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Topic · Switzerland

Swiss Bank Accounts & U.S. Tax

What having a Swiss bank account means for your U.S. taxes — reporting, the $10,000 question, and FATCA.

By Danilson Ramos · Founder, Atamatax

Published June 2026 · Updated September 2026

Reviewed and approved by our EA/CPA team on .

Part of the Switzerland desk — every US tax topic for Switzerland in one place.

Check it for your own accounts

Do you need to file an FBAR?

Three questions, no balances typed, no email. The read explains the aggregate rule — the part most people get wrong — and what would settle the rest.

Free, no account, nothing you answer leaves this page. Open the full FBAR / Form 8938 checker

Are you a US person?

A US citizen, a green-card holder, or a US resident for the year.

Do you have financial accounts outside the US?

Bank, savings, brokerage, a pension with a cash value, a fintech balance held by a non-US entity.

A threshold screen, not a filing determination. Three answers cannot establish whether a specific account is reportable; the full checker and the account's own terms can.

Having a Swiss bank account is completely legal for a U.S. person — but it comes with U.S. reporting. The account itself usually isn't taxed; the income it generates is reportable, and the account may need to be disclosed.

Two kinds of obligation

  • Reporting the account: the FBAR (combined accounts over $10,000) and possibly Form 8938 (FATCA).
  • Reporting the income: interest, dividends and gains the account produces are reportable on your return.
"My Swiss account is small" doesn't settle it — the FBAR threshold is the combined peak across all your accounts.

What Swiss banks report

Under FATCA, Swiss banks report U.S. account holders. Keeping your filings consistent with that reporting is the safest approach.

Authorities cited

  • 31 CFR §1010.350 — 31 CFR §1010.350 — FBAR (FinCEN Form 114) filing requirement and $10,000 threshold
  • FinCEN Form 114 (FBAR) — Report of Foreign Bank and Financial Accounts (FBAR)
  • IRS Form 8938 — About Form 8938 — Statement of Specified Foreign Financial Assets
  • IRC §6038D — IRC §6038D — Information reporting of specified foreign financial assets (Form 8938)

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.

Frequently asked questions

Is it illegal for a U.S. citizen to have a Swiss bank account?#
No — it's legal. What's required is reporting it (where thresholds are met) and reporting the income it generates.
My bank froze my account or asked about U.S. status — why?#
Banks manage FATCA compliance and sometimes restrict or review U.S.-person accounts. From the U.S. side, the key is keeping your reporting current and consistent. If the bank has asked for a U.S. tax number, the bank-letter guide separates what the bank needs from whether any tax years need attention.
Do I report the balance or the income?#
Both can apply: the account may be reportable (FBAR/8938 by value), and the income it earns is reportable on your return.

Related guides

Preparation · price before you start

If you want the return and the account reporting prepared

Which route fits depends on a few facts, not on the balances. These are the common situations and the route the same rules give each one. Nothing is charged until you generate a package or accept a written quote.

  1. Returns up to date, accounts over the thresholds, no non-US funds

    Simple · $299 · Self-service software

    The threshold is met and no non-US fund is in play: the Simple package prepares the return with the FBAR and Form 8938 logic inside it.

    What arrives, who prepares and checks it, and who files

    A draft filing package for one tax year: Form 1040 and the supported schedules, Form 1116 inputs, FBAR/Form 8938 threshold logic and filing instructions — with every assumption disclosed.

    The Atamatax engine prepares a draft package from the figures you enter and confirm. No person prepares it.

    Nobody at Atamatax reviews it before you download it. A package generated with an open gap is stamped DRAFT — INCOMPLETE and lists what must be resolved, and every assumption is listed for you, or a professional you choose, to check.

    You file — the return with the IRS using the package's instructions, the FBAR on FinCEN's BSA E-Filing System — or a professional you engage files for you. Atamatax transmits nothing to the IRS or FinCEN.

    Start a Simple return

  2. Every return was filed; only the FBARs were missed

    Simple · $299 · Self-service software

    Your returns appear current and only FBARs were missed. Late FBARs are filed with FinCEN directly, with the reason for filing late and a reasonable-cause statement, so the annual package covers the return side. The threshold is met and no non-US fund is in play: the Simple package prepares the return with the FBAR and Form 8938 logic inside it.

