New Hampshire security deposit law
What should I do if my landlord won't return my deposit in New Hampshire?
The short answer
Build the paper trail: confirm your forwarding address in writing, then send a demand letter by certified mail citing RSA § 540-A:7 and the 30 days deadline. A statute-cited demand is the step that moves most cases, and it sets up District Division — Small Claims if needed.
When a New Hampshire landlord goes quiet on your deposit, escalate in writing, in this order.
First, remove their easiest excuse: send your forwarding address in writing (text or email counts, but letter is better) and keep proof. Second, send a formal demand letter by certified mail. Cite RSA § 540-A:7, state the 30 days deadline and the date it passed, itemize what you are owed, and give a firm response date, typically 10 to 14 days. Certified mail matters: it creates dated proof the landlord received your demand, which is exactly what a judge asks about first.
Third, know the leverage behind the letter: New Hampshire law allows up to 2x the deposit for wrongful withholding, which is why a landlord's lawyer will usually advise settling a clear case.
If the letter is ignored, District Division — Small Claims handles deposit disputes up to $10,000, no attorney required, and your certified-mail demand becomes your first exhibit. Most tenants never need the courtroom: the letter, done properly, is where the money moves.
The New Hampshire rules at a glance. Governing statute: RSA § 540-A:7. Return deadline: 30 days. Statutory damages: up to 2x the deposit for wrongful withholding. Attorney's fees: recoverable in qualifying cases. Court for disputes: District Division — Small Claims, claims up to $10,000.
Looking for the rules beyond this state? My landlord didn't return my security deposit. What do I do?
See what your landlord owes you under New Hampshire law.
Answer a few questions about your situation and get a New Hampshire-specific demand letter that applies these rules to your case, ready in about ten minutes.