Security Deposit Interest Calculator — New Hampshire
Calculate the interest you owe a New Hampshire tenant on their security deposit, using the state's own rule and statute.
The rate equals what your bank actually paid. Enter your account's rate for an accurate figure.
Interest owed to tenant
$4.06
- Time held
- 2.03 yrs
- Total to return
- $2,004.06
New Hampshire rule
Deposits held for one year or more earn interest at the regular savings rate paid by the NH bank, savings & loan, or credit union holding the deposit.
When paid: Paid at deposit return; tenant may request accrued interest every 3 years.
Last verified June 12, 2026.
Not legal advice. LandlordKit provides general informational tools, not legal advice. Landlord-tenant laws change and vary by city and county. Verify the cited statute and consult a licensed attorney before acting on any result.
How New Hampshire treats security deposit interest
Deposits held for one year or more earn interest at the regular savings rate paid by the NH bank, savings & loan, or credit union holding the deposit.
When it must be paid: Paid at deposit return; tenant may request accrued interest every 3 years.
Worked example
Example: a $1,500.00 deposit held for 2 years at 0.10% per year. Simple interest owed ≈ $3.00, so the landlord returns about $1,503.00 in total. (Rates can change year to year — confirm the current figure.)Last verified June 12, 2026.
New Hampshire security deposit obligations
Even where interest isn't required, New Hampshire still regulates the deposit itself: you generally must return it within 30 days of move-out (N.H. Rev. Stat. § 540-A:7). You must include an itemized statement of any deductions.
Open the New Hampshire deposit return tracker to confirm the deadline and build an itemized deductions statement.
New Hampshire security deposit interest FAQ
Do landlords have to pay interest on security deposits in New Hampshire?+
Yes. Deposits held for one year or more earn interest at the regular savings rate paid by the NH bank, savings & loan, or credit union holding the deposit. (N.H. Rev. Stat. § 540-A:6).
How is security deposit interest calculated in New Hampshire?+
Interest is simple (non-compounded). Multiply the deposit by the annual rate and by the number of years held. Interest only begins after the deposit has been held 12 months.
When must New Hampshire landlords pay the interest to the tenant?+
Paid at deposit return; tenant may request accrued interest every 3 years.
When must a New Hampshire landlord return the security deposit?+
Generally within 30 days of move-out (N.H. Rev. Stat. § 540-A:7). Use the LandlordKit deposit return tracker for the exact rule and an itemized statement.
Is the LandlordKit security deposit interest calculator free?+
Yes — it's completely free, requires no signup, and you can download a PDF interest statement to give your tenant.
Other states
Need the full picture? See the security deposit interest calculator for all states.