Broker · Switzerland
Interactive Brokers (IBKR) & PFICs for U.S. citizens in Switzerland
Why IBKR is the go-to broker for Americans in Switzerland — and the one PFIC trap that remains even there.
By Danilson Ramos · Founder, Atamatax
Published July 2026 · Updated September 2026
Direct answer
Does Interactive Brokers in Switzerland avoid the PFIC problem?
Only if you hold US-domiciled ETFs there. Interactive Brokers lets a US person in Switzerland buy US-domiciled ETFs, which are not PFICs; a UCITS or Swiss pooled fund held in the same account is still a PFIC, because the broker does not change what the fund is.
IBKR is a US company that issues US tax statements, and Swiss residents are typically serviced through its UK branch — which makes the return easier to prepare but decides nothing about the §1297 tests each fund meets or fails.
What changes the answer
- Every holding is a US-domiciled ETF or single stock: no PFIC and no Form 8621 for the account.
- A UCITS ETF or a Swiss fund is held or was held in any open year: one Form 8621 per fund per year, and the §1291 regime on a sale unless an election was made in time.
- The account was moved from another Swiss broker mid-year: the funds sold in the transfer may be §1291 dispositions.
Next step: Check my IBKR holdings for PFICs
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.
Among Americans in Switzerland, Interactive Brokers is the most commonly recommended broker — and the reasons are directly about U.S. tax.
Why U.S. persons in Switzerland use IBKR
- It's a U.S. company; Swiss residents are typically serviced via the UK branch.
- It issues U.S. tax statements (1099-style), which makes filing far easier.
- It lets you hold U.S.-domiciled ETFs — and those are not PFICs.
(This reflects widely reported community practice among U.S. persons in Switzerland — confirm the account entity and tax reporting for your situation with IBKR.)
The trap that remains: UCITS funds at IBKR are still PFICs
IBKR doesn't make a fund non-PFIC. If you hold a UCITS / EU or Swiss-domiciled fund at IBKR, it is still a PFIC that needs Form 8621. The broker helps you file; the fund's domicile is what decides PFIC status.
How to check you're PFIC-clean
Paste your IBKR holdings' ISINs into the checker: anything starting US… is not a PFIC; anything else is likely one and needs Form 8621.
Confirm none of your IBKR funds are PFICs
Paste your ISINs into the free Swiss PFIC checker. 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)
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.