TL;DR — 30 seconds
California has no separate pet-deposit category. Any refundable amount you hold against potential pet damage counts toward AB 12's one-month deposit cap. The clean fix: charge monthly pet rent instead. Pet rent is rent, not a deposit, and doesn't aggregate against the cap. Service animals and ESAs are exempt from any pet rent, deposit, or fee.
The contrarian fact
The phrase "pet deposit" has appeared in California residential leases for decades. It's never had its own legal category. Under Civil Code §1950.5(b), every refundable amount held against future damage is part of the "security deposit," regardless of what the lease calls it. AB 12's one-month cap doesn't carve out pet deposits. It can't, because pet deposits aren't separate from security deposits to begin with.
The practical implication: most California landlords who collect a full one-month security deposit plus a "pet deposit" on top are over the cap. The over-cap amount is recoverable by the tenant, and a court can add the §1950.5(l) bad-faith penalty on top.
What "pet rent" is, and isn't
Pet rent is monthly recurring rent. It's collected like rent, ledgered like rent, and treated like rent for §1950.5 purposes. It doesn't aggregate against the security deposit cap.
The math on a $2,500-rent unit:
- Old standard lease. $2,500 security deposit + $500 pet deposit = $3,000 in deposits. AB 12 cap is $2,500. Over the cap by $500.
- Same exposure, restructured. $2,500 security deposit + $50/month pet rent ($600/year). Under the cap. Same revenue, no §1950.5 issue.
The label doesn't save you
Courts read substance over label. Calling something "pet deposit," "pet fee," "pet damage reserve," or "additional security" doesn't change the §1950.5 analysis. If any portion of the money would be refundable at move-out absent damage, it's a deposit and counts toward the cap.
Non-refundable pet fees — the gray zone
A genuinely non-refundable one-time fee for the privilege of having a pet sits in a gray zone. Courts in California have scrutinized these closely; some are upheld as legitimate fees, others have been recharacterized as disguised deposits. Two factors that distinguish:
- True non-refundability. The fee is collected once, never returned regardless of conduct.
- Tied to something specific. Carpet cleaning, screening cost, or another identifiable service rather than "damage reserve."
Even so, the cleanest path is monthly pet rent. It's clearer legally and easier to document.
Breed and weight restrictions
Breed restrictions and weight limits on ordinary pets are enforceable as private contract terms. Most California leases include them. The carve-out is service animals and emotional support animals: those are accommodation animals under FEHA and the FHA, not pets, and breed/weight restrictions cannot apply to them. See the service animals page.
Drafting a defensible pet clause
- State the pet policy clearly: allowed or not.
- If allowed, state any breed, weight, or count restrictions.
- Set pet rent as a monthly amount in the rent section of the lease.
- Don't include a refundable "pet deposit" line. If you have one in your current template, remove it.
- Separately acknowledge that service animals and ESAs are not pets and not subject to the policy, fees, or rent.
- Tenant agrees that damage caused by the pet is recoverable through the security deposit at move-out (under standard §1950.5 rules).
Common questions
Can a California landlord charge a separate pet deposit?
No. California has no separate pet-deposit category. Refundable amounts count toward the §1950.5 cap. Under AB 12, the cap is one month's rent for most landlords. A separate pet deposit on top of full security deposit puts you over.
What's the difference between pet rent and pet deposit?
Pet rent is monthly recurring rent and doesn't aggregate against the deposit cap. Pet deposit is refundable money held against damage and does aggregate. The distinction is decisive under AB 12.
Can a landlord prohibit certain dog breeds?
Yes for ordinary pets. No for service animals and ESAs — breed restrictions can't apply to accommodation animals under FEHA and the FHA.
What about a non-refundable pet fee?
A genuinely non-refundable one-time fee may be permissible as a separate item, but California courts scrutinize the substance. If any portion would be refundable absent damage, it's a deposit. Cleanest path: monthly pet rent.
CA Landlord Laws