CRA and US LLCs: The Tax Classification Trap Canadians Face

A Canadian resident who forms a single-member Wyoming LLC and earns $100,000 USD through it can face an effective combined tax rate between 50% and 75%. Not because either country is taxing aggressively on its own. The IRS treats the LLC as invisible — income flows straight to the owner's personal return. The CRA treats that same LLC as a foreign corporation. Two countries, same entity, completely different tax logic. The foreign tax credit system, which exists to prevent double taxation, fails here because the two sides aren't even taxing the same thing.

I've watched this trap hit Canadian founders who followed standard US formation advice: form a Wyoming or Delaware LLC, get an EIN, open a Mercury or Relay account, start invoicing. That advice is correct for a US-resident founder. For a Canadian resident, it creates one of the most expensive structural mismatches in cross-border operations.

How the CRA/IRS classification mismatch works

Under the check-the-box regulations (Treasury Regulation 301.7701-3), the IRS classifies a single-member LLC as a "disregarded entity" by default. The LLC doesn't file its own return. Everything flows to the owner's Form 1040-NR. The CRA looks at that same LLC and sees a separate foreign corporation under the Income Tax Act. Corporate income sitting inside a foreign entity — not personal income of the Canadian owner.

Here's how it plays out in practice:

From the IRS perspective, a Canadian resident with a US SMLLC:

1. The LLC earns income from US or global clients
2. All of it is attributed directly to the owner, as if the LLC didn't exist
3. Income connected to a US trade or business goes on Form 1040-NR, taxed at graduated rates (10-37%)
4. Income not effectively connected to a US trade or business (founder operates entirely from Canada, no US presence) may not trigger US income tax at all. Only the Form 5472 reporting obligation remains

From the CRA perspective, the same Canadian resident:

1. The CRA sees a US LLC as a separate foreign entity. It doesn't recognize the "disregarded entity" classification at all
2. The LLC's income is treated as income of a foreign corporation owned by a Canadian resident
3. If the income qualifies as Foreign Accrual Property Income (FAPI), it gets taxed in the Canadian owner's hands immediately, at full marginal rates, whether or not the money was distributed
4. Foreign tax credits for US taxes paid don't offset cleanly because the income categories don't match between the two systems

The IRS says "this income belongs to you personally." The CRA says "this income belongs to a foreign corporation you control." Both countries tax it. The foreign tax credit mechanism breaks down because they're not taxing the same thing in the same category.

Worked example: $100,000 USD through a Wyoming LLC

Say a Canadian SaaS founder in Toronto forms a Wyoming SMLLC and earns $100,000 USD in consulting revenue from US clients while working from Canada. The US taxes it as effectively connected income on Form 1040-NR. Canada taxes it as FAPI through the controlled foreign affiliate rules. The credit mismatch pushes the effective combined rate to roughly 55-73%, depending on province and how the CRA classifies each income stream.

Here's the math for an Ontario founder (combined federal + provincial marginal rate of ~53.53% on income over CAD $220,000). Exchange rate: 1 USD = 1.36 CAD.

US tax treatment

The founder files Form 1040-NR. The income flows through the disregarded LLC directly to the 1040-NR. Form 5472 and a pro forma Form 1120 are also filed.

CRA tax treatment

Combined burden

That's the optimistic scenario, where the CRA grants a full foreign tax credit for US tax paid. In practice, the rate climbs to 65-75% because of three compounding problems:

1. Income category mismatch. The CRA may classify the income as FAPI (investment income category) while the US treats it as active business income. Canada calculates foreign tax credits separately for business and non-business income. A credit in one category can't offset tax in the other.

2. Timing mismatch. FAPI is included in Canadian income the year it's earned, whether or not it's distributed from the LLC. If US tax is paid the following April, the credit may not line up with the Canadian inclusion year.

3. Surplus account complexity. The CRA uses "exempt surplus," "taxable surplus," and "hybrid surplus" accounts to track taxes paid by foreign affiliates. For US LLCs, these calculations regularly produce results where the US tax paid doesn't fully offset the Canadian tax owed. The CRA computes the credit based on the corporate tax it expects a foreign corporation to have paid, not the personal tax the IRS actually charged.

