After your articles of organization are accepted, the LLC exists on paper but isn’t ready to do business. What to do after filing an LLC breaks into a short list of urgent steps and a longer list of ongoing obligations: get a federal tax ID, write an operating agreement, open a business bank account, choose how the LLC will be taxed, start quarterly estimated payments, pick up the licenses your city and industry require, and calendar the annual report your state expects every year. Miss the wrong one and you can lose revenue, owe penalties, or forfeit the liability protection you formed the LLC to get.
Get Your EIN
An Employer Identification Number is the nine-digit number the IRS assigns to your LLC for tax reporting. You need it before you can open a business bank account, hire anyone, or file a return, so handle this first.
The IRS online application is the fastest route and issues the number at the end of the session. You can also submit Form SS-4 by fax (about four business days) or by mail (four to five weeks).1Internal Revenue Service. Instructions for Form SS-4
The application asks for the name and Social Security Number or ITIN of a “responsible party,” which the IRS defines as the individual who owns, controls, or manages the entity’s funds and assets. For most LLCs that’s a member or manager. If the responsible party changes later, you have 60 days to notify the IRS on Form 8822-B.2Internal Revenue Service. Responsible Parties and Nominees
Save the EIN assignment notice (sometimes called a CP 575 letter) somewhere secure. Banks, lenders, and state agencies will ask for it repeatedly.1Internal Revenue Service. Instructions for Form SS-4
Put an Operating Agreement in Writing
An operating agreement is the internal rulebook for how the LLC runs. Even if your state doesn’t require one, skipping it is one of the easiest ways to lose the liability protection the LLC provides. Without a written agreement, a court may view the LLC as indistinguishable from its owners, especially for single-member LLCs, and allow creditors to reach personal assets.
At a minimum, the agreement should cover:
- Ownership percentages and how profits and losses are split among members.
- Capital contributions at formation and whether future contributions can be required.
- Voting and decision-making rules, including what happens when members disagree.
- Whether the LLC is member-managed or manager-managed, and what each role can do without a vote.
- Transfer of interests when a member wants to sell, dies, or becomes incapacitated.
- Withdrawal procedures and buyout terms.
Every member should sign. Store the original alongside your articles of organization, EIN notice, and any amendments. Banks and investors will request a copy to verify the company’s structure and authorized signers.
Open a Dedicated Business Bank Account
A separate bank account is what keeps the “limited liability” in your LLC meaningful. When owners mix personal and business funds, courts treat that as evidence the LLC is just an alter ego, which can justify piercing the corporate veil and holding owners personally responsible for business debts.
Bring your certified articles of organization, your EIN confirmation notice, and your operating agreement. The bank will have you sign a corporate resolution or signature card identifying who can access the account and authorize transactions.
Expect the bank to ask for identifying information on anyone who owns 25% or more of the LLC. Federal anti-money-laundering rules require financial institutions to verify the identity of the individuals who own or control legal entity customers.3FinCEN. CDD Final Rule Have each qualifying member’s government-issued ID ready.
Once the account is open, use it for every business transaction. The moment you start paying personal bills from the business account or depositing business income into a personal one, you’ve built the paper trail a plaintiff’s lawyer needs.
Decide How Your LLC Will Be Taxed
The IRS has no dedicated “LLC” tax category. By default, a single-member LLC is treated as a disregarded entity and a multi-member LLC is treated as a partnership.4Internal Revenue Service. LLC Filing as a Corporation or Partnership Under either default, business income flows through to your personal return and is subject to self-employment tax.
You can change that default with one of two elections. Form 8832 elects C corporation treatment, which subjects distributed profits to a second layer of tax at the shareholder level.5Internal Revenue Service. About Form 8832, Entity Classification Election Form 2553 elects S corporation treatment, which lets working members pay themselves a reasonable salary (subject to payroll taxes) and take remaining profits as distributions that avoid self-employment tax. The S election must be filed no more than two months and 15 days after the start of the tax year you want it to cover.6Internal Revenue Service. Instructions for Form 2553
The S-corp election is where many LLC owners find real savings. Self-employment tax runs 15.3% (12.4% Social Security plus 2.9% Medicare), and in 2026 the Social Security portion applies to the first $184,500 of combined earnings.7Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)8Social Security Administration. What Is the Current Maximum Amount of Taxable Earnings for Social Security Splitting income between salary and distributions can reduce how much gets hit with that 15.3%. The trade-off is payroll processing, W-2s, and a separate corporate return on Form 1120-S.
Doing nothing leaves you on the default. That’s fine for many LLCs early on. If revenue grows, the classification is worth revisiting with a tax professional before the two-month-and-15-day window closes on you.
