How to Start an LLC in Massachusetts

Forming a limited liability company in Massachusetts means filing one core document with the Secretary of the Commonwealth, the Certificate of Organization, and then keeping up with an annual report and your tax registrations after that. This guide walks through the full process of massachusetts llc formation from choosing a name to filing your first annual report, with the actual fees and forms you will encounter along the way. Whether you are wondering how to start an llc in massachusetts for a side business or a full-time company, the steps below apply the same way.

This article is informational only. It is not legal or tax advice. Massachusetts LLC rules, fees, and tax rates can change, and your specific situation (multiple members, outside investors, licensed professions, out-of-state operations) may require guidance beyond what is covered here. Talk to a Massachusetts business attorney or a CPA before you file if your situation is anything but straightforward.

What You Need Before You Start

Gather these before you sit down to file. Having them ready keeps you from stopping halfway through the online filing system.

• A compliant LLC name that includes "limited liability company," "limited company," or an abbreviation (LLC, L.L.C., LC, or L.C.)
• A resident agent (Massachusetts' term for a registered agent) with a physical address in the state
• The business address where your LLC's records will be kept (M.G.L. c. 156C, sec. 9 requires this)
• Names and addresses of managers or members who will run the LLC
• $500 to $520 for the Certificate of Organization filing fee
• An account with the Corporations Online Filing System if you plan to file electronically
• An EIN application ready for after formation (free, directly from the IRS)
• An operating agreement, drafted or at least outlined, even though Massachusetts does not require you to file one

Step 1: Choose and Check Your LLC Name

Your name must contain "limited liability company," "limited company," or the abbreviation LLC, L.L.C., LC, or LC. It cannot be the same as, or deceptively similar to, any corporation, limited partnership, or LLC already on file with the state, unless that entity files written consent (M.G.L. c. 156C, sec. 3).

Search the state's business database before you fall in love with a name: Corporate Name Search. This is the same database the Corporations Division checks when your filing comes in, so a name that shows up as available here is your best signal before you pay any fees.

Optional: reserve the name. If you are not ready to file yet but want to lock in a name, you can reserve it for $30. The reservation holds for 60 days and can be extended once, for another 60 days, on written request (M.G.L. c. 156D, sec. 4.02).

Step 2: Appoint a Resident Agent

Every Massachusetts LLC must maintain a resident agent for service of process. This can be an individual who resides in Massachusetts, a domestic corporation, or a foreign corporation authorized to do business in the commonwealth (M.G.L. c. 156C, sec. 5). The agent must consent to the appointment on or with your Certificate of Organization, so this is not a step you can skip or backfill later.

You can act as your own resident agent if you have a Massachusetts street address (a P.O. box will not work) and are comfortable having that address show up in the public record. Many single-member LLC owners hire a commercial resident agent service instead, both for privacy and to make sure legal notices are not missed if the owner travels or moves.

Step 3: File the Certificate of Organization

This is the actual formation document, filed under M.G.L. c. 156C, sec. 12, with the Massachusetts Secretary of the Commonwealth, Corporations Division. You can file it three ways:

• Online through the Corporations Online Filing System: $500 plus a $20 expedite fee, for $520 total
• By fax: same $520 total, with the expedite fee
• By mail: $500, no expedite fee, but expect a slower turnaround since mail filings queue behind electronic and fax submissions

The Corporations Division has not published a standard turnaround time for mail filings. It accepts documents from 8:45 a.m. to 4:00 p.m., Monday through Friday, and electronic or fax submissions are handled ahead of mail and walk-in filings because of the expedite charge. If your timeline matters, file online.

Your Certificate of Organization needs to include the LLC's name, the address of its principal office, the resident agent's name and address (with their signed consent), and the names of any managers if the LLC will be manager-managed.

Step 4: Write an Operating Agreement

Massachusetts does not require you to file an operating agreement with the state, but skipping one is one of the more common mistakes new LLC owners make. Without one, state default rules under M.G.L. c. 156C govern how profits are split, how decisions are made, and what happens if a member leaves, none of which may match what you and your co-owners actually intended. Even a single-member LLC benefits from having one on file, since banks and outside parties often ask for it and it reinforces the liability separation between you and the business.

Step 5: Get an EIN From the IRS

An Employer Identification Number is free and comes directly from the IRS, not the state. You need it to open a business bank account, hire employees, and file federal taxes. Apply online through the IRS website after your Certificate of Organization has been approved, since you will need your legal LLC name and formation date on the application.

Step 6: Register With the Massachusetts Department of Revenue

If your LLC sells taxable goods or services, you need to register for a sales tax permit through MassTaxConnect: MassTaxConnect. Massachusetts charges a 6.25% state sales tax rate, with no additional local sales tax layered on top.

