How to Form an LLC
in Maine

Maine charges a $175 Certificate of Formation filing fee for domestic LLCs under 31 MRSA § 1531, submitted online at maine.gov/sos or by mail to the Secretary of State Bureau of Corporations, Elections and Commissions in Augusta. Foreign LLCs (formed in another state qualifying to do business in Maine) pay a $250 Application for Authority filing fee. Eleet AI charges $324 all-inclusive for Maine LLC formation — that covers the $175 state fee, Certificate of Formation preparation, filing through the ME SOS portal, and first-year Maine registered agent service. National services commonly advertise Maine formation packages at $0–$149 then add the $175 state fee, a mandatory registered agent ($100–$299/yr), and various upsells, pushing the realistic first-year total to $325–$600+. Maine's $175 filing fee is mid-to-upper tier among US states — below MA $500, TX $300, NY $200 + publication, TN $300+, IL $150+, above cheaper-tier states (MT $35, KY $40, AR $45, CO $50, MI $50, MS $50, NM $50, IA $50).

Yes — Maine requires an $85 Annual Report filed online under 31 MRSA § 1665, due by June 1 each year (a fixed calendar date for all ME LLCs regardless of formation month). Foreign LLCs pay $150 for the annual report. Miss the June 1 deadline and the state imposes a $50 late fee ($135 total), and an LLC that fails to file for 2 years becomes administratively dissolved under 31 MRSA § 1592; reinstatement requires payment of all delinquent annual reports plus a $150 reinstatement fee. At $85/yr, Maine's annual report is roughly mid-pack — more expensive than many states (NE biennial $26, ND $50, SD $50, VA $50, MI $25, AR $150), cheaper than CA $800 minimum franchise tax, DE $300 franchise, MA $500, NY IT-204-LL varying by gross income, OR $100, FL $138.75. 10-year Maine state compliance cost = $175 formation + 9 × $85 = $940 total, which is mid-to-upper tier compared to neighbors NH ($1,002), VT ($160 formation + 9 × $35 = $475), MA ($5,000), and RI ($250 + 9 × $50 = $700). Eleet AI tracks your June 1 due date and sends a courtesy reminder 45 days before the deadline; optional $49 filing service covers the annual report preparation and submission on your behalf.

Maine has a three-bracket progressive personal income tax under 36 MRSA § 5111: 5.80% on taxable income up to $26,050 (single) / $52,100 (married filing jointly), 6.75% on income between those thresholds and $61,600 (single) / $123,250 (MFJ), and 7.15% on income above those upper thresholds. Indexed annually for inflation under 36 MRSA § 5111(1-E). For a Maine-resident single-member LLC with $150K pass-through income (single filer), state tax is roughly $9,700 — higher than ND 2.50%, IN 3.0%, PA 3.07%, UT 4.85%, MT 5.9%, CO 4.4%, but lower than OR 9.9%, MN 9.85%, NY 10.9%, CA 13.3%, HI 11%, NJ 10.75%. Maine is honest middle-of-pack on personal tax — not a low-tax state, not the highest. Corporate income tax on ME LLCs electing C-corp status is graduated 3.5%–8.93% under 36 MRSA § 5200 (3.5% up to $350K, 7.93% $350K–$1.05M, 8.33% $1.05M–$3.5M, 8.93% above $3.5M). Maine offers a Pass-Through Entity (PTE) tax election under 36 MRSA § 5206 (LD 1891, enacted 2021) at the top 7.15% entity level as federal SALT-cap workaround — beneficial for LLC members who itemize and hit the $10K federal SALT cap. Maine does NOT impose a franchise tax on regular LLCs; the Financial Institutions Franchise Tax under 36 MRSA § 5203 applies only to banks + trust companies.

Yes. Maine imposes a 5.5% state sales and use tax under 36 MRSA § 1811, with NO local city/county sales tax additions — one of the simplest US sales tax systems. Higher rates apply to specific categories: 8% on prepared food / meals / alcohol under § 1811(1-D), 9% on lodging (hotels, motels, B&Bs) under § 1811(1-D), 10% on short-term auto rentals under § 1811(4), and a 15% service provider tax under 36 MRSA § 2552 applies to a narrow list of services (telecommunications, fabrication, rental of furniture/machinery/video media, personal property rentals, dry cleaning, extended service contracts). Post-Wayfair, out-of-state remote sellers meeting Maine's $100,000 gross sales threshold under § 1951-B must register and collect Maine sales tax. Maine is a member of the Streamlined Sales and Use Tax Agreement (SSUTA). For a Portland retail LLC, Bangor restaurant LLC, or Bar Harbor B&B LLC, sales tax registration at Maine Revenue Services (maine.gov/revenue) is mandatory. Maine exempts most groceries from sales tax under 36 MRSA § 1752(3-B) (common with most US sales-tax states) but taxes prepared food + candy + soft drinks at 8%.

