Maine Certificate of Formation (MLLC-6): File for $175 (2026)
Maine is the only state where forming an LLC still means a printer, a pen, a check, and an envelope to Augusta. That makes packet accuracy everything: a bounced filing costs weeks, not minutes. Here's every line of the MLLC-6, the expedite math, and an interactive checklist that rejection-proofs your envelope.
File the Certificate of Formation (Form MLLC-6) with the Maine Secretary of State for $175 — by mail or hand delivery only to 101 State House Station, Augusta, ME 04333. Pay by check/money order payable to "Maine Secretary of State" or by card with the payment voucher, and include a contact name with a phone number or email (missing it can bounce the filing). Standard processing runs roughly 2–3 weeks; add $50 for next-business-day or $100 for same-day service with a cover sheet — one expedite fee covers multiple same-entity documents.
- Filing fee
- $175
- Method
- Mail / hand delivery only
- Payee
- "Maine Secretary of State"
- Standard processing
- ~2–3 weeks + mail
- Expedite
- +$50 / +$100 + cover sheet
- Foreign LLC (MLLC-12)
- $250
What the Certificate of Formation Does
The Certificate of Formation is your LLC's birth certificate — Maine's name for what most states call Articles of Organization. When the Secretary of State files it, your LLC exists: liability protection attaches, the name is claimed, and you can bank and contract as the company. Maine processes it the old way: a human opens your envelope in Augusta and reviews the paper inside. There's no portal, no upload, no autosave — which means the envelope has to be right the first time.
Every Line of the MLLC-6
LLC name
With a valid designator, distinguishable from the record — verified in Step 1. If you reserved the name, your reservation covers this filing.
Filing date option
Effective on filing by default, or specify a later effective date if you want a clean-year start.
Designations (if applicable)
Low-profit LLC (L3C) or professional LLC checkboxes, if your entity is one.
Registered agent
Commercial agent by CRA number, or noncommercial agent by name and physical Maine street address — Step 2's decision.
Authorized person's signature
Signed and dated by an authorized person — unsigned forms are the classic bounce.
The cover essentials
A contact name plus phone or email (the instructions warn omissions can get erroneous filings returned), your $175 payment, and the expedite cover sheet if you're buying speed.
Rejection-Proof Your Envelope — Interactive Checklist
Tick each item as you assemble the packet. The tool tracks your readiness and won't call you mail-ready until everything's green.
MLLC-6 Envelope Rejection-Proofing Checklist
Every known bounce reason, in one list · tap to check off
Mail to: Department of the Secretary of State, 101 State House Station, Augusta, ME 04333. Hand delivery accepted at the same office.
The Expedite Math
| Tier | Cost | State Processing | Realistic Total (with first-class mail) |
|---|---|---|---|
| Standard | $175 | ~2–3 weeks | ~3–4 weeks door to door |
| Next business day | $225 | 24 hours | ~1 week (≈2–3 days if you overnight the envelope) |
| Same day | $275 | Same business day | ~1 week (≈1–2 days overnighted / hand-delivered) |
Two levers move your timeline: the expedite fee (state processing) and your delivery method (transit). The $50 tier plus an overnight envelope is the sweet spot — near-same-week formation for about $75 over base. And remember: one expedite fee covers multiple documents for the same entity delivered together, so a name reservation riding along costs no extra speed money.
After Approval: Your Immediate Next Moves
- File your stamped certificate somewhere safe the day it arrives back — banks want it, and note your formation date.
- Create your operating agreement — the document that overrides Title 31's defaults.
- Get your free EIN at IRS.gov, then register with Maine Revenue Services.
- Calendar June 1 — your first $85 annual report is due January 1–June 1 of the year after your formation year, and Maine will not mail you a form.
Ahmad Adil's Take: treat the MLLC-6 like a flight with no standby: you get one boarding, so check everything twice at the gate. My ritual for Maine clients — photograph every page and the check before sealing the envelope, send it with tracking, and put the expected-response date on the calendar. If nothing arrives two weeks past that date, call Augusta with your tracking number. Paper systems reward people who keep receipts; be one of them.
- ✓Forms your Maine LLC for $39 + the $175 state fee
- ✓Prepares and mails the paper-only MLLC-6 for you
- ✓Free Maine registered agent (commercial CRA) the first year
- ✓No upsells · No data selling · Privacy by Default
Disclosure: LLC School may earn a commission via this link, at no cost to you. See our advertising disclosure.
Maine LLC — FAQ

Ahmad Adil is the founder and CEO of LLC School. The figures here — the $175 mail-only Certificate of Formation (MLLC-6), the $85 June 1 annual report with its $50 late penalty, and Maine’s 5.8%–7.15% graduated income tax — reflect current Maine Secretary of State and Maine Revenue Services guidance. This is educational content, not legal or tax advice.
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