Firstbase Annual Compliance Review 2026: What You Get
Updated June 2026 · Reviewed by a Form 5472 specialist
Updated June 2026 · Reviewed by a Form 5472 specialist
The short answer
Key takeaways
Firstbase is a US company-formation platform that, since 2019, has incorporated tens of thousands of startups. Its annual compliance bundle — about $999-$1,499/year — adds registered agent, bookkeeping tooling, and tax-return preparation, including Form 5472 where required.
Firstbase (firstbase.io) earned its reputation with a clean formation flow and a founder-friendly dashboard. For a venture-backed Delaware C-corp juggling payroll, equity, and multi-state nexus, that all-in-one model is genuinely useful — one login covers agent service, books, and the federal return. The platform is well engineered and the support is responsive, which is why we recommend giving credit where it is due.
| Component | Included? | Needed for a bare SMLLC? |
|---|---|---|
| Registered agent service | Yes | Only if you lack a US address |
| Bookkeeping / accounting tools | Yes | Rarely for a zero-revenue LLC |
| Federal tax preparation | Yes | Just the pro forma 1120 + Form 5472 |
| Form 5472 preparation | Yes | Yes — the only true requirement |
| State filing reminders | Yes | Helpful but not the filing itself |
Source: Firstbase published plans; form5472.tax analysis. Verified June 2026.
The question is not whether Firstbase is good — it is. The question is whether you are paying for a full compliance suite when a single information return is all the IRS wants from you. See our Firstbase alternative page for the side-by-side.
Firstbase annual compliance is bundled at roughly $999 to $1,499/yeardepending on plan tier and add-ons. That is the same broad range as Doola’s $1,999/year tier, and far above the flat $299 a standalone Form 5472 filing costs.
The headline Firstbase number is not a single line item — it is a bundle. Bookkeeping, registered agent, and tax prep are priced together, so you cannot easily carve out just the Form 5472 filing. For a founder who needs all of it, that is fair value. For a foreign owner whose LLC simply holds a Stripe balance and files one information return, it is hundreds of dollars of overlap.
| Provider | Annual price | What you actually file |
|---|---|---|
| Firstbase | $999-$1,499/year | Bundle incl. Form 5472 + 1120 |
| Doola | $1,999/year | Bundle incl. Form 5472 + 1120 |
| form5472.online | $547 | Form 5472 + pro forma 1120 |
| form5472.tax | $299 flat | Form 5472 + pro forma 1120 |
Source: published provider pricing; form5472.tax. Verified June 2026.
Run your own numbers on the cost comparison page, or see the full breakdown on our pricing page.
Yes — Firstbase prepares Form 5472 with a pro forma Form 1120 for foreign-owned LLCs that qualify. But no provider can e-file it: a disregarded entity must mail the return to Austin, TX or fax it to 855-887-7737, period.
This is the most misunderstood point in the whole category, so we will be blunt. A foreign-owned single-member LLC is a disregarded entity, and under T.D. 9796 it is treated as a corporation for Form 5472 reporting only. There is no electronic filing path for it. Whether you use Firstbase, Doola, or a flat-fee specialist, the only two accepted channels are mail and fax.
| Method | Where it goes |
|---|---|
| P.O. Box 149342, Austin, TX 78714-9342 | |
| Fax | 855-887-7737 |
Source: IRS Instructions for Form 5472 (foreign-owned U.S. DE). Verified June 2026.
So when a platform markets “automated compliance,” the actual submission is still a human putting paper in the mail or a fax machine. The value is in correct preparation, not magic e-filing. Our apply page explains exactly how we handle the mail-or-fax step for you.
Firstbase shines for venture-backed C-corps and founders who want one dashboard for everything: formation, registered agent, bookkeeping, payroll integrations, and the federal return. For complex US operations, that consolidation can be worth the $999+ a year.
We are not here to bury Firstbase. If you raised a round, have US employees, hold inventory, or run real revenue through a Delaware C-corp, the all-in-one model removes coordination headaches — your books, your agent, and your tax return live in one place and reconcile automatically. That is a legitimate reason to pay a premium, and many founders happily do.
Where the math turns is when the entity is a quiet, foreign-owned single-member LLC: no payroll, no inventory, maybe a Stripe or Mercury balance and a handful of transactions. For that profile, the only federal obligation is one information return. You are then paying bundle pricing for a single form. Our Doola vs Firstbase vs form5472.tax comparison maps which profile fits which provider.
The penalty is $25,000 per form, per year, per entity under IRC §6038A(d), with no cap and no statute of limitations (§6501(c)(8)). An additional $25,000 accrues every 30 days after a 90-day IRS notice goes unanswered.
This is why getting the filing done — by whichever provider — matters more than the brand name. Because there is no statute of limitations on an unfiled information return, a year you skipped in 2021 can still be assessed in 2026. The penalty does not care whether your LLC made a dollar; it is triggered by the missing form, not by profit.
Virtually every foreign-owned single-member LLC has a reportable transaction — funding the LLC counts — so almost all of them must file. We do not offer penalty abatement or IRS representation; our job is to file correctly and on time so the penalty never arises. The deadline is April 15, or October 15 with a Form 7004 extension.
No. Under FinCEN’s March 2025 interim final rule, US-formed entities — including foreign-owned US LLCs — are exempt from BOI reporting; only foreign reporting companies file. Form 5472 is a separate requirement and is still due regardless.
Some founders stay on a bundle because they fear losing “compliance coverage,” including BOI. Here is the current reality: per FinCEN’s March 2025 interim final rule, entities formed in the United States, including foreign-owned US LLCs, are exempt from beneficial-ownership information reporting. Only foreign reporting companies registered to do business in a US state must file BOI.
That means BOI is not a reason to overpay for an annual bundle. Form 5472, by contrast, is completely separate and remains mandatory for qualifying foreign-owned LLCs every single year. Switching providers does not touch either obligation — it just changes who prepares your return. See how switching works for the step-by-step.
Switch if your LLC is a foreign-owned single-member LLC with no payroll, no inventory, and one information return to file. You will pay $299 instead of $999-$1,499/year — the same Form 5472 plus pro forma 1120, saving $700+.
The decision is simple once you separate “what I am paying for” from “what I actually file.” If you genuinely use Firstbase’s bookkeeping, registered agent, and broader tax prep, stay. If you are paying bundle pricing to file one form, a specialist does that one form correctly for a flat fee.
| Factor | Firstbase | form5472.tax |
|---|---|---|
| Annual price | $999-$1,499/year | $299 flat |
| Form 5472 + pro forma 1120 | Yes | Yes |
| Filed by mail or fax | Yes | Yes |
| Bundled bookkeeping / agent | Yes | No — filing only |
| Best for | Funded C-corps, full ops | Quiet foreign-owned SMLLCs |
Source: published Firstbase plans; form5472.tax. Verified June 2026.
Ready to move? Start on the apply page, or read the Stripe Atlas review if you are comparing more than one platform.
Form 5472 and pro forma 1120, prepared, reviewed, and filed by mail or fax for a flat $299 — hundreds less than a Firstbase annual plan. Or message us first; we answer every question.