Key Takeaways
- Unfurnished units: maximum 2 months’ rent — Civil Code §1950.5(c) sets a hard cap; deposits beyond this are illegal and must be refunded immediately
- Furnished units: maximum 3 months’ rent — Includes all furniture, appliances, and functional items; this higher limit recognizes greater wear potential
- Violations carry automatic penalties — Tenants can sue for the unlawful deposit amount plus up to $600 in statutory damages (AB 12), plus attorney fees
- Deposit must be returned within 21 days — Failure to return or itemize deductions triggers an additional $150+ penalty per violation
- No increase allowed mid-lease — Deposits are locked at lease signing; raising deposits requires a new lease agreement
- Combined limits apply — If you collect both a security deposit and pet deposit, the total cannot exceed the statutory cap for your unit type
Why Security Deposit Limits Matter: The Compliance Risk California Landlords Face
A single security deposit violation in California can expose you to a lawsuit where the tenant wins automatically. You don’t have to act in bad faith or cause actual harm—the law is strict liability. Collect $4,500 on a $1,400/month unfurnished unit, and you’ve violated Civil Code §1950.5(c). The tenant can sue, and you’ll owe the excess $1,700 back, plus $150–$600 in statutory damages, plus their attorney fees.
This isn’t theoretical. The California Department of Consumer Affairs, the state attorney general’s office, and local legal aid organizations field hundreds of these complaints annually. Tenant advocacy groups specifically screen for deposit violations because they’re the easiest cases to win.
The distinction between furnished and unfurnished units is not intuitive—and many California landlords get it wrong. You can’t charge the same deposit for a bare unit as you do for one with a full kitchen, bedroom set, and washer/dryer. The law recognizes that furnished properties justify a higher deposit because tenants have more to damage.
This guide walks you through the exact law, the compliance triggers, the dollar amounts, and what to do if you’ve already collected deposits. We’ll also show you how to document your unit type correctly so you can defend your position if a tenant challenges your deposit.
California’s Security Deposit Cap Structure: The Law
Unfurnished Units: 2 Months’ Rent Maximum
California Civil Code §1950.5(c) states the baseline: “No landlord shall demand or receive security in an amount or value in excess of an amount equal to two months’ of the rental payment, in the case of an unfurnished residential building, unit, or portion thereof.”
This cap applies whether the unit is a single-family home, apartment, condo, or duplex unit. The deposit is tied to the monthly rent amount at the time the lease is signed. If rent is $1,500/month, the maximum deposit is $3,000. Period.
The deposit cannot increase during the lease term, even if you raise rent for the next lease. When the tenant moves out, you return their deposit based on the amount collected—not on the new rent amount.
Furnished Units: 3 Months’ Rent Maximum
The same statute permits a higher cap for furnished units: “No landlord shall demand or receive security in an amount or value in excess of an amount equal to three months’ of the rental payment, in the case of a furnished residential building, unit, or portion thereof.”
A furnished unit is one where the landlord provides functional furniture as part of the lease. This includes:
- Beds (frame, mattress, and bedding)
- Dining table and chairs
- Living room seating (sofa, chairs)
- Kitchen table
- Appliances beyond what the building provides (additional refrigerator, microwave, coffee maker)
- Window coverings (curtains, blinds)
- Lighting fixtures (lamps, overhead fixtures)
- Rugs and area carpets
What does NOT make a unit “furnished”: Built-in appliances (stove, oven, dishwasher) do not count. These are considered part of the unit itself. Same with standard wall-to-wall carpeting or permanent fixtures. A unit with a furnished bedroom but unfurnished living areas is still generally treated as furnished if the landlord-provided items meet the statutory test.
If you’re borderline—say, you provide living room furniture but tenants supply their own bedroom set—document your position clearly in the lease. This becomes evidence if a dispute arises.
