About

Tax filing built for US expats, not retrofitted.

Atamatax is the tax-preparation software the existing market didn't bother to build. TurboTax sells a Live Expat add-on but routes you to a CPA. MyExpatTaxes and Expatfile gate Form 8621 (PFIC) behind their top tier. Boutique expat CPAs are excellent at $1,500–$5,000per return — but most of our customers can't justify that on straightforward holdings.

What we cover that others don't

• Form 8621 / PFIC — built-in for every customer, with QEF, mark-to-market, and §1291 with the real IRS interest-rate table from 2009 through the current year.
• Treaty desks for France (1994), the UK (2001), Germany (1989), Canada (1980), and Australia (1982). We cite the articles; you keep the receipts.
• Foreign Earned Income Exclusion (Form 2555), Foreign Tax Credit (Form 1116), FBAR / FATCA (Form 8938) — the four-form expat baseline, generated together so the figures reconcile.
• Streamlined Foreign Offshore— three years of back-filings plus six years of FBAR in one workflow when you're eligible.

What we are not

Atamatax is software, not a CPA firm. We don't represent you to the IRS, give individualised tax advice, or sign your return. We do compute your federal tax and produce a draft package that maps every figure to the IRS form and line it belongs on, so you can complete the official forms and mail them or e-file via IRS Free Fillable Forms (pre-filled fillable forms and integrated e-file via an authorised Electronic Return Originator ship once our EFIN clears, target Q3 2026).

Pricing, briefly

Flat per-return, no usage-based surprises. $299 (no PFICs), $499 (PFICs), $799 (PFICs + treaty positions + multi-year backfile). You pay only when you finalise — the draft is always free. The full breakdown lives on the pricing page.

Who's behind it

Atamatax is operated by Atamatax — raison individuelle, Suisse (registration pending CHF 100k revenue threshold). The product was built by US expats who've fought their own returns with the existing tools and decided the gap was wide enough to fill. For everything else, support@atamatax.com reaches a human.

Open questions

Have a treaty case we don't list? A brokerage we don't recognise? Tell us — we route real customer cases into the roadmap every week.