Broker · Switzerland
UBS, Swisscanto funds & PFICs for U.S. citizens
How UBS handles U.S. persons, and why UBS and Swisscanto fund-based products can be PFICs that need Form 8621.
By Danilson Ramos · Founder, Atamatax
Published July 2026 · Updated September 2026
Part of the Switzerland desk — every US tax topic for Switzerland in one place.
Check it for your own holding
Could this investment be a PFIC?
Two questions and, if you have it, the ticker or ISIN. The read is immediate, nothing you enter leaves this page, and it names what would settle the rest.
Free, no account, nothing you answer leaves this page. Open the full portfolio scanner
Screened against the fund registry on this page. It is never sent anywhere.
A screen. Whether a fund is a PFIC turns on its own annual income and asset facts under §1297; the read above says how far your answers go and what would settle the rest.
UBS serves U.S. persons differently from ordinary retail clients, and the fund-based products U.S. persons do end up holding raise PFIC questions.
How UBS treats U.S. persons
UBS generally serves U.S. persons through a specialised, FATCA-registered U.S. division rather than standard Swiss retail brokerage. (This is the widely described arrangement — confirm your own relationship and what you're permitted to hold with UBS.)
Why Swisscanto and advisory funds can be PFICs
UBS advisory and mandate products are often built on collective investment funds. A non-U.S.-domiciled fund — including Swiss-domiciled Swisscanto funds — is a PFIC for a U.S. person, and each one generally needs its own Form 8621 each year under the default §1291 rules.
| Holding at UBS | PFIC? | Typical filing |
|---|---|---|
| Swisscanto / Swiss-domiciled fund | Likely | Form 8621 each year |
| UCITS / EU fund in a mandate | Likely | Form 8621 each year |
| U.S.-domiciled ETF | No | FBAR / Form 8938 if over threshold |
| Individual shares / cash | No | Report the account |
Check your UBS or Swisscanto holdings
See which of your funds are PFICs that need Form 8621. This is general information, not individualised tax advice.
From one fund to the whole case
What does your PFIC situation actually require?
Four questions — how many funds, for how long, whether Forms 8621 were ever filed, whether the returns are current — and a route into the preparation that fits, with what it costs. Nothing you answer leaves this page.
Free, no account, nothing you answer leaves this page. Open the full portfolio scanner
A routing read, not a determination. Whether a fund is a PFIC, whether an exception applies and what a prior year needs are established when the holdings are screened; the route above says where that happens and what it costs.
Authorities cited
- IRC §1297 — IRC §1297 — Definition of a passive foreign investment company
- IRS Form 8621 — About Form 8621 — Information Return by a Shareholder of a PFIC or QEF
- IRC §1291 — IRC §1291 — Interest on tax deferral (excess-distribution regime)
- IRS Form 8938 — About Form 8938 — Statement of Specified Foreign Financial Assets
- FinCEN Form 114 (FBAR) — Report of Foreign Bank and Financial Accounts (FBAR)
Primary sources (Cornell Legal Information Institute for the US Code and CFR; IRS.gov for forms, procedures, and treaty documents). This page is general information, not individualized tax or legal advice.
Atamatax provides tax preparation support and educational resources. This website does not constitute legal or tax advice.