I have a US LLC, am I managing it right? A real checklist

12 verifiable items in 30 minutes. No-nonsense checklist for active LLC owners: IRS classification, Form 5472, BOI scope, Registered Agent, asset separation, taxation in your country and CRS/DAC reporting.

Running a well-kept LLC boils down to a checklist of 12 verifiable items in 30 minutes, aligned with the IRS's 4 critical checkpoints and the formation state's 4 critical checkpoints.

You have a US LLC and everything seems to work: you invoice clients, move money, pay your expenses. So far so good. But there's an uncomfortable question very few people ask in time: is it actually being managed correctly?

At Exentax we deal every week with people whose LLC is fully active and who only realise, once a problem is already on the table, that they have spent years operating with a half-closed structure. Not out of bad faith, but out of misinformation. The formation was sold as "ready to operate" and nobody bothered to explain the real ongoing obligations.

This article is a no-nonsense checklist. If you answer "no" or "I don't know" to several of these questions, you should review your structure before the <a href="https://www.irs.gov" target="_blank" rel="noopener">IRS</a> or your tax authority does it for you.

Why so many LLC owners are operating wrong without realising

The problem isn't the LLC itself. It's the ongoing management. Most services that form an LLC leave the client with three documents (Articles of Organization, EIN letter, Operating Agreement) and a "you're good to go". But properly managing an LLC involves:

• Annual compliance with the IRS and the state of formation
• Compliance with <a href="https://www.fincen.gov" target="_blank" rel="noopener">FinCEN</a> (BOI Report)
• Coherence between US taxation and your country of residence
• Real operational banking, fully separated from your personal assets
• Automatic reporting (CRS, DAC7, DAC8) that is already in motion

If in your head an LLC is still "an offshore company where nothing is reported", your information is years out of date. The reality today is very different.

The checklist in 7 blocks

1. Is your LLC correctly classified before the IRS?

By default, an LLC is a disregarded entity if it has a single member or a partnership if it has multiple. It does not pay federal income tax by itself: income flows through to the owner.

Ask yourself:

• Do you know for sure whether your LLC is Single-Member (disregarded) or Multi-Member (partnership)?
• Do you have the EIN letter from the IRS confirming that classification?
• Has any S-Corp or C-Corp election (Form 8832 / 2553) been filed without you realising?

A wrong classification completely changes your filing obligations and your real tax outcome. If you're unsure, don't assume, verify it.

2. Are you filing Form 5472 + Form 1120 every year?

If you are a non-resident with a Single-Member LLC and there has been any transaction between you and the LLC (draws, contributions, payments), you are required to file Form 5472 along with a pro-forma Form 1120. Every year. Without meaningful exceptions for the typical profile.

The base penalty for not filing or filing incomplete is USD 25,000 per form per year, and it stacks. It's not an abstract threat, the IRS does apply it. At Exentax, concern becomes controlled work: context, document, action and review.

See our <a href="/en/blog/form-5472-for-foreign-owned-llc">complete Form 5472 guide</a> for the details. If you can't recall whether you filed it in recent years, you may be accumulating unresolved filing exposure without seeing it in day-to-day operations.

3. Is your BOI/FinCEN scope review documented?

The Beneficial Ownership Information Report identifies beneficial owners only when the entity is in scope. After FinCEN's March 2025 interim final rule, the filing obligation narrowed to foreign reporting companies: entities formed outside the US and registered to do business in a state. A US-formed LLC owned by non-residents is not a default BOI filer under the current rule. The serious checklist item is therefore not “file BOI”; it is to keep a dated scope note, formation evidence, ownership records and any prior acknowledgement in the annual file. If the entity is actually in scope, the penalty regime is aggressive and the filing must be handled with the same discipline as any other compliance obligation.

Exentax turns this into a file decision: out of scope with evidence, needs review with missing documents, or in scope with deadline control and confirmation archived.

Ask yourself:

• Does your LLC fall within the current BOI Report scope (after FinCEN's March 2025 interim final rule, BOI only applies to "foreign reporting companies": entities formed outside the US and registered in a state; verify on FinCEN.gov)? If yes, was the BOI/FinCEN scope review documented when the LLC was formed?
• If in scope, do you have the confirmation, deadline control and any required update documented?
• Do you know who is monitoring those changes for you?

If your LLC is a US-formed entity owned by a non-resident, the most likely answer today is "out of scope, nothing to file" — and for greater privacy that is also our default recommendation.

4. Are your Registered Agent and state filings current?

Every LLC needs an active Registered Agent in its state of formation and, depending on the state, must file an Annual Report or pay a franchise tax. If you let the agent expire or skip the annual report, your LLC moves into "delinquent" status or is even "dissolved" and stops legally existing.

Warning signs:

• You don't know the name of your Registered Agent or how to reach them
• You have no automatic reminders of your state deadlines
• It's been over 12 months without any official communication from the state

If your LLC was dissolved and you keep invoicing with its EIN, every invoice can be challenged and your asset separation breaks down.

5. Do you keep personal money and LLC money separate?

This is the most common and most expensive mistake. If you use the LLC account for personal expenses, or you collect LLC invoices into your personal account, you are breaking the corporate veil. The consequence: your LLC stops protecting your personal assets and, in an audit, the LLC and you are treated as the same thing. Exentax gives the obligation a named owner, a due date and supporting evidence.

