Demand Letter Laws in Massachusetts: $7,000 Small Claims, 12% Interest & Chapter 93A Treble Damages

You're a freelance software engineer in Boston and a startup client owes you $11,400 for a completed MVP build. You've sent the polite follow-up, the detailed invoice breakdown, and now it's been seven weeks of radio silence. It's time for a demand letter — and if you're in Massachusetts, you're sitting on one of the most powerful sets of legal tools in the country. Massachusetts has a $7,000 small claims limit (M.G.L. c. 218, § 21), a 12% statutory interest rate on contract claims (M.G.L. c. 231, § 6C) — one of the highest in the nation — a 6-year statute of limitations for written contracts, and the legendary Chapter 93A consumer protection statute that can triple your damages and make the other side pay your attorney fees.

This guide covers what Massachusetts law actually says about demand letters: the $7,000 small claims threshold, the 12% statutory interest rate, the 6-year statute of limitations (M.G.L. c. 260, § 2), the Chapter 93A 30-day demand letter requirement and its treble-damages power, and the specific language that makes a Massachusetts demand letter carry maximum legal weight.

Massachusetts Small Claims Limit: $7,000

Massachusetts small claims cases are heard in the District Court Department or the Boston Municipal Court Department under M.G.L. c. 218, § 21. The jurisdictional limit is $7,000, which puts Massachusetts in the middle tier — lower than Georgia ($15,000), California ($12,500 for individuals), and Pennsylvania ($12,000), but the same as Michigan's recently increased limit and higher than Ohio ($6,000) and New York ($5,000 in town/village courts).

Key Massachusetts small claims court facts for freelancers:

Limit: $7,000 in damages (excluding costs and interest)
Filing fee: $40 for claims up to $500; $50 for claims $501–$2,000; $100 for claims $2,001–$5,000; $150 for claims $5,001–$7,000
Attorneys are allowed in Massachusetts small claims court — unlike Michigan or California small claims
Either party can request a jury trial by transferring the case to the regular civil docket — but this removes the small claims procedural simplicity
Statute of limitations for written contracts: 6 years (M.G.L. c. 260, § 2)
Statute of limitations for oral contracts: 6 years (M.G.L. c. 260, § 2)
Cases are heard by a clerk-magistrate, not a judge, unless either party objects

The fact that attorneys are allowed in Massachusetts small claims is a double-edged sword. On one hand, if your client is a funded startup with in-house counsel, they can bring a lawyer — which raises the stakes. On the other hand, this makes a well-crafted Chapter 93A demand letter even more powerful: if the client ignores a 93A letter and you later win treble damages plus attorney fees, the math flips dramatically in your favor.

⚠️ Important: Because attorneys are permitted in Massachusetts small claims court, a freelancer facing a well-funded client should take the demand letter phase seriously. A proper Chapter 93A demand letter, sent by certified mail with a 30-day response window, creates a paper trail that dramatically strengthens your position — whether you end up in small claims, district court, or a settlement negotiation.

Massachusetts Statutory Interest: 12% Under M.G.L. c. 231, § 6C

Here's where Massachusetts separates itself from virtually every other state: the statutory interest rate on contract claims is 12% per annum under M.G.L. c. 231, § 6C. This is one of the highest statutory rates in the United States — double what New York applies (9%), nearly double Texas (6%), and four times what Illinois provides (5%). For a freelancer with an $11,400 unpaid invoice that's six months overdue, that's roughly $684 in statutory interest — not life-changing, but a meaningful addition to your demand letter that signals you know the law.

