New Mexico Security Deposit Laws: Strict Limits & Interest Rules
Understand the mandatory one-month security deposit cap in New Mexico, interest requirements for annual leases, and the strict 30-day return deadline.
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This content is for general informational and educational purposes only. It does not constitute legal advice and should not be relied upon as such. Laws change frequently — always verify current regulations and consult a licensed attorney in your jurisdiction for advice specific to your situation. Landager is a property management platform, not a law firm.Information last verified: May 2026.
New Mexico's Uniform Owner-Resident Relations Act (UORRA), effective since 1978, dictates strict rules for the collection, handling, and return of residential security deposits. Unlike many jurisdictions that offer flexibility for longer lease terms, New Mexico maintains specific caps based on the duration of the rental agreement.
Maximum Security Deposit Limits
Under NMSA § 47-8-18, New Mexico imposes limits on the amount of security deposit an owner may demand based on the lease term:
- Leases Less Than One Year: For rental agreements with a term of less than one year, the security deposit cannot exceed one month's rent.
- Leases of One Year or More: For rental agreements of one year or more, there is no statutory maximum limit, but the deposit amount must be reasonable.
- Interest Requirement: If a landlord requires a deposit greater than one month's rent (which is permitted for leases of one year or more), they must pay the resident annual interest at the passbook interest rate permitted to savings and loan associations in New Mexico by the federal home loan bank board. If the deposit is less than or equal to one month's rent, the owner is not required to pay interest (NMSA § 47-8-18(A)(1)-(2)). Ownership of any required interest belongs to the resident.
Return of the Security Deposit
Landlords must adhere to a strict timeframe and procedure when returning a security deposit:
- Deadline: Within 30 days after the termination of the rental agreement or the resident's departure, whichever is later.
- Mailing Requirement: The owner complies with the return requirement by mailing the itemized statement and any remaining deposit to the resident's last known address. This 30-day obligation applies regardless of whether the resident provided a new forwarding address (NMSA § 47-8-18(D)).
Permissible Deductions
Landlords may deduct funds from the security deposit for:
- Unpaid rent.
- Unpaid utilities that were the tenant's responsibility.
- Actual damages to the unit caused by the tenant or their guests, excluding normal wear and tear.
If deductions are made, the landlord must provide an itemized written statement detailing the deductions alongside the remaining deposit balance within the 30-day window.
Penalties for Non-Compliance
If a landlord fails to provide the written itemized statement and the remaining deposit within 30 days (NMSA § 47-8-18(D)-(E)):
- Forfeiture of Rights: The owner forfeits the right to withhold any portion of the deposit, the right to assert counterclaims for the deposit, and the right to sue the resident independently for damages to the premises.
- Financial Penalty: An owner who in bad faith retains a deposit is liable for a civil penalty of $250, plus court costs and reasonable attorney's fees.
How Landager Helps
Landager tracks lease terms, payment schedules, and maintenance requests - making it easy to stay compliant with New Mexico regulations.
Sources & Official References
Frequently Asked Questions
▶What are the New Mexico security deposit rules and return deadlines?
New Mexico has specific rules governing how much landlords can charge for security deposits, how deposits must be held, and the deadline for returning deposits after a tenant moves out. Landlords must provide an itemized statement of any deductions made from the deposit. Failure to comply with deposit return deadlines can result in penalties and the forfeiture of the landlord's right to claim deductions.
▶What are the New Mexico landlord-tenant laws every property owner should know?
Residential landlord-tenant relationships in New Mexico are primarily governed by the Uniform Owner-Resident Relations Act (UORRA) (NMSA 1978, Chapter 47, Article 8). The state generally balances landlord rights with tenant protections but implemented significant pro-tenant reforms in 2025 via Senate Bill 267. This guide covers the essential compliance requirements for property owners and landlords.
Read the complete guide▶What is the New Mexico eviction process and how long does it take?
The New Mexico eviction process requires landlords to provide written notice to tenants before filing a court action. The type and length of notice depends on the reason for eviction — typically shorter for non-payment of rent and longer for lease violations or no-fault terminations. Self-help evictions (changing locks, removing belongings, shutting off utilities) are illegal in New Mexico. The full court process varies but typically takes several weeks.
Read the complete guide▶What are the New Mexico rent increase laws and caps for landlords?
New Mexico has specific rules governing when and how landlords can increase rent. During a fixed-term lease, rent generally cannot be increased unless the lease explicitly allows it. For month-to-month tenancies, landlords must provide proper written notice before an increase takes effect. Check whether New Mexico has any local rent control ordinances that may impose additional caps or requirements.
Read the complete guide▶What is the grace period for late rent in New Mexico?
New Mexico has specific rules regarding grace periods for late rent and the amount that can be charged as a late fee. Late fee provisions must be stated in the lease agreement, and fees must be reasonable. Check New Mexico state law and any applicable local ordinances for the exact grace period and late fee limits that apply to your rental property.
Read the complete guide▶What disclosures must New Mexico landlords provide to tenants?
New Mexico landlords must provide certain disclosures to tenants before or at the time of lease signing. Common required disclosures include lead-based paint hazards (for pre-1978 buildings, a federal requirement), the identity of the landlord or property manager, and any known material defects in the property. Additional state-specific disclosures may include flood risk, mold hazards, and environmental conditions.
Read the complete guide▶What are the New Mexico lease requirements for rental properties?
New Mexico recognizes both written and oral leases, though written leases are strongly recommended for terms longer than one year. Lease agreements should include the rent amount, payment due date, security deposit terms, maintenance responsibilities, and rules regarding entry, pets, and subletting. Certain lease clauses that waive tenant statutory rights may be void and unenforceable under New Mexico law.
Read the complete guide▶What are New Mexico landlord maintenance obligations and habitability standards?
New Mexico landlords must maintain rental properties in a condition that is fit for habitation and complies with applicable building, housing, and health codes. This includes maintaining structural integrity, plumbing, heating and cooling systems, electrical systems, and pest control. Tenants typically have the right to request repairs in writing, and if repairs are not made within a reasonable time, tenants may have legal remedies available.
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