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%. The reason is not aggressive taxation by either country individually — it is a structural mismatch in how the IRS and CRA classify the same entity. The IRS treats a single-member LLC (SMLLC) as a disregarded entity, flowing all income directly to the owner's personal return. The CRA treats the same LLC as a foreign corporation, triggering Foreign Accrual Property Income (FAPI) rules, potential dividend treatment, and a foreign tax credit mechanism that does not align with the US classification. The result is double taxation that neither country's system was designed to prevent, because each country is taxing a different thing.

I have watched this specific 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 clients. The 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

The IRS classifies a single-member LLC as a "disregarded entity" by default under the check-the-box regulations (Treasury Regulation 301.7701-3). The LLC does not file its own income tax return. All income, deductions, and credits flow through to the owner's personal tax return — Form 1040-NR for non-resident aliens. The CRA, by contrast, classifies the same LLC as a separate legal entity — either a "foreign affiliate" or a "controlled foreign affiliate" — under the Income Tax Act. This means the CRA views the LLC's income as corporate income sitting inside a foreign entity, not as personal income of the Canadian owner.

The mechanics of this divergence:

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

1. The LLC earns income from US or global clients
2. The income is attributed directly to the owner as if the LLC did not exist
3. If the income is connected to a US trade or business, the owner files Form 1040-NR and pays US federal tax on that income at graduated individual rates (10-37%)
4. If the income is not effectively connected to a US trade or business (e.g., the Canadian operates entirely from Canada with no US presence), there may be no US income tax at all — only the reporting obligation via Form 5472 remains

From the CRA perspective, the same Canadian resident:

1. The CRA sees a US LLC as a separate foreign entity — it does not recognize the "disregarded entity" classification
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 is taxed in the Canadian owner's hands immediately, at the owner's marginal rate, regardless of whether the income was distributed
4. Foreign tax credits for US taxes paid do not offset cleanly because the income categories do not match between the two systems

The core problem: the IRS says "this income belongs to you personally," while the CRA says "this income belongs to a foreign corporation you control." Both countries tax it, and the foreign tax credit mechanism — designed to prevent double taxation — breaks down because the two countries are not taxing the same thing in the same category.

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

A Canadian SaaS founder living in Toronto forms a Wyoming SMLLC, earns $100,000 USD in consulting revenue from US clients, and operates from Canada. The US taxes the income as effectively connected income on Form 1040-NR. Canada taxes it as FAPI through the controlled foreign affiliate rules. The foreign tax credit mismatch produces an effective combined rate of approximately 55-73%, depending on the province and how the CRA classifies the specific income streams.

The following table walks through the math for a founder in Ontario (combined federal + provincial marginal rate of approximately 53.53% on income over CAD $220,000). Exchange rate assumed: 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

This is the optimistic scenario — where the CRA grants a full foreign tax credit for the US tax. In practice, the effective rate can climb to 65-75% because:

1. Income category mismatch. The CRA may classify the income as FAPI (investment income category) while the US treats it as active business income. Foreign tax credits in Canada are calculated separately for business income and non-business income. A credit earned in one category cannot offset tax in the other.

2. Timing mismatch. FAPI is included in Canadian income in the year it is earned, regardless of when it is distributed from the LLC. If the US tax is paid in a different year (e.g., the next April), the credit may not align 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, the surplus calculations often produce results where the underlying tax paid in the US does not fully offset the Canadian tax owing — because 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?

Foreign Accrual Property Income (FAPI) is a Canadian tax concept under Sections 91-95 of the Income Tax Act that forces Canadian residents to include certain types of income earned by their controlled foreign affiliates in their Canadian tax return immediately — without waiting for the income to be distributed. FAPI was designed to prevent Canadians from parking passive investment income in low-tax foreign corporations. The problem for LLC owners: the CRA treats the LLC as a foreign corporation, and many types of income that are "active business income" under IRS rules are classified as FAPI under CRA rules.

What qualifies as FAPI

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

• Investment income — interest, dividends, rents, royalties
• Income from a business carried on in Canada — if the LLC provides services to Canadian clients, the CRA may classify this as a business carried on in Canada, not in the US
• Income from services where the services are 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 avoid FAPI treatment, it needs to qualify as income from an "active business" carried on in the country of the foreign affiliate (in this case, the US). The CRA applies several tests:

1. Where is the business carried on? If the Canadian founder works from Toronto but invoices through a Wyoming LLC, the CRA looks at where the services are actually performed — not where the entity is registered. Services performed in Canada are income from a business carried on in Canada.

2. Does the LLC have substance in the US? An LLC with no US office, no US employees, and no US operations is difficult to characterize as carrying on an active business in the US.

