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, USMCA access, shared commercial language. The US is the obvious expansion market for Canadian founders.

But the CRA treats US LLCs differently from the IRS. That mismatch creates a tax trap where effective rates hit 50-75% on the same income. A US LLC that's tax-efficient under US rules becomes a foreign corporation under Canadian rules.

I've run US entities for nearly two decades and watched Canadian founders walk into this trap over and over. Formation is easy. The tax consequences of picking the wrong entity type are not.

Quick overview: forming a US LLC from Canada

Formation works the same as any non-resident LLC. The CRA classification issue is what makes this different, and it's the decision that actually matters.

Step 1: Choose a state — Wyoming vs Delaware

The CRA classifies all US LLCs as corporations regardless of which state issued the articles. So the state choice is purely about cost, not taxes.

Wyoming at $60/yr or Delaware at $300/yr. Those are your two real options.

Wyoming wins on price. The $60/yr annual fee and single-member charging order protection (Wyoming Statutes section 17-29-503) make it the obvious default. Delaware's $300/yr buys access to the Court of Chancery, which matters for multi-party disputes but not for a single-member LLC. The full state comparison covers all five commonly cited states.

Stripe Atlas only provisions Delaware. Firstbase and Doola offer both. The formation service comparison breaks down three-year total cost.

Step 2: Form the LLC

Formation takes 1-7 business days. No Canadian-specific requirements exist at the state level.

Two paths:

Formation service. Stripe Atlas ($500), Firstbase ($399), or Doola ($297) handle articles of organization, operating agreement, EIN, and registered agent. Most Canadian founders go this route because you also get a US mailing address and sometimes banking introductions.

Direct filing. File with the secretary of state yourself (Wyoming or Delaware). $100 (Wyoming) or $90 (Delaware). You'll still need a registered agent at $100-200/yr.

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 (your Canadian address works)

The operating agreement isn't filed with the state, but banks, payment processors, and the IRS all want to see it. Formation services include a template. Direct filers can get one from the state bar association or an attorney.

Step 3: Get an EIN

The EIN is the LLC's US tax ID. It's free. Canadian founders without an SSN get it through Form SS-4 by fax (4 days to 4 weeks), phone at (267) 941-1099 (same day), or through a formation service (1-6 weeks).

Full process: EIN without SSN guide. What Canadian founders should know:

• Phone works well from Canada. The IRS international line at (267) 941-1099 takes Canadian calls. Long-distance charges apply. Call between 6:00 AM and 11:00 AM Eastern to avoid long holds.
• Canadian passport replaces SSN. On Form SS-4 line 7b, use your passport number where it asks for SSN or ITIN.
• Canadian address is fine. No US address needed for the EIN application.
• Formation services include this. Stripe Atlas, Firstbase, and Doola all file SS-4 as part of their package.

Step 4: Open a US bank account

Canadian founders have a real banking advantage here. TD Bank and RBC operate on both sides of the border. If you already bank with TD Canada Trust or RBC Royal Bank, that existing relationship makes opening a US business account much easier than it is for other non-resident founders.

Banking options for Canadian LLC owners

TD Bank. Top-ten US bank, same parent as TD Canada Trust. If you have a TD Canada Trust account, opening a US business account is noticeably smoother. Over 1,100 branches in the eastern US.

RBC Bank (US). Built specifically for Canadians doing business in or living in the US. The referral path from RBC Royal Bank is well-established. Primarily southeastern US branches.

Mercury. The default for non-resident LLC owners who want online-only banking. No branch visits. Mercury vs Wise vs Relay comparison covers fees and trade-offs. USD-only, FDIC-insured.

Wise Business. Especially useful for Canadians because it handles both CAD and USD natively. USD revenue converts to CAD at mid-market rates with a transparent 0.57%+ fee, which beats the opaque FX markups on bank wires. Not FDIC-insured; funds are safeguarded, not deposited.

What you'll need:

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

This is the section that matters most. The full CRA tax trap breakdown for Canadian founders covers this in detail, but here is the summary.

The CRA does not recognize US LLC pass-through treatment. Under Canadian tax law, a US LLC is a corporation. Full stop. The IRS sees pass-through income; the CRA sees corporate income. The Canada-US Tax Treaty was not built to reconcile this mismatch.

How the IRS sees a single-member LLC

The IRS treats a single-member LLC as a "disregarded entity" (IRS Publication 3402). Income flows through to the owner's personal return. No corporate-level tax. This is the whole reason US founders pick 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. Their position: an LLC is a separate legal entity, distinct from its owner, therefore a corporation for Canadian tax purposes. Doesn't matter what the US thinks.

Here's what that mismatch looks like in practice:

The double taxation mechanics

Here's what actually happens:

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

2. The CRA also taxes the $100,000. The CRA classifies it as FAPI (foreign accrual property income) or as a deemed dividend on distribution. FAPI gets taxed at the owner's full marginal rate — up to 53.53% in Ontario — on an accrual basis. That means you owe the tax even if the money stays in the LLC.

3. Foreign tax credits don't fully offset. The treaty's credit mechanism assumes both countries classify the entity the same way. They don't. So the credits don't align. Effective tax rates: 50-75% on the same income.

4. Accrual basis means cash flow pain. Even if the LLC retains everything and distributes nothing, the Canadian owner owes Canadian tax in the year the income is earned. Tax on money you haven't received.

Who gets hit hardest

Solo founders earning service income (consulting, SaaS, freelancing). Under the Income Tax Act, service income from a controlled foreign affiliate that doesn't employ more than five full-time employees is classified as FAPI. A single-member LLC with one founder will almost always trip this rule.