Key Massachusetts interest rate facts:

Rate: 12% per annum (simple interest) on contract claims (M.G.L. c. 231, § 6C)
Interest starts accruing from the date of breach or demand, depending on the nature of the claim
For liquidated claims (fixed amounts like an invoice), interest runs from the date payment was due
For unliquidated claims, interest runs from the date of the demand letter or the filing of the complaint
Interest continues accruing through judgment and post-judgment
The rate is fixed by statute — it doesn't float with market rates like Michigan's T-note-indexed rate

For an $11,400 invoice due January 1, 2026, a demand letter sent July 1, 2026 would include approximately $684 in accrued interest (6 months × 1% per month). That brings the total demand to $12,084 — and you should state both figures clearly: the principal ($11,400) and the accrued interest ($684), with the statutory basis cited (M.G.L. c. 231, § 6C).

💡 Pro tip: Always calculate and include statutory interest in your Massachusetts demand letter. A client who sees "plus 12% annual interest under M.G.L. c. 231, § 6C" knows two things: (1) you've done your homework, and (2) the meter is running at $3.74 per day on that $11,400 invoice. That daily cost psychology is far more persuasive than a lump sum.

Massachusetts Statute of Limitations: 6 Years for Written Contracts

Under M.G.L. c. 260, § 2, Massachusetts provides a 6-year statute of limitations for actions on written contracts. This is fairly standard — the same as Michigan, Georgia, and most other states. Oral contracts also get 6 years. The key practical takeaway: you have a long runway, but don't wait. The sooner you send the demand letter, the stronger your position — evidence is fresher, witnesses are available, and the client hasn't had time to reorganize or disappear.

Timelines to know:

Written contracts: 6 years from the date of breach (M.G.L. c. 260, § 2)
Oral contracts: 6 years (M.G.L. c. 260, § 2)
Consumer protection claims (Chapter 93A): 4 years from the date of the unfair or deceptive act (M.G.L. c. 260, § 5A)
Fraud claims: 3 years from discovery (M.G.L. c. 260, § 12)

Massachusetts Chapter 93A: The Freelancer's Secret Weapon

This is the section that makes Massachusetts demand letters genuinely dangerous to ignore. Chapter 93A of the Massachusetts General Laws (M.G.L. c. 93A, § 1–11) is the state's consumer protection statute — and it's one of the broadest and most powerful in the country. While its name says "consumer," Massachusetts courts have interpreted it to coverbusiness-to-business transactions as well, so long as the conduct occurred "primarily and substantially" within Massachusetts and the unfair or deceptive act took place in a business context.

Here's what Chapter 93A means for a freelancer sending a demand letter:

30-Day Demand Letter Requirement: Before you can file a Chapter 93A lawsuit, you must send a written demand letter to the other party at least 30 days in advance (M.G.L. c. 93A, § 9(3)). The letter must identify the claimant, describe the unfair or deceptive act, and state the injury suffered.
Treble Damages: If the court finds that the other party's conduct was willful or knowing — and "I just didn't feel like paying the freelancer" can qualify — the court mustaward triple damages (M.G.L. c. 93A, § 9(3)).
Attorney Fees: If you win, the court must award reasonable attorney fees and costs (M.G.L. c. 93A, § 9(4)). This is huge — it means you can hire a lawyer on contingency for a claim that might otherwise be too small to justify legal fees.
"Unfair or deceptive" is broad: Breach of contract alone isn't automatically a 93A violation — but breach of contract plus some deceptive conduct (like lying about why they haven't paid, stringing you along with false promises, or ghosting you after repeated commitments) can be. Massachusetts courts have found 93A violations in a wide range of business-to-business disputes.

⚡ The Chapter 93A Math: If your $11,400 invoice goes unpaid for months, the client makes repeated false promises ("the check is in the mail"), and you send a proper 93A demand letter establishing the deceptive pattern — then win in court: $11,400 × 3 (treble) = $34,200, plus 12% statutory interest, plus your attorney fees paid by the other side. A client who understands this math usually settles after the demand letter.

