Updated June 2026 · Reviewed by a Form 5472 specialist

The short answer
Key takeaways
Yes. form5472.online is a real preparer that files Form 5472 with a pro forma Form 1120 for foreign-owned LLCs, with a base SMLLC price of $547. The deliverable is a standard, correctly-prepared IRS filing — the common complaint is the price, not the legitimacy.
Let us be fair before we compare. form5472.online does what it says: it gathers your LLC details, prepares Form 5472 and the accompanying pro forma Form 1120, and sends you a package to file (or files it for you). The form it produces is the same one defined under IRC §6038A that every foreign-owned single-member LLC must file. There is nothing fraudulent about it. If you have already paid them and the return was filed on time, you are fine.
The honest question is value. The Form 5472 itself is a fixed-scope, repeatable filing — the same nine sections every year for most foreign-owned SMLLCs. When the deliverable is identical, price is the only variable that matters. That is why this review focuses on what you pay versus what you get. For a side-by-side breakdown see our form5472.online alternative page.
form5472.online charges $547 for an active foreign-owned single-member LLC filing and roughly $677 for an active C-corporation. form5472.tax files the identical return for a flat $299, a $248 saving on the SMLLC filing.
form5472.online uses a tiered price that climbs with entity type and activity. For the most common customer — a foreign owner of a single-member LLC that moved money during the year — the active filing lands at $547. A flat fee for the same work is dramatically cheaper, and there are no IRS submission charges to add on top; the IRS charges nothing to receive the form.
| Filing | form5472.online | form5472.tax |
|---|---|---|
| Active SMLLC (Form 5472 + pro forma 1120) | $547 | $299 flat |
| Active C-corporation (Form 5472 + 1120) | $677 | $349 (Phase 2) |
| IRS submission fee | $0 | $0 |
Source: published form5472.online pricing; form5472.tax flat-fee schedule. Verified June 2026.
That is a $248 difference for the SMLLC filing with no change in the actual IRS form. See the full ladder on our pricing page.
You get a prepared Form 5472 and pro forma Form 1120 ready to mail or fax — the same two-document package any preparer produces. There are no extra IRS deliverables; the $547 buys preparation and review of exactly two forms.
A foreign-owned SMLLC filing is short. Form 5472 reports who the foreign owner is, what the LLC is, and the dollar value of each reportable transaction. The pro forma 1120 is a near-blank cover page that exists only to carry the 5472 — a disregarded entity owes no entity-level tax. So whether you pay $547 or a flat $299, the output is the same two pages going to the same IRS address.
| Document | Purpose |
|---|---|
| Pro forma Form 1120 | Cover page only — name, EIN, address; no tax computed |
| Form 5472 | Reports the 25% foreign owner and each reportable transaction |
| Cover statement | Notes the entity is a foreign-owned disregarded entity |
Source: IRS Instructions for Form 5472 (foreign-owned U.S. DE). Verified June 2026.
Because the scope is fixed, paying more does not buy a better form. It buys the same form at a higher price. Read the full breakdown of the document set in our cheapest service comparison.
form5472.online runs on a Wix-style template site, while form5472.tax is built on Next.js with server-rendered pages. It matters for speed and trust: a fast, transparent flat-fee checkout signals a tighter, more focused operation than a tiered template funnel.
This is a softer point, but a real one. form5472.online is built on a drag-and-drop website builder with a tiered upsell flow — pick your entity, pick your add-ons, watch the price climb. form5472.tax is a purpose-built Next.js application: every page is server-rendered, the price is one flat number, and the checkout is a single Stripe link. You are not nudged through tiers.
Does the underlying tech change your IRS form? No. But it tells you how the business is run. A flat fee on a fast, focused site usually means the operator has standardized the work and passes the savings on. A tiered template funnel usually means the price is set to maximize the cart, not to reflect the cost of preparing two pages. Compare the two approaches on our alternative comparison page.
No. A foreign-owned single-member LLC cannot e-file Form 5472 through any service. The filing must be mailed to P.O. Box 149342, Austin, TX 78714-9342, or faxed to 855-887-7737 — those are the only two accepted methods in 2026.
This is a hard IRS rule, not a service limitation. There is no e-file channel for a foreign-owned disregarded entity filing a pro forma 1120 with Form 5472 attached. So no matter which preparer you choose, the return leaves on paper or by fax. Keep your certified-mail receipt or fax confirmation as proof of timely filing.
| Method | Where it goes | 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.
If a service ever claims it can e-file your foreign-owned SMLLC return, treat that as a red flag. The honest method is on our apply page, where we file by mail or fax for you.
Form 5472 for the 2025 tax year is due April 15, 2026, filed with the pro forma Form 1120. Filing Form 7004 by April 15 extends the deadline to October 15, 2026. The deadline is identical no matter which preparer you hire.
The deadline is the 15th day of the fourth month after the tax year ends — April 15 for a calendar-year LLC. A six-month extension is available via Form 7004, pushing filing to October 15, but a disregarded entity has no entity-level tax to pay, so the extension only extends the paperwork. Missing the date is what triggers the penalty, regardless of how much you paid your preparer.
Virtually every foreign-owned SMLLC has a reportable transaction — funding the LLC counts — so almost all of them must file by this date. The disregarded-entity-as-corporation rule has applied since 2017 under T.D. 9796. If you are unsure whether you qualify, our annual compliance explainer walks through it.
No. The penalty is $25,000 per form, per year, with no cap and no statute of limitationsunder IRC §6038A(d) and §6501(c)(8). Any preparer that files correctly and on time avoids it — the price you pay does not change the rule.
The $25,000 penalty is the reason people hire a service at all, so it is worth being precise. It applies per form, per year, with no maximum and no statute of limitations on an unfiled information return. After a 90-day IRS notice, an additional $25,000 accrues every 30 days. A return missed years ago can still be assessed today.
But here is the key point for this review: the penalty is avoided by filing correctly and on time, not by spending $547. A flat-fee preparer that mails the same forms by April 15 protects you exactly as well as a premium-priced one. We do not offer penalty-abatement or IRS representation — we focus on filing right the first time. Estimate exposure on our cost comparison page.
The cheapest alternative is form5472.tax at a flat $299 for the same SMLLC filing — a $248 saving versus $547. Subscription services like doola ($1,999/year) and Firstbase ($999-$1,499/year) cost far more for the identical annual job.
If the form is fixed-scope, the rational choice is the lowest competent flat fee. form5472.tax prepares Form 5472 and the pro forma Form 1120, reviews it, and files it by mail or fax for a flat $299. Bundled compliance subscriptions add registered-agent and bookkeeping you may not need, which is why doola and Firstbase land in four figures for the same filing.
| Provider | Price | Savings vs $547 |
|---|---|---|
| form5472.tax | $299 flat | $248 |
| form5472.online | $547 | — |
| doola (annual compliance) | $1,999/year | −$1,452 |
| Firstbase (annual compliance) | $999-$1,499/year | −$452 to −$952 |
Source: published provider pricing. Verified June 2026.
One note on a separate requirement people confuse with this: BOI reporting. Per FinCEN’s March 2025 interim final rule, US-formed entities — including foreign-owned US LLCs — are exempt from BOI filing; only foreign reporting companies file. Form 5472 is a separate, still-required filing. Start yours on our apply page or review the full ladder on our annual checklist.
Same Form 5472 and pro forma 1120 form5472.online prepares, filed by mail or fax for a flat $299. Or message us first — we answer every question.