No. Maine does NOT authorize series LLCs. If you need a series structure (e.g., real-estate investor holding multiple rental properties in separate liability-segregated internal "series"), you must form in a series-LLC state (DE, IL, TX, IA, NV, OK, TN, UT, AL, VA, WY, KY, WI, IN, MO, ND, PR) and foreign-qualify into Maine. The Maine Revised Uniform Limited Liability Company Act at 31 MRSA Chapter 21 adopted RULLCA substantive provisions in 2011 but deliberately omitted the optional series-LLC article. Maine LLC members seeking asset-level liability separation typically form one LLC per asset (the "horizontal" structure) rather than one parent with series (the "vertical" structure), which is materially more expensive in Maine — $175 × N formations + $85 × N annual reports — but avoids the untested series-LLC caselaw issues that still concern courts in non-series states.

Yes — if you have real Maine coastal operations, ME is the natural formation state for lobster and seafood LLCs. Maine produces approximately 80% of US lobster by value (~100M lbs annually, ~$500M dockside value, ~$1.2B value-added after wholesale + retail + restaurant markup), licensed under 12 MRSA Chapter 619 through the Maine Department of Marine Resources (DMR). There are approximately 5,000 commercial lobster license-holders across seven DMR management zones (A–G), with ~4,000 apprentices on waitlists that typically take 5–20 years to graduate to Individual Trap Limits (Class I 300 traps, Class II 600, Class III 800). Major lobster-dependent operations: Maine Lobstermen's Association (trade group), Luke's Lobster (Portland HQ, ~40 shacks nationwide), Linda Bean's Perfect Maine Lobster (private), Ready Seafood (Saco — major wholesaler), Cozy Harbor Seafood (Portland), Inland Seafood, Cousins Maine Lobster (Shark Tank franchise), Maine Coast Seafood (York, wholesale), Highline Catering. Aquaculture is a growing vertical under 12 MRSA Chapter 605 (Aquaculture Leases) with Cooke Aquaculture (Atlantic salmon net-pen Jonesport/Cutler), Running Tide (kelp + carbon removal Portland), Ocean Farm Supply (Damariscotta River oysters), Glidden Point Oyster (Edgecomb), Pemaquid Oyster, Penobscot Bay scallop, Bangs Island Mussels (Casco Bay). Maine's broader seafood economy also includes groundfish (cod, haddock, pollock, flounder under NMFS New England Fishery Management Council limits), scallops (Georges Bank + Gulf of Maine quotas), shrimp (ME Pink Shrimp emergency-closed 2014 ongoing), herring + menhaden (bait + feed), seaweed harvest (~20M lbs wild rockweed + dulse + kelp). Honest disclosure: Maine's lobster fishery faces ongoing regulatory challenges — NOAA right whale protections under the Marine Mammal Protection Act + Endangered Species Act have driven closures + gear modifications (weak-link ropeless fishing gear trials), Canadian competition + climate warming shifting lobster populations north, and trap-limit waitlists blocking new-entrant capacity. ME Bureau of Corporations for DMR coordination + ME Revenue Services sales tax on lobster retail are the operational touchpoints for a new ME seafood LLC.

Standard processing at the Maine Secretary of State Bureau of Corporations is typically 5–10 business days for online filings through the SOS portal at maine.gov/sos, with most fully-complete online filings clearing in 7–10 business days. Paper filings by mail take 10–15 business days. Maine offers paid expedited processing tiers: $50 additional fee for 24-hour expedited review under 5 MRSA § 91 and $100 additional fee for immediate (same-day) processing when delivered in person to the Augusta office before 1 PM ET. Maine's standard processing is among the SLOWEST US states — comparable to NY 2–4 weeks standard, slower than most Midwest states (ND 1–3 days, KS 1–3 days, IA same-day), significantly slower than fast-processing states (ID same-day, MT same-day, OR same-day, WY 1 day, DE 1 day). For most new Maine LLC founders, the $50 24-hour expedite is worth it; Eleet AI includes expedited processing as an optional upgrade and standard filings typically deliver filed Certificate of Formation within 10 business days.

