Form 8858 is an IRS information return for US persons who own a Foreign Disregarded Entity (FDE) or operate a foreign branch. There's no income threshold, so even a dormant entity generally still needs to file.
Here's an overview of what we'll cover. Click any section to jump ahead.
- Who This Applies To
- Self-Employed Abroad? You May Still Need to File
- What You Need to Know
- Schedules You May Need to Complete
- Other Filings This May Trigger
- Penalties for Late or Missing Filing
- Related Resources
Who This Applies To
- US persons who directly own a foreign disregarded entity or operate a foreign branch
- US persons who are the tax owners of an FDE indirectly, through tiers of FDEs or partnerships
- US persons already filing Form 5471 or Form 8865 for a controlled foreign corporation (CFC) or partnership that owns an FDE or runs a branch
- US corporations that are partners in partnerships reporting dual consolidated losses
- Anyone who made a check-the-box election (Form 8832) to treat a foreign corporation as disregarded
- Self-employed individuals, freelancers, or contractors abroad with ongoing business activity, even without a formal entity
Self-Employed Abroad? You May Still Need to File
You don't need a formal entity to trigger this requirement. If you're self-employed abroad and keep local accounting records to track your income and expenses, the IRS may treat that as a foreign branch, even with no office or employees.
A one-off freelance project probably won't trigger this. Ongoing self-employment activity abroad likely will.
What You Need to Know
- There's no minimum income or asset threshold. Even a dormant entity with zero activity generally has a filing obligation.
- A separate Form 8858 is required for each foreign disregarded entity or foreign branch you own. They can't be combined.
- The form is attached to your federal income tax return, or to Form 5471 or Form 8865 when applicable. It isn't filed on its own.
- Form 8858 follows the same due date as your federal tax return. US expats get an automatic two-month extension to June 15, and filing Form 4868 extends the deadline further to October 15.
- Everything on the form is reported in US dollars, using the entity's functional currency converted at a consistent exchange rate across every schedule.
- If your entity's books are kept in a currency other than US dollars, Section 987 governs how currency-driven gains or losses get calculated, separate from your actual business income.
Schedules You May Need to Complete
Most expats with a straightforward single-member entity only need Schedule C, F, J, M, and C-1:
- Schedule C — the entity's income statement, converted into US dollars
- Schedule F — a balance sheet showing assets, liabilities, and equity at year-end
- Schedule J — foreign income taxes paid, which supports a Foreign Tax Credit claim on Form 1116
- Schedule M — transactions between the entity and you, one of the schedules the IRS reviews most closely
- Schedule C-1 — foreign currency gains or losses, governed by Section 987
Schedules G, H, and I mainly apply to more complex ownership structures, such as an entity owned through a controlled foreign corporation or foreign partnership.
Other Filings This May Trigger
Owning an FDE can create reporting obligations beyond Form 8858 itself:
- Form 5471 or Form 8865: Required if a foreign corporation or partnership owns your FDE. Form 8858 attaches to that filing.
- FBAR (FinCEN 114): Required if your combined foreign account balances exceed $10,000 at any point in the year.
- Form 8938: May apply if you meet the higher foreign asset thresholds for your filing status and residency.
None of these forms replaces the others. Each may apply independently based on your situation.
Penalties for Late or Missing Filing
- Missed filing deadline: $10,000 per entity, per year
- Still not filed 90+ days after an IRS notice: An additional $10,000 for every 30-day period, capped at $50,000 per form
- Foreign Tax Credit impact: An initial 10% reduction, with a further 5% reductions for continued non-compliance
- Willful failure to file: Can escalate into criminal penalties
If you missed a filing in prior years, you may qualify for the Streamlined Filing Compliance Procedures, which allows eligible taxpayers to catch up without the standard late-filing penalties, provided the failure was non-willful.