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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Most Americans who move abroad don't realize they're still required to file US tax returns – and by the time they do, they're often several years behind. Missing those filings can mean penalties, growing interest charges, and foreign account reporting violations that compound the longer they go unaddressed. Before divi...
What’s new: Form 8621 December 2025 update Form 8621 has a December 2025 revision date. The IRS posted the revised form on November 26, 2025, and th...
Returning to the US after living abroad can be exciting, but the tax side of a mid-year move can get complicated fast. A returning to the US expat may need to deal with federal deadlines, partial-year exclusions, foreign accounts, state residency, and new health coverage decisions in the same filing cycle. This expat tax checklist is up...
Citizenship and tax residency are not the same thing – and for many people, that gap comes as a surprise. A US citizen living abroad is still generally inside the US tax system, while a ...
The IRS has multiple ways to identify US citizens and green card holders abroad who have not filed. Foreign bank reporting under FATCA, separate disclosures on FBAR and Form 8938, digital asset reporting, travel records, public internet research, whistleblower claims, and newer IRS AI enforcement/data matching have made non-filing abroad much eas...
Whether you live in the US or abroad, if you hold an account in a foreign bank — whether savings, pension, or investment — you may be required to comply with FBAR (Report of Foreign Bank and Financial Accounts) filing requirements. Many Americans are unaware that simply having a foreign bank account can trigger FBAR obligations. ...