California Security Deposit Law

Written by John Mayberry, Broker/Owner | Licensed California Real Estate Broker (CA DRE #01767835)
Published: June 25, 2026 | Updated: September 2026

Key Takeaways

• California strictly limits security deposits: Deposit caps depend on whether a unit is furnished or unfurnished, and recent statewide updates limit many residential rental properties to one month's rent, with narrow exceptions. All refundable charges count toward the legal limit, and existing law requires deposits to be handled in substantially the same form as collected.
• Non-refundable security deposits are illegal: Any money collected for damage, cleaning, or unpaid rent must be refundable and treated as a deposit. Calling a fee “nonrefundable” does not make it lawful under security deposit laws.
• Landlords must follow exact inspection and refund rules: Tenants who request an initial inspection are legally entitled to one, with proper written notice and within a mutually acceptable date. After move-out, deposits must be returned within 21 days with an itemized statement and photos, including prior consistent statements if needed.
• Mistakes can lead to significant penalties: Improper deductions, missing documentation, or failing to meet the 21‑day deadline can expose landlords to penalties of up to twice the entire security deposit, in addition to the refund owed. In some cases, tenants may pursue claims in small claims court for tenant compensatory damages.

A properly handled deposit can protect landlords from unexpected losses. In California, strict state law permits only certain uses of deposits, and failing to follow these rules can be costly. Now is a good time to review whether your process aligns with state rental laws and your lease or rental agreement.

Collecting a security deposit gives landlords several clear advantages, including:

• Protection against tenant's default such as unpaid rent.
• Coverage for damage beyond normal wear and tear.
• Leverage to encourage tenants to care for the rental unit.
• Funds to cover cleaning costs after move-out, including any cleaning fee allowed by law.

California landlords must follow strict rules on how much can be collected, how deposits are handled, and when they must be returned. Real Property Management put together this article to help landlords understand security deposit return rules in simple terms and apply them correctly.

California Security Deposit Law Guide for Landlords

Here is a practical guide to California’s deposit rules and what they mean for property managers, property owner clients, and landlord's agent representatives.

California Security Deposit Limit

As of recent updates (AB 12), California law restricts security deposits for many rentals to one month's rent, with limited exceptions for natural persons who own two residential rental properties or fewer. Landlords should review current rules carefully before setting deposit amounts, especially when a limited liability company or entity providing services manages the residential property.

Nonrefundable Fees

California does not allow nonrefundable deposits. Any money collected to cover damage, cleaning, or property belonging to the landlord must be refundable. Courts focus on how the money is used, not what it is called, even if the landlord intends to label it a specified fee.

Landlords may charge nonrefundable application fees if they comply with state limits. However, labeling a charge as nonrefundable does not make it legal if it functions as a deposit.

Storing a Tenant’s Deposit in California

California does not require landlords to store deposits in a separate or interest‑bearing account. However, landlords must keep the deposit safe and available for return, often through a financial institution designated in their business records. Using the deposit for personal expenses before move‑out is not allowed.

Local ordinances may impose additional rules, so landlords should always check city or county regulations.

Written Notice After Security Deposit Receipt

California landlords are not required to provide a written receipt confirming they received a deposit, although it is best practice. Clear documentation in the rental agreement or lease indicating the amount collected helps prevent disputes and supports the landlord if a disagreement arises later.

Clear documentation helps prevent disputes and provides proof if a disagreement arises later.

Reasons to Withhold a Tenant’s Security Deposit in California

Under certain conditions, landlords may keep all or part of a tenant’s security deposit. In California, common legal reasons include:

• Unpaid rent.
• Repairing damage beyond normal wear and tear.
• Cleaning the unit to restore it to move-in condition.
• Replacing or repairing personal property or items the landlord owns.

California law is strict about what landlords cannot deduct. A landlord may not keep a deposit to fix problems that existed before the tenant moved in or to cover normal wear.

Proper move‑in documentation, including photos and inspection forms, is critical to justify deductions and avoid disputes with a former tenant or previous tenant.

A Walk-Through Inspection

California landlord-tenant law requires a pre-move-out walk-through inspection if the tenant requests one. This inspection gives the tenant a chance to fix issues before moving out and avoid deductions.

Landlords must give at least 48 hours’ written notice before conducting the inspection. During the walk-through, the landlord must provide a list of potential deductions and explain what repairs or cleaning would be required to avoid them. This step is required under California law and helps remedy identified deficiencies before move‑out.

Security Deposit Refund in California

Once the tenant vacates the property, California landlords have 21 calendar days to return all or part of the security deposit. If deductions are made, the landlord must include an itemized statement indicating each deduction and provide photos of the damage and post‑repair results.

If repairs or cleaning exceed $125, copies of receipts or invoices must be provided. If the work cannot be completed within 21 days, landlords must provide a good‑faith estimate and then send final documentation once the work is finished, including the reasonable hourly rate charged by or landlord's employee or contractor.

Missing the 21‑day deadline can expose landlords to penalties of up to twice the deposit amount, in addition to the refund owed. This applies whether the deposit was held by either the landlord or a landlord's employee.

California law also addresses:

• Abandoned personal property left behind after move‑out.
• How to return personal property when a service member tenant is deployed.
• What happens when real property transferred to landlord's successors.
• How to handle deposits when a former landlord or landlord retained funds improperly.

Conclusion

California security deposit law sets strict rules on deposit limits, allowable deductions, inspections, and refund timelines. Understanding these requirements helps protect your investment and reduces the risk of disputes or legal penalties.

If you have specific questions about your situation, it is wise to consult a qualified California attorney. You may also benefit from working with a knowledgeable property management company that understands state and local laws.

Real Property Management helps California landlords handle security deposits correctly from move-in to move-out. Our property inspections and documentation process result in compliant refunds. Our team helps reduce risk and save time. Contact Real Property Management today to learn how professional management can protect your property and simplify your rental operations.

Disclaimer: Please note that the information provided in this blog is intended for general guidance and should not be considered as a replacement for professional legal advice. It is important to be aware that laws pertaining to property management may change, rendering this information outdated by the time you read it.