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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Owning a foreign company means two separate US obligations: information returns that report your ownership and transactions to the IRS, and income tax returns that report the earnings those entities generate. ...
Subpart F income is certain income of a CFC that a US shareholder may have to include in current US taxable income even without a distribution. For the 2025 tax year, the rules still use GILTI terminology; NCTI changes ap...
A controlled foreign corporation (CFC) is a foreign corporation in which US shareholders – US persons who each own at least 10% of the vote or value – together own more than 50% of the total vote or value. If ...
Form 5471 is an IRS information return that US citizens and residents file to report ownership in, control of, or an officer or director role in a foreign corporation. It is attached to your Form 1040 (or Form 1120) and ...
The IRS imposes a $10,000 initial penalty for not filing Form 5471 per foreign corporation, per annual accounting period – regardless of whether any tax is owed (IRC §6038(b)). If the failure continues after IR...
NCTI – net CFC tested income – is the US tax on CFC profits under IRC s...