3. Who performs the services? If the sole member (the Canadian resident) performs all the work from Canada, the CRA can argue that the income is attributable to the Canadian's personal services, not to the LLC's business activities in the US.

The FAPI rules are particularly punitive because the income is included in the Canadian owner's personal income at the full marginal rate — not at any preferential corporate rate. There is no deferral. The income is taxed in the year it is earned by the LLC, whether or not it is distributed to the owner.

The deductible amount

Under Section 91(4), a deduction is available for "foreign accrual tax" — the tax paid by the foreign affiliate to a foreign government on the FAPI. However, this deduction is calculated based on what the CRA expects a corporation to have paid, using the "relevant tax factor" formula. Because the IRS taxes the income at personal rates (not corporate rates), and because the IRS does not even see the LLC as a corporation, the deduction calculation often produces a credit that is significantly less than the actual US tax paid.

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

IRS Form 8832 (Entity Classification Election) allows an LLC owner to elect corporate classification for US tax purposes. This aligns the US treatment with how the CRA already views the entity — as a corporation. The LLC then files its own US corporate tax return (Form 1120) at the 21% flat corporate rate. The alignment eliminates the income category mismatch but introduces US corporate tax, dividend withholding tax under the Canada-US Treaty, and loss of pass-through simplicity.

How the election works

By filing Form 8832, the SMLLC elects to be treated as a corporation for US federal tax purposes. The entity 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 often reduces the combined burden by 10-20 percentage points because it aligns the income categories. The CRA receives a dividend from a foreign corporation — exactly the type of income its foreign tax credit system was designed to handle. The credit for underlying corporate tax and withholding tax maps cleanly to the CRA's expectations.

Trade-offs of the corporate election

The last point is notable: with a corporate election, the FAPI rules may still apply to passive income earned by the corporation, but active business income earned by a corporation in the US is generally not FAPI. The corporate election makes it easier to establish that the income is "active business income of a foreign affiliate" rather than personal service income flowing through a disregarded entity.

T1134: Foreign Affiliate Information Return

Canadian residents who own or control a foreign affiliate — including a US LLC — are required to file Form T1134 (Information Return Relating to Controlled and Not-Controlled Foreign Affiliates) with the CRA. The filing deadline is 10 months after the end of the taxpayer's tax year. The penalty for late filing is $25 per day, with a minimum of $100 and a maximum of $2,500 per return, per year. If the CRA issues a demand to file and the taxpayer does not comply, the penalty increases to $1,000 per month, up to $24,000 for a 24-month period.

Who files T1134

Any Canadian resident (individual, corporation, or trust) that owns shares or an interest in a foreign affiliate at any time 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 onerous

The T1134 requires surplus account calculations — exempt surplus, taxable surplus, hybrid surplus — for each foreign affiliate. These calculations track the cumulative tax history of the foreign affiliate over its entire existence, not just the current year. For a simple single-member LLC, this can be disproportionately complex relative to the size of the business.

The form also requires disclosure of all transactions between the Canadian owner and the foreign affiliate — capital contributions, distributions, loans, management fees, and intercompany payments. This is conceptually similar to the IRS Form 5472 requirement, but the CRA version feeds into the surplus account calculations that determine how future distributions will be taxed.

T1135: Foreign Income Verification Statement

Form T1135 (Foreign Income Verification Statement) is required 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 as specified foreign property. The penalties for non-filing are $25 per day, up to $2,500 per year — and the CRA can extend the normal reassessment period by three years for any tax year where T1135 was not filed or was filed 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, the threshold is often met quickly. If the LLC's bank account holds $50,000 USD and the LLC itself is valued at $50,000 USD or more, the combined total exceeds the $100,000 CAD threshold.

T1135 filing levels

The reassessment period extension

The most significant consequence of missing T1135 is not the penalty itself — it is the reassessment period extension. Under Section 152(4)(b.2), the CRA can reassess a taxpayer for any year in which T1135 was not filed (or was filed late) for an additional three years beyond the normal reassessment period. The normal period is three years from the date of the original notice of assessment. With the extension, the CRA has six years to reassess — and if the non-filing is connected to a misrepresentation or fraud, there is no limit.

Canada-US Tax Treaty relief

The Canada-US Tax Convention provides mechanisms to reduce double taxation, primarily through Article VII (Business Profits) and Article XXIV (Elimination of Double Taxation). Article VII provides that business profits of a Canadian resident are taxable only in Canada unless the profits are attributable to a "permanent establishment" (PE) in the US. Article XXIV provides for foreign tax credits. However, the treaty's relief is limited when applied to the SMLLC classification mismatch — the treaty assumes both countries are taxing the same type of income, which they are not in the disregarded entity scenario.

