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New Hampshire · RSA 477:4New Hampshire seller disclosure requirements

New Hampshire has no single disclosure form in statute; instead RSA 477 lists specific notices, each acknowledged by the buyer's signature. Before the contract, the buyer gets the radon, arsenic, lead, PFAS and flood notification (RSA 477:4-a). Before or while the offer is prepared, the seller of a one-to-four family home discloses private water and sewage systems, insulation, flood zone status and any residential heating oil underground tank (RSA 477:4-d), plus condo, methamphetamine and energy-tariff notices where they apply.

The notices

  1. Radon, arsenic, lead, PFAS, flood (477:4-a)

    Statutory text before the contract for any property with a building: testing for radon, arsenic, lead and PFAS, and flood insurance and FEMA maps. The buyer signs a copy; missing it does not affect title or create seller liability.

  2. Water, septic, insulation, flood, oil tank (477:4-d)

    Before or during preparation of an offer on a one-to-four family dwelling: private water supply (tests, problems), private sewage system (service, contractor), insulation type and location, federally designated flood hazard zone, and a residential heating oil underground storage tank – unknown items stated in writing.

  3. Condominiums (477:4-f)

    Before or during the offer, written notice that the buyer may obtain from the association the declaration, bylaws, rules, monthly and annual fees and special assessments of the last 3 years.

  4. Methamphetamine and energy tariffs (477:4-g, 4-h)

    Known methamphetamine production before cleanup is certified; and utility tariff charges for financed energy-efficiency or renewable improvements, with remaining term and amount if known.

Good to know

  • For any property that includes a building, private water and sewage information is also due before the contract (477:4-c), including approved seating capacity for food service establishments.
  • A homicide, other felony or suicide on the property need not be disclosed unless the buyer asks and the owner or agent knows (477:4-e).
  • Each notice is acknowledged by the buyer signing a copy.

What the TC tracks

  • The signed 477:4-a notice before the purchase and sale agreement.
  • The 477:4-d disclosures with the offer – including the oil tank and flood zone answers.
  • Condo association notice and any energy-tariff disclosure where applicable.

Questions about New Hampshire seller disclosures

Does New Hampshire require a seller's disclosure form?

The statute requires specific written notices rather than one form: the radon, arsenic, lead, PFAS and flood notice (RSA 477:4-a) and the water, sewage, insulation, flood zone and oil tank disclosure (RSA 477:4-d), among others.

When must the New Hampshire radon and arsenic notice be given?

Before the execution of the purchase and sale contract, acknowledged by the buyer's signature.

Must a New Hampshire seller disclose an underground oil tank?

Yes. RSA 477:4-d requires information on the presence of a residential heating oil underground storage tank for one-to-four family dwellings.

Does New Hampshire require disclosure of a death in the home?

Only if the buyer asks and the owner or agent knows the property was the site of a homicide, other felony or suicide (RSA 477:4-e).

What do New Hampshire condo buyers receive?

Written notice that they may obtain the declaration, bylaws, rules, fees and recent special assessments from the association (RSA 477:4-f).

Related guides

Turn each New Hampshire notice into a task with an owner on the deal in ClosingCode – signed copies kept with the deal documents.

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Source: New Hampshire RSA 477:4-a, 477:4-c, 477:4-d, 477:4-e, 477:4-f, 477:4-g, 477:4-h (gc.nh.gov, read October 24, 2026).

General information, not legal advice. ClosingCode is software; it is not a law firm or brokerage.