50,000+ clients, 193+ countries, 4,000+ reviews

At TFX, we have been preparing business tax returns for over 25 years. We never hire junior staff. No outsourcing, no middlemen: you’ll be working directly with an experienced (our average age is 42) CPA or EA who will handle your case from beginning to end.
Aside from knowledge, convenience and security are what we value at TFX. And these key features are what our clients are thrilled with. Our best-in-class secure online portal makes TFX the top-rated tax firm (with an average score of 4.8/5 on Trustpilot).
In addition to tax filing & compliance, TFX offers tax planning & phone consultations. Choose a convenient time & book directly in your client portal.
TFX pricing is transparent, which means you’ll always know what you pay for.
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Viele Amerikaner, die in Deutschland leben, stellen Jahre später fest, dass von ihnen immer noch erwartet wird, US-Steuererklärungen abzugeben, ausländische Bankkonten zu melden und die internationalen Meldevorschriften einzuhalten. In vielen Fällen wird das Problem erst sichtbar, wenn Sie FATCA-bezogene Anfragen von deutschen...
“The overwhelming amount of online information left me feeling panicked; I did not know where or how to start the process of becoming tax compliant.” Aishah Ahmed Bumadian, American expat in the UK For many Americans living abroad, US tax obligations come a...
If you spent any part of 2025 in the United States on an F, J, M, or Q visa and are claiming excluded days under the substantial presence test, Form 8843 is the IRS form you use, even if you had no income. This Form 8843 guide is written for the people who actually file the form: international students, J-1 scholars, M-1 vocational stud...
US contractors abroad still owe US tax on worldwide income. The core math: report net business income on Form 1040, calculate self-employment tax on Schedule SE. The 15.3% rate applies to 92.35% of net earnings, with the Social Security portion capped at the annual wage base. FEIE and the Foreign Tax Credit are separate ways to reduce f...
Constructive Ownership is more than a technical tax term – it is the way the IRS prevents taxpayers, corporations, and foreign companies from sidestepping reporting thresholds. This guide tells you about how these rules apply in practice, why they matter, and where they trigger reporting duties. By attributing shares held by famil...
Pour de nombreux Américains vivant en France, le problème commence par un simple e-mail de leur banque. ...