The AB 12 Amendment: Damage to Your Liability Exposure
Assembly Bill 12 (effective 2020, codified in Civil Code §1950.5) dramatically increased penalties for deposit violations. Under the original statute, unlawful deposits were refundable but no additional penalty applied. Now:
If you collect, demand, or retain a security deposit in violation of the limits, the tenant can sue and recover:
- The full amount of the unlawful deposit (minus lawful deductions)
- An additional penalty of $150 per violation, OR the amount of the actual damages, whichever is greater (§1950.5(b)(2))
- Attorney fees and court costs
- Interest at the rate prescribed by law
In practice, the “$150 per violation” is often interpreted as a floor. A tenant attorney will argue $600 or more in statutory damages based on the egregious nature of the violation or multiple breaches (e.g., retaining the excess AND not itemizing deductions).
Example: You collect $5,000 as a “security deposit” on a $1,500/month unfurnished unit. The legal limit is $3,000. The tenant sues.
- Unlawful deposit: $2,000
- Statutory penalty: $150–$600+
- Attorney fees: $2,000–$5,000+
- Your total liability: $4,150–$7,600+
And you still have to return the $2,000. This is why deposit violations are actively prosecuted by tenant groups—the math works for the plaintiff.
What Counts as “Rent” for Deposit Calculation Purposes
The deposit cap is tied to monthly rent. But what is rent, exactly?
Rent includes:
- Base monthly payment
- Utilities paid by tenant (if lease specifies)
- Parking fees (if mandatory and non-severable from the lease)
- Pet rent or pet fees (ongoing, recurring)
Rent does NOT include:
- One-time application fees
- One-time lease signing fees (prohibited under AB 2654)
- Cleaning fees charged at move-out
- Late fees
- NSF fees
- Administrative fees (absent specific statutory authorization)
This distinction matters. Some landlords try to circumvent the deposit cap by collecting a “cleaning fee,” “administrative fee,” or “move-in preparation fee” that is actually a security deposit in disguise. California courts have consistently ruled these unlawful if they’re retained and applied to pre-existing damage or missing items—the hallmark of a security deposit.
If you charge a pet deposit, that counts toward your total. If rent is $1,500/month on an unfurnished unit, and you charge $500 for a pet deposit and $2,500 for a security deposit, you’ve exceeded the cap by $500. The total cannot exceed $3,000 for unfurnished units.
Documenting Unit Type: The Paper Trail That Protects You
The most common dispute: Is the unit furnished or unfurnished?
The burden of proof is on you, the landlord. If a tenant challenges your deposit amount and claims the unit was unfurnished, you need to show it was furnished at lease signing.
Documentation that holds up in court:
- Move-in checklist signed by tenant listing all furnishings with condition notes
- Dated photos of the unit at lease signing (with timestamps, not generic stock photos)
- Lease addendum or rider specifically labeled “Furnished Unit Inventory” with itemized list
- Initial condition report describing furniture, fixtures, and appliances
Documentation that does NOT hold up:
- “Furnished” typed in the lease with no itemization
- Photos without metadata showing when taken
- Handwritten notes without tenant signature or acknowledgment
- After-the-fact documentation created when a dispute arises
Best practice: Use a detailed move-in checklist that both you and the tenant sign. List every furnishing, its condition (excellent, good, fair, worn, damaged), and take photos that show the date and the item’s location in the unit. This creates a contemporaneous record that’s hard to challenge.
If you’re using LeaseBase, you can store move-in checklists and photos in the tenant file with timestamps, ensuring your documentation is date-stamped and retrievable if litigation occurs.
Deposit Return Requirements: The 21-Day Rule and Itemization
Even if your deposit amount is legal, how you handle the return is a separate compliance issue.
