How to Start a C-Corp in Massachusetts (Quick Answer)
To start a C-corp in Massachusetts, file Articles of Organization with the Massachusetts Secretary of the Commonwealth, name a resident agent, and pay the $275 filing fee. Once the state accepts it, your corporation legally exists.
After that, you adopt bylaws, appoint directors and officers, issue stock, and get an EIN from the IRS. Massachusetts is a higher-cost state, and its corporate excise tax carries a minimum you owe even in a year with no profit.
| Filing document | Articles of Organization |
| Where to file | Massachusetts Secretary of the Commonwealth, Corporations Division |
| Filing fee | $275 (covers up to 275,000 authorized shares; add $100 per additional 100,000 shares) |
| Resident agent | Massachusetts's term for a registered agent; required, with a physical Massachusetts address |
| EIN | Required, free from the IRS (Form SS-4 by phone, fax, or mail if you have no SSN or ITIN) |
| Annual report | $125 ($100 online), due 2.5 months after your fiscal year ends |
| Corporate excise tax | 8% on Massachusetts income, plus $2.60 per $1,000 of tangible property or net worth, with a $456 minimum |
| Foreign owner (25% or more) | File Form 5472 with Form 1120 every year, or face a $25,000 minimum penalty |
First-year cost: $275 to file if you authorize 275,000 shares or fewer, plus a resident-agent service if you use one, commonly $50 to $150 a year. Your first annual report follows 2.5 months after your first fiscal year ends.
Massachusetts costs more to form in and maintain than many states. The $275 filing fee rises if you authorize more than 275,000 shares.
Every corporation also owes the corporate excise tax, which has a $456 minimum. You pay at least $456 in state tax even in a year with no profit, on top of the $125 annual report.
TL;DR
- Massachusetts is a higher-cost state: $275 to form, a $125 annual report, and a corporate excise tax with a $456 minimum you owe even at a loss.
- Step 1, name: pick a unique name with a corporate designator (Inc., Incorporated, Corporation, or Corp.) and check it with the Secretary of the Commonwealth.
- Step 2, resident agent: name one with a physical Massachusetts address.
- Step 3, Articles of Organization: file with the Secretary of the Commonwealth for $275.
- Step 4, bylaws: adopt internal bylaws and keep them with your records.
- Step 5, directors and officers: appoint the board and officers and hold an organizational meeting.
- Step 6, issue stock: authorize and issue shares, keep a stock ledger, and file the 83(b) election within 30 days if your shares vest.
- Step 7, EIN: get a free EIN from the IRS, by Form SS-4 if you have no SSN or ITIN.
- Foreign owner (25% or more): file Form 5472 with Form 1120 every year, or risk a $25,000 penalty.
- Ongoing: a $125 annual report due 2.5 months after your fiscal year ends, plus the corporate excise tax ($456 minimum).
Why Form a C-Corp in Massachusetts?
Massachusetts gives founders the Boston market, a dense base of universities and research talent, and strong biotech and technology sectors.
- The Boston market and a deep university and research talent pool.
- Strong biotech, life sciences, and technology sectors.
- Online filing through the Secretary of the Commonwealth.
Weigh the cost first. If you plan to raise venture capital, investors will most likely want a Delaware C-corp. Massachusetts carries a $275 filing fee and a corporate excise tax with a $456 minimum, so it fits businesses that genuinely operate there.
Step 1: Choose and Reserve Your Corporate Name
- Include a corporate designator such as "Inc.", "Incorporated", "Corporation", or "Corp."
- Search the Secretary of the Commonwealth's business database to confirm the name is available and different from existing entities.
- Massachusetts lets you reserve a name for 60 days for a fee if you are not ready to file.
Step 2: Appoint a Massachusetts Resident Agent
Massachusetts calls its registered agent a resident agent. It is the same role: a person or company with a physical Massachusetts address, available to accept legal and state documents for the corporation.
- The agent must have a physical Massachusetts address, not a PO box.
- The agent must consent to the appointment.
