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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If you're a US citizen or green card holder living abroad, you owe US tax on your worldwide income. That includes wages, self-employment earnings, interest, dividends, rental income, and pensions – regardless of where they were earned or where the money sits today. Your starting point is Form 1040. From there, the form or sche...
US citizens and residents can pay US taxes online in 2026 through IRS Direct Pay, debit or credit card payments, an IRS Online Account, or EFTPS for existing users. Direct Pay is free and lets you schedule a payment up to 365 days in advance; if the withdrawal succeeds, you get credit for the day you selected, though processing can take...
Form 8949 is the IRS form used to report sales and other dispositions of capital assets – stocks, bonds, cryptocurrency, real estate, and foreign investments. For tax year 2025 (filed in 2026), many taxpayers who sold an investment will need Form 8949, but some transactions can be reported directly on Schedule D or on a separate s...
A US citizen working remotely abroad for a US company remains subject to US federal income tax on worldwide income under IRC Section 61, regardless of where the work is performed. A non-US citizen who performs all services outside the United States owes no US income tax on that compensation. Two sets of rules apply, and the routing sect...
Form 706-NA is the US federal estate tax return used to compute estate and generation-skipping transfer (GST) tax liability for a nonresident non-citizen (NRNC) decedent who owned US-situated assets at death. The executor must file within 9 months of the date of death if the gross US estate, gift tax specific exemption, and adjusted tax...
An urgent IRS-looking email, letter, text, or call is not automatically real just because it uses the IRS logo, a payment deadline, or a tax year such as 2025. In 2026, the IRS says its first contact is usua...