You Formed a US LLC, Now What? The Compliance Checklist

Written by CA Sumit ChandwaniChartered Accountant & Founder · Reviewed by Minal Bihani, EA

Plenty of formation services will register your LLC in a few clicks and then go quiet, leaving you to discover, often the hard way, that forming the company was just the beginning. An LLC is a living legal entity with ongoing obligations, some of which carry serious penalties. Here's the post-formation checklist that keeps your company in good standing.

1. Get your EIN

Your federal tax ID is the foundation for everything else, banking, taxes, payment processing. US residents get it instantly online; non-residents file Form SS-4 by fax or mail. Don't try to operate or open accounts without it.

2. File your BOI report with FinCEN

The Beneficial Ownership Information (BOI) report identifies the individuals who ultimately own or control your company, filed with FinCEN. Reporting requirements and deadlines have evolved, so confirm the current rules, but for many companies this is a required filing with penalties for non-compliance. It's easy to overlook because it's newer than the traditional formation steps.

3. Set up a registered agent

Every US LLC must maintain a registered agent in its state of formation, a person or service with a physical address there to receive legal and official mail. If you formed out of state or you're a non-resident, this is non-negotiable, and it's an ongoing annual cost. Letting it lapse can put your LLC out of good standing.

4. Handle Form 5472 if foreign-owned

If your LLC is 25% or more foreign-owned, Form 5472 (with a pro-forma 1120) is very likely required, even with no income, and the penalty for missing it starts at $25,000 per year. This is the single highest-stakes item on the list for non-resident owners. Don't assume it doesn't apply to you.

5. Know your state annual obligations

Most states require an annual or biennial report and may charge a franchise tax or fee to keep your LLC active. Miss these and your LLC can fall out of good standing or even be administratively dissolved. The specifics vary by state, so confirm what your formation state requires and calendar the deadlines.

6. Open a US business bank account

Keeping business and personal finances separate isn't just good practice, it's what preserves the liability protection an LLC is supposed to give you. Mixing funds ("commingling") can undermine that protection. With your EIN and formation documents, open a dedicated business account and run everything through it.

7. Set up bookkeeping from day one

Clean books from the start make every later obligation, taxes, 5472, financing, dramatically easier. Connect your bank account to QuickBooks or Xero and record transactions as you go, rather than reconstructing a year later. This is the cheapest insurance you'll buy.

8. File your taxes correctly

Finally, your LLC has annual tax filing obligations that depend on how it's taxed and where it operates, federal, state, and potentially multi-state. The classification you chose at formation (or defaulted into) determines the forms. Getting this right closes the loop on compliance.

Building a compliance calendar

The single most effective thing you can do after forming an LLC is to build a calendar of recurring obligations so nothing sneaks up on you. That calendar should include your federal and state income tax deadlines, any state annual or biennial report dates, your registered agent renewal, franchise tax due dates, and, if you're foreign-owned, the Form 5472 deadline. Many of these obligations are annual and easy to forget precisely because they come around only once a year. A simple calendar with reminders converts a scattered set of risks into a managed routine, and it's the cheapest insurance against falling out of good standing.

What 'good standing' actually means

"Good standing" is your LLC's status with its state, confirmation that you've kept up with required filings and fees. It matters more than it sounds. If you fall out of good standing by missing annual reports or franchise taxes, you can face penalties, lose the right to do business or bring lawsuits in that state, and in extreme cases have your LLC administratively dissolved. Restoring good standing after a lapse is more expensive and time-consuming than simply maintaining it. Banks, partners and investors may also check your standing, so keeping it clean protects your reputation as well as your legal status.

The liability protection you could accidentally lose

People form LLCs largely for liability protection, the separation between business and personal assets. But that protection isn't automatic or permanent; it depends on treating the LLC as a genuine separate entity. Mixing personal and business funds, failing to maintain the entity properly, or ignoring formalities can give a court grounds to "pierce the corporate veil" and reach your personal assets. Maintaining a dedicated business bank account, keeping clean books, and staying compliant aren't just bureaucratic chores, they're what preserves the core benefit you formed the LLC for in the first place.

When to bring in help

Some compliance is simple enough to self-manage; some isn't. If you're a US resident with a single-state LLC and straightforward taxes, you may handle much of this yourself with a good calendar. But once foreign ownership, multiple states, or meaningful revenue enter the picture, the obligations multiply and the penalties for mistakes grow. That's the point at which having a firm manage your compliance, EIN, BOI, 5472, annual reports and tax filings, pays for itself, because a single missed high-stakes filing can cost more than years of professional support.

Compliance as an ongoing discipline

The thread running through every item on this checklist is that an LLC isn't a one-time setup, it's an ongoing relationship with the IRS, your state, and (for foreign owners) FinCEN. The formation moment gets all the attention, but it's the quiet annual obligations that actually keep your company alive and protected: the reports, the franchise taxes, the registered agent, the tax filings, and the high-stakes items like Form 5472 and BOI. None of these is individually difficult, but together they require a system, a calendar, reminders, and a clear owner for each task. Businesses that treat compliance as a discipline rather than an afterthought keep their good standing, preserve their liability protection, and avoid the penalties that catch less organized owners off guard. Build that system yourself, or let a firm carry it, but don't let the work that follows formation become the work nobody does.

Frequently asked questions

What are the main ongoing requirements for a US LLC?

Typically: maintaining a registered agent, filing state annual or biennial reports, paying any franchise tax or fees, filing federal and state taxes, and, for foreign-owned LLCs, Form 5472. The BOI report to FinCEN may also apply. Requirements vary by state.

What is the BOI report?

The Beneficial Ownership Information report identifies the individuals who ultimately own or control your company, filed with FinCEN. Requirements and deadlines have evolved, so confirm the current rules, but for many companies it's a required filing with penalties for non-compliance.

What happens if I miss a state annual report?

Your LLC can fall out of good standing, incur penalties, and in extreme cases be administratively dissolved. Restoring good standing afterward is more costly than maintaining it, so calendar these deadlines from the start.

The bottom line

Forming the LLC is the easy, visible part; staying compliant is the ongoing work that actually protects you. The highest-stakes items, Form 5472, the BOI report, annual reports and a registered agent, are exactly the ones budget formation services tend to skip. MOREOFTAX forms your company and handles the compliance that follows, from EIN and BOI to 5472 and annual filings. Get a free quote and keep your LLC in good standing.