Default tax treatment without Form 8832
- Single-member LLC owned by non-US person: disregarded entity (pass-through). Form 5472 + pro forma 1120 annually.
- Multi-member LLC: partnership. Form 1065 + K-1s annually.
- Domestic LLC owned by US person: disregarded entity (single-member) or partnership (multi-member). Same as above.
When to consider Form 8832 C-Corp election
- Planning to raise US venture capital within 12 months (VC requires C-Corp)
- Want to retain earnings inside the LLC at corporate tax rate (21% federal) instead of pass-through to your higher marginal rate
- Want to claim R&D tax credit (Section 41) which is only available to C-Corps in some cases
- Multi-investor LLC where shareholder structure benefits from C-Corp accounting
Why most non-residents should NOT file 8832
- Double taxation: C-Corp pays 21% federal corporate tax, then dividends to owner withheld at 30% (or treaty rate)
- Loses pass-through ECI benefit: with pass-through, you owe US tax only on ECI; with C-Corp, the LLC owes US tax on all profits
- More complex filings: full Form 1120 with detailed income/expense reporting, not just pro forma cover
- Locked in for 5 years: cannot easily revoke C-Corp election; typically locked in for 5 years
How to file Form 8832
- Fill out Form 8832 (one page)
- Check the appropriate classification box (typically Box 6a "Corporation")
- Sign and date
- Mail to the IRS service center for your LLC's address
- Effective date: typically the date of formation if filed within 75 days, or up to 12 months in the past