- A commercial agent commonly costs $50 to $150 a year.
Step 3: File Your Articles of Organization
The Articles of Organization is the filing that legally creates your corporation. In Massachusetts you file it with the Secretary of the Commonwealth, Corporations Division.
- It lists the corporate name, resident agent, officers and directors, and the shares the corporation is authorized to issue.
- The fee is $275, which covers up to 275,000 authorized shares, plus $100 for each additional 100,000 shares.
- Once the state accepts it, your corporation exists and its compliance calendar begins.
Step 4: Adopt Corporate Bylaws
Bylaws are the internal rulebook for how the corporation is run. They are not filed with the state, but a corporation is expected to have them, and banks and investors often ask to see them.
- They set out how directors and officers are elected, how meetings and votes work, and how shares are handled.
- They stay with your records, not with the Secretary of the Commonwealth.
- Skipping them can weaken the separation between you and the corporation that liability protection depends on.
Step 5: Appoint Directors and Hold the Organizational Meeting
A corporation is run by a board of directors, who appoint the officers that handle day-to-day work. Right after formation, the incorporator or initial directors hold an organizational meeting, or sign a written consent in place of one.
- Appoint the initial board and elect officers (usually at least a president, treasurer, and secretary; one person can hold several roles).
- Adopt the bylaws and authorize the issuance of stock.
- Keep signed minutes or the written consent with your records.
Step 6: Authorize and Issue Stock
Issuing stock is how founders get their ownership, and it is easy to rush. The board authorizes shares, then the corporation issues them to the founders and any early shareholders.
- Issue shares to each founder and record what they paid (cash, property, or services).
- Keep a stock ledger, a running record of who owns how many shares.
- Watch your authorized share count. In Massachusetts, authorizing more than 275,000 shares raises the filing fee.
The 83(b) election, and its 30-day deadline: if your founder shares vest over time, you generally have 30 days from the grant date to file an 83(b) election with the IRS.
It lets you be taxed on the small value at grant instead of the higher value as the stock vests. The 30-day window cannot be extended, and missing it can be expensive.
Step 7: Get an EIN, Even Without an SSN
An EIN is your corporation's federal tax ID, needed to file taxes, run payroll, and open a bank account. It is free from the IRS.
- With an SSN or ITIN, apply online and get the EIN in minutes.
- Without an SSN or ITIN, apply on Form SS-4 by phone, fax, or mail.
- The EIN is always free; you never pay the IRS for one.
Open a US Business Bank Account
Once you have the EIN, open a dedicated business bank account before money moves through the corporation.
- Keeping corporate and personal funds separate helps protect the liability shield; commingling them is a common reason courts pierce it.
- Banks usually ask for the filed Articles of Organization, the EIN letter, and often the bylaws or a board resolution.
- A separate account also makes bookkeeping and the corporate tax return simpler.
If Your Massachusetts C-Corp Is Foreign-Owned
A Massachusetts C-corp that is 25% or more owned by a non-US person has an extra federal filing that many international founders miss.
- The corporation files Form 5472 with its annual Form 1120 to report transactions with the foreign owner, such as money put in or paid out for services.
- It is required every year there are reportable transactions, even with little or no profit.
- The penalty is steep: a missed or late Form 5472 starts at $25,000 per form, per year.
Handle Massachusetts's Ongoing Compliance
Two obligations run every year: the annual report and the corporate excise tax.
The $125 Annual Report
- Every Massachusetts corporation files an annual report with the Secretary of the Commonwealth, $125 on paper or $100 online.
- It is due 2.5 months after your fiscal year ends, which is March 15 for a calendar-year corporation.
- Missing it can put the corporation out of good standing and eventually lead to dissolution.
The Corporate Excise Tax (Minimum $456)
- A C-corp pays an 8% excise on Massachusetts income, plus $2.60 per $1,000 of tangible property or net worth, whichever applies.
- The minimum excise is $456, so you owe at least that even in a year with no profit.
