How to Handle Security Deposits Legally and Fairly

Limits to What You Can Charge for a Security Deposit in California

On July 1, 2024, Assembly Bill 12 (AB 12) took effect, limiting the amount landlords in California could collect in security deposits. Under this law, most landlords can collect no more than one month’s rent as a security deposit. 

This was a major shift from prior rules that allowed two months’ rent for unfurnished units and three months’ rent for furnished units. It’s been a couple of years, and most landlords are now aware of and compliant with this law.

There is, however, a narrow exception that may apply to you. Small landlords, or those who own no more than two properties with a total of four units, are still permitted to collect up to two months’ rent. 

Our recommendation is that you review all lease templates, onboarding procedures, and marketing materials to ensure you are not collecting deposits above the legal cap. Even labeling something as a “cleaning fee” or “pet deposit” does not bypass the rule because these are typically considered part of the total deposit.

Understand the 21-Day Return Rule

California law requires landlords to return a tenant’s security deposit, or provide an itemized statement of deductions, within 21 calendar days after the tenant vacates the property. If you’re keeping part or all of the deposit, provide an itemized list of deductions, receipts or documentation, and any remaining balance. 

Failure to meet this deadline can expose landlords to penalties, including potential claims for damages in small claims court. Treat the 21-day rule as a hard deadline. Use it to trigger inspections, invoices, and refund processing immediately after move-out.

Embrace Electronic Deposit Returns (An Emerging Best Practice)

While traditional checks are still acceptable, especially when the security deposit was paid that way, newer regulations and industry practices increasingly support electronic return of security deposits, such as ACH transfers or digital payment platforms.

Benefits of electronic returns include:

• Faster compliance with the 21-day deadline
• Clear transaction records
• Reduced disputes over “lost” or delayed checks

Include a clause in your lease allowing tenants to opt into electronic refunds and collect their preferred payment details at move-in.

Document Property Condition Meticulously

If there is one reason that landlords frequently lose disputes, it’s inadequate documentation.

To legally justify deductions, you must be able to prove:

• The condition of the property at move-in
• The condition at move-out
• That any damage exceeds normal wear and tear

Our recommended documentation process looks like this:

• At move-in, conduct a detailed inspection checklist, take time stamped photos or video, and have the tenant sign off on the condition report. 
• During the tenancy, document maintenance requests and repairs and keep any invoices and contractor records.
• At move-out, perform a final inspection (ideally after a pre-move out inspection with the tenant present), and take comparative photos from the same angles.

This level of documentation is your strongest defense if a tenant disputes deductions.

Know What You Can—and Cannot—Deduct

California law allows landlords to deduct from a security deposit for specific reasons, including unpaid rent, repair of damages beyond normal wear and tear, and any cleaning necessary to return the unit to its original condition. 

However, you cannot deduct for ordinary wear and tear, improvements or upgrades, and routine maintenance. 

Even when deductions are legally allowed, they should be reasonable, well-documented, and proportional. Overreaching is one of the fastest ways to trigger disputes or legal action.

Transparency Builds Trust (and Reduces Risk)

Clear communication is one of the most underutilized compliance tools. Consider:

• Providing tenants with a written explanation of deposit rules at move-in
• Offering a pre-move-out inspection to identify potential deductions early
• Sharing invoices and photos alongside the itemized statement

When tenants understand how decisions are made, disputes become far less likely.

Build a Repeatable Security Deposit System That’s Compliant 

Handling deposits correctly requires consistent execution. You’ll want to include:

• Standardized lease clauses reflecting current law
• Automated reminders for the 21-day deadline
• Digital storage for photos, inspections, and receipts
• Clear refund workflows (including electronic payment options)

Whether you manage one unit or a portfolio, systematization reduces both legal exposure and administrative burden. If security deposits become too much for you to manage in a way that’s fair and legal, make sure you’re partnered with a professional management partner.

Frequently Asked Questions (FAQs)

Q: Can I still charge a pet deposit separately?

No. In most cases, all deposits, pet, cleaning, or otherwise, are combined into the one-month cap. 

Q: What happens if I miss the 21-day deadline?

You may lose the right to retain any portion of the deposit and could face additional penalties in court.

Q: Do I have to provide receipts for deductions?

Yes, especially for larger deductions. Documentation strengthens your legal position.

Q: Can tenants request electronic refunds?

Yes, and it’s increasingly common. While not always mandatory, accommodating this request is a strong best practice.

Q: Does the one-month cap apply to older leases?

Not retroactively. However, it applies to new leases and renewals after July 1, 2024. 

Handled correctly, security deposits are an opportunity to demonstrate professionalism, reduce conflict, and protect your long-term rental business. Make sure you know the latest laws. For help, contact us at Wisdom Property Management. We’re a professional property management team serving Merced and California's Central Valley region since 1976.