What is FAPI and why does it apply to US LLCs?

FAPI is a Canadian tax concept under Sections 91-95 of the Income Tax Act. It forces Canadian residents to include certain income earned by controlled foreign affiliates on their Canadian return immediately, without waiting for distribution. The original target was Canadians parking passive investment income in low-tax foreign corporations. The problem for LLC owners: the CRA treats the LLC as a foreign corporation, and income that the IRS considers "active business income" often gets classified as FAPI by the CRA.

What qualifies as FAPI

FAPI captures income from property and business income other than "active business" income carried on in the foreign affiliate's country. Under Section 95(1), it includes:

• Investment income — interest, dividends, rents, royalties
• Income from a business carried on in Canada — if the LLC serves Canadian clients, the CRA may classify this as a Canadian business, not a US one
• Income from services performed by the Canadian owner in Canada, even if invoiced through the US LLC
• Capital gains from disposition of certain types of property

Why "active business income" is hard to establish

For income to escape FAPI, it must qualify as "active business" income carried on in the US. The CRA applies three tests, and most solo founders fail all of them:

1. Where is the business carried on? If you work from Toronto but invoice through a Wyoming LLC, the CRA looks at where services are actually performed, not where the entity is registered. Work done in Canada = business carried on in Canada.

2. Does the LLC have substance in the US? No US office, no US employees, no US operations. That's most solo founders. The CRA has a hard time calling that an active US business.

3. Who performs the services? If the sole member does all the work from Canada, the CRA argues the income is attributable to the Canadian's personal services, not to the LLC's activities in the US.

The FAPI rules are punitive. Income gets included at your full marginal rate, not a corporate rate. No deferral. Taxed the year it's earned by the LLC, distributed or not. I've seen founders who didn't even take money out of the LLC get hit with a Canadian tax bill on income sitting in a US bank account.

The deductible amount

Under Section 91(4), you can deduct "foreign accrual tax" paid by the foreign affiliate to a foreign government. But the deduction is calculated based on what the CRA expects a corporation to have paid, using the "relevant tax factor" formula. The IRS taxed the income at personal rates, not corporate rates. It doesn't even see the LLC as a corporation. So the deduction calculation regularly produces a credit far smaller than what you actually paid in US tax.

The Form 8832 election: aligning with the CRA by electing corporate treatment

IRS Form 8832 lets you elect corporate classification for US tax purposes. This aligns the US treatment with how the CRA already views the entity. The LLC files its own Form 1120 at the 21% flat corporate rate. The category mismatch disappears, but you pick up US corporate tax, dividend withholding under the Canada-US Treaty, and the loss of pass-through simplicity.

How the election works

With Form 8832 filed, the SMLLC is treated as a corporation for US federal tax purposes. It then:

1. Files its own Form 1120 (US Corporate Income Tax Return)
2. Pays US corporate tax at the flat 21% rate
3. When distributing profits to the Canadian owner, the distribution is treated as a dividend
4. The dividend is subject to withholding tax — reduced to 15% (or 5% for significant holdings) under Article X of the Canada-US Tax Treaty

Math comparison: disregarded vs. corporate election

The corporate election typically cuts the combined burden by 10-20 percentage points. Why? Because the CRA receives a dividend from a foreign corporation, exactly the income type its foreign tax credit system was built for. The credit for underlying corporate tax and withholding maps cleanly to the CRA's expectations.

Trade-offs of the corporate election

That last point matters. With a corporate election, FAPI rules may still apply to passive income, but active business income earned by a US corporation is generally not FAPI. The corporate wrapper makes it far easier to argue the income is "active business income of a foreign affiliate" rather than personal service income flowing through an invisible entity.

T1134: Foreign Affiliate Information Return

Canadian residents who own or control a foreign affiliate, including a US LLC, must file Form T1134 with the CRA. Deadline: 10 months after the end of your tax year. Late filing penalty: $25/day, minimum $100, maximum $2,500 per return per year. If the CRA issues a demand and you still don't file, that jumps to $1,000/month, up to $24,000 over 24 months.