    What arrives, who prepares and checks it, and who files

    The Atamatax engine prepares a draft package from the figures you enter and confirm. No person prepares it.

    Nobody at Atamatax reviews it before you download it. A package generated with an open gap is stamped DRAFT — INCOMPLETE and lists what must be resolved, and every assumption is listed for you, or a professional you choose, to check.

    You file — the return with the IRS using the package's instructions, the FBAR on FinCEN's BSA E-Filing System — or a professional you engage files for you. Atamatax transmits nothing to the IRS or FinCEN.

    Start a Simple return

  3. The accounts hold non-US funds or ETFs

    PFIC Portfolio · $499 · Self-service software

    Non-US funds mean Form 8621 wherever a holding is a PFIC. The PFIC package screens each one from its domicile and drafts the form only where it applies.

    What arrives, who prepares and checks it, and who files

    Everything in Simple plus up to 25 supported Forms 8621 — line-mapped worksheets until independent validation of the official PDFs completes — with QEF / mark-to-market / §1291 inputs per holding, fund-domicile classification with confidence shown, and the assumption log — for one tax year.

    The Atamatax engine prepares a draft package from the figures you enter and confirm. No person prepares it.

    Nobody at Atamatax reviews it before you download it. A package generated with an open gap is stamped DRAFT — INCOMPLETE and lists what must be resolved, and every assumption is listed for you, or a professional you choose, to check.

    You file — the return with the IRS using the package's instructions, the FBAR on FinCEN's BSA E-Filing System — or a professional you engage files for you. Atamatax transmits nothing to the IRS or FinCEN.

    Prepare my PFIC portfolio

  4. Returns are missing too, not only the FBARs

    Streamlined Essential · $1,590 · Done-with-you case preparation, scoped first

    Wages, pensions or bank accounts with no non-US funds is the standard catch-up scope: three returns, six FBARs, and the certification package.

    What arrives, who prepares and checks it, and who files

    A Streamlined Foreign Offshore preparation package: up to three delinquent returns and six FBAR years as worksheets mapped to each year's official forms (official pre-filled PDFs only for tax year 2025), a document completeness check, the Form 14653 organiser, and filing instructions — one scoped quote, one payment.

    A CPA or Enrolled Agent from the Atamatax team, assigned according to your case (its forms, countries and complexity), prepares the three returns, the six FBAR years and the Form 14653 organiser from your documents, against the written scope, with the engine computing the figures, and signs as paid preparer. They are named on your case once they accept. If no professional has been assigned 7 days after payment, you choose between waiting and a full refund. You write your own statement of facts.

    The CPA or Enrolled Agent assigned to your case reviews and answers for the work they sign; a person at Atamatax checks the file is complete before it reaches you.

    You mail the returns to the IRS as the Streamlined instructions direct, and file the FBARs on FinCEN's BSA E-Filing System. Atamatax transmits nothing to the IRS or FinCEN.

    Get a scoped quote

When a professional's judgment is needed. Missed years beyond the FBARs, a foreign pension whose US treatment is unsettled, or an IRS letter about the accounts are read by a person before a route is chosen — the account reporting is the easy part; what the accounts earned is the part that needs judgment.

In every route the signatures and the filing stay with you or the accountant you choose; nothing is filed on your behalf. Written questions to hello@atamatax.com reach a person — we aim to reply within one business day. Who does what in each route.

Free preliminary result · a few questions

See which foreign-account filings may apply to you

The FBAR and Form 8938 have different thresholds, different definitions and different penalties. A few questions show which one — or both — your accounts point at, and what else rides along.

Check my foreign-account filingsNo signup. Answers stay yours.

Your next step · free

Do your accounts cross the threshold?

Enter each account's highest balance as a band. The checker runs the FBAR aggregate and the Form 8938 threshold for your filing status and where you live, and says which form — or both — the numbers point at. Free, no account.

Check my FBAR and Form 8938 thresholdsView checklist
Start the 2-min risk check