Article VII: Business Profits

Article VII states that the business profits of a resident of one country are taxable only in that country, unless the enterprise carries on business in the other country through a permanent establishment. For a Canadian with a US LLC:

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

The complication: the IRS may still assert that the income is "effectively connected income" (ECI) if the LLC is engaged in a US trade or business, even without a PE as defined by the treaty. The treaty and the Internal Revenue Code use different definitions for when income becomes taxable in the US.

Article XXIV: Elimination of Double Taxation

Article XXIV provides that Canada will allow a deduction from Canadian tax for the income tax paid to the US on profits, income, or gains arising in the US. This is the foreign tax credit mechanism. The article works as intended when:

1. Both countries classify the income the same way
2. Both countries attribute the income to the same taxpayer
3. The tax paid in one country is recognized as an income tax by the other

For the SMLLC scenario, condition 1 fails (the US sees personal income, Canada sees foreign corporate income), condition 2 fails (the US attributes income to the individual, Canada attributes it to the LLC-as-corporation), and condition 3 is uncertain (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 to the Canada-US Tax Treaty (2007) added provisions addressing "fiscally transparent entities," including LLCs. Article IV(7) addresses situations where income is derived through an entity that is treated as fiscally transparent in one country but not the other. The provision is intended to preserve treaty benefits in certain situations, but its application to the SMLLC scenario is narrow and does not eliminate the FAPI classification issue on the Canadian side.

The treaty can reduce the US tax imposed (particularly withholding on dividends if a corporate election is made), but it does not solve the fundamental problem: the CRA's domestic classification of the LLC as a foreign corporation, and the FAPI consequences that follow from that classification.

Frequently asked questions

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

No. The CRA's classification of a US LLC as a foreign corporation is based on the entity type under US law, not on the state of formation. Wyoming, Delaware, New Mexico, and every other state produce the same result from the CRA's perspective. The state of formation affects US state-level taxation and privacy rules, but the CRA treats all US LLCs the same way — as separate legal entities that are not fiscally transparent for Canadian tax purposes. The state comparison analysis covers formation state differences.

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

It is possible in theory but difficult in practice. For income to avoid FAPI classification, it needs to be income from an active business carried on in the US by the foreign affiliate. The CRA examines where the income-producing activities actually occur — not where the entity is registered. A Canadian founder performing services from Canada, invoicing through a US LLC, faces the argument that the active business is being carried on in Canada, not in the US. The LLC would need genuine US operations, employees, or other substance to establish that the active business is in the US.

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) allows taxpayers to come forward and correct past filing failures. Acceptance into the VDP can result in reduced or eliminated penalties, though the underlying tax owing and interest remain payable. The VDP has tightened its criteria in recent years — applications are no longer automatically accepted, and the CRA evaluates each case based on the degree of neglect and whether the taxpayer was aware of the obligations. The T1134 and T1135 penalties accumulate for each year of non-filing.

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

The structural comparison depends on where the income originates, where the founder resides, and what the founder's tax residency status is. A Canadian corporation (CCPC — Canadian-Controlled Private Corporation) with a US subsidiary or branch operation eliminates the FAPI problem because the income is earned by a Canadian entity. The small business deduction provides a 9% federal corporate rate on the first $500,000 of active business income. The trade-off: a Canadian corporation may create US tax 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 rather than W-9s. The entity choice involves mapping income sources, client locations, banking requirements, and both countries' tax rules simultaneously.

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

A multi-member LLC changes the IRS classification — a multi-member LLC is treated as a partnership by default under the check-the-box regulations, not as a disregarded entity. However, the CRA's treatment of the entity as a foreign corporation does not change based on the number of members. The CRA still treats the US LLC as a separate legal entity. What changes is the ownership percentage and 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% or more ownership). The 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 the LLC's income in their Canadian tax return immediately, at full marginal rates, regardless of whether the income is 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 for the LLC aligns the entity classification between the two countries. This introduces US corporate tax at 21% and dividend withholding, but the foreign tax credit mechanism functions as designed in this configuration.
• T1134 (Foreign Affiliate Information Return) and T1135 (Foreign Income Verification Statement) are separate filing obligations with their own penalty regimes. Missing them extends the CRA's reassessment period by three years.
• The Canada-US Tax Treaty provides partial relief through foreign tax credit and business profits provisions, but it does not override the CRA's domestic classification of the LLC as a corporation.
• The effective combined tax rate for a Canadian-owned US SMLLC ranges from approximately 50% to 75%, depending on income type, province of residence, and whether the foreign tax credit claims are accepted by the CRA.

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