US Shareholders of Canadian Corporations: CFC and PFIC Rules Explained

When Your Canadian Corporation Is a CFC: Subpart F and GILTI/NCTI

CFC status can lead to current US income inclusions even without a distribution. Calculate Subpart F and section 951A amounts under their respective rules, including applicable exceptions, rather than treating CFC status alone as proof that tax is due. IRS CFC income instructions.

Subpart F income: Determine the relevant income categories and apply deductions, exclusions and limitations before calculating an inclusion. The IRS instructions address foreign personal holding company income, related-party sales and services income, insurance income, de minimis and full-inclusion rules, and high-tax exceptions. Investment income inside a Canadian corporation warrants review, but it does not establish that virtually all corporate income must be included. IRS Schedule I and Worksheet A instructions.

GILTI and the 2026 NCTI changes: Public Law 119-21 renamed the section 951A inclusion net CFC tested income and removed the QBAI-based deemed return for tax years beginning after December 31, 2025. The calculation still requires the applicable tested-income and tested-loss rules; do not equate gross corporate revenue with the shareholder’s inclusion. Review the shareholder’s deduction and credit eligibility separately. Public Law 119-21, section 70323.

The section 250 deduction is available to eligible domestic corporations and individuals making a section 962 election, subject to the applicable calculation and limits. Direct individual ownership does not automatically provide the corporate deduction or deemed-paid foreign tax credit treatment. Review the election, foreign-tax-credit computation and treatment of later distributions together before choosing a filing position. IRS Form 8993 instructions.

Ownership periods for 2026 onward: For foreign-corporation tax years beginning after December 31, 2025, amended section 951 ties a shareholder’s Subpart F share to periods when the shareholder owned stock under section 958(a), was a US shareholder and the corporation was a CFC. Section 951A has coordinated changes; section 956 retains a last-CFC-day ownership rule. Do not apply one simplified day-count statement to every inclusion. Public Law 119-21, section 70354.

Form 5471: Filing Requirements and Assessment Periods

Form 5471 filing depends on the applicable filer categories and exceptions. When required, attach it to the applicable income-tax, partnership or exempt-organization return by that return’s due date, including extensions. Required schedules vary by category and can cover ownership, financial statements, earnings and profits, taxes and related-party transactions. IRS Form 5471 filing instructions.

There are five categories of Form 5471 filers, and the same shareholder may fall into multiple categories in the same year:

• Category 1: Check section 965 specified foreign corporation status and the applicable shareholder rules, subcategories and exceptions. This is not necessarily historical reporting: Category 1 requirements can continue while section 965-related earnings and profits remain reportable on Schedule J or the filer has related previously taxed earnings reportable on Schedule P. IRS Category 1 instructions.
• Category 2: A US citizen or resident who is an officer or director may have reporting when a US person acquires stock meeting the 10% value or voting-power threshold, or acquires an additional 10% by value or voting power. Check the category-specific exceptions. IRS Category 2 instructions.
• Category 3: Reportable events include acquisitions reaching 10% ownership by value or voting power, an additional acquisition independently meeting that threshold, becoming a US person while meeting it, or disposing of enough stock to fall below it. Section 953(c) shareholders and filing exceptions have additional rules. IRS Category 3 instructions.
• Category 4: A US person controlling more than 50% of voting power or value at any time during its tax year, subject to ownership rules and filing exceptions. Use the IRS category chart to identify required schedules.
• Category 5: Determine the applicable CFC-shareholder category, including subcategories 5a, 5b and 5c and any filing exceptions. Required schedules differ; use the IRS category table rather than assuming every 10% shareholder files the same schedules. For foreign-corporation years beginning after December 31, 2025, also review the enacted ownership and income-allocation changes described above against the instructions applicable to the return year. IRS Category 5 definitions, exceptions and schedule table.

For failures covered by section 6038(a), the initial penalty is $10,000 per corporation and accounting period. After the IRS notice and 90-day period, continuing failure can add $10,000 per 30-day period or fraction, capped at $50,000 additional. Exceptions and relief provisions require separate review. IRS Form 5471 penalty instructions. Missing required international information can also extend the assessment period; see the qualified explanation below.

Where section 6501(c)(8) applies, the assessment period does not expire before three years after the required information is furnished. The extension can cover the entire return; if the failure was due to reasonable cause and not willful neglect, it applies only to related items. IRS explanation of the assessment-period rule.

