Property & Landlord Compliance • New Hampshire (NH)

New Hampshire Security Deposit Limit, Return Deadline & Prorated Deduction Calculator

Verify New Hampshire statutory deposit limits (1x monthly rent benchmark), track your mandatory 30-day itemized return deadline, and calculate court-defensible prorated depreciation.

New Hampshire Security Deposit & Prorated Deduction Inputs
New Hampshire statutory benchmark cap: 1x monthly rent | Return window: 30 days.
Net Deposit Refund Due to Tenant (NH)
$0
Must be mailed within 30 days of move-out in New Hampshire
  • New Hampshire Max Deposit Benchmark (1x Rent): $0
  • Deposit Cap Compliance Check: Compliant
  • Remaining Useful Life Chargeable (%): 0%
  • Court-Defensible Prorated Deduction: $0
  • New Hampshire Statutory Return Window: 30 Calendar Days
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New Hampshire (NH) Regional Benchmarks & Statutory Notes

New Hampshire Benchmark Metric 2026 Value Regional Context (Northeast)
Skilled Trade Labor Cost Multiplier 1.12x National Avg Avg contractor billing rate: ~$94/hr
4,000 PSI Ready-Mix Concrete Benchmark $176 / cubic yard Local frost footing depth: 54 inches
New Hampshire LLC Filing & Annual Report Fee $100 initial / $100/yr Top state income tax benchmark: 0%
Residential Security Deposit Statutory Cap & Deadline 1x Rent / 30 Days Deep frost protection and salt-scaling resistance required for all residential and commercial slabs.

Frequently Asked Questions: New Hampshire Landlord Security Deposit & Deduction Calculator

What is the maximum security deposit a landlord can charge in New Hampshire?

In New Hampshire (NH), the standard residential security deposit benchmark cap is 1 month(s) of rent (some municipalities or unfurnished/furnished units may have specific rules; always verify local county/city ordinances).

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

Landlords in New Hampshire have a strict 30-day statutory window after lease termination and key surrender to return the security deposit and/or mail a written itemized statement of deductions.

How do you calculate prorated carpet or paint depreciation for security deposit deductions?

Courts disallow charging a tenant 100% of replacement cost for an aged item. Multiply the replacement cost by ((Useful Life − Current Age) ÷ Useful Life). For example, if 5-year-useful-life carpet is damaged beyond repair at year 3 on a $1,000 replacement, the maximum chargeable deduction is 40% ($400).

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