Need more time?
Form 7004 buys an automatic six months to file. It does not buy more time to pay.
New deadlines with an extension
| Your company | Return | Normal | Extended |
|---|---|---|---|
| Multi-member LLC | 1065 + K-1s | 15 March | 15 September |
| Foreign-owned single-member LLC | Pro-forma 1120 + 5472 | 15 April | 15 October |
| C-Corporation | 1120 | 15 April | 15 October |
Dates shown are for calendar-year filers. A corporation with a 30 June year end follows a different rule. Source: IRS Instructions for Forms 7004, 1120 and 5472.
The trap: filing is extended, paying is not
The IRS states plainly that Form 7004 does not extend the time to pay any tax due.
For most non-resident founders with no effectively connected income there is nothing to pay, so the extension is genuinely free. If your LLC does owe US tax, that payment is still due on the original date and interest runs from there regardless.
Extending does not reduce the penalty risk
An extension moves the deadline. It does not remove the obligation. A foreign-owned single-member LLC that never files still faces the $25,000 Form 5472 penalty — the extension simply means the clock starts in October rather than April.
Or just have it filed properly.
Single-member from $300, multi-member from $500, C-Corp from $800. Extension included when it helps.