Yes. Under 31 MRSA § 1604 (the Maine Registered Agents Act), every Maine LLC must designate and continuously maintain a registered agent with a physical Maine street address — no P.O. boxes, no private mailbox services (UPS Store / PostNet / Mail Boxes Etc. addresses do not qualify), no virtual-office-only addresses. The agent must be available during normal business hours to accept service of process and official state correspondence. Maine uses standard "registered agent" terminology (not "resident agent" like MI/MD/MA, not "statutory agent" like AZ/OH). You can serve as your own registered agent only if you personally have a Maine street address where you are available during business hours. If you do not live in Maine, you MUST use a commercial registered agent with a ME physical address. Commercial registered agent services typically cost $100–$299 per year when purchased separately. Eleet AI includes first-year Maine registered agent service free with every ME LLC formation, then $100/yr after — the same flat rate we charge in all 50 states.

No to both. Maine has NO newspaper publication requirement (unlike New York 1101 LLCL § 206 $500–$2,000+ Dun & Bradstreet / Schneps Media, Arizona A.R.S. § 29-3201(C) 3-week county newspaper, Nebraska Neb. Rev. Stat. § 21-193 3-week publication, Pennsylvania 15 Pa. C.S. § 8821 one-time advertisement). You do not need to publish your LLC formation in any ME newspaper. Maine also has NO separate initial report filing requirement — the Certificate of Formation itself includes all initial disclosures, so there is no second-step document due 30/60/90/120 days after formation (unlike Louisiana La. R.S. 12:1305 60-day LLC initial report, Washington RCW 25.15.073 120-day, Alaska AS 10.50.750(a) 6-month Biennial Report). Maine's ONLY state-level formation-timeline filings are: (1) the one-time $175 Certificate of Formation at formation, and (2) the $85 Annual Report due every June 1 starting the calendar year AFTER formation. There is no second-step document, no newspaper cost, no 120-day initial report. FinCEN Beneficial Ownership Information (BOI) reporting is a separate FEDERAL filing required of all US LLCs within 30 days of formation, filed free at fincen.gov/boi — this applies regardless of state.

Yes — Maine is one of the best states in the US for defense-contracting LLCs supporting naval shipbuilding. Two Maine-anchored naval shipyards are strategically essential to the US Navy: (1) BATH IRON WORKS (BIW, Bath, ME — General Dynamics subsidiary since 1995, ~6,500 Maine employees) is the only US shipyard building Arleigh Burke-class DDG 51 guided-missile destroyers alongside HII Ingalls (Pascagoula MS), currently delivering the DDG 51 Flight III configuration with AN/SPY-6(V)1 radar, and completed the three Zumwalt DDG 1000 advanced-technology destroyers (USS Zumwalt, USS Michael Monsoor, USS Lyndon B. Johnson). BIW is a prime contender for the Constellation-class FFG(X) frigate construction (competing with HII Ingalls — Fincantieri Marinette Marine is the prime, but BIW is positioned for follow-on construction). BIW's cleared-contractor ecosystem supports Lockheed Martin (Aegis Combat System + VLS), Raytheon/RTX (AN/SPY-6 radar + SM-6 + Tomahawk), L3Harris (comms + EW), Northrop Grumman (AIMS + ESSM), BAE Systems (Mk 45 5-inch gun), Parker Hannifin (aux systems). (2) PORTSMOUTH NAVAL SHIPYARD (PNSY, Kittery ME — despite the "Portsmouth" name, the yard is across the Piscataqua River in Kittery, Maine) is ONE OF ONLY TWO US public naval shipyards with nuclear-submarine overhaul capability (the other is HII Newport News Shipbuilding in VA); PNSY specializes in Los Angeles-class (SSN 688) and Virginia-class (SSN 774) attack submarine refueling + overhaul + modernization, ~6,500 civilian employees, founded 1800, oldest continuously operating US Navy shipyard. PNSY cleared-contractor ecosystem supports General Dynamics Electric Boat (ONLY US SSN builder), HII, Bechtel, BWXT (nuclear reactor components), Honeywell FM&T Kansas City National Security Campus (weapons), Raytheon, Lockheed. Both yards support a deep professional-services + engineering-services + manufacturing-services LLC ecosystem in mid-coast Maine (Bath, Brunswick, Topsham, Wiscasset, Damariscotta) + southern Maine + York County (Kittery, York, Wells, Ogunquit, Saco). ME LLC formation at $175 + $85/yr is competitive cost-wise for a small-to-mid cleared-contractor services LLC, and Maine sales tax (5.5%) is lower than VA (5.3%–7%) or MS (7%) for BIW/PNSY subcontracting invoicing.