Who files T1134

Any Canadian resident (individual, corporation, or trust) that owns an interest in a foreign affiliate at any point during the tax year. For LLC purposes:

• A 100% ownership interest in a US SMLLC constitutes a "controlled foreign affiliate" (CFA)
• A CFA is defined under Section 95(1) of the Income Tax Act — broadly, a foreign affiliate in which the Canadian resident owns more than 50% of the voting shares (or equivalent interest)

Filing details

What makes T1134 painful

T1134 requires surplus account calculations (exempt, taxable, hybrid) for each foreign affiliate. These track the cumulative tax history of the affiliate over its entire existence, not just the current year. For a one-person LLC doing $100K in consulting, the compliance burden is wildly disproportionate.

The form also requires disclosure of all transactions between you and the foreign affiliate: capital contributions, distributions, loans, management fees, intercompany payments. Similar in concept to the IRS Form 5472 requirement, but the CRA version feeds into surplus account calculations that determine how future distributions get taxed.

T1135: Foreign Income Verification Statement

Form T1135 kicks in when a Canadian resident holds "specified foreign property" with a total cost exceeding $100,000 CAD at any point during the year. A US LLC interest counts. Penalties: $25/day, up to $2,500/year. But the real risk is that the CRA can extend its reassessment period by three years for any tax year where T1135 was missing or late.

What counts as specified foreign property

Under Section 233.3 of the Income Tax Act, specified foreign property includes:

• Interests in non-resident corporations (including US LLC membership interests)
• Foreign bank accounts
• Foreign real property held for investment (not personal use)
• Foreign securities and bonds
• Any other property situated outside Canada

For a founder with a US LLC and a US bank account, hitting the threshold is easy. $50,000 USD in the bank account plus $50,000 USD in LLC value already exceeds $100,000 CAD.

T1135 filing levels

The reassessment period extension

The penalty isn't the real danger. Under Section 152(4)(b.2), missing T1135 lets the CRA reassess you for an additional three years beyond the normal period. Normal reassessment window: three years from the original notice of assessment. With the extension: six years. And if the non-filing connects to misrepresentation or fraud, there's no limit at all.

Canada-US Tax Treaty relief

The Canada-US Tax Convention has two main tools: Article VII (business profits taxable only in the country of residence unless there's a permanent establishment) and Article XXIV (foreign tax credits). In theory, these prevent double taxation. In practice, the treaty assumes both countries are taxing the same type of income. With a disregarded LLC, they aren't.

Article VII: Business Profits

Article VII says business profits of a resident of one country are taxable only in that country, unless there's a permanent establishment in the other. For a Canadian with a US LLC:

• No US PE (founder operates from Canada, LLC has no US office or employees): business profits are taxable only in Canada. US taxing right is limited.
• US PE exists (LLC has a fixed place of business in the US, or the founder regularly concludes contracts there): the US can tax profits attributable to that PE.

The wrinkle: the IRS may still assert "effectively connected income" if the LLC is engaged in a US trade or business, even without a PE under the treaty's definition. The treaty and the Internal Revenue Code don't use the same test for when income becomes US-taxable.

Article XXIV: Elimination of Double Taxation

Article XXIV lets Canada deduct from Canadian tax for income tax paid to the US. The mechanism works when both countries classify the income the same way, attribute it to the same taxpayer, and recognize each other's tax as an income tax.

For the SMLLC scenario, all three conditions fail. The US sees personal income; Canada sees foreign corporate income. The US attributes it to the individual; Canada attributes it to the LLC-as-corporation. And the US personal income tax paid on pass-through income may not qualify as "underlying foreign tax" in the CRA's surplus account calculations.

Fifth Protocol — Article IV(7)

The Fifth Protocol (2007) added provisions for "fiscally transparent entities," including LLCs. Article IV(7) addresses income derived through an entity that's transparent in one country but not the other. The provision preserves some treaty benefits, but its application to the SMLLC scenario is narrow and doesn't eliminate FAPI on the Canadian side.

The treaty can reduce US tax, especially withholding on dividends if you've made a corporate election. It does not solve the underlying problem: the CRA classifying the LLC as a foreign corporation, with all the FAPI consequences that follow.

Frequently asked questions

Does forming the LLC in a specific state change the CRA treatment?

