What a DIY LLC Really Costs in 2026: Looking Past the State Filing Fee

What does it cost to form an LLC on your own?

Forming an LLC on your own costs the state filing fee ($35 to $500, depending on the state) plus whatever you spend covering the tasks a formation service would otherwise handle. Several of those tasks can be done for free if you have the time and an in-state address. Others recur every year no matter who files.

Up-front costs of filing yourself

• State filing fee. The Articles of Organization (some states call it a Certificate of Organization or Certificate of Formation) carry a one-time fee of $35 to $500, and the fee is often nonrefundable even if the filing is rejected.
• EIN. $0. The IRS issues Employer Identification Numbers free, through its online application or Form SS-4.
• Registered agent. $0 if you serve as your own agent, which requires a physical street address in the state and someone available there during normal business hours. Commercial registered agent services are commonly priced at roughly $100 to $300 a year.
• Operating agreement. $0 if you complete a template yourself. Attorney-drafted agreements cost more, and fees vary widely by market and complexity.
• Optional extras. Name reservations, expedited processing, certified copies, and a DBA (assumed name) each carry separate state or local fees. DBA filing fees alone can run anywhere from $5 to $150.

Ongoing costs after the LLC is approved

• Annual or biennial report fees. These range from $0 in states such as Arizona, Missouri, and Ohio to $500 a year in Massachusetts. A $0 fee does not always mean no filing; some states still require a no-fee information report.
• State franchise or privilege taxes. Some states tax LLCs simply for existing there. Delaware, for example, charges LLCs a flat $300 annual tax, and it applies even though Delaware LLCs file no annual report.
• Registered agent renewals if you hire one.
• License and permit renewals at the state, county, or city level, which run on their own calendars.
• Your time. Reading state notices, logging into portals, and remembering deadlines is unpaid work that falls entirely on the owner.

Easy-to-miss costs that DIY budgets leave out

• The first annual report, which in many states comes due about a year after formation, long after the formation paperwork is forgotten.
• Privacy: listing your home as the registered agent address puts it on the public record.
• Paid "EIN filing" websites that charge for a number the IRS provides for free.
• Payments to third parties for BOI filings that a domestic LLC no longer has to make (covered below).
• Articles of Amendment to fix a typo or wrong address after approval, each with its own state fee.
• Reinstatement fees and back penalties if the state administratively dissolves the LLC.

What does it cost when a DIY filing goes wrong?

Most DIY mistakes are cheap to fix when caught early and expensive mainly because of how long they take to surface. The common ones fall into a handful of categories.

What happens if your registered agent misses a lawsuit?

Every state requires an LLC to keep a registered agent with a physical in-state street address who is available during business hours to accept service of process and official notices. Owners who list themselves often miss deliveries while traveling, after moving, or simply by not being present during the day. If legal papers go unanswered, a court can enter a default judgment against the LLC, and the owner may not learn of the lawsuit until the judgment arrives. Using a home address also places that address on the public record.

What happens if you miss the annual report?

Missing an annual report or state tax payment typically triggers a late fee, then loss of good standing, and eventually administrative dissolution if the problem continues. The first report is the one owners miss most, since it usually comes due about a year after formation with no reminder beyond a state notice that may go to an outdated address. Delaware shows how the costs stack: missing the $300 annual tax brings a $200 penalty plus interest of 1.5% per month on both the tax and the penalty, and an LLC that misses the June 1 deadline falls out of good standing, so the state will not file documents for it or issue a certificate of good standing. Lenders, landlords, and some clients ask for that certificate, so a lapse can stall a loan or a lease, not just cost a fee. Reinstatement after dissolution generally requires paying the overdue amounts plus a reinstatement fee set by the state.

What are the most common EIN mistakes?

An EIN is free from the IRS, and the most common errors come from timing and details rather than cost. The three that cause the most trouble:

• Applying before the state has approved the LLC, which can tie the EIN to an entity that does not yet exist or carries a different name.
• Naming the wrong responsible party. The IRS expects an individual who owns or controls the entity.
• Choosing a tax classification without understanding it. A later change, such as electing corporate treatment on Form 8832 or S corporation status on Form 2553, means new paperwork and new deadlines.

Paid "EIN filing" sites that look official charge for a number the IRS issues at no cost. Apply directly through the IRS.

Does a domestic LLC have to file a BOI report?

No. Under current FinCEN guidance, an LLC formed in the United States does not have to file a Beneficial Ownership Information report. FinCEN's final rule, effective August 14, 2026, permanently removed the reporting requirement for U.S. companies and U.S. persons under the Corporate Transparency Act, and under it no domestic entity, whatever its size or structure, owes initial, updated, or corrected BOI reports. The requirement now applies only to certain foreign-formed entities registered to do business in the United States. FinCEN estimates that roughly 28,000 companies remain subject to reporting, compared with about 32.6 million under the original 2022 rule.

The DIY mistake today runs the other way: assuming a BOI filing is owed, or paying someone to submit one, when current guidance does not require it for a domestic LLC. Check FinCEN's BOI page for current guidance before paying anyone for this service.

What happens if you skip the operating agreement?

Most states do not require an operating agreement, so many owners skip it, and that leaves the state's default LLC rules to settle disputes over profits, management, and what happens when a member leaves. It matters for single-member LLCs too. A written agreement helps show the separation between owner and business that courts look for when deciding whether to respect the LLC's liability shield. The document itself can cost nothing; the cost of not having one shows up later.

How do you fix a mistake on an LLC filing?

How you fix a filing error depends on when it is caught. A rejected filing is corrected and resubmitted, and the original fee is often nonrefundable. An error found after approval, such as a misspelled name or wrong address, requires Articles of Amendment, a separate filing with its own state fee. Neither fix is usually expensive on its own. The larger cost is the time spent finding the error, especially when it surfaces during a bank application or a contract signing.

Ready to form your LLC with less to track?

If you would rather spend your first year building the business than watching state deadlines, ZenBusiness's LLC formation service handles the filing and helps keep annual reports and registered agent duties on schedule, with plans starting at $0 plus your state's fee. Compare the tiers against your state's ongoing fees, and choose the one that covers the tasks you are least likely to keep up with yourself.