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AtamataxUS-expat edition

How it works Treaty countries Pricing FAQ

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Atamatax

Self-serve federal returns for US citizens and green-card holders abroad with foreign brokerages. Built by expats, for expats — covering the Form 8621 and treaty edge cases other software skips.

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Treaty desks

France · 1994
United Kingdom · 2001
Germany · 1989
Canada · 1980
Australia · 1982

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Atamatax is a software preparer. We do not provide tax advice. Always confirm filings with a licensed CPA before submission.© 2026 Atamatax · Demo build