- Federally, the corporation files Form 1120 and pays 21% corporate tax, due the 15th day of the 4th month after year-end.
How Much Does It Cost to Start a C-Corp in Massachusetts?
| What you pay | Amount | When |
|---|---|---|
| Articles of Organization filing | $275 (plus $100 per 100,000 shares over 275,000) | One time, at formation |
| Resident-agent service (optional) | ~$50 to $150 a year | Yearly, if you use one |
| Annual report | $125 ($100 online) | Yearly, 2.5 months after fiscal year end |
| Corporate excise tax | 8% of income plus a property or net-worth measure, $456 minimum | Yearly |
| Federal corporate tax | 21% of profits | Yearly, with Form 1120 |
How Long Does It Take to Start a C-Corp in Massachusetts?
- Online filings with the Secretary of the Commonwealth are usually processed within a few business days.
- The EIN follows: minutes online with an SSN or ITIN, or same day to several weeks by Form SS-4 without one.
- Bylaws, the organizational meeting, and issuing stock happen right after the state approves the filing.
Common Mistakes to Avoid
- Forgetting the $456 minimum excise. You owe it even in a year with no profit.
- Authorizing more than 275,000 shares without needing to, which raises the filing fee.
- Missing the annual report due 2.5 months after your fiscal year ends.
- Missing the 30-day 83(b) deadline on vesting founder stock.
- Overlooking Form 5472 if the corporation is 25% or more foreign-owned.
How FinStackk Helps
FinStackk is an accounting and tax compliance platform for U.S. businesses, taking you from incorporation through ongoing accounting, tax, and compliance in one place.
We handle Massachusetts C-corp formation, from the Articles of Organization to the EIN, through Fin-Start, including the Massachusetts resident agent.
Once the corporation exists, Fin-Tax keeps the federal Form 1120 deadline and the Massachusetts corporate excise tax on a proactive calendar. Complyy tracks the $125 annual report and your resident-agent renewal. Book a free demo to see them in action.
FAQ
What is the minimum tax for a Massachusetts C-corp?
The corporate excise tax has a $456 minimum, so every Massachusetts corporation owes at least $456 in state tax each year, even with no profit. Above that floor, the excise is 8% of Massachusetts income plus $2.60 per $1,000 of tangible property or net worth. This is separate from the 21% federal corporate tax on Form 1120.
How much does it cost to start a C-corp in Massachusetts?
It costs $275 to file the Articles of Organization if you authorize 275,000 shares or fewer, plus $100 for each additional 100,000 shares. Add a resident-agent service if you use one. Going forward, budget for the $125 annual report and the corporate excise tax, which has a $456 minimum.
When is the Massachusetts annual report due?
The annual report is due 2.5 months after your fiscal year ends, which is March 15 for a calendar-year corporation, and costs $125 ($100 online). It is filed with the Secretary of the Commonwealth. Missing it can put the corporation out of good standing over time.
Is it better to form a C-corp or an LLC in Massachusetts?
An LLC is simpler and taxed once, though Massachusetts LLCs pay a higher $500 filing fee. A C-corp suits founders who plan to raise venture capital or keep earnings in the business, but it owes the corporate excise tax with the $456 minimum. A C-corp is also taxed twice, once at the corporate level and again on dividends.
Should I form my C-corp in Massachusetts or Delaware?
If you plan to raise venture capital, Delaware is what investors expect. If you will operate in Massachusetts and not raise venture money, forming in Massachusetts avoids registering and paying in two states, since a Delaware corporation doing business in Massachusetts still has to register and pay the excise here. Choose based on where you operate and whether you will raise money.
Can a non-US resident start a Massachusetts C-corp?
Yes. Massachusetts sets no citizenship or residency requirement to own a corporation. You will need a Massachusetts resident agent and an EIN, which you apply for on Form SS-4 by phone, fax, or mail without an SSN.
If a non-US person owns 25% or more, the corporation also files Form 5472 with its Form 1120 every year, with a $25,000 minimum penalty for missing it.