You Can Probably Charge Two Months. Here's Why I Wouldn't.

Since July 1, 2024, AB 12 has capped residential security deposits in California at one month's rent — furnished or unfurnished, which ended the old two-and-three-month structure.

Most owners reading this stopped there and set their deposit at one month. Which is fine, but it means they never found out the rule doesn't apply to them.

The exception most accessory dwelling unit owners qualify for

The statute preserves a two-month deposit for small owners. To qualify, you must own no more than two residential rental properties collectively including no more than four dwelling units offered for rent, and you must be a natural person or a limited liability company in which all members are natural persons.

A homeowner living in the main house and renting out one accessory dwelling unit (ADU) is one property, one unit offered for rent. Not close to the line. Even a couple who moves out and rents both the house and the ADU is one property, two units. Still qualifies.

Two cautions, and both are about you rather than about the property.

The statute names only two qualifying forms of ownership: a natural person, or an LLC in which all members are natural persons. It does not mention trusts. Some industry summaries say a family trust qualifies; the code section doesn't say so. If you hold title in a trust — and many Ventura County owners do — that's a question for your attorney before you set a two-month deposit, not after.

The statute says "two residential rental properties." It does not say two in California. On its face that counts every rental you own anywhere, because the test is about you, not about the property you're renting out. I've found no case law testing whether it reaches out of state, so I won't tell you it's settled. But if you own a rental in Arizona or Texas — and plenty of Ventura County owners do — don't assume the exception is yours without asking someone who can read the whole statute against your situation.

That pattern is worth noticing, because it recurs. California increasingly writes owner-status tests rather than property tests. AB 12 asks who you are and how much you own. The AB 1482 single-family exemption asks whether you're a REIT, a corporation, or an LLC with a corporate member. Small owners get caught by these because they think of themselves as "one house" people and never check whether the statute agrees.

The exception that does not apply here as often as you'd think

Here's the part that matters in this county specifically, and that I've never seen a statewide guide flag.

The small landlord exception does not apply when the tenant is a service member. They're capped at one month's rent regardless of how small you are, who owns the property, or what the lease says.

We have Naval Base Ventura County. Between Point Mugu and Port Hueneme, active duty personnel and their families are a real share of the rental market in Oxnard, Camarillo, and Port Hueneme — and an ADU near a base is close to an ideal rental for a junior officer on a three-year rotation.

So the two-month deposit you're entitled to charge becomes unlawful the moment you rent to exactly the tenant your unit is best suited for. If you set a blanket two-month policy and advertise it, you've published a term you cannot apply to a substantial part of your applicant pool.

What counts toward the cap

The number isn't just the thing labeled "security deposit."

Pet deposits count. Last month's rent collected up front counts. Cleaning fees and other advance payments count. The cap is on the total you hold, not on any one line item.

Which closes the workaround owners reach for — one month's deposit plus a separate pet deposit plus last month's rent is a three-month collection wearing different labels, and relabeling it doesn't change what it is.

Assistance animals are separate ground entirely: no pet deposit and no pet rent applies to them at all.

Why I'd take one month anyway

You're allowed two. I'd still take one, for three reasons that have nothing to do with compliance.

It's your applicant pool. Two months' deposit plus first month's rent on a $2,400 ADU is $7,200 at signing. That's a real filter, and what it filters for isn't tenant quality — it's cash on hand. Plenty of excellent long-term tenants don't have $7,200 liquid.

It doesn't protect you as much as you think. A larger deposit doesn't reduce damage; it just gives you more to argue over. The thing that actually protects you is documentation at move-in, and that costs nothing.

A bigger deposit is a bigger target. The 21-day itemization deadline applies either way, and bad-faith retention exposes you to up to twice the deposit in statutory damages. Doubling the deposit doubles the ceiling on a claim against you, on a rule that's easy to miss the first time you use it.

The deposit return process is where most owners actually lose money, and it's the best-covered topic on this site. The evidence chain — what to photograph and when — is in Congratulations, Landlord: You're Now a Crime Scene Investigator. The seven documents that have to exist before anyone is thinking about a courtroom are in The File That Holds. Read both before your first move-out, not during it.

The Backyard Landlord

There are two failure modes specific to renting a unit in your own yard, and they're opposites.

The first is charging nothing. Somebody's nephew needs a place, he's a good kid, the unit's sitting empty, and taking a deposit from someone you know feels adversarial. Then he moves out and the flooring needs replacing and you have no deposit and no documentation and a relationship you now can't repair.

Take a deposit. From everyone, including people you know. It isn't a statement about them.

The second is the one that catches careful owners. You live thirty feet away. You see the unit constantly. You know exactly when the screen door got bent and exactly who did it, and it feels absurd to photograph a unit you can see from your kitchen window.

But "I watched it happen" is not evidence, and proximity is not documentation. When a deposit dispute reaches small claims, what you saw personally is testimony the other side will contradict. What you photographed at move-in is not.

And there's the part nobody says out loud. A deposit dispute with a normal tenant ends when they cash the check. A deposit dispute with a backyard tenant happens while they're still living thirty feet away, and continues for however many weeks remain on the tenancy. Every dollar you withhold, you withhold from a person who shares your driveway.

That's the real argument for taking one month, documenting everything at move-in, and returning it fast.