Updated for 2026

California Security Deposit Laws & Calculator

If you rented in California, your landlord is required by law to return your security deposit within 21 calendar days of move-out — along with an itemized written statement of any deductions. Use our free calculator to find out exactly how much you're owed.

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California Security Deposit — Quick Facts

Return Deadline
21 Days
Calendar days from move-out
Maximum Deposit
1 Month's Rent
Since July 1, 2024 (AB 12)
Penalty for Late Return
Up to 2× Deposit
Bad faith required
Interest Required
✗ No (statewide)
Some cities require it
Applicable Law
Cal. Civ. Code § 1950.5
Important 2024 Law Change (AB 12): As of July 1, 2024, California landlords may charge a maximum security deposit of one month's rent for unfurnished units — down from the previous limit of two months' rent. Furnished units are also now capped at one month's rent (previously three months). Landlords with no more than two small properties who have not owned for more than one dwelling are exempt. If your deposit exceeded this cap after July 1, 2024, your landlord may owe you a refund of the overage.

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California Security Deposit Law — Explained

The 21-Day Return Deadline

California gives landlords 21 calendar days — not business days — to either return your full deposit or mail you an itemized written statement explaining every deduction, along with copies of receipts for any work done. The clock starts the moment you vacate the property, which is typically your last day in the unit or the date you return the keys (whichever is later).

Crucially, the landlord must provide documentation. A vague list saying "cleaning: $300" is not enough — California requires actual receipts or invoices. If repairs weren't completed within the 21 days, the landlord must still send an estimate and then follow up with actual costs within 14 days of completing the work.

What Your Landlord Can — and Cannot — Deduct

California law permits landlords to deduct for: unpaid rent, reasonable cleaning costs (to bring the unit back to the condition it was in at move-in), and repair of damage caused by the tenant beyond normal wear and tear. That last phrase — "normal wear and tear" — is where most disputes happen.

Normal wear and tear includes: minor scuffs and marks on walls, small nail holes from hanging pictures, carpet worn from regular foot traffic, and faded paint. Your landlord cannot charge you for repainting an entire room due to normal aging, or for replacing carpet that was already old. Damage beyond wear and tear — large holes in walls, stains, broken fixtures — is fair game for deduction.

Penalties for Bad Faith Withholding

If a California court finds that your landlord withheld your deposit in bad faith — meaning intentionally and without a legitimate reason — you may be awarded up to 2× the amount wrongfully withheld as a penalty, on top of the actual deposit. In practice, that means you could recover up to three times the withheld amount in total (deposit + 2× penalty), plus court costs. Bad faith is a legal determination, so documentation of your landlord's conduct matters enormously.

The 2024 Deposit Cap Change (AB 12)

California Assembly Bill 12, signed into law and effective July 1, 2024, dramatically reduced the maximum allowable security deposit. Before this change, landlords could charge up to 2 months' rent for unfurnished units and 3 months' rent for furnished units. The new law caps all deposits at 1 month's rent — furnished or unfurnished. A narrow exception exists for small-time individual landlords (those who own no more than two residential properties with no more than four total units). If your lease began after July 1, 2024 and you paid more than one month's rent as a deposit, you may have been overcharged.

Local Interest Requirements

California state law does not require landlords to pay interest on security deposits. However, certain cities with rent control ordinances do mandate interest payments — including Los Angeles, San Francisco, West Hollywood, and Berkeley. If you live in one of these cities, check your local rent ordinance, as your landlord may owe you annual interest on top of the deposit itself.

What to Do If Your Landlord Is Late

  1. 1
    Document everything before you leave Take timestamped photos and video of every room, including carpets, walls, appliances, and fixtures. Keep a copy of your lease, move-in checklist, and any written communications with your landlord.
  2. 2
    Provide your forwarding address in writing Email your landlord your new address — this creates a record and starts the 21-day clock clearly.
  3. 3
    Send a formal demand letter after 21 days If you haven't received your deposit or itemized statement, use RenterCalc's demand letter generator to create a professional letter citing Cal. Civ. Code § 1950.5 and requesting return within 14 days.
  4. 4
    Wait 7–14 days for a response Give your landlord a reasonable window to respond to your demand letter. Keep copies of everything you send.
  5. 5
    File in small claims court if no response California's small claims limit is $12,500 for individuals. You can sue for the deposit plus the 2× bad faith penalty. Filing fees are low, and attorneys are not allowed in small claims court.
  6. 6
    Consider a tenant rights attorney for larger amounts If your deposit exceeds $12,500 or your landlord's conduct is clearly egregious, a tenant rights attorney may take your case on contingency.

California Security Deposit FAQ

How long does a landlord have to return a security deposit in California?
California landlords have 21 calendar days from the date you move out to either return your full deposit or provide an itemized written statement of deductions — with receipts. The 21-day window starts when you vacate, not when you give notice.
What can a California landlord deduct from my security deposit?
Allowable deductions include unpaid rent, cleaning costs to restore the unit to its original condition, and repair of damage beyond normal wear and tear. Normal wear and tear — minor scuffs, small nail holes, carpet worn from regular use, faded paint — cannot be deducted. Your landlord must provide receipts for all deductions.
What is the penalty for not returning a security deposit in California?
If a court finds the landlord acted in bad faith, you can be awarded up to 2× the wrongfully withheld amount as a penalty, in addition to the actual deposit. Total recovery can be up to 3× the withheld amount plus court costs. Under Cal. Civ. Code § 1950.5, bad faith is key — courts look at whether the landlord intentionally kept the deposit without justification.
Does California require interest on security deposits?
No — California state law does not require landlords to pay interest on security deposits. However, some cities with local rent control ordinances do require interest, including Los Angeles, San Francisco, West Hollywood, and Berkeley. Check your city's local ordinance if you live in a rent-controlled area.
How do I get my security deposit back in California?
Give proper written notice, leave the unit clean, provide your forwarding address in writing, and document move-out with photos. After 21 days, if you haven't received your deposit, send a demand letter citing § 1950.5. If unresolved, file in small claims court (limit: $12,500). Courts regularly award penalty damages for bad faith retention.

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