When Your Canadian Corporation Is a PFIC

A Canadian corporation can be a PFIC even if it is not a CFC or a particular US investor owns less than 10%. Apply the PFIC tests and shareholder-specific rules separately. IRS PFIC definition.

PFIC income test: Compare passive gross income with total gross income for the tax year; the threshold is 75%. Passive income generally follows the foreign personal holding company income definition, subject to PFIC-specific exceptions and look-through rules. An investment portfolio or substantial retained earnings is a reason to perform the calculation, not proof that the threshold is met. IRS PFIC definition and section 1297.

For PFIC asset testing, publicly traded corporations use fair market value. Non-public CFCs use adjusted basis; other non-public foreign corporations may elect adjusted basis. When the corporation owns at least 25% by value of another corporation, include its proportionate share of that corporation’s assets and income. IRS asset measurement and look-through rules.

The active-business exception for rents and royalties is in section 954(c)(2)(A), not section 954(h). It addresses rents and royalties from the active conduct of a trade or business received from an unrelated person. PFIC passive-income classification refers to section 954(c) and has additional rules and exceptions; a company’s operating-business label alone does not establish the result. Section 954(c)(2)(A) and section 1297(b).

The Three PFIC Regimes: Default Rules, QEF, and Mark-to-Market

PFIC tax treatment depends on the applicable regime, election eligibility and holding-period history. Compare the default rules with QEF and mark-to-market elections before choosing an approach; an election does not automatically remove tax consequences from earlier years.

Default rules (IRC §1291): An excess distribution is the portion above 125% of average distributions in the preceding three years, or the shorter pre-current-year holding period. A distribution in the first holding year is not an excess distribution; disposition gain is treated as an excess distribution. Amounts are allocated across holding days: current-year and pre-PFIC-year portions are ordinary income, while prior PFIC-year portions receive the separate tax and interest calculation. IRS Form 8621 instructions.

QEF election (IRC §1295): Generally elect by the return due date, including extensions, for the first year the election will cover. Annual ordinary earnings and net capital gain are included even without a distribution. Included earnings increase basis; distributions of previously taxed amounts reduce basis. The required information may come from a PFIC Annual Information Statement, an eligible intermediary statement or a combined statement. An unpedigreed QEF can remain subject to section 1291. IRS election and documentation requirements.

Starting QEF treatment after earlier PFIC years: A prospective QEF election and a retroactive election are different. Retroactive elections require the protective-statement or IRS-consent conditions. For an eligible deemed-sale election associated with QEF treatment, the valuation date is the first day of the PFIC’s first tax year as a QEF. Recognized gain receives section 1291 treatment and increases basis; a deemed loss is not recognized and does not reduce basis. Eligible shareholders may instead qualify for the deemed-dividend election. Check each election’s deadline and attachments. IRS Elections A, D and E.

Mark-to-market election (IRC §1296): Stock must meet the marketable-stock rules, including applicable regular-trading and qualified-exchange requirements. Annual ordinary income is measured by year-end fair market value above adjusted basis, not simply the change in market price. A deduction for value below basis is limited to unreversed prior inclusions, and basis is adjusted for recognized amounts. Section 1291 may still apply in the first election year. IRS marketable-stock and first-year coordination rules.

Form 8621: PFIC Annual Reporting

Form 8621 filing depends on direct or indirect ownership, distributions, dispositions, elections and annual-reporting rules. Check the applicable exceptions rather than assuming every PFIC holding requires every part of the form. IRS Form 8621 filing instructions.

The $25,000 exception ($50,000 for joint filers) concerns Part I reporting for a section 1291 fund, measured at tax-year end using the IRS aggregation rules. It requires no excess distribution or disposition gain from that fund. It is not a blanket exemption from other Form 8621 reporting or elections.

Generally attach a required Form 8621 to the applicable return by its due date, including extensions. If no income-tax or other return is required, file Form 8621 separately as instructed by the IRS. FBAR reporting is a separate obligation; an omitted Form 8621 does not by itself establish an FBAR violation.

Penalty Summary: Form 5471 vs Form 8621

Canadian Funds, PFIC Review and RRSP/RRIF Conditions

Canadian mutual funds and ETFs warrant a PFIC review, but the fund’s name or listing alone does not establish its US classification. Determine whether the investment is treated as stock of a foreign corporation and apply the PFIC income or asset tests and ownership rules. Form 8621 obligations depend on the filing triggers, elections and applicable exceptions described above; do not assume every fund requires the same reporting or tax treatment. IRS PFIC definitions and filing rules.

