A PFIC is a US tax status that snares US persons holding most foreign (including Canadian) funds.
What it is
A Passive Foreign Investment Company (PFIC) is a US tax classification under IRC section 1297 for any non-US corporation that is primarily an investment vehicle. A foreign corporation is a PFIC if either at least 75% of its gross income is passive (the income test) or at least 50% of its assets produce or are held to produce passive income (the asset test). Passive income generally means dividends, interest, rents, royalties, and capital gains. The label matters only for US persons (US citizens, green-card holders, and US tax residents) who hold shares in the foreign company.
Why it matters
For a US person, owning a PFIC is one of the harshest corners of the US tax code: without an election, gains and "excess distributions" are taxed under the section 1291 regime at the highest ordinary income rates plus an interest charge for deferral, and each holding requires a separate Form 8621 every year. The common pitfall is assuming this only affects exotic offshore funds. In reality, most ordinary Canadian mutual funds and many Canadian-listed ETFs are PFICs, so a US citizen living in Canada who buys a TSX-listed index fund can unknowingly walk into the trap.
How it's calculated
PFIC status is not a number you compute on a stock but a yes/no classification tested annually against the company itself. You apply two tests: the income test asks whether 75% or more of gross income is passive, and the asset test asks whether 50% or more of average assets produce or are held for passive income. Meeting either test makes the corporation a PFIC for that year for its US shareholders.
How Quintarthai uses it
Use a company's /app/ deep-analysis page to see whether a name is a US-domiciled operating company or a foreign fund-like structure, which is the first clue to PFIC exposure, and consult the Knowledge Base entries on cross-border accounts before buying foreign funds. Quintarthai does not give tax advice, so confirm any specific PFIC determination with a cross-border tax professional.
Cross-border note. This is a US-side rule with no Canadian equivalent: Canada does not care about PFIC status, but the IRS does, so it bites US citizens and green-card holders living in Canada. The CRA is happy for them to hold Canadian mutual funds and ETFs, yet those same holdings are usually PFICs to the IRS; a common safer route is to own US-listed ETFs or individual stocks instead, ideally after professional advice.
FAQ
I am a US citizen living in Toronto with a TFSA full of Canadian index ETFs. Is that a PFIC problem?
Very likely yes. Most Canadian mutual funds and many Canadian-listed ETFs are PFICs for US tax purposes, and the TFSA wrapper does not shield you from US tax or Form 8621 filing. Many cross-border advisors steer US persons toward US-listed ETFs or individual securities and recommend professional review of any existing holdings.
Can I avoid the worst PFIC tax by making an election?
Often yes. A Qualified Electing Fund (QEF) election or a mark-to-market election can replace the punitive default section 1291 regime with more normal annual taxation, but the QEF election needs the fund to supply specific PFIC annual information that many Canadian funds do not provide. You still file Form 8621 each year, so get advice before relying on an election.
Check your understanding
A dual US-Canadian citizen living in Calgary buys a TSX-listed Canadian equity mutual fund inside her non-registered account. From a US tax standpoint, what is the most likely consequence?
Most Canadian mutual funds are PFICs for US persons regardless of where the account is held, triggering Form 8621 and the harsh default regime unless a QEF or mark-to-market election is made. Canadian residency, the account location, and the treaty do not turn off the PFIC rules.