New Hampshire Security Deposit Law
What landlords in New Hampshire need to know about deposit limits, refund deadlines, interest, and penalties for getting it wrong.
Deposit cap
1 month's rent or $100, whichever is greater
Refund deadline
30 days
Interest required?
No
No statewide interest requirement.
Separate account?
Yes
Penalty for noncompliance
Noncompliance can result in double damages via small claims.
Statute: N.H. Rev. Stat. § 540-A:6
This page summarizes general state-level rules as of 2026 and does not cover city or county ordinances, which can be stricter. Verify against the statute cited above or with a local attorney before relying on it. See all states.