All states › Maine
Every step to open an LLC in Maine and get ready to hire, in order, with the official state page for each one. Agencies you'll deal with: Secretary of State (Bureau of Corporations, Elections and Commissions) · Maine Revenue Services · Department of Labor (Bureau of Unemployment Compensation, Bureau of Labor Standards) · Maine Paid Leave · Workers' Compensation Board · Maine Retirement Savings Board (MERIT).
This is the most common path: a new LLC, general business, paying W-2 employees and 1099 contractors. Adding a location, forming a corporation, or in a licensed industry? Customize it and check off steps as you go.
Customize this checklistPopular Maine business types:
Do this first. The state tax and payroll accounts ask for your registration details.
Apply free on the IRS website and get the number immediately. You'll need it for the state tax registration, a business bank account, and payroll. Opening a new location? You already have one; the same EIN works in every state.
This internal document sets out who owns what, how decisions get made, and what happens if an owner leaves. It isn't filed with the state, but banks often ask for it, and it helps protect your liability shield. Single-owner LLCs need one too.
Bring your EIN letter, filed formation documents, and operating agreement or bylaws. Keeping business and personal money separate is one of the main things that protects your personal assets.
Many businesses need a license or permit before opening, separate from registering the company. Check three levels: the state licensing board for your field, your city or county, and any federal agency that regulates your industry.
If you want S corp taxation, file IRS Form 2553. The deadline is tight: generally within 2 months and 15 days after the start of the tax year you want it to apply. See Business basics for when it makes sense.
File Articles of Organization (or the state's equivalent) online through Secretary of State online filing (Bureau of Corporations, Elections and Commissions).
Changing your registered agent costs $35 (form CLKRA-3).
Entities file a Statement of Intention to do Business under an Assumed Name (ASUM-5) with the Secretary of State. Foreign entities can instead file a $40 fictitious name statement (FICT-4).
LLC certificate of formation is form MLLC-6. Corporation articles are form MBCA-6.
Register for withholding and sales/use tax on the Maine Tax Portal (revenue.maine.gov, 'Register a New Business') or with the paper Application for Tax Registration. Withholding accounts need an FEIN, and Form 941ME is filed quarterly online even with zero withholding.
No local income or payroll taxes confirmed. Portland has its own minimum wage ($16.75 in 2026).
Applies if you sell products, or services this state taxes. Most medical care is exempt. See Business basics for sales tax.
Maine calls it a Retailer Certificate. Register with the Maine Revenue Services through Maine Tax Portal before you make your first taxable sale in Maine. You'll collect tax from customers and send it to the state.
Give your supplier Maine Resale Certificate so you don't pay tax on inventory you'll resell. Issued by Maine Revenue Services to registered retailers with at least $3,000 in yearly gross sales; it expires and MRS mails a new one each period. Keep certificates your own customers give you, too.
Out-of-state sellers must register once sales into Maine pass $100,000 (previous or current calendar year), even with no office here.
Higher rates apply to some items: 8% prepared food, 9% lodging, 10% short-term auto rental, and 14% adult-use cannabis starting January 1, 2026.
Applies once you pay W-2 employees who work in this state.
Form I-9 is never mailed to the government. You keep it in your own files and show it only if ICE or the Department of Labor asks for an inspection.
Federal posters (minimum wage, EEO, FMLA if you have 50+ employees, and others) go alongside the state ones.
Register once you pay wages to employees working in Maine. Reports and payments are usually quarterly.
Maine Paid Family and Medical Leave is funded by a 1% premium on wages (0.5% for employers with fewer than 15 employees). Contributions started with paychecks on or after January 1, 2025, and benefits started May 1, 2026. The same rates apply through 2027.
Required at 1 or more employees. Some agricultural/aquacultural and domestic employers are exempt. LLC owners and sole proprietors without employees need not be covered. MEMIC is the insurer of last resort. Failing to insure is a Class D crime with civil penalties up to $10,000 or 108% of premium, whichever is larger.
Also report independent contractors within 7 days once payments in a year reach $2,500 or more (or a contract for that amount is signed).