California’s deposit return rules (Civil Code §1950.5(e)):
- Landlord must return the deposit or itemized deduction statement within 21 calendar days of lease termination
- If any deductions are made, a written itemization must accompany the partial or full refund
- The itemization must include the reason for each deduction and the amount
- If the deposit was in a bank account earning interest, the tenant must receive accrued interest
- Return must be sent to the address provided by tenant (typically their forwarding address at move-out)
Penalties for failure to return or itemize:
- If you wrongfully retain the deposit: tenant recovers the full amount plus statutory damages of up to $600
- If you fail to itemize: tenant can recover the full deposit plus up to $600, even if the deductions were reasonable
- These penalties are in addition to attorney fees
This is critical: A proper deposit amount collected illegally from the start is separate from a legal deposit mishandled at return. You can violate the law in two different ways, and the tenant can sue on both counts.
Example of improper itemization: You return $2,000 of a $3,000 deposit with a one-line note: “Carpet damage: $1,000.” A court will likely find this insufficient. The tenant can demand the full $3,000 plus penalties because you didn’t provide adequate detail. (“What carpet damage? Which areas? Why $1,000?”) Proper itemization would include photos, measurements, repair quotes, or receipts showing the actual cost of repair or replacement.
Combined Deposits and Rent Payment Structures: Avoiding Hidden Violations
Multiple Deposits (Security + Pet + Other)
Some landlords collect multiple deposits and argue each is separate, so the total can exceed the statutory cap. This does not work.
The law is clear: The aggregate amount of security deposits, pet deposits, and any other deposit-like fees cannot exceed the statutory limit. California courts and the state Attorney General have consistently ruled that creative naming doesn’t change the nature of the obligation.
Compliant example: Unfurnished unit, $1,500/month rent. You can collect:
- Security deposit: $2,500
- Pet deposit: $500
- Total: $3,000 (legal)
Non-compliant example: Same unit. You collect:
- Security deposit: $2,000
- Pet deposit: $1,000
- Move-in cleaning fee: $1,500 (retained, applied to damage)
- Total: $4,500 (illegal — exceeds the $3,000 cap by $1,500)
If the move-in cleaning fee is non-refundable and used to cover cleaning (not held as security), it may be permissible as a separate charge. But if it’s refundable or applied to damage, it’s a deposit and counts toward the cap.
Split Rent Payment Structures
Some landlords and tenants agree to split rent payment—say, $700 on the 1st and $750 on the 15th. When calculating the deposit cap, use the full monthly rent ($1,450 in this case), not one payment.
Similarly, if you charge weekly or bi-weekly rent, convert to a monthly figure to determine the deposit limit. If weekly rent is $350 (roughly $1,400/month), the deposit limit is $2,800 for an unfurnished unit.
Rent Increases and Deposit Limits: Can You Raise the Cap?
Short answer: No, not during the current lease.
Once you’ve collected a deposit at lease signing, that deposit amount is fixed for the duration of the lease. You cannot demand an additional deposit if you raise rent mid-lease (subject to local rent control laws).
When the lease renews or a new tenant moves in, you can reassess the deposit based on the new rent amount.
Example:
- Year 1: Unfurnished unit, $1,500/month rent, $3,000 security deposit collected
- Year 2: You raise rent to $1,600/month. The existing deposit remains $3,000. You cannot collect an additional $200.
- New tenant, Year 3: Rent is now $1,600/month. You can collect up to $3,200 from the new tenant.
This rule protects tenants from escalating deposit demands but also means you need to be strategic about deposits when you anticipate rent increases.
Compliance Checklist: Security Deposit Collection and Return
At Lease Signing:
- ☐ Determine unit type (furnished vs unfurnished) and document in writing
- ☐ Calculate maximum deposit based on current monthly rent (2x for unfurnished, 3x for furnished)
- ☐ Include total deposit amount in lease agreement, broken down by type (security, pet, etc.)
