CRA vs IRS LLC Mismatch: A Canadian Owner Decision Guide

If you formed a U.S. LLC as a Canadian resident, you have inherited a structural conflict between two tax authorities. The IRS treats your LLC as pass-through. The CRA treats it as a foreign corporation. The treaty does not fully resolve this. This guide walks through the four practical responses, when each fits, and the timing trap most owners only learn about after they miss it.

30-second triage

You have an LLC mismatch problem worth fixing if (a) the LLC has or will have meaningful U.S. effectively connected income, (b) you intend to retain earnings inside the LLC for more than one tax year, or (c) you are claiming Canada-U.S. treaty benefits on dividends, interest, or royalties flowing through the LLC. If the LLC has no U.S. ECI, you distribute everything currently to yourself, and your income type is plain business profit, the mismatch is real but its dollar impact may be small. The fix is not free either: Form 8832 has a 5-year lockup, and Canadian alternatives like a ULC carry their own provincial governance.

What the mismatch actually does to you

The IRS sees your single-member LLC as a disregarded entity. Income flows to your personal U.S. tax return, often as zero if you have no U.S. business activity (no Effectively Connected Income, ECI).

The CRA sees the same LLC as a foreign corporation under Canadian law. That changes three things:

1. The pass-through nature is not respected. Income is recognized when the LLC distributes, not when it earns
2. The Foreign Tax Credit (FTC) gets harder. CRA will not credit U.S. tax you paid as an individual against tax CRA assesses on a corporation
3. The Canada-U.S. tax treaty Article XXIX-A (Limitation on Benefits) restricts what relief is available

The practical result, for many Canadian-resident solo LLC owners with no U.S. ECI: zero U.S. tax during the year, full Canadian tax on distributions, no FTC offset because there was no U.S. tax to credit. The "tax savings" of an LLC dissolves on the Canadian side.

Worked example: $100K LLC profit, Polaris-style

The Polaris Tax Counsel example most cross-border accountants reference. Stylized, but the directional math is real.

That is the worst case the "do not form an LLC" advice is built around. It assumes a Canadian-resident operator with U.S. ECI, no Form 8832 election, no treaty positioning, and no FTC planning. Each of those assumptions can be flipped through the four options below.

The four options Canadian owners actually have

There is no universally correct answer. The right choice depends on your U.S. activity level, your existing Canadian corporate structure, and how soon income is expected.

Article IV(7)(b) deeper: why the treaty does not save you

The fifth protocol to the Canada-U.S. Tax Treaty (2008) added Article IV(7), the "hybrid entity" provision. Subsection (b) is the one that bites Canadian LLC owners most often.

Article IV(7)(b) generally denies treaty benefits to income flowing through a fiscally transparent entity in one country to a resident of the other. A U.S. LLC is fiscally transparent in the U.S. (disregarded SMLLC or partnership). It is not fiscally transparent in Canada. The treaty therefore views income flowing from a U.S. payer through your LLC to you as if the LLC blocks treaty access.

Practical effects:

• Dividends paid into your LLC by U.S. corporations: the 5%/15% reduced rates under Article X may not apply. Default 30% withholding can stick
• Interest paid into your LLC: Article XI's 0% (or reduced) rate may be denied. Default 30% withholding
• Royalties paid into your LLC: Article XII rates may not apply

The 2008 protocol added an exception: if the underlying income would have qualified for treaty rates had you earned it directly without the LLC, the rates can be preserved. Filed via Form 8833 (Treaty-Based Return Position Disclosure) attached to Form 1040-NR. The position is technical, the IRS scrutiny is real, and Competent Authority (Mutual Agreement Procedure) is the backstop if treaty access is disputed.

Form 8832 C-Corp election removes Article IV(7)(b) entirely because the LLC is no longer fiscally transparent on the U.S. side. The Canadian ULC alternative also avoids it because the entity is Canadian-resident from the start.

The 75-day timing trap on Form 8832

If you decide a C-Corp election is the right fix, the IRS rule that catches the most people is the 75-day window.

Form 8832 is effective on a date you specify, but that date can be no more than 75 days before the form is filed. In practice, that means:

• If you formed the LLC on day 0 and want the election effective from formation, you must file 8832 by day 75
• If you miss the 75-day window, the election can only be effective from a later date (often the start of the next tax year)

Late elections are not permanently lost. Rev. Proc. 2009-41 allows late entity classification elections within 3 years and 75 days of the intended effective date, if you can show reasonable cause. The procedure requires a written explanation, supporting facts, and signatures from all members. Late relief is granted often, but it is not automatic.