Start Quarterly Estimated Tax Payments
LLC members owe taxes on business income as it’s earned, not once a year at filing time. The IRS expects quarterly estimated payments. For the 2026 tax year, the deadlines are:
- First quarter: April 15, 2026
- Second quarter: June 15, 2026
- Third quarter: September 15, 2026
- Fourth quarter: January 15, 2027
You can skip the January payment if you file your full 2026 return and pay the balance by February 1, 2027.9IRS.gov. Form 1040-ES – Estimated Tax for Individuals
The underpayment penalty is calculated on how much you underpaid and how long the money was late. You avoid it if you owe less than $1,000 at filing, or if you paid at least 90% of the current year’s tax or 100% of the prior year’s tax, whichever is less. If your adjusted gross income exceeded $150,000 last year, the prior-year safe harbor rises to 110%.10Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty
New LLC owners routinely underestimate the first-year bill because they forget about self-employment tax on top of income tax. Budget for both and park the money in a separate savings account so it’s there when each deadline comes.
Get the Licenses and Permits You Need
Formation documents don’t authorize you to operate in a particular city or county. Most local governments require a general business license for commercial activity, and specific industries (construction, food service, healthcare, cosmetology, accounting) add professional licenses on top.
Start with the city or county clerk’s office to find out what applies to your business type and location. Zoning permits may come into play for a storefront or a home office. Some permits require proof of liability insurance or site plans before approval. Fees range from under $50 to several hundred dollars, and specialized professional licenses can cost more.
Operating without required licenses can trigger fines, forced closures, or voided contracts.
Sales Tax Registration
If the LLC sells taxable goods or services, most states require you to register for a sales tax permit and collect tax at the point of sale. The obligation kicks in once you have nexus with a state, either physical (an office, warehouse, or employees there) or economic (exceeding a sales threshold). The most common economic nexus trigger is $100,000 in annual sales into a state, though some states set it higher or lower.
Registration is typically free through the state’s department of revenue. You’ll then file periodic returns (monthly, quarterly, or annually depending on volume) remitting what you collected. Collecting without a permit and failing to collect when you should both carry penalties. Sort this out before your first sale.
File the Annual Report to Stay in Good Standing
Most states require LLCs to file an annual or biennial report with the Secretary of State confirming the company’s basic information. The report typically asks for the business address, names of members or managers, and the registered agent’s contact details. Fees vary widely — some states charge nothing, others charge several hundred dollars.
This is where LLCs quietly lose their status. Miss the filing deadline and you owe late fees. Let it slide long enough and the state will administratively dissolve or suspend the LLC, stripping away your liability protection and your ability to enforce contracts or file lawsuits in the company’s name. Reinstatement is possible but involves back fees and penalties.
Your registered agent (the person or service authorized to accept legal documents for the LLC) must stay current too. If the agent’s address changes, file an amendment with the Secretary of State immediately. A lapse in registered agent service can mean you miss a lawsuit filing deadline, and “I didn’t receive it” is not a defense courts find persuasive.
If You Hire Employees
Bringing on employees triggers a separate set of obligations. You’ll register with your state’s labor department for unemployment insurance tax and set up payroll withholding for federal income tax, Social Security, and Medicare. Each new hire completes Form I-9 (work eligibility) and Form W-4 (withholding preferences).
Workers’ compensation insurance is required in nearly every state for businesses with employees. Which employees are covered, what company size triggers the requirement, and how much coverage is needed all vary by state. Failing to carry the required coverage can result in fines, personal liability for workplace injuries, and in some states, criminal charges.
Most small LLC owners are better off using a payroll service or accountant than handling payroll themselves. Deadlines are frequent, late-deposit penalties are steep, and the IRS treats payroll tax violations more seriously than almost any other small-business compliance issue.
Carry Business Insurance
The LLC’s liability shield protects your personal assets from most business debts, but it doesn’t protect the business itself from lawsuits, property damage, or professional errors. Insurance fills that gap.
General liability insurance covers third-party claims for bodily injury, property damage, and advertising injury. If the LLC provides professional services or advice, errors and omissions (professional liability) coverage protects against negligence claims. Commercial property insurance covers equipment, inventory, and office space.
Beyond workers’ compensation, no single type of business insurance is universally required by law. But commercial landlords, clients, and licensing boards often require proof of coverage before signing a lease, awarding a contract, or issuing a permit. Going without means one bad incident can wipe out what the business has built.
You Probably Don’t Need to File a Beneficial Ownership Report
If you’ve heard that LLCs must file Beneficial Ownership Information reports with FinCEN under the Corporate Transparency Act, that requirement has changed. In March 2025, FinCEN published an interim final rule exempting all entities created in the United States from BOI reporting.11Federal Register. Beneficial Ownership Information Reporting Requirement Revision and Deadline Extension Reporting requirements now apply only to entities formed under foreign law that have registered to do business in a U.S. state or tribal jurisdiction.12FinCEN. Beneficial Ownership Information Reporting
If your LLC was formed in any U.S. state, you don’t need to file a BOI report, update a previously filed one, or correct one. Plenty of outdated guidance online still says otherwise.