How your LLC gets taxed on income depends on how you elect to be classified:

• Default (pass-through) treatment: the LLC itself pays no separate income tax. Profits pass through to members, who report them on their personal Massachusetts returns at the flat 5.00% personal income tax rate, plus an additional 4% surtax on the portion of annual taxable income above $1,000,000 (a threshold adjusted yearly for cost of living, M.G.L. c. 62, sec. 4).
• Corporate election: if you elect to have your LLC taxed as a corporation, it pays the Massachusetts corporate excise instead, 8.0% of net income taxable in the state, plus $2.60 per $1,000 of tangible property or net worth, with a minimum excise of $456 (M.G.L. c. 63, sec. 39).

Most small LLCs stick with pass-through treatment for simplicity. A CPA can tell you whether the corporate election makes sense for your specific profit level and structure.

Step 7: Check Local and Industry Licensing

Massachusetts does not issue one general statewide business license. Licensing requirements are industry-specific (professional boards, food service, alcohol, contractors) and municipal. Two things to check regardless of industry:

• Business Certificate (DBA): if you plan to operate under a name different from your LLC's legal name, you must file a business certificate with the clerk of every city or town where you have an office (M.G.L. c. 110, sec. 5). This filing goes to the local clerk, not the Secretary of the Commonwealth. Fees are set locally and vary by municipality; Boston charges $65, plus $35 more for a non-resident. The certificate stays valid for four years and must be renewed on that cycle.
• Local permits: check with the city or town clerk's office where you operate for zoning, health, or occupancy permits that may apply to your specific business type.

Step 8: File Your Annual Report

Massachusetts LLCs must file an annual report every year on or before the anniversary date of the LLC's organization. This is a recurring cost you should plan for, not a one-time fee:

• $500 if filed by mail
• $520 if filed electronically or by fax ($500 plus the $20 expedite fee)

This annual report fee is generally the main recurring state-level cost of maintaining a Massachusetts LLC, since there is no separate LLC franchise tax outside of it. Missing the deadline can eventually put your LLC into bad standing with the state, so many owners set a recurring calendar reminder tied to their formation date rather than relying on memory.

Common Mistakes to Avoid

• Filing by mail when speed matters. Mail filings have no published turnaround time and sit behind electronic and fax submissions. If you need your LLC formed by a specific date, pay the extra $20 and file online.
• Assuming your LLC name and your "doing business as" name are the same thing. If you operate under any name other than the exact legal name on your Certificate of Organization, you likely need a separate business certificate filed with your local city or town clerk.
• Skipping the operating agreement. Multi-member LLCs without one are exposed to Massachusetts' default statutory rules, which may not reflect what the members actually agreed to verbally.
• Confusing the resident agent's address with a P.O. box. The resident agent must have a physical Massachusetts address where legal documents can be delivered.
• Forgetting the annual report entirely. Since Massachusetts ties the due date to your specific anniversary date rather than a fixed calendar date, it is easy to lose track of it a year or two after formation.
• Assuming there is one general state business license. There is not. Licensing in Massachusetts is scattered across industry boards and municipal offices, so check both levels for your specific business type.

What to Expect After You File

Once the Corporations Division processes your Certificate of Organization, your LLC generally becomes a legally recognized entity in Massachusetts as of the filing date on the certificate. Electronic and fax filings are typically processed faster than mail, though the state does not commit to a specific number of business days. After formation, you should typically be able to obtain your EIN from the IRS within the same day if applying online, and most banks can open a business account once they see your approved Certificate of Organization and EIN.

Keep in mind that forming the LLC is the beginning of your compliance obligations, not the end of them. Between the annual report, any sales tax filings, and local licensing renewals, a Massachusetts LLC generally requires ongoing attention rather than a single filing.

Massachusetts LLC Costs at a Glance

Item	Cost	Frequency
Certificate of Organization	$500 (mail) / $520 (online or fax)	One time
Name reservation (optional)	$30	One time, 60 days (renewable once)
Annual Report	$500 (mail) / $520 (online or fax)	Every year, by your organization anniversary date
Business Certificate / DBA (if needed)	Varies by city or town (e.g., $65 to $100 in Boston)	Every 4 years
Resident agent change (if needed)	$25 (paper) / free (electronic)	As needed

If a fee you need is not listed above, confirm the current amount directly on the Massachusetts Secretary of the Commonwealth, Corporations Division website before you file, since fee schedules can change.

Final Thoughts

Starting an LLC in Massachusetts comes down to a handful of concrete steps: pick a compliant name, line up a resident agent, file the Certificate of Organization for $500 to $520, and then stay current on your annual report and tax registrations. None of it is complicated on its own, but missing a detail, like the local business certificate or the annual report deadline, is what tends to cause problems down the road. For anything involving multiple owners, outside investment, or a licensed profession, loop in a Massachusetts attorney or CPA before you file so your operating agreement and tax elections match your actual situation.