California Security Deposit Law: The Complete 2026 Landlord Guide

California has some of the strictest security deposit laws in the country. Civil Code Section 1950.5 governs everything from how much you can collect to exactly what you can deduct — and the penalties for getting it wrong are severe.

The Key Numbers

AB 12: The Deposit Cap That Changed Everything

Assembly Bill 12, effective July 1, 2024, capped all security deposits at one month's rent — regardless of whether the unit is furnished or unfurnished. Before AB 12, landlords could collect up to two months' rent for unfurnished units and three months for furnished.

This means California landlords now have less deposit to work with, making accurate deductions and thorough documentation more important than ever. A $2,500 deposit that used to cover a carpet replacement, cleaning, and unpaid rent may no longer be enough — and you can't go back to the tenant for the difference (except through a separate lawsuit for damages exceeding the deposit).

The 21-Day Deadline

California gives landlords 21 calendar days after the tenant vacates to either:

1. Return the full deposit, or
2. Send an itemized statement of deductions along with any remaining deposit balance and copies of receipts for charges over $125.

The clock starts when the tenant vacates and returns all keys, not when the lease ends. If the tenant's lease ends March 31 but they don't return keys until April 5, the 21 days start April 5.

The Pre-Move-Out Inspection Requirement

California is one of the few states that requires landlords to offer a pre-move-out inspection. Here's how it works:

1. Written notice. You must notify the tenant in writing of their right to request a pre-move-out inspection. This notice must be given within a reasonable time after you learn the tenant is moving out (or when you serve a notice to terminate).
2. Scheduling. If the tenant requests it, the inspection must happen during the last two weeks of the tenancy, at a mutually convenient time during normal business hours.
3. Itemized list. After the inspection, you must give the tenant an itemized list of deficiencies that would justify deductions — giving them a chance to fix the issues before moving out.
4. Final inspection. You can still do a final inspection after the tenant moves out. But items you didn't list in the pre-move-out inspection may be harder to deduct for if the tenant challenges them.

What California Landlords Can Deduct

Under Civil Code 1950.5(b), California allows deductions for four categories only:

1. Unpaid rent
2. Cleaning — to return the unit to the same level of cleanliness as move-in (not "professionally cleaned" — the same condition)
3. Repair of damage beyond normal wear and tear
4. Restoration of personal property — if allowed by the lease (e.g., replacing missing keys, garage remotes)

That's it. No late fees from the deposit (those must be collected separately during the tenancy), no early termination penalties beyond unpaid rent, and no administrative fees.

California-Specific Deduction Rules

Paint

California courts apply a 2-3 year useful life to interior paint. If the tenant lived in the unit for 3+ years, you generally cannot deduct for repainting — even if the walls are scuffed — because the paint has reached the end of its useful life. For tenancies under 2 years, you can deduct for damage beyond normal wear (crayon on walls, large holes, unauthorized paint colors) but must prorate by remaining useful life.

Carpet

California courts typically assign an 8-10 year useful life to carpet. A carpet destroyed at year 6 of a 10-year life means you can deduct 40% of replacement cost. Charging the full amount is the single most common California deposit violation — and judges know it.

Cleaning

The standard is "as clean as when the tenant moved in" — not "professionally cleaned." If the unit was provided with routine cleanliness (not deep-cleaned), the tenant must return it in the same condition. You can deduct for genuine filth (grease-caked ovens, mold, trash) but not for routine turnover cleaning.

Receipts and Documentation

California requires actual receipts or invoices for any deduction over $125. For deductions under $125, you must still provide an itemized description but don't need a receipt unless the tenant specifically requests one. If the tenant requests all receipts, you must provide them regardless of the amount.

The Itemized Statement

California's itemized statement must include:

• Each specific deduction with a description of the damage or charge
• The dollar amount of each deduction
• Copies of receipts for deductions over $125
• The remaining deposit balance (enclosed as a check)

Using a proper disposition letter template ensures you hit all the California-specific requirements.

Penalties for Violations

Under Civil Code 1950.5(l), a landlord who retains the deposit in "bad faith" can be liable for:

• Actual damages (the amount wrongfully withheld)
• Up to 2× the deposit amount as a penalty
• Attorney fees and court costs

A $2,500 deposit dispute in bad faith can become a $7,500+ judgment. Bad faith includes: failing to return the deposit within 21 days, making deductions for normal wear and tear, charging full replacement cost without depreciation, and failing to provide an itemized statement.

Common California Mistakes

1. Collecting more than one month's rent. Under AB 12, the cap is one month. Collecting more is a violation regardless of what the lease says.
2. Missing the 21-day deadline. Even by one day. Send the statement on day 15, not day 20.
3. Not offering the pre-move-out inspection. It's required by statute. Skipping it doesn't forfeit your deductions, but it hurts your case.
4. Deducting for paint after a 3+ year tenancy. Courts consistently deny these claims in California.
5. Full carpet replacement charges. Always prorate by remaining useful life.
6. Cleaning deductions for routine turnover. "As clean as move-in" is the standard, not "spotless."
7. No receipts for charges over $125. The statute requires them. Missing receipts = unenforceable deductions.
8. Using the deposit for last month's rent. Unless the lease explicitly designates part of the deposit as last month's rent, the tenant cannot unilaterally apply it — but the landlord also can't refuse to return it because the tenant "said they'd use it for last month."

Related Reading

• Security Deposit Return Deadlines by State (2026)
• Security Deposit Deductions: What Landlords Can and Can't Deduct
• Normal Wear and Tear vs. Damage: The Complete Guide
• Security Deposit Disposition Letter Template (2026)
• How to Win a Security Deposit Dispute