- ☐ Advise tenant in writing that deposit will be held in a bank account, per §1950.5(e)
- ☐ Provide bank account information and acknowledge that interest may accrue
- ☐ Take timestamped photos and complete move-in checklist with tenant signature
- ☐ List all furnishings (if furnished unit) with condition notes on checklist
- ☐ Ensure total of all deposits (security + pet + other) does not exceed statutory cap
During Tenancy:
- ☐ Do not collect additional deposits or “deposit increase fees” if rent rises
- ☐ Keep deposit in a separate, interest-bearing trust account (if local law requires)
- ☐ Do not commingle tenant deposits with personal funds
- ☐ Document all unit damage with photos and dates
At Move-Out:
- ☐ Conduct final walkthrough within 48 hours of lease termination (if possible)
- ☐ Take timestamped photos comparing move-in vs. move-out condition
- ☐ Obtain repair quotes or receipts for any claimed deductions
- ☐ Prepare itemized deduction statement with reason, amount, and supporting documentation
- ☐ Return remaining deposit + interest within 21 calendar days
- ☐ Send to tenant’s forwarding address via mail or method tenant provides
- ☐ Keep copies of all correspondence and deduction itemizations in your file
What to Do If You’ve Already Collected Unlawful Deposits
If you’ve been collecting deposits above the legal limit, you’re exposed. But there are steps to mitigate liability.
Tenant Is Still Occupying the Unit
Option 1: Return the excess now
Send the tenant a check for the overage with a letter explaining that you’ve reviewed your records and want to bring the account into compliance. This shows good faith and may prevent a claim (though it’s not a guarantee). A tenant can still sue for historical violations, but returning the excess demonstrates corrective action.
Option 2: Adjust the deposit on renewal
When the lease renews, reduce the deposit to the legal amount and return the excess. Again, document your reasoning and get written acknowledgment from the tenant.
Tenant Has Already Moved Out
If you retained an unlawful deposit and have already returned it (with or without deductions), you’ve still violated the law. The statute does not expire. A tenant can file a complaint with the local housing authority or sue years later. That said, if the deposit was already returned, the damage is limited to the statutory penalty ($150–$600 plus attorney fees), not the deposit itself.
If you retained the excess (did not return it), the tenant can sue for the full excess plus penalties and attorney fees.
Prospective Compliance
Going forward, audit your current lease agreements. Verify that every deposit—security, pet, and otherwise—stays within the cap for that unit type. If you find violations, consult with a local tenant attorney or your state bar association to understand your exposure and next steps.
Local Variations: Cities with Stricter Rules
California’s state law sets the ceiling. Some cities and counties have enacted additional protections that lower the cap or add requirements.
San Francisco Rent Control Ordinance
San Francisco does not change the deposit cap (2x/3x remains), but it requires landlords to provide a receipt for all deposits and to place deposits in an escrow account earning at least 5% annual interest. The city also imposes strict itemization requirements and allows tenants to inspect deductions before final return.
Failure to comply results in fines up to $2,500 per violation and potential liability for the full deposit plus treble damages.
Los Angeles Rent Stabilization Ordinance
LA’s RSO does not lower the deposit cap but requires landlords to disclose the use of any security deposit information and to provide a detailed written list of any proposed deductions within 30 days of move-out. Disputes over deductions can trigger mediation requirements.
Oakland and Berkeley
These cities also impose additional itemization and receipt requirements beyond the state law. Both require landlords to place deposits in interest-bearing accounts and to return interest accrued during the tenancy.
Key takeaway: Even if you’re compliant under Civil Code §1950.5, check your local city or county ordinance. Many California municipalities layer additional requirements on top of state law. LeaseBase’s California compliance guide is updated for these local variations, helping you stay current as cities enact new rules.
FAQs: Security Deposit Limits
Q: Can I charge a “non-refundable” deposit to avoid the 2-month/3-month cap?
A: No. Calling a deposit “non-refundable” or giving it a different name does not change its legal nature. If it’s held and applied to damage, unpaid rent, or other tenant obligations, it’s a security deposit under Civil Code §1950.5 and is subject to the statutory cap. The law looks at the substance of the transaction, not the label. Charging a “non-refundable” fee without holding it as security (e.g., a genuine application processing fee) is different—but if you’re retaining it, it counts as a deposit.
Q: Can I collect a larger deposit if the tenant has poor credit or prior evictions?
