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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At a glance Who must file: US citizens who relinquish citizenship, long-term residents who end US tax residency, and certain individuals with ongoing reporting obligations for deferred tax, eligible d...
Assurance Vie can work well in France, but US expats need a second tax lens. French income-tax treatment improves after 8 years, FBAR review can start once foreign accounts exceed $10,000 in aggregate, and French withdrawal rules shift around the €150,000 premium threshold. US reporting may also reach Form 8938 and sometimes Form 8621. ...
US dual citizens must file a federal tax return with the IRS each year if their gross worldwide income meets the filing threshold for their filing status and age, or if another filing trigger applies, regardless of their country...
Most US expats filing for tax year 2025 start with Form 1040, then add Form 2555 if they are claiming the foreign earned income exclusion, Form 1116 if they are claiming the foreign tax credit, and FBAR and/or Form 8938 if they meet the separate ...
Effectively connected income (ECI) is income the IRS treats as directly tied to a trade or business conducted in the United States. Unlike passive US-source income, ECI is taxed on a net basis – meaning deductions are allow...
Form 1065 is the annual informational return a partnership files with the IRS to report its total income, deductions, gains, losses, and credits. Schedule K-1 (Form 1065) is the partner-level stateme...