RRSP/RRIF deferral has conditions: Revenue Procedure 2014-55 treats eligible individuals as having elected deferral of undistributed income in covered Canadian retirement plans, including RRSPs and RRIFs. Eligibility requires the specified US return-filing and distribution-reporting history and no prior reporting of undistributed plan earnings as gross income. Individuals who previously reported those earnings must seek IRS consent to elect deferral. The election defers qualifying income until distribution; it is not a blanket exemption for every Canadian registered account. Separately, certain treaty-covered foreign pension arrangements qualify for a Form 8621 Part I reporting exception. Revenue Procedure 2014-55 and Form 8621 pension exception.

Form 8891 is obsolete, but retirement-plan deferral does not eliminate separate asset-reporting requirements. For a US person with reportable foreign accounts, the FBAR threshold is an aggregate value exceeding $10,000 at any time during the calendar year, rather than $10,000 in each account. Check Form 8938 separately under its applicable filing thresholds. FinCEN FBAR requirements and IRS Canadian-plan reporting guidance.

Review each account and its underlying holdings: Do not extend an RRSP/RRIF conclusion to a TFSA or RESP without checking the account’s US tax treatment and the investments it holds. PFIC classification concerns the foreign corporation and applicable ownership rules; a Canadian account label alone does not resolve it. Gather the account documents, fund information and prior returns before deciding whether an election, filing correction or investment change is appropriate. IRS PFIC definitions and filing rules and covered retirement-plan rules.

Visa Status and CFC/PFIC Exposure: H-1B, L-1, TN, and E-2 Workers

Before a move, review immigration status, US day counts, residency dates and corporate ownership separately. A work-visa label alone does not settle tax residency or which foreign-company forms must be filed.

Substantial presence and starting dates: The substantial presence test requires at least 31 US days in the current year and 183 weighted days across three years: all current-year days, one-third of the preceding year and one-sixth of the year before. Excluded days and exceptions can change the result. Residency generally starts on the first counted US day in a year satisfying the test, but prior-year residency and other starting-date rules matter. IRS substantial presence test and residency dates.

H-1B, L-1, TN and E-2 holders with Canadian shares: Gather ownership percentages, share-acquisition dates, related-party interests and prior returns. Determine tax residency first, then apply the CFC/PFIC tests and each form’s filing categories and exceptions. Do not assume a Canadian company becomes a CFC solely because a shareholder moves to the United States. Form 5471 instructions and Form 8621 instructions.

First-year choice and spousal elections are different: The first-year choice can establish part-year residency when its eligibility and presence conditions are met, including the following year’s substantial presence test. It is not itself a full-year joint-return election. A separate qualifying spousal choice can require reporting both spouses’ worldwide income for the entire year. Review the election’s scope and each information-return rule before applying it. IRS first-year choice and nonresident-spouse election.

Selling Shares of a Canadian Corporation: Section 1248 and Treaty Issues

US shareholders who sell their stake in a Canadian CFC face a separate layer of US tax rules governing the character of the gain recognized on disposition.

Section 1248 can change the character of sale gain: Its general rule applies when a US person sells or exchanges foreign-corporation stock and met the 10% voting-power ownership test, including applicable attributed ownership, at a time during the preceding five-year period when the corporation was a CFC. Recognized gain is treated as a dividend to the extent of attributable earnings and profits accumulated during the relevant ownership and CFC periods. Review earnings-and-profits exclusions and previously taxed amounts before computing the dividend portion. Section 1248.

Dividend treatment does not automatically mean ordinary income rates: IRS Notice 2004-70 explains that section 1248(a) amounts can be qualified dividend income if the foreign corporation qualifies and the other section 1(h)(11) requirements are met. PFIC status and the shareholder’s facts matter. Determine eligibility before assigning a rate; do not assume every CFC sale dividend is taxed at the top ordinary rate. IRS Notice 2004-70, section 4.01.

Check Canadian taxation separately: Canadian incorporation alone does not settle whether a nonresident’s shares are taxable Canadian property. CRA guidance includes a previous-60-month test: unlisted shares can qualify when more than 50% of their value came from specified Canadian real, resource or timber property, including relevant options or interests, subject to the indirect-value rules. Listed shares and certain fund interests have additional ownership conditions. Treaty exemption and section 116 notification or certificate requirements need a separate check. CRA nonresident property-disposal guidance.

Canadian Corporate Rules to Check Alongside US Reporting

Canadian corporate classification, dividend refunds and capital-dividend rules answer different questions. Establish the company’s status and the recipient’s residency, then review the US inclusions and foreign-tax-credit rules using the same underlying records. CRA corporate classifications and IRS foreign-tax-credit guidance.

