Form 7004 for LLCs: How to Get a 6-Month Tax Extension

Form 7004 is a one-page request, not a tax return. You do not explain why you need more time and the IRS does not send back an approval — the extension is automatic the moment the form is timely filed. For a foreign-owned single-member LLC, the underlying return is the pro forma Form 1120 that carries Form 5472 as an attachment, so Form 7004 extends the deadline for that whole package.

The form is short: you enter the entity name, EIN, the form code for the return you are extending, and check the box for the automatic extension. The full line-by-line walkthrough lives on the Form 7004 instructions page, and the overview is on the Form 7004 hub.

The extension length is fixed at six months for a Form 1120-type filing, and the IRS does not charge for it. The only money involved is an optional preparer fee. There is no “short” or “long” option — it is one automatic 6-month grant.

Compare what specialists charge to handle the whole filing on the pricing page.

Timing is the whole point: Form 7004 only works if it reaches the IRS by the original deadline. The due date is the 15th day of the 4th month after the tax year ends, which is April 15 for almost every foreign-owned LLC. Miss April 15 and the extension is unavailable — you are then filing late from day one.

More detail is on the Form 5472 extension guide.

The mechanics are simple. On Form 7004 you identify the LLC, give its EIN, enter the form code 12 that corresponds to Form 1120, and check the box requesting the automatic extension. You leave the tax-estimate lines at zero when the disregarded entity owes no entity-level US tax.

The four practical steps

The line-by-line version is on the Form 7004 instructions page. Note that the extension and the eventual Form 5472 filing are two separate mailings.

There is no e-file route for a foreign-owned disregarded entity's Form 5472 package, so the related Form 7004 is handled on paper as well. Always retain proof — a certified-mail receipt or a fax transmission confirmation — because the IRS does not acknowledge either filing automatically.

A common and costly misunderstanding is treating Form 7004 as “the filing.” It is not. It buys 6 months, then the real return is still due. Because forming and funding an LLC always moves money from the foreign owner, virtually every foreign-owned SMLLC has a reportable transaction, so almost all must file Form 5472 — even a zero-revenue, dormant LLC.

Note that this is separate from beneficial-ownership reporting. Under FinCEN’s March 2025 interim final rule, US-formed entities — including foreign-owned US LLCs — are exempt from filing a BOI report; only foreign reporting companies file. Form 5472 is an unrelated IRS requirement that still applies. See our BOI vs Form 5472 guide for the distinction.

Form 5472 carries one of the harshest information-return penalties in the tax code. Filing Form 7004 by April 15 is the simplest protection: it costs nothing and converts a late filing into an on-time one. Because there is no statute of limitations on an unfiled information return, a missed year can be assessed years later.

The disregarded-entity-as-corporation reporting rule has applied since 2017 (final regulations under T.D. 9796), so even older LLCs are squarely in scope. We prepare and file the full package — and the extension when you need it — on the apply page.