A decision walkthrough for a typical Canadian solo owner

Imagine a Canadian resident with a brand-new U.S. LLC, no employees, doing remote consulting work for U.S. clients. Year-one revenue around CAD 80,000. No Canadian corporation yet.

The decision tree usually runs like this:

1. Is there meaningful U.S. ECI? Remote services to U.S. clients from Canada generally produce no ECI. U.S. tax is zero
2. Is U.S. tax zero? If yes, FTC has nothing to credit. The 8832 C-Corp election adds 21% U.S. tax that may or may not be creditable depending on CRA position. Often net negative
3. Is there a Canadian corporation? No. So inserting a CCPC is a future decision, not a current one
4. Outcome: Most often, "do nothing" plus accurate Canadian-side reporting is the lowest-friction starting point. Revisit when revenue grows or U.S. activity expands

The same person, two years later, with CAD 300,000 revenue and growing U.S. presence, may flip to option 1 or 2. The mismatch fix is not a one-time decision. It evolves with the business.

What gets reported on the Canadian side either way

Regardless of which option you choose, three Canadian-side filings come up for almost every Canadian-resident LLC owner:

• T1135 if specified foreign property exceeds CAD 100,000 at any point in the year
• T1134 if the LLC is treated as a foreign affiliate (often relevant after the 8832 election or a CCPC structure)
• Personal tax return with proper recognition of LLC income in line with how CRA classifies the entity

The mismatch shapes how income is reported, but the underlying disclosure obligations do not disappear.

What we see go wrong

Three patterns repeat:

• LLC owners read about the 8832 election late, miss the 75-day window, and assume they are stuck. Rev. Proc. 2009-41 is often available
• Owners assume the FTC will offset everything. It will not, if the U.S. side produced zero tax
• Owners conflate U.S. compliance (5472, 1120 pro forma) with Canadian compliance (T1135, T1134, personal return). Both sets exist separately

Frequently asked questions

Is the mismatch always a problem, or only in certain scenarios?

Only in certain scenarios. The mismatch is structural and always present, but its dollar impact depends on whether the LLC has U.S. effectively connected income, whether earnings are retained vs distributed, and what type of income is involved. A Canadian SaaS founder with no U.S. permanent establishment, distributing everything currently, may see minimal practical impact. A Canadian Amazon FBA seller with U.S. warehouse PE retaining earnings inside the LLC sees the worst case.

If I file Form 8832 to elect C-Corp status, does CRA recognize the election?

CRA recognizes the election in the sense that both sides now classify the entity as a corporation. The election fixes the timing-of-recognition mismatch and restores Foreign Tax Credit matching. CRA still treats the entity as a non-resident corporation, which means T1134 (foreign affiliate) reporting kicks in once you own 10% or more, and dividends paid out are foreign dividends on the Canadian side.

Can I undo a Form 8832 election if I made the wrong choice?

Not for 60 months. Treasury Reg. §301.7701-3(c)(1)(iv) imposes a 5-year lockup. Within that period, you cannot voluntarily change the election. Earlier change is possible only if 50% or more of the ownership changes hands, or with rare IRS consent. This is the main reason the election decision is worth deliberation rather than a default response.

What happens if I do nothing and just accept the mismatch?

You file Form 5472 + Pro Forma 1120 each year on the U.S. side, file T1135 (and possibly T1134) on the Canadian side, and report income on your Canadian personal tax return when distributions occur. You may pay more total tax than under an election, but the compliance cost is lower. For early-stage LLCs with little income, "do nothing" is often the right answer until revenue grows.

Where to go from here

Pick a path based on actual U.S. activity, not the theoretical best structure. If you are early-stage with little U.S. income, the cost of a wrong election can exceed the cost of doing nothing. If U.S. activity is real, the 8832 election or a Canadian holding structure can pay for itself.

A cross-border tax professional should run the numbers before you elect. The classification choice is reversible only with effort once filed.

Related reading

• T1135 Reporting for Canadians Who Own a U.S. LLC
• When Canadians Must File IRS Form 5472 for Their U.S. LLC
• U.S. Business Tax Guide for Canadians