Form 5472 Has No Statute of Limitations: What This Means
Updated June 2026 · Reviewed by a Form 5472 specialist
Updated June 2026 · Reviewed by a Form 5472 specialist
The short answer
Key takeaways
It means the IRS’s 3-year window to assess tax never begins for a year in which a required Form 5472 was not filed. Under IRC §6501(c)(8), the clock starts only when you file, so the year stays open indefinitely.
For a normal US tax return, the IRS generally has three years from the filing date to assess additional tax. Form 5472 breaks that comfort. Section 6501(c)(8) of the Internal Revenue Code says the limitations period for the entire return does not start running until the taxpayer furnishes the required information return — including Form 5472. Miss it, and the three-year clock simply never starts.
The practical effect is severe: a foreign-owned single-member LLC that skipped its 2018 filing has the same open exposure in 2026 that it had in 2019. Time does not heal an unfiled Form 5472. For the underlying authority, see IRC §6038A, which creates the filing duty, and the penalty rules on the Form 5472 penalty page.
As far back as the entity has existed. With no statute of limitations, a missed 2017 filing is as exposed in 2026 as a missed 2024 one. Every unfiled year carries its own $25,000 penalty simultaneously.
Because the assessment period never started, there is no “too old to matter” year. The IRS can stack penalties across every open year at once. For a foreign-owned LLC that funded itself each year and never filed, the arithmetic is brutal.
| Tax year | Statute status | Penalty at risk |
|---|---|---|
| 2021 | Open — never started | $25,000 |
| 2022 | Open — never started | $25,000 |
| 2023 | Open — never started | $25,000 |
| 2024 | Open — never started | $25,000 |
| Total | All open simultaneously | $100,000 |
Illustrative. Penalty is $25,000 per form, per year under IRC §6038A(d). Verified June 2026.
This is why a single overlooked year quietly compounds. If you have already missed a year, read missed Form 5472 for the steps to take before the IRS acts.
You start it by filing a complete and accurate Form 5472 with the pro forma Form 1120, even years late. The 3-year assessment period begins on the date the IRS receives that complete filing — not before.
The cure is filing. Once you submit a complete, substantially accurate Form 5472 for a year, the limitations clock for that year begins running from the received date. An incomplete or sloppy form may not start the clock at all, so accuracy is not optional — it is the mechanism that ends your exposure.
Because there is no e-file path for a foreign-owned disregarded entity, the catch-up filing must go by mail or fax. The complete process is explained on the missed Form 5472 guide, and you can hand the whole job off on the apply page.
A foreign-owned single-member LLC cannot e-file. The pro forma Form 1120 with Form 5472 attached must be mailed to P.O. Box 149342, Austin, TX 78714-9342, or faxed to 855-887-7737 — the only two accepted methods.
Whether you are filing on time or catching up ten years late, the channel is the same. There is no electronic submission for a foreign-owned disregarded entity, so keep your certified-mail receipt or fax confirmation — that proof is what fixes the “received date” that starts your limitations clock.
| Method | Where | Proof to keep |
|---|---|---|
| P.O. Box 149342, Austin, TX 78714-9342 | Certified-mail receipt | |
| Fax | 855-887-7737 | Fax transmission confirmation |
Source: IRS Instructions for Form 5472 (foreign-owned U.S. DE). Verified June 2026.
The standard on-time deadline is April 15, or October 15 with a timely Form 7004 extension. For catch-up years there is no future deadline — the penalty is already accruing, so the priority is simply to file correctly and fast.
The penalty is $25,000 per form, per year, with no cap, under IRC §6038A(d). After a 90-day IRS notice, an extra $25,000 accrues every 30 days. With no statute, all unfiled years are assessable at once.
The open statute and the penalty reinforce each other. Because the year never closes, the $25,000 is not a stale liability that lapses — it remains live until you file. And if the IRS sends a formal notice and you still do not respond within 90 days, the continuation penalty adds another $25,000 for each 30-day period.
Note that this firm does not provide penalty-abatement representation or IRS representation; the durable fix is to file each open year correctly so the clock starts. Read the full mechanics on the Form 5472 penalty page.
Any US entity at least 25% foreign-owned with a reportable transaction. Virtually every foreign-owned single-member LLC qualifies, because funding the LLC counts as a reportable transaction, so almost all of them must file every year.
The trap catches owners who assumed a disregarded entity had no filing duty. In reality, a disregarded single-member LLC is still a reporting corporation for Form 5472, and the simple act of moving startup capital into the LLC is a reportable transaction.
Capital contributions, owner loans, and reimbursements are all reportable. Many of these belong in Part V monetary transactions, and leaving them off can render a filing incomplete — which means the limitations clock may not start even after you mail something in. Completeness is what protects you.
The IRS charges nothing to file, but each open year risks $25,000. A specialist prepares each year’s Form 5472 plus pro forma 1120 for a flat $299 — versus $547 at form5472.online or $1,999/year at doola.
DIY catch-up filing is free but unforgiving — an incomplete form may fail to start the clock, leaving the year open anyway. For a flat $299 per year, form5472.tax prepares, reviews, and files each catch-up Form 5472 with its pro forma Form 1120 so the limitations period actually begins. Competitors charge far more for the same filing.
| Provider | Price per year |
|---|---|
| form5472.tax | $299 flat |
| form5472.online | $547 |
| doola | $1,999/year |
| Firstbase | $999-$1,499/year |
Source: published competitor pricing, June 2026. Verified June 2026.
Compare the full breakdown on the pricing page, or start closing your open years on the apply page.
We prepare and file each catch-up Form 5472 plus pro forma 1120 for a flat $299 per year — so the statute clock finally starts. Or message us first with your questions.