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Free tools for US expat taxes.

Quick answers to the questions that send US citizens abroad down a rabbit hole — is this fund a PFIC, do I have to file FBAR, what does the §1291 regime actually cost. No account, no email.

See the sample PFIC report (PDF)Anonymized example package — inspect a representative generated output before paying.

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US expat tax calculator

The whole picture in one pass — the return, the FBAR, Form 8938, PFICs, foreign companies and whether a Streamlined catch-up may be relevant. Each answer comes back with the reason it appeared.

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Start with your question

What are you trying to find out?

Every tool below answers one question well. If you know your problem but not which calculator it belongs to — which is most people, and five of these say “PFIC” on the tin — start here instead of with the grid. Grouped by the problem, not by the form.

Tax estimate and the yearly return

Whether you owe anything, which relief fits, and which forms the year needs.

Foreign accounts and reporting

Foreign funds, ETFs and Form 8621

Five tools answer five different questions here. This is which one is yours.

Retirement and pensions

Years behind, or never filed

Complex situations

A company, an inheritance, a renunciation — each brings its own return with its own deadline.

Ready to move

Not a calculator — the routes for someone who already knows what they need.

Every tool

All 22 calculators.

PFIC calculator (Form 8621)

Calculate a §1291 allocation from exact dates — back-tax, IRS interest and the current-year amount.

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PFIC filing cost calculator

What Form 8621 preparation is likely to cost: scope, package and price from your holdings and years.

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Form 8621 complexity estimator

How difficult your filing is: holdings, years, missing records, sales and prior elections.

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PFIC portfolio analyzer

Run your real portfolio through the actual §1291 calculation engine — not a rough estimate.

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Is my fund a PFIC?

Check whether a foreign fund or ETF triggers Form 8621.

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Swiss PFIC checker

Check your Swiss broker and holdings — Swissquote, IBKR, UBS, VIAC, finpension, Frankly — for PFICs.

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FBAR & Form 8938 threshold checker

See if you must file FinCEN 114 and/or Form 8938 this year.

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FBAR filing checker

Which of your foreign accounts count, whether their combined peak crosses $10,000, and whether an earlier year is open.

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Streamlined eligibility checker

See whether your facts may fit the Streamlined Foreign Offshore Procedures.

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Revolut & Wise account checker

Whether a fintech account is foreign at all, what it triggers, and whether it holds a PFIC.

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Foreign income → USD converter

Convert foreign income to USD with approximate IRS yearly-average rates.

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Expat tax deadline checker

See the key US expat filing dates and how many days remain.

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Physical Presence Test calculator

Count your full days abroad and find the best 12-month window for Form 2555.

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FEIE calculator (Form 2555)

How much foreign earned income you can exclude, prorated for a part-year qualifying period.

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Self-employment tax abroad calculator

Estimate the Schedule SE tax the FEIE does not remove, and whether a treaty covers you.

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Totalization agreement checker

Whether your country has a US social-security agreement, and what a certificate of coverage does.

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Foreign pension US tax checker

Which US forms your foreign pension or retirement account is likely to trigger.

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FEIE vs Foreign Tax Credit estimator

A rough directional read on whether FEIE or the Foreign Tax Credit fits.

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Foreign company US tax checker

Which US filings your GmbH, Ltd, SAS or Sàrl is likely to trigger — and what has to be reviewed.

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NIIT Exposure Check

Whether the 3.8% NIIT reaches your foreign investment income, and why foreign tax credits do not cancel it.

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US Tax Investment Health Check

A one-screen issue map of your foreign accounts, funds, wrappers and income — PFIC, FBAR, Form 8938, Form 1116, NIIT.

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When the tools say you have work to do

Atamatax maps supported answers into draft forms and worksheets — on-screen draft free, pay to generate the package.

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