that Canada's LLC classification constitutes discriminatory treatment.

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References

• CRA Interpretation Bulletin IT-343R — Meaning of the term "corporation"
• Canada-US Tax Treaty — Convention between Canada and the United States of America
• IRS Form 8832 — Entity Classification Election
• IRS Publication 3402 — Taxation of Limited Liability Companies
• IRS Form 5472 — Information Return of a 25% Foreign-Owned US Corporation
• IRS Form SS-4 — Application for Employer Identification Number
• Income Tax Act (Canada) — Foreign affiliate and FAPI rules (Part LIX, Sections 91-95)
• CRA Form T1134 — Information Return Relating to Controlled and Not-Controlled Foreign Affiliates
• CRA Form T1135 — Foreign Income Verification Statement
• Wyoming Secretary of State — LLC formation and annual fees
• Delaware Division of Corporations — LLC formation and franchise tax
• Stripe Atlas — US entity formation for internet businesses