How long does a landlord have to return a security deposit in New Hampshire?

30 days after move-out (RSA 540-A:7).

What happens if a New Hampshire landlord returns the deposit late?

Penalty: 2x the deposit plus interest.

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New Hampshire security deposit rules

30 days

to return your deposit or send an itemized list

2x the deposit plus interest

possible penalty if they don't follow the rules

What to do to get your deposit back

Photograph every room when you move out (walls, floors, appliances, inside cabinets). Keep your move-in photos too.
Send your forwarding address in writing, with the date.
Mark the deadline: 30 days after you move out.
If it's late or the deductions look wrong, send a written demand letter that cites RSA 540-A:7.
Still nothing? Small claims court is built for this, and you usually don't need a lawyer.

Let Stoop handle it.

Text Stoop your move-out date. It tracks your New Hampshire deadline, saves your photos, and writes the demand letter if your landlord is late. Free, no app.

Text Stoop or text (855) 254-5250

Law: RSA 540-A:7. Updated November 2026. General information, not legal advice. Laws change; check the current statute or a local tenant organization for your situation.