We cover this in depth in our piece on <a href="/en/blog/separate-personal-and-llc-finances-with-legal-shield">separating personal and LLC finances</a>.

Minimum checklist:

• LLC bank account (Mercury, Relay, Wise Business…) separate from your personal one
• Owner's draws documented with date and reference
• Capital contributions identified as such
• Zero personal expenses on the LLC card

6. Are you reporting correctly in your country of residence?

This is where most structures collapse. The fact that the LLC pays no federal income tax in the US does not mean you owe nothing back home. If you're a tax resident of Spain, the LLC's income is attributed to your IRPF as business income (see administrative doctrine, including the line reinforced in <a href="/en/blog/dgt-teac-and-feb-2020-boe-doctrine-on-the-us-llc">February 2020</a>). The same kind of attribution rules exist in most EU countries.

Ask yourself:

• Do you actually declare LLC income on your local tax return?
• Have you filed any required foreign-asset / foreign-account reports (Modelo 720/721 in Spain, equivalents elsewhere)?
• Does your local accountant actually understand how a US LLC works?

If your accountant told you "don't declare anything because it's taxed in the US", get a second opinion. Today. This is where most penalties stack up, and they are perfectly avoidable with proper planning. At Exentax, sensitive steps sit in one controlled workflow, not in scattered notes.

7. Are your banking, brokers and exchanges aligned with CRS and DAC?

Not every account reports in the same way. A US bank account held by an LLC sits in a US/FATCA and legal-access perimeter; a European Wise Personal account, a European IBAN or an exchange in a CRS/DAC jurisdiction can create automatic reporting. More detail in our <a href="/en/blog/wise-business-and-crs-for-us-llc-owners">Wise Business and CRS analysis</a>.

That means banking privacy exists, but it depends on entity, country and product. It is not bank secrecy or invisibility: there is KYC, AML, FATCA, reportable forms and formal cooperation where there is a legal basis. Your tax return, banking file and documents need to stay aligned.

Check:

• That you know which jurisdiction and reporting perimeter applies to each account
• That the tax residence declared on each platform is correct and consistent
• That your annual filings are coherent with those automatic reports

Warning signs that something is off

Beyond the checklist, these are the patterns we see when someone reaches Exentax with a poorly managed structure:

• They don't remember which state their LLC is formed in, or who their Registered Agent is
• They have never filed Form 5472 and don't know what it is
• They were told the BOI Report was "mandatory" without checking scope (after FinCEN's March 2025 rule, US-formed LLC owned by non-residents are out of scope and there is nothing to file)
• They mix personal and LLC accounts
• Their local accountant told them the LLC "doesn't need to be declared" in their home country
• They have crypto, brokers or foreign accounts with no local reporting
• There is no signed Operating Agreement, or they don't know where it is
• They receive letters from the IRS or the state and don't know what they mean

If three or more of those apply, you are not "flying under the radar", you are building up a liability that eventually surfaces.

Mistakes we see every week

With Exentax, the deadline is tied to a responsible person, a record and a practical action.

What to do if you find issues

First: stay calm and don't let more time pass. Most situations are fixable if you act with a clear head.

Typical steps in a clean-up:

1. Real diagnosis of the structure and the unfiled years
2. Ordered strategy: what to file first, what to update, what to communicate to your country of residence
3. Late filings to the IRS and FinCEN
4. State updates and reinstatement if the LLC was dissolved
5. Banking and operational reorder to stop generating new mistakes
6. Coordination with your local tax advisor to align local filings

At Exentax we work with people coming from generic accountants or "low cost" formation services that didn't include real ongoing management. We don't judge, we organise. More on the <a href="/en/blog/annual-llc-maintenance-irs-state-and-banking-control">real annual maintenance of an LLC</a> and on the difference between <a href="/en/blog/llc-residents-vs-non-residents-real-rules">US residents and non-residents</a> for LLC purposes.

What you should take away from this article

Having an LLC is not the same as having it well managed. The gap between the two is measured in avoidable penalties, tax-authority headaches and lost optimisation opportunities.

If after reading this checklist you still have doubts, the sensible move is to review now, before the problem appears. At Exentax we don't sell LLC: we structure real operations, manage compliance and coordinate banking, investing and international taxation. If you already have an LLC and you're not sure whether it's well structured, we'll review it with you and tell you what needs adjusting and what's already fine.

Book a strategic 30-minute review and let's go through it together. Better to spot today what needs to be fixed than to wait for the IRS or your tax authority to do it for you.

Use this checklist as a file review: if a bank, tax adviser or provider asked for evidence tomorrow, you should know where each document, deadline, transaction explanation and ownership record lives.

A correct LLC management checklist should end in evidence: current state status, EIN file, banking records, tax calendar, contracts, invoices, distributions and a clear separation between owner and company money.

> <a href="/en/book">Review my structure</a>

A checklist is only useful if it is tied to real evidence: documents, bank records, filings, invoices and decisions. This guide helps organise the review, but the LLC’s history determines what must be corrected.