How to Write a Massachusetts Chapter 93A Demand Letter

A Massachusetts demand letter that invokes Chapter 93A must meet specific requirements to preserve your right to treble damages. Here's what to include:

Your identity and contact information — full name, address, email, phone
Description of the unfair or deceptive act — be specific: dates, amounts, what was promised vs. what happened, any false statements or deceptive conduct. Don't just say "they didn't pay" — document the pattern: "On March 15, you said the check was mailed. On April 2, you said there was a 'bank issue.' On May 10, you stopped responding entirely."
The injury suffered — the amount owed, plus any consequential damages (lost opportunities, overdraft fees because you were counting on the payment, etc.)
A reasonable settlement offer — the statute requires you to make a written offer of settlement. This can simply be: "I am willing to settle this matter for the full amount owed ($11,400 plus $684 in statutory interest under M.G.L. c. 231, § 6C, for a total of $12,084) paid within 30 days."
The 30-day response deadline — explicitly state that the recipient has 30 days from receipt to respond with a reasonable settlement offer, as required by M.G.L. c. 93A, § 9(3).
Warning about Chapter 93A remedies — state clearly that if the matter is not resolved within 30 days and you are forced to file suit, you will seek treble damages, attorney fees, and costs under M.G.L. c. 93A, § 9.

📬 Send it by certified mail, return receipt requested. The 30-day clock under Chapter 93A starts from the date of receipt, not the date you send it. The certified mail receipt is your proof that the clock started — and that the client can't claim they never got it. Also keep a copy for your records; you'll need to show the court what you sent.

What Happens If the Client Ignores Your 93A Letter

If 30 days pass with no reasonable settlement offer, you can file suit. In Massachusetts, you have several options depending on the amount:

Small Claims Court ($7,000 or less): Fast, inexpensive, attorneys allowed but procedural simplicity makes it manageable solo. Works well for smaller invoices.
District Court (up to $50,000): More formal, but where most Chapter 93A claims are heard. The filing fee is $180 plus $15 for the summons. You'll want a lawyer here — but remember, if you win on 93A grounds, the other side pays your legal fees.
Superior Court (unlimited): For larger claims. Higher filing fees, mandatory case management conferences, and strict procedural rules. Chapter 93A claims above $50,000 go here.

The key strategic decision: if your claim is under $7,000, small claims is the obvious path. If it's between $7,001 and $50,000, the Chapter 93A attorney-fee provision makes hiring a lawyer economically viable — because the other side pays if you win. This fundamentally changes the risk calculus compared to other states where you eat your own legal fees regardless.

✅ The Massachusetts Advantage: In most states, a freelancer with a $11,400 unpaid invoice faces a brutal cost-benefit analysis: hiring a lawyer might cost $5,000–$8,000, eating most of your recovery. In Massachusetts, Chapter 93A flips that: the lawyer costs the other side $5,000–$8,000 if you win. That's why a well-written 93A demand letter gets responses that demand letters in other states don't.

Putting It All Together: The Massachusetts Demand Letter That Works

Your Massachusetts demand letter should hit every note:

State the amount owed clearly — principal + accrued 12% interest under M.G.L. c. 231, § 6C
Document the deceptive pattern that triggers Chapter 93A — false promises, ghosting, intentional delay
Make a specific settlement offer with a 30-day deadline
State clearly that you will seek treble damages + attorney fees under Chapter 93A if forced to litigate
Send it certified mail, return receipt requested
Keep the tone professional and factual — the letter is evidence, not a venting session

The combination of high statutory interest (12%), Chapter 93A's treble damages, and the attorney-fee-shifting provision makes Massachusetts one of the most favorable states in the country for freelancers chasing an unpaid invoice. A demand letter that cites these statutes correctly doesn't just ask for payment — it lays out the math of what happens if the client forces you to sue. And in Massachusetts, that math is expensive for the client.

Bottom line: Sending a Massachusetts demand letter without citing Chapter 93A is like bringing a knife to a gunfight. Cite it, respect the 30-day procedure, and your demand letter goes from "please pay me" to "pay me now, or pay me three times as much later — plus my lawyer."