No. The CRA's classification is based on the entity type under US law, not the state of formation. Wyoming, Delaware, New Mexico — they all produce the same result from the CRA's perspective. State of formation affects US state-level taxation and privacy, but the CRA treats all US LLCs as separate legal entities with no fiscal transparency. See the state comparison analysis for formation state differences.

Can a Canadian founder avoid FAPI by having the LLC earn only "active business income"?

Possible in theory. Very hard in practice. The CRA examines where income-producing activities actually occur, not where the entity is registered. A Canadian founder performing services from Canada and invoicing through a US LLC faces the argument that the active business is in Canada, not the US. The LLC would need genuine US operations, employees, or other substance to establish a US active business.

What happens if a Canadian founder already has a US LLC and has not been filing T1134 or T1135?

The CRA's Voluntary Disclosures Program (VDP) lets taxpayers come forward and correct past filing failures. Acceptance can reduce or eliminate penalties, though the underlying tax and interest remain payable. The VDP has tightened significantly. Applications aren't automatically accepted anymore. The CRA evaluates each case based on the degree of neglect and whether the taxpayer knew about the obligations. T1134 and T1135 penalties accumulate for each year of non-filing, so the longer you wait, the worse it gets.

Is it better to form a Canadian corporation instead of a US LLC?

It depends on where income originates, where the founder resides, and their tax residency status. A CCPC (Canadian-Controlled Private Corporation) with a US subsidiary or branch eliminates the FAPI problem because income is earned by a Canadian entity. The small business deduction gives you a 9% federal corporate rate on the first $500,000 of active business income. The trade-off: a Canadian corporation may trigger US filing obligations (Form 1120-F) if it carries on business in the US, and US clients may issue 1099s or require W-8BEN-E forms instead of W-9s. There's no clean answer without mapping income sources, client locations, banking needs, and both countries' tax rules at the same time.

Does the CRA classification change if the LLC has multiple members?

A multi-member LLC changes the IRS side. The IRS treats it as a partnership by default under check-the-box, not a disregarded entity. But the CRA doesn't care about member count. It still treats the LLC as a separate legal entity. What changes is the ownership percentage: whether the LLC qualifies as a "controlled foreign affiliate" (more than 50% owned by the Canadian resident and related persons) or merely a "foreign affiliate" (10%+ ownership). FAPI rules apply differently depending on the level of control.

Key takeaways

• The CRA classifies US LLCs as foreign corporations. The IRS classifies single-member LLCs as disregarded entities. This mismatch is the root of the double taxation problem.
• FAPI rules force Canadian residents to include LLC income on their Canadian return immediately, at full marginal rates, whether or not the money was distributed.
• The foreign tax credit mechanism breaks down because the two countries are taxing different types of income (personal vs. corporate) attributed to different taxpayers (individual vs. entity).
• Filing Form 8832 to elect US corporate treatment aligns entity classification between the two countries. You pick up US corporate tax at 21% and dividend withholding, but the foreign tax credit system actually works as designed.
• T1134 and T1135 are separate filing obligations with their own penalty regimes. Missing them extends the CRA's reassessment window by three years.
• The Canada-US Tax Treaty provides partial relief but does not override the CRA's domestic classification of the LLC as a corporation.
• Effective combined rate: 50% to 75%, depending on income type, province, and whether the CRA accepts the foreign tax credit claims.

References

• Income Tax Act (Canada), Sections 91-95 — Foreign Accrual Property Income
• Income Tax Act (Canada), Section 233.3 — T1135 Foreign Income Verification
• Income Tax Act (Canada), Section 152(4)(b.2) — Extended Reassessment Period
• CRA Interpretation Bulletin IT-343R — Meaning of the Term "Corporation"
• CRA Form T1134 — Information Return Relating to Controlled and Not-Controlled Foreign Affiliates
• CRA Form T1135 — Foreign Income Verification Statement
• Canada-US Tax Convention (including Fifth Protocol)
• IRS Form 8832 — Entity Classification Election
• Treasury Regulation 301.7701-3 — Classification of Certain Business Entities
• IRS Form 5472 — Information Return of a 25% Foreign-Owned US Corporation