New Mexico security deposit law

Read from the statute itself on 2026-11-09. Statewide rule; a city or county can add its own.

Maximum deposit
Depends — see the rule
Return deadline
30 days
Interest
Required in some cases

Lease under 1 year: capped at one month's rent. Lease of 1 year or more: no cap, but a deposit above one month's rent earns annual interest at the passbook rate. Return within thirty days after the agreement ends or the tenant leaves, whichever is later.

Source: NMSA 1978 § 47-8-18(A), (C) · read on 2026-11-09

Calculate it for your rent

The cap depends on your situation
Lease under 1 year: capped at one month's rent. Lease of 1 year or more: no cap, but a deposit above one month's rent earns annual interest at the passbook rate. Return within thirty days after the agreement ends or the tenant leaves, whichever is later.
Return deadline
30 days
Within 30 days after the rental agreement ends or the tenant leaves, whichever is later: an itemized written list of deductions and the balance.
Interest required
Yes
In some situations — see the note
Source: NMSA 1978 § 47-8-18(A), (C) · read on 2026-11-09

New Mexico: common questions

How much can a landlord charge for a security deposit in New Mexico?

Lease under 1 year: capped at one month's rent. Lease of 1 year or more: no cap, but a deposit above one month's rent earns annual interest at the passbook rate. Return within thirty days after the agreement ends or the tenant leaves, whichever is later.

How long does a landlord have to return a security deposit in New Mexico?

30 days. Within 30 days after the rental agreement ends or the tenant leaves, whichever is later: an itemized written list of deductions and the balance.

Not legal advice. Confirm with a local landlord-tenant attorney before relying on a figure.

For associations, blogs and resource pages

Add this calculator to your website

Free, no signup, no tracking form inside. Paste this code where you want it; it opens on New Mexico, and your readers can switch to any other.