What are Massachusetts sellers legally required to disclose?

Massachusetts is technically a buyer-beware state, but that does not mean sellers can hide what they know. Three disclosures are legally mandatory: lead paint notification for homes built before 1978, a Title V septic inspection for properties on private septic systems, and a smoke and carbon monoxide detector certificate from the local fire department. Beyond those, sellers cannot knowingly conceal material defects or lie in response to a buyer's direct questions. The Seller's Statement of Property Condition is not required by law but is strongly recommended — it documents what you knew and disclosed, which is your best protection against post-closing claims.

By John Hollis | June 8, 2026

One of the most common questions sellers ask before listing is some version of: how much do I have to tell them?

It's a fair question, and the answer in Massachusetts is more nuanced than a simple yes or no. The state does not require a comprehensive disclosure form. But that does not mean sellers are free to stay silent about known problems. There are specific things you are legally required to disclose, things that are strongly expected, and things that can get you sued if you conceal them.

Here's the full picture before you list.

The Three Mandatory Disclosures

These are not optional. Missing any of them creates legal exposure before and after closing.

1. Lead paint notification (homes built before 1978). Federal and Massachusetts law require you to provide buyers with the Property Transfer Notification Certification — a lead paint disclosure form signed by you, the buyer, and any agents involved. This must be completed and signed before the Purchase and Sale agreement is executed. Skipping it carries penalties of up to $1,000 per violation and potential damages to the buyer.
2. Title V septic inspection. If your property runs on a private septic system rather than town sewer, the system must be inspected within two years before the sale (three years if pumped annually), or within six months after closing. The inspection report must be disclosed to the buyer and filed with the local board of health. Massachusetts does not require you to repair or replace a failing system before selling — but the findings must be disclosed, and buyers and their lenders may have their own requirements around the results.
3. Smoke and carbon monoxide detector certificate. Before closing, you must obtain a certificate from your local fire department confirming that your smoke and CO detectors meet current Massachusetts standards — the right type, the right placement, in working order. You cannot legally close without this certificate. Fire department schedules can run several weeks out in active markets. Book your inspection as soon as you decide to list.

What the Law Requires Beyond the Forms

Massachusetts law imposes a duty of honesty that goes beyond any specific form. Two rules apply to every seller.

First, you cannot knowingly conceal a material defect. A material defect is anything that would significantly affect the property's value, safety, or desirability — a history of water intrusion, a roof that's been patched repeatedly, a foundation crack, an HVAC system at the end of its useful life. If you know about it, you cannot hide it.

Second, if a buyer asks a direct question about the property's condition, you are required to answer truthfully. Silence is not an option once a specific question is asked.

These obligations survive an as-is clause. A common misconception is that selling as-is protects a seller from disclosure liability. It does not. Massachusetts courts have consistently held that fraud or active misrepresentation overrides as-is language in a purchase contract. If a buyer can show you knew about a defect and hid it, the as-is clause provides no protection.

The Seller's Statement of Property Condition: Not Required, But Fill It Out Anyway

The Massachusetts Association of Realtors publishes a standard form called the Seller's Statement of Property Condition. It covers structural components, major systems, environmental factors, flood zone status, and known defects. Completing it is not mandated by state law.

Complete it anyway.

A signed, dated disclosure form creates a paper trail showing exactly what you knew and disclosed at the time of sale. That documentation is your primary defense if a buyer later claims you concealed something. Without it, the conversation becomes your word against theirs.

The form also forces you to think through the property systematically before you list. Sellers who go through it carefully rarely get caught off guard by inspection findings. They've already thought about the roof age, the furnace history, the drainage issues in the backyard — and that preparation puts them in a stronger negotiating position.

Condo Sellers: Additional Requirements

If you're selling a condo in Massachusetts, disclosure requirements extend to the condo association. Buyers are entitled to review the condo trust documents, the association's budget, meeting minutes, and any pending assessments. You'll also need to obtain a 6(d) certificate — a document from the condo trust confirming that condo fees are current and no outstanding liens exist against your unit. Without it, title cannot be cleared and the sale cannot close.

Request your 6(d) certificate early. Depending on your condo trust, it can take one to two weeks and some trusts charge a fee.

What Happens If You Don't Disclose

Post-closing disputes in Massachusetts real estate typically fall into two categories: items the seller didn't know about, and items the seller knew about but didn't disclose. The first is painful but usually resolvable. The second is where sellers face real legal exposure.

A buyer who discovers a concealed defect after closing can sue for the cost of repairs, attorney fees, and in serious cases seek to rescind the sale entirely. The claim doesn't require proving malice — only that the seller knew and didn't tell them.

The simplest protection is the most straightforward one: disclose what you know, fill out the Seller's Statement, and let your agent and attorney guide you through the specifics of your property before you go to market.

If you're curious about what buyers are looking for during their due diligence, Can You Still Waive a Home Inspection in Massachusetts? covers how the inspection process has evolved in the current market. And for a complete picture of the selling process from accepted offer through closing, What Happens After Your Offer Is Accepted in Massachusetts walks through each step from the buyer's perspective — which is useful to understand as a seller.

Frequently Asked Questions

Is Massachusetts a disclosure state for real estate?

Massachusetts is technically a buyer-beware state, meaning sellers are not required to fill out a comprehensive disclosure form. However, lead paint notification, Title V septic inspection, and a smoke and carbon monoxide detector certificate are all legally mandatory. Sellers also cannot knowingly conceal material defects or provide false answers to a buyer's direct questions.

What is Title V and what does it mean for sellers in Massachusetts?

Title V is the section of the Massachusetts Environmental Code governing private septic systems. If your property has a septic rather than town sewer, it must be inspected within two years before the sale (three years if pumped annually). The inspection report must be disclosed to the buyer and filed with the local board of health. Massachusetts does not require you to repair a failing system before selling, but the findings must be disclosed.

What is the smoke detector certificate requirement when selling in Massachusetts?

Massachusetts sellers must obtain a smoke and carbon monoxide detector certificate from their local fire department before closing. You cannot legally close without this certificate. Scheduling can take several weeks in busy markets — book it as soon as you decide to list.

Do I have to fill out the Seller's Statement of Property Condition in Massachusetts?

The Seller's Statement of Property Condition is a Massachusetts Association of Realtors form covering structural components, systems, and known defects. It is not required by state law, but most agents strongly recommend completing it. A filled-out form documents what you knew and disclosed, which is your best protection if a buyer later claims you concealed something.

What happens if a Massachusetts seller fails to disclose a known defect?

A buyer who discovers a concealed defect after closing can sue for repair costs, attorney fees, and potentially seek to rescind the sale. An as-is clause does not protect sellers from liability for known defects that were actively hidden — Massachusetts courts have consistently held that fraud or misrepresentation overrides as-is language in a purchase contract.

Disclosure done right is not a liability — it's protection. Sellers who go into the market with a clean, documented disclosure record have fewer surprises during inspection, fewer renegotiations after the fact, and fewer headaches at the closing table.

If you're preparing to list and want to walk through your property's specific disclosure requirements before anything hits the MLS, we're glad to help. Reach out to John Hollis Group at 617-431-1826 or visit johnhollisgroup.com.

About John Hollis

John Hollis is a Senior Real Estate Advisor and founder of John Hollis Group at Amo Realty, serving buyers and sellers across Greater Boston and surrounding Massachusetts for over 20 years. His team brings market insight, precise preparation, and strong advocacy to every transaction, from Boston to the North Shore, South Shore, MetroWest, and Southeastern Massachusetts.