Small business deduction: The general federal small-business rate is 9% for qualifying Canadian-controlled private corporations claiming the deduction; provincial or territorial rates and business limits vary. Canadian incorporation alone does not establish eligibility. Nonresident control can prevent CCPC status, so an ownership or residency change needs review before assuming the reduced rate applies. Compare US inclusions and available credits using the actual corporate income and tax records. CRA corporate rates and CCPC requirements.

Refundable dividend tax on hand: Canadian rules distinguish eligible and non-eligible RDTOH balances. A private corporation paying taxable dividends may obtain a refund, subject to the applicable balance and ordering rules. Keep the tax and refund records for the US review rather than assuming either automatic US relief or no US effect. Foreign tax credits require a separate eligibility and limitation analysis, and refunds can require a redetermination. CRA dividend-refund rules and IRS foreign-tax-credit guidance.

Capital dividends depend on the recipient: CRA guidance generally excludes a properly elected capital dividend from Part I income for a Canadian-resident shareholder, subject to exceptions. Payments to nonresidents are subject to Canadian withholding, potentially reduced by an applicable treaty. Do not describe capital dividends as tax-free for every shareholder or infer US treatment solely from the Canadian label. Review the distribution, earnings, basis and prior inclusions for the US return. CRA capital-dividend guidance, paragraphs 1.17–1.18.

Compliance Remediation: Getting Back Into Compliance

If required Form 5471 or Form 8621 reporting was missed, determine which years and forms are affected and whether income was also omitted. The IRS correction routes below have different eligibility and penalty terms; the facts determine the available approach. IRS correction options.

Delinquent International Information Return Submission Procedures: Taxpayers outside an IRS civil examination or criminal investigation who have not been contacted about the delinquent information returns should use normal filing procedures. Penalties may still be assessed. Generally, attach delinquent information returns to an amended income-tax return; Forms 3520 and 3520-A follow their own instructions. A reasonable-cause statement may be attached when claiming relief, but the IRS may assess penalties before considering it and may request a response or resubmission. For Forms 3520 and 3520-A, the IRS says attached reasonable-cause statements are considered before assessment. Review the applicable instructions and any IRS correspondence rather than assuming penalty relief. IRS delinquent information-return procedures.

Streamlined filing procedures: These procedures are for eligible individuals, including estates of individuals, who can certify that the relevant failures were non-willful. An IRS civil examination for any tax year or a criminal investigation makes a taxpayer ineligible. Submissions remain subject to verification and possible audit; the process does not produce a closing agreement. The domestic and foreign tracks have different eligibility and filing requirements. IRS streamlined eligibility and treatment.

• Domestic track: Eligibility includes having filed required US returns for each of the three covered return years and failing the foreign track’s nonresidency test. Submit three covered years of amended returns and required information returns, any delinquent FBARs for the six covered FBAR years, and the signed non-willfulness certification. Pay tax, interest and the 5% miscellaneous offshore penalty. That penalty uses the highest aggregate of year-end values of assets subject to the penalty across the covered return and FBAR periods, not simply the highest account balance during six years. IRS domestic-track requirements and penalty computation.
• Foreign track: Living abroad alone does not establish eligibility. US citizens and green card holders generally need no US abode and at least 330 full days abroad in at least one of the three covered years; other individuals use the specified substantial-presence condition. Both spouses must qualify for a joint submission. Eligible filers submit three covered years of delinquent or amended returns with required information returns, any delinquent FBARs for six covered years, the signed certification, and tax and interest. The specified penalty relief depends on eligibility and full compliance; previously assessed penalties are not abated. IRS foreign-track requirements and relief.

Voluntary Disclosure Practice (VDP): For willful noncompliance, discuss the IRS Criminal Investigation practice with a qualified tax or legal adviser before submitting. A disclosure must be truthful, timely and complete, with required documentation, cooperation and full payment or a full-pay installment agreement for tax, interest and applicable penalties. Preclearance does not guarantee acceptance, and disclosure does not guarantee immunity from prosecution. IRS VDP requirements.

Check each procedure’s timing rules: Streamlined eligibility excludes an IRS civil examination for any year or a criminal investigation. VDP timeliness also depends on whether the IRS already received specified third-party or enforcement information, even before contacting the taxpayer. Review existing notices and the applicable procedure before filing; do not assume all correction routes share one contact deadline. Streamlined exclusions and VDP timeliness.