Maine's wage payment rules:
$15.10 an hour.
Employers with more than 10 employees for more than 120 days in a year must provide Earned Paid Leave. It can be used for any reason.
Employers with 5 or more Maine employees that have been in business for 2 years and do not offer a retirement plan must register and run payroll deductions. Employers that newly qualify must register by June 30 of that year. Employers that failed to register face fines.
Employers with 15 or more employees must train new employees within 1 year of hire. Supervisors and managers get extra training within 1 year of hire or promotion. Keep training records for at least 3 years.
Display the state's required labor law posters where employees can see them, along with the federal posters. Workers' comp notices come from your carrier.
Every employer with Maine employees must register with Maine Paid Leave and file quarterly premium reports, even with only one employee. This is separate from UI and tax registration.
With 5+ Maine employees, 2 years in business and no retirement plan, register with MERIT and set up payroll deductions.
The W-9 gives you the contractor's legal name and tax ID for their 1099. Check the classification first: if you control how and when they work, they may legally be an employee.
File with the IRS and send the contractor a copy by January 31. For payments made in 2026 and later, the reporting threshold is $2,000 per contractor per year (it was $600 before).
Maine new hire reporting covers independent contractors. Report them within 7 days once payments in a year reach $2,500.
Recurring deadlines. Put these on your calendar now.
FinCEN's final rule, effective August 14, 2026, permanently exempts companies formed in the U.S. from beneficial ownership reporting. Ignore letters or emails demanding a BOI filing fee; they're a common scam. Only companies formed outside the U.S. still file.
Keeps your business in good standing with the state. Missing it can lead to penalties or dissolution.
File unemployment wage reports each quarter and state withholding returns on the schedule you're assigned (if the state has income tax), plus the annual W-2 reconciliation.
Monthly by the 15th of the following month; sellers averaging under $600 a month in tax can ask to file quarterly, semiannually, or annually. File a zero return if you had no sales; skipping it can bring penalties.
Recurring dates for Maine and federal filings. A payroll service handles most payroll lines, but you should know they're happening.
| When | What | Filed with |
|---|---|---|
| Jan 1 | Minimum wage rises ($15.70 in 2027) | Maine |
| Jan 31 | Q4 941ME, UI wage report and Paid Leave report due | Maine |
| Apr 30 | Q1 941ME, UI wage report and Paid Leave report due | Maine |
| Jun 1 | Secretary of State annual report due ($85 domestic) | Maine |
| Jul 31 | Q2 941ME, UI wage report and Paid Leave report due | Maine |
| Oct 31 | Q3 941ME, UI wage report and Paid Leave report due | Maine |
| Assigned schedule | Sales tax return (file a zero return if no sales) | Maine |
| Jan 31 | W-2s to employees and SSA (with W-3); Form 940; 4th-quarter Form 941 | IRS / SSA |
| Jan 31 | 1099-NEC to contractors and IRS | IRS |
| 15th monthly | Federal payroll tax deposit (monthly depositors) | IRS |
| Apr 30 · Jul 31 · Oct 31 | Form 941 for the quarter | IRS |
| Jul 31 | Form 5500 or 5500-SF, if you sponsor a 401(k) (Oct 15 with Form 5558 extension) | DOL (EFAST2) |
Last verified: October 27, 2026
The Maine state filing fee for an LLC is $175. That's the fee to form your LLC with the state. Expect other costs too, such as a registered agent service if you use one, licenses, and annual filings. See the checklist above for each step.
You need to register to collect sales tax in Maine if you sell taxable products or services there. The state rate is 5.5%, and local taxes may add to it. Registration cost: Free.
Out-of-state sellers must register once their sales into Maine pass $100,000 a year. Having an employee or office in Maine also creates nexus right away.
Recurring filings include: file the Annual Report; file quarterly unemployment reports and withholding returns; file sales tax returns on time. The deadline calendar above lists the dates.
This guide organizes official requirements. It isn't legal or tax advice. Fees, forms, and deadlines change, so confirm on each linked state page before you file, and talk to an attorney or CPA about your specific situation.
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