California Security Deposit Statistics (2026)

Three numbers frame the scale:

• 5,980,523 California households rent — 44% of all households in the state (U.S. Census Bureau, American Community Survey, via RentCafe).
• The median asking rent in California is $2,825 (Zillow market data, 2026).
• Since July 1, 2024, a standard deposit is capped at one month’s rent (§1950.5(c), AB 12) — so the typical deposit at stake for a new tenancy is roughly that $2,825.

Miss the 21-day deadline and the landlord forfeits the right to keep any portion of the deposit — the full breakdown is in our 21-day rule guide.

The only published California-specific study of deposit withholding is “No Deterrent” (Tenants Together, May 2013). It surveyed the organization’s own members — renters who sought out a tenants’ rights group, so the sample likely over-represents renters with grievances. With that caveat stated plainly, it found:

• 60% of surveyed renters said they had experienced unfair withholding of some or all of a deposit.
• 53% said that the last time they moved, they received none of their deposit within the 21-day deadline.
• 36% said their entire deposit was withheld the last time they moved.

No newer independent California study has replaced it. As our own case volume grows, we plan to publish anonymized outcome data (recovery rates, days-to-refund, resolution stage) on this page.

The same 2013 report also examined court records in three California courthouses, and the numbers strongly favor tenants who actually file:

• Tenants won more than 70% of deposit cases that went to judgment.
• Courts assessed a bad-faith penalty against the landlord in only 3.5% of tenant-filed deposit cases — the statutory penalty exists but is rarely applied, which is why documenting bad faith matters.

The statute puts the burden on the landlord, not you:

“…the landlord or the landlord’s successors in interest shall have the burden of proof as to the reasonableness of the amounts claimed…” — Cal. Civ. Code §1950.5(m)

What suing actually costs and takes in 2026:

Most disputes never reach a courtroom: a demand letter citing the specific §1950.5 violations resolves many cases first. That escalation path — letter first, small claims if ignored — is what DepositBack automates.

California has no statewide interest requirement, but several rent-regulated cities order landlords to pay interest on held deposits. The two largest programs publish annual rates:

Other cities with deposit-interest ordinances include Santa Monica, West Hollywood, Hayward, East Palo Alto, Watsonville, Capitola, and Cotati — rates and mechanics vary; check your city’s rent board. We track rate changes in the update log below.

Three bills reshaped §1950.5 in the last two years. If you last rented before 2024, the rules have changed under you:

• AB 12 (effective July 1, 2024): capped standard deposits at one month’s rent — previously landlords could demand two months (unfurnished) or three (furnished). Small-landlord exception: two months.
• AB 2801 (effective April 1 / July 1, 2025): mandatory photo documentation — move-out and before/after-repair photos (from 4/1/2025), move-in photos for new tenancies (from 7/1/2025), photos delivered with the itemized statement. Also barred charging for professional cleaning unless reasonably necessary (§1950.5(e)(2)(C)). Note for readers of older guides: this bill (with SB 611) renumbered the statute — the 21-day rule moved from (g) to (h), and the bad-faith penalty from (l) to (m).
• AB 414 (effective January 1, 2026): if you paid your deposit or rent electronically, the refund must come back electronically unless you agree otherwise in writing; landlords must notify you of this right; itemized statements may be emailed with mutual written consent; with multiple adult tenants, the refund is one check payable to all unless everyone signs an agreement saying otherwise.

Primary sources used on this page: Civil Code §1950.5 (current text as amended by AB 414); Statewide Civil Fee Schedule (eff. 1/1/2026); California Courts Self-Help; SF Rent Board; Berkeley Rent Board; Tenants Together, “No Deterrent” (May 2013); Zillow; U.S. Census ACS.

• July 2026: Page published. SF rate 4.2% (eff. 3/1/2026); Berkeley 0.9%; AB 414 electronic-refund rules added.
• Planned next update: statewide small-claims filing volumes from the Judicial Council’s 2026 Court Statistics Report; city-by-city interest rate table expansion.