A: No. The statutory cap applies to all tenants, regardless of credit, income, or rental history. Civil Code §1950.5(c) does not contain exceptions. Some courts have interpreted it to prohibit deposits based on tenant characteristics (credit risk, prior evictions) because that would constitute impermissible discrimination. Collect the same maximum deposit for all qualifying tenants, and use screening criteria uniformly.
Q: What if the tenant and I agree in writing to a higher deposit?
A: An agreement between landlord and tenant does not override state law. Tenant consent is irrelevant. Civil Code §1950.5 is a statutory cap that cannot be waived. Even if a tenant signs a lease acknowledging a $4,000 deposit on a $1,500/month unfurnished unit, the deposit is illegal, and the tenant can sue for the excess plus penalties and attorney fees. Courts routinely reject the “they agreed to it” defense.
Q: Do I have to put the deposit in a separate account, or can I commingle it with my personal funds?
A: California law requires deposits to be held in trust. Civil Code §1950.5(e) mandates that deposits be placed in a “neutral depository” (typically a bank account) separate from the landlord’s own funds. Some local ordinances (San Francisco, LA, Oakland) have stricter requirements and specify the interest rate the account must earn. Commingling deposits with personal operating funds violates the law and can result in liability for the full deposit plus penalties, even if you later return the money. Use a dedicated business account for tenant deposits.
Q: If I have multiple units, can I pool all tenant deposits into one account?
A: Technically, yes, as long as the account is a trust account separate from your personal funds and you track each tenant’s deposit individually. However, best practice is to use separate accounts or a detailed ledger system that clearly attributes each deposit to a specific tenant and unit. If commingling, ensure your accounting is so clear that you can produce a statement showing each tenant’s deposit balance on demand. Ambiguity about which deposit belongs to which tenant can result in disputes and claims that deposits were misappropriated.
Q: Can I increase the deposit for the next tenant if I raise the rent significantly?
A: Yes, but only for new tenants or lease renewals. When a new tenant signs a lease, calculate their deposit based on their rent amount. If rent is now $2,000/month (up from $1,500), the new deposit cap is $4,000 for an unfurnished unit. However, you cannot demand more from an existing tenant during their current lease term, even if you raise their rent.
Summary: Compliance in Practice
California’s security deposit law is straightforward in principle but dangerous in execution. The $3,000 cap for unfurnished units and $4,500 for furnished units (at $1,500 and $1,500 rent respectively) are not suggestions—they’re hard limits. Exceeding them exposes you to automatic liability, statutory penalties, and attorney fees.
The most common violations occur because landlords:
- Misclassify units (charging furnished prices for unfurnished units)
- Combine multiple deposits without tracking the aggregate
- Fail to itemize deductions properly at return
- Try to circumvent the cap with “fees” that function as deposits
Each of these is preventable with clear documentation, accurate classification, and timely return procedures.
Self-managing landlords who handle deposits correctly report fewer tenant disputes, shorter move-out timelines, and confidence that their practices will hold up if challenged. The best defense is a well-documented, compliant deposit collection and return process from day one.
Tools like move-in checklists, timestamped photos, and itemized deduction statements are not bureaucratic overhead—they’re your evidence that you followed the law. If you’re managing multiple units or need to scale your compliance processes, LeaseBase’s lease operations module helps you standardize deposit collection, track deposits across units, and automate the move-out itemization process. You can also use LeaseBase’s compliance engine to flag deposit violations before they occur, ensuring your deposits stay within legal limits for your unit type and location.
The bottom line: Know your unit type, calculate the correct cap, collect only what the law allows, and return deposits with proper itemization within 21 days. Compliance is not complex—but violations are expensive.
Disclaimer
This article is for informational purposes only and does not constitute legal advice. California landlord-tenant law is complex, and local ordinances add additional requirements beyond state statute. Consult a qualified attorney licensed in California for guidance specific to your situation, your city, and your units. LeaseBase is a compliance tool, not a substitute for legal counsel.
