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California Security Deposit Refund: AB 12, the 1-Month Limit, and the 21-Day Return

Verified state deposit rules

California tenants often ask two questions at move-out: was my deposit lawful in the first place, and when must it come back? This guide answers both under AB 12 and Civil Code 1950.5, the verified California rules used on this site, and explains the practical steps that protect a refund. It is general information, not legal advice, and local ordinances may be stricter — check the official source for your city as well as the state statute.

How much can a landlord charge in California?

Under AB 12 (Civil Code 1950.5), a security deposit in California is generally limited to one month’s rent. There is a two-month exception for small landlords as defined in the statute, so a two-month deposit should not automatically be treated as unlawful — the question is whether that landlord meets the statutory definition of a small landlord. If you were charged two months, ask the landlord in writing which provision they rely on, and check the definition in the current statute. A city ordinance may impose a stricter limit, and any amount charged above the lawful limit should be queried promptly, ideally before you sign or soon after, with the lease and payment records on hand.

The 21-calendar-day return deadline

After you vacate, the landlord generally has 21 calendar days to return the deposit or the balance after lawful deductions, together with an itemized statement of deductions. Calendar days include weekends and public holidays, so count 21 days from the day after vacating as the statute directs — if you vacate on 1 October, the deadline is 22 October. Note that date at move-out. If the deadline passes with no refund and no itemized statement, write to the landlord with your move-out date, your forwarding address, and a request for the refund or statement, and keep a copy.

What can be deducted?

Lawful deductions generally cover unpaid rent and damage beyond normal wear and tear. Normal wear and tear — faded paint, light carpet wear in walkways, minor scuffs from ordinary use — should not be deducted. Damage such as a broken fixture, a large burn mark, or an unauthorized alteration may be. The itemized statement should let you see each deduction, its amount, and what it relates to. Compare it with your move-in checklist and photographs: any item that was already damaged at move-in, or that is ordinary wear, is worth challenging in writing with your evidence attached.

Move-in and move-out evidence

• Photograph every room at move-in and move-out, with dates, including appliances, walls, floors, and windows.
• Fill in the move-in checklist in detail and keep a signed copy; a blank checklist helps no one at move-out.
• Keep the lease, rent receipts, and any repair or cleaning receipts.
• Give a forwarding address in writing and keep proof of sending.
• Leave the home clean and in the condition the lease requires, and return all keys as directed.

If your refund is late or short

First, check your dates and your evidence, then write to the landlord setting out the deadline, the amount you expect, and the items you dispute. If the landlord does not respond, consider contacting a local housing department, a tenant organization, or a qualified professional — California law provides remedies for certain failures to return a deposit on time, but the procedure and any penalty depend on the facts and the current statute, so do not assume a particular penalty applies without checking the official source. Keep every letter and email; a clear paper trail is the strongest asset in a deposit dispute.

Deadline calendar: counting 21 calendar days

Calendar days include weekends and public holidays, so the deadline is found by counting 21 days forward from vacating, not by counting business days. The table below shows the result for several move-out dates, worked out by adding 21 days. Use your own move-out date in the same way, and note the resulting deadline on move-out day itself, while the date is fresh.

Two counting errors are common: counting business days instead of calendar days, and starting from the lease end date rather than the day you actually vacated and returned possession. If you vacated early or returned keys on a different day from your last night in the home, record each date separately and check the official source for which date starts the clock.

Worked refund arithmetic: three move-outs

Each example below starts with the deposit, subtracts each itemized deduction, and ends with the refund due. Every deduction on a statement you receive should likewise be visible as its own line with its own amount.

Example A in full: $2,000 minus $180 is $1,820, minus $120 is $1,700. If the landlord instead sends $1,500 with no itemization, $200 is unaccounted for — and that $200, not the whole $1,700, is the dispute. In Example B, $3,200 minus $800 is $2,400, minus $450 is $1,950; a tenant disputing only the $450 door repair should say so in writing, as a partial dispute is clearer than a blanket rejection. In Example C, a clean move-out should return the full deposit, and any shortfall needs a specific explanation.

