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Portsmouth · New Hampshire

Portsmouth, NH Landlord Laws 2026

Every housing law that applies to Portsmouth landlords — security deposits, eviction rules, rent increases, and more. Updated for 2026.

Based on New Hampshire state law.

Portsmouth Rental Market in 2026

$2,270

median 2BR rent

22,733

population

$2,270

max security deposit

Portsmouth landlords must comply with New Hampshire state landlord-tenant laws. At a median 2-bedroom rent of $2,270/month, understanding deposit caps, notice periods, and eviction rules can save you thousands in penalties.

Local Housing Market Data

The HUD Fair Market Rent for a 2-bedroom in Portsmouth is $2,270/month, which affects Section 8 voucher amounts and affordable housing calculations.

Key Takeaways for Portsmouth Landlords

  • Security deposit: Capped at 1 month(s) of rent ($2,270 at median rent). Must return within 30 days or face penalties up to $4,540.

New Hampshire Laws That Apply in Portsmouth

New Hampshire RSA 540 — Eviction

N.H. Rev. Stat. §540:1 et seq.

Governs eviction procedures in New Hampshire.

New Hampshire RSA 540-A — Prohibited Practices

N.H. Rev. Stat. §540-A:1 et seq.

Prohibits retaliatory eviction, self-help eviction, and certain landlord practices.

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Don’t Risk Penalties

At Portsmouth’s median rent of $2,270/month, a single deposit violation could cost you $4,540+. A wrongful eviction can cost thousands more in court fees, relocation payments, and damages. Know the rules before they cost you.

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How we researched this page: This guide is based on New Hampshire state statutes, verified against official government sources. Rent data comes from HUD Fair Market Rents (FY2026). Last updated: August 2026.
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Reviewed by Rachid Abadli

Founder & CEO, LeaseBase · Sacramento landlord · Self-managing since 2019

LeaseBase is a property management platform — not a law firm. Consult an attorney for legal advice specific to your situation.