The fix: elect corporate treatment with the IRS

File IRS Form 8832 to elect corporate treatment. This makes the IRS treat the LLC as a corporation, which is what the CRA already thinks it is. When both countries agree on classification, the treaty's foreign tax credit mechanism works. The trade-off: you lose pass-through treatment and pay 21% US corporate tax.

How Form 8832 works

Form 8832 ("Entity Classification Election") lets an LLC elect corporate treatment for US federal tax purposes. Often called "checking the box." The election can be effective retroactively up to 75 days before filing.

After the election:

The trade-off

You lose pass-through simplicity and take on 21% US corporate tax. But the combined effective rate (US corporate + Canadian dividends with working tax credits) lands at 35-50%, down from the 50-75% you'd face under the default.

• Default (pass-through): 50-75% effective rate. Broken treaty credits, FAPI classification.
• 8832 election (corporate): 35-50% effective rate. Functional credits, more compliance.

For most Canadian founders earning service income through a US LLC, the 8832 election produces a lower total tax bill. The exact numbers depend on province, income amount, and income type.

Alternative: Canadian corporation with US operations

For some Canadian founders, forming a Canadian corporation and selling into the US without a US entity is the simpler path. Revenue from US clients flows into the Canadian corp. No US entity means no foreign affiliate rules, no FAPI, no entity mismatch.

The trade-off: no US banking presence, possible US tax withholding on service income, and some US clients may prefer dealing with a US entity.

When a Canadian corporation works better

If you sell SaaS or digital products to US customers online, have no US employees, and don't need a US bank account, a Canadian corporation sidesteps the entire CRA classification problem. Revenue arrives in USD through Stripe (which accepts Canadian corps), converts to CAD, and gets taxed at Canadian small business rates (as low as 12.2% in Ontario). Alternatively, Merchant of Record platforms like Paddle handle VAT and sales tax globally — the Stripe vs Paddle vs Lemon Squeezy comparison covers when that trade-off makes sense for Canadian founders who want to skip the US entity entirely.

If you need W-9 forms, a US bank account, or US-based operations, you need a US entity. That means a US LLC with Form 8832 or a US C-Corp.

US C-Corp as an alternative

A C-Corp avoids the classification mismatch because both countries already treat it as a corporation. No Form 8832 needed. But it brings its own weight: 21% US corporate tax, double taxation on dividends, and heavier compliance (full Form 1120 instead of a pro forma 1120 with Form 5472).

If you're raising US venture capital, the C-Corp is the default. Stripe Atlas and most accelerators provision C-Corps for exactly this reason.

Section 899: the retaliatory tax that didn't pass (but almost did)

In 2025, US lawmakers proposed Section 899 as part of H.R. 1, which would have imposed additional withholding taxes on residents of countries that "discriminate" against US taxpayers. The provision passed the House Ways and Means Committee in May 2025 but was dropped from the bill during House-Senate negotiations in July 2025. It is not law.

The mechanism Section 899 would have used:

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 was a potential target: Canada's refusal to recognize US LLC pass-through treatment — while the US recognizes Canadian corporate structures — creates an asymmetry that could have been characterized as discriminatory under Section 899's framework. Canada's Digital Services Tax (enacted 2024) was another trigger.

Why it matters even though it didn't pass: The political dynamics that produced Section 899 haven't changed. Canada's DST is still in effect, and OECD Pillar One negotiations haven't produced a final agreement. A similar provision could resurface. For a deeper analysis, see the Canada-US tax treaty and Section 899 guide.

Frequently Asked Questions

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

No. Canadian residents owe tax on worldwide income. The CRA requires reporting of all foreign affiliates (Form T1134) and all foreign income. The CRA and IRS share information under the Canada-US Tax Treaty and FATCA/CRS reporting. US banks report Canadian account holders to the IRS. The IRS shares that with the CRA. Non-reporting carries penalties.

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

Yes. Every foreign-owned single-member LLC must file Form 5472 with a pro forma Form 1120 annually. The penalty for not filing is $25,000 per form, per year. This applies even if the LLC had zero revenue. If you put $100 into the LLC's bank account, that's a reportable transaction.

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

Depends on whether you need a US presence. A Canadian corporation avoids the CRA entity mismatch entirely and gets taxed at small business rates (as low as 12.2%). A US LLC with Form 8832 gives you US banking and entity status but costs more to maintain and complicates your tax picture. If you sell digital products online and don't need a US bank account, the Canadian corp is the simpler path.

What Canadian tax forms are required for a US LLC?

T1134 (foreign affiliates) annually. T1135 (foreign income verification) if foreign property exceeds CAD $100,000. All foreign income reported on your personal T1. These are on top of the LLC's US obligations (Form 5472 + pro forma 1120).

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

Yes. Stripe Atlas, Firstbase, and Doola all accept Canadian residents. Same process as any non-resident formation. They handle articles of organization, EIN, registered agent, and operating agreement. They do not address CRA tax classification. That's a Canadian tax matter and requires a cross-border professional who knows both systems.

Key Takeaways

• The CRA classifies US LLCs as corporations regardless of state. This creates effective tax rates of 50-75% due to broken treaty credit mechanisms.
• Filing IRS Form 8832 aligns both countries' classifications and drops the combined rate to 35-50%.
• Canadian founders who don't need US banking or a US entity should seriously consider a Canadian corporation instead. It sidesteps the mismatch entirely.
• TD Bank and RBC operate cross-border, giving Canadian founders a banking advantage other non-residents lack.
• Section 899 (proposed May 2025, dropped July 2025) didn't pass, but the underlying Canada-US tax friction hasn't been resolved. Similar provisions could return.

Check your cross-border risk profile →

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