How to form an LLC in Maine

Maine's LLC costs are moderate, but formation is slower than most states because the initial filing is made on paper. This guide covers the filing, expedite options and the June 1 annual report.

By Mirza Fahad Baig, Chartered Accountant. Reviewed by Muhammad Bilal, Chartered Accountant. Checked against official sources on . 3 minute read.

Short answer

To form an LLC in Maine, file a Certificate of Formation (Form MLLC-6) with the Maine Secretary of State and pay $175. Maine currently takes the initial formation on paper, by mail or delivery, and processing can take several weeks unless you pay to expedite. Each year, file an $85 annual report between January 1 and June 1, starting the year after formation.

At a glance

State filing fee
$175
Form
Certificate of Formation, MLLC-6
Filing method
Paper, by mail or delivery
Processing
Can take several weeks; expedite available
Annual report
$85, by June 1
Late annual report
$50 penalty
How to form an LLC in MaineState filing fee: $175; Form: Certificate of Formation, MLLC-6; Filing method: Paper, by mail or delivery; Processing: Can take several weeks; expedite available; Annual report: $85, by June 1; Late annual report: $50 penalty.KEY FACTS AT A GLANCEHow to form an LLC in MaineState filing fee$175FormCertificate of Formation,MLLC-6Filing methodPaper, by mail ordeliveryProcessingCan take several weeks;expedite availableAnnual report$85, by June 1Late annual report$50 penaltyChecked against official sourcesTax BakersHow to form an LLC in MaineState filing fee: $175; Form: Certificate of Formation, MLLC-6; Filing method: Paper, by mail or delivery; Processing: Can take several weeks; expedite available; Annual report: $85, by June 1; Late annual report: $50 penalty.KEY FACTS AT A GLANCEHow to form an LLC in MaineState filing fee$175FormCertificate of Formation, MLLC-6Filing methodPaper, by mail or deliveryProcessingCan take several weeks; expedite availableAnnual report$85, by June 1Late annual report$50 penaltyChecked against official sourcesTax Bakers
Key facts at a glance, as set out in this guide.

Who should form an LLC in Maine?

Anyone who lives in Maine or runs their business from there. If you form in another state but operate in Maine, you will usually have to register there as a foreign LLC anyway, paying both states' fees. See home state or another state.

How do you form an LLC in Maine, step by step?

  1. Choose and check the name

    Search the state's business records and include "LLC", "L.L.C." or "Limited Liability Company" in the name.

  2. Appoint a registered agent

    A person or company with a physical street address in Maine. See what a registered agent is.

  3. File the Certificate of Formation

    On paper: complete Form MLLC-6, print it and mail or deliver it to the Secretary of State with the $175 fee. The Secretary of State's posted processing estimates for business filings have run to several weeks, so consider the paid expedite options if timing matters.

  4. Get an EIN and sign an operating agreement

    The EIN is free from the IRS. See LLC operating agreement.

  5. Register for state taxes

    Sales tax and payroll as needed. Then note the first yearly filing date.

What does Maine require every year?

An annual report each year, $85, filed between January 1 and June 1, starting the year after the LLC is formed. It can be filed online. A report filed after June 1 carries a $50 late penalty, and an LLC that keeps missing reports can be administratively dissolved.

For deadlines, fees and late penalties in detail, see Maine LLC yearly filings.

How long does formation take in Maine?

Longer than in states with instant online filing. The Secretary of State has posted processing estimates of several weeks for business filings at busy times, and paper filings also take mailing time. Paid expedited handling is available. If you need the LLC by a specific date, for example to sign a lease, file well in advance or expedite.

What do the first two years cost?

ItemCost
Certificate of Formation$175
Expedited handling, optionalExtra fee
First annual report, by June 1 the following year$85

Should you file it yourself or use a formation service?

Filing yourself costs only the state fee, and the Maine filing is short enough for most owners to complete. A formation service saves time, can act as your registered agent and may send reminders for yearly filings, but compare total yearly costs: low headline prices are often paired with paid add-ons such as expedited filing, operating agreements or EIN applications, which you can do yourself free. Whichever you choose, keep the approved filing, the EIN letter and your operating agreement together. See how much an LLC costs.

Can a non-resident form an LLC in Maine?

Yes. Maine has no residency or citizenship requirement for an LLC's members or managers. You need a registered agent with a Maine street address and an EIN; a foreign owner without a Social Security number applies for the EIN on Form SS-4. A single-member LLC owned by a foreign person files Form 5472 with a pro forma Form 1120 every year, even with no US income. See can a non-resident own a US LLC and annual filings for foreign-owned LLCs.

What happens if you miss a required report?

The state usually charges a late fee and marks the LLC as not in good standing, which can block a certificate of good standing, a bank account or a loan. If the filing stays overdue, the state can administratively dissolve the LLC, ending its liability protection and its claim to the name. Reinstatement means filing every missing report and paying the fees owed, so put the dates in your calendar. See reinstating a dissolved LLC.

Which Maine taxes apply to an LLC?

Owners pay Maine's graduated individual income tax on their share of profit. The state sales tax is 5.5%, with higher rates for meals, lodging and some other items; register with Maine Revenue Services if you sell taxable goods or services.

If you sell online, see Maine sales tax for online sellers.

Federally, a Maine LLC is taxed like any other LLC. See how LLCs are taxed. For a side-by-side view of state costs, see how much an LLC costs.

Want your Maine LLC formed?

We file your Certificate of Formation, arrange the registered agent and EIN, and keep track of every Maine deadline for you.

Questions people ask

How much does it cost to form an LLC in Maine?

$175 for the Certificate of Formation.

Can I form a Maine LLC online?

The initial Certificate of Formation is currently filed on paper; annual reports can be filed online.

When is the Maine LLC annual report due?

Between January 1 and June 1 each year, starting the year after formation.

What is the Maine annual report late fee?

$50 if filed after June 1.

Sources

Every fee, date and rule on this page was taken from these official and primary sources.

  1. Maine Secretary of State: Corporations, UCC and Commissions
  2. Maine Revenue Services
  3. IRS: Get an employer identification number
  4. IRS: Employer identification number, including international applicants

Rules and fees change. If you are reading this long after October 1, 2026, confirm the figures with the source before you rely on them.

More in State LLC formation

This guide is general information. It is not tax or legal advice for your situation.