Normal wear and tear compared with damage, in detail

The line between wear and damage decides most deduction disputes. Wear is what ordinary living does to a home over time; damage is what goes beyond that. The table below gives paired examples so the distinction is concrete rather than abstract. Use it as a comparison tool for a statement you receive, not as a legal ruling on any single item, because the facts of each item — its age, its prior condition, and the lease wording — still matter.

Apply the table item by item. A statement deducting $400 for “general cleaning and wear” without separating wear from damage is not yet checkable, even if some cleaning was needed — write back asking which rooms, which items, what was done, and what each cost. Your move-in and move-out photographs are the evidence for this question; without them, it becomes a contest of memory.

Timeline from move-in to refund

A refund dispute is usually won or lost in the records kept at move-in. Keep every document below in one folder, so nothing has to be reconstructed under pressure.

• Before signing: confirm the deposit figure against the California limit for your rent, and record whether the small-landlord exception is claimed and on what basis.
• Move-in day: photograph every room, appliance, wall, floor, and window, with dates; complete the checklist in detail and keep a signed copy.
• During the tenancy: report damage promptly in writing, keep repair correspondence, and keep rent receipts for every payment.
• Move-out: clean to the lease standard, photograph again in the same positions as the move-in photographs, return keys as directed, and give a forwarding address in writing with proof of sending.
• Deadline day: check whether the refund and itemized statement have arrived by the 21-calendar-day deadline you noted at move-out.
• If anything is missing or disputed: write promptly, listing each disputed item separately with your evidence, and keep a copy of the letter and its proof of sending.

Disputing one item without disputing the whole statement

Suppose a statement deducts $250 for carpet cleaning, $300 for a damaged countertop, and $150 for repainting, from a $2,400 deposit, leaving $1,700. You accept the countertop repair but dispute the other two items as wear and pre-existing fading. The clearest response accepts $300, disputes $400, and claims a corrected refund of $2,100 — a single figure to settle, separating agreed from disputed items. If the landlord replies with invoices, compare them with your move-in evidence before replying again.

What this guide does not tell you

This guide walks through the on-time California refund only: the limit, the 21-calendar-day deadline, and the itemized statement. It does not cover a missed deadline (see the companion guide linked below), penalties, court procedures, or filing rules — check the official source for those. It does not state another state's rule, define the small-landlord exception, or decide any individual deduction, which turns on the lease, the item's age and prior condition, and the evidence.

Sources

• California AB 12, Civil Code 1950.5 — generally 1 month's rent; 2 months for a small landlord as defined in the statute; return generally within 21 calendar days after vacating, with an itemized statement for deductions.
• For city ordinances, the small-landlord definition, and any penalty or court procedure: Check official source — the California Legislative Information official site and your city's official housing pages.

Related: California missed security deposit deadline · How much security deposit can a landlord charge? · Security Deposit Calculator

Frequently asked questions

What is California’s deposit limit?

Generally one month’s rent under AB 12, with a two-month exception for small landlords as defined in the statute.

How long does a landlord have to return a deposit in California?

Generally 21 calendar days after the tenant vacates, with an itemized statement for any deductions.

Can a city require less than the state limit?

Yes. City ordinances may be stricter and may override state rules. Check the official source for your city.

How do I count 21 calendar days?

Add 21 days to your vacating date, counting weekends and public holidays. If you vacate on 1 October, the deadline is 22 October. Do not convert the period to business days.

What should an itemized statement show?

Each deduction as its own line, with what it relates to and its amount, so the total deducted and the refund due can be checked line by line against your evidence.

What if I disagree with only one deduction?

Dispute that item alone, accept the rest in writing, and state the corrected refund total you are claiming. A partial dispute is clearer than rejecting the whole statement.

What if the landlord sends a statement on time but no refund?

Write promptly with the statement, the amount shown as due, and the date it should have arrived, and keep proof of sending. Check the official source for the remedy if the refund still does not arrive.

Do I need to give a forwarding address?

As a practical matter, yes, and in writing with proof of sending. Without a forwarding address, a landlord cannot send the refund to you, and a dispute about delivery becomes much harder to resolve.

What if I moved out before the lease ended?

Record the actual vacating and key-return dates separately from the lease end date, and check the official source and your lease for which date starts the 21-day count in your situation.

Same warning as above: this is general information, not legal advice — check the official source for your city and state.

Last updated: 2026-10-25. Last verified for state rules: 2026-10-25.