The County Rent Registration Deadline Is September 30. The Late Fee Is the Small Part.

For Owners · Unincorporated Los Angeles County · September 2026 · 8 min read

If your rental sits in an unincorporated pocket of Los Angeles County, your annual registration with the Department of Consumer and Business Affairs is due September 30. Miss it and you owe a late fee. That is the cheap consequence. The expensive one is that an owner who is not registered and current on fees cannot raise the rent at all, and cannot pass through costs, until the account is square.

For a fourplex sitting on the 2026–27 allowable increase, that is real money every month it drags on. And the owners most likely to miss the deadline are not the ones ignoring the mail. They are the ones who never realized the County writes their rent rules in the first place.

First question: is the parcel actually in unincorporated County?

This is the first thing to settle, and it is easy to get wrong. A mailing address tells you where the mail goes. It does not tell you who regulates the rent. Ladera Heights and View Park-Windsor Hills are unincorporated County, not City of Los Angeles and not Inglewood, even though they sit right up against both. Owners there answer to the County’s Rent Stabilization and Tenant Protections Ordinance and register with DCBA. Two streets over, the same building would answer to a city program with different numbers and a different due date.

There are two ways to settle it. The County Registrar-Recorder runs an address lookup at lavote.net/apps/precinctsmaps under “District Map Look Up By Address.” Or enter the address or Assessor Parcel Number in the FIND field on the rent registry portal itself, which will tell you whether the County has the parcel. DCBA points owners to both.

Fully covered, partially covered, and what each one costs

The County splits rentals into two tiers, and the tier decides both your fee and how much of the ordinance applies to you.

Fully covered units are two or more rental units on a single parcel in an unincorporated area, with a certificate of occupancy issued on or before February 1, 1995. Both halves of that matter. A 2006 fourplex in unincorporated territory is not fully covered, because of the date. A single house on its own parcel is not fully covered, whatever its age, because of the unit count. DCBA’s bulletin counts the units regardless of legal permit status, and treats accessory dwelling units as fully covered where the certificate of occupancy or equivalent permit issued on or before that same date. Mobilehomes offered for rent by the mobilehome owner are fully covered whatever the certificate date. These units get the rent cap and the just-cause rules. The fee is $90 per unit.

Partially covered units are everything else in unincorporated County territory that is not exempt from Chapter 8.52, which in practice means single-family homes, condominiums and newer multi-unit buildings. The County does not cap what you charge on these, though the state cap under AB 1482 (Civil Code section 1947.12) can still reach a house or condo depending on who owns it and whether the lease carries the exemption notice. The just-cause eviction protections still apply, and so does the registration requirement. The fee is $30 per unit.

Mobilehome spaces register at $90 per space. Submissions after September 30 can be assessed a late fee of ten percent.

It is easy to assume that no rent cap on a single rented house in Ladera Heights means there is nothing to file. It does not work that way. The $30 registration is still owed, and the just-cause rules still govern how a tenancy ends.

Why the deadline costs more than the late fee

DCBA’s rent increase bulletin lists what has to be true before a landlord may impose an annual increase on a fully covered unit. Registration is on that list. The landlord must have registered each fully covered unit with DCBA, be current on registration fees under County Code section 8.52.080, and be compliant with federal, state and local law under section 8.52.050(B).

That sits alongside the other preconditions: at least thirty days’ written notice under Civil Code section 827, at least twelve consecutive months since the last increase, delivery of the Notice of Tenant Rights, and specific language in the notice itself if you are claiming the Small Property Landlord or luxury unit rate. Small Property Landlords also have to self-certify with DCBA.

Here is what is on the table for the current year.

The formula is sixty percent of the change in CPI over the twelve months ending in September, capped at 3% general, 4% for a qualifying Small Property Landlord, and 5% for a luxury unit. An unregistered owner gets none of it. Nor does a missed increase bank up to be collected later. An increase takes effect only after a valid thirty-day notice, so months spent unregistered are simply months at the old rent.

The Small Property Landlord rate is worth a look before you file

The extra one percent goes to owners who meet one of three tests: you qualify for and receive a Homeowners’ Property Tax Exemption on the property the unit sits on; or you have an ownership or beneficial interest in, or control, only one rental property with no more than ten rental units; or you have an interest in no more than three rental properties with a combined total of no more than ten rental units, counting properties outside Los Angeles County.

That last clause catches people. A duplex in Windsor Hills plus two small buildings in another county still count together toward the ten. The rate also carries a self-certification requirement to DCBA and specific language in the increase notice, so it is not something to claim on the notice and sort out afterward.

What the registry will ask you for

Gathering this first makes the filing short. Each property needs both an owner contact and a property manager contact. Then, per unit: unit number, occupant type, the amenities included in the rent, the current rent and the base rent, the tenancy start date, the dates and amounts of past rent increases, tenant contact information, qualified tenant status, and preferred language.

The rent increase history is the field most likely to stall you if the leases have been sitting in a drawer. If your records are thin, reconstruct from bank deposits and notices before September 30 rather than guessing, because the registry is the record the County will read your future increases against.

Exemptions have to be requested before you submit

Some units qualify for an exemption rather than a fee. These are requests DCBA reviews against the documentation you upload, not a box you tick. The registry offers reasons including a unit vacant for the entire registration period, one rented to transients for thirty days or less, commercial use, occupancy by a property manager under a reduced-rent agreement, government-owned or otherwise exempt by law, and construction after February 1, 1995. You apply from the Addresses tab, choose Apply for Exemption on the unit, and upload documentation.

The sequencing matters. The exemption goes in before you submit the registration, not after. Fees can be paid online by credit card or e-check, by mail, or in person at DCBA.

Two timing rules that catch owners mid-year

A new tenancy does not wait for next September. If you decide to rent a unit, it has to be registered within thirty days of the tenancy start date.

And on fully covered units and mobilehome spaces you may pass through up to fifty percent of the annual registration fee to the tenant, paid in twelve equal monthly installments, unless you have agreed otherwise. The $30 partially covered fee is not on that list, and penalties and late fees are never passable. That is another quiet cost of filing late: the fee you could have shared becomes a penalty you absorb alone.

If the property is inside a city, this deadline is not yours

The County registry covers unincorporated areas only. Cities run their own programs on their own calendars, and the dates are not close together. Culver City landlords re-register each year by July 31. In the City of Los Angeles, landlords report the rent for every rental unit through the LAHD rent registry by the last day of February, alongside the annual RSO, JCO and SCEP bill. Beverly Hills and Inglewood each administer their own registration through their housing divisions, with their own fees and cycles.

Owners with buildings on both sides of a city line end up with three or four unrelated due dates in a year. That is worth a calendar entry rather than a memory. For the neighborhood detail on the unincorporated side, see our page on property management in Ladera Heights, View Park and Westchester, and for the city programs nearby, our Culver City, Inglewood and Beverly Hills pages.

Where a property manager fits

Registration is a records job more than a legal one. What we do on a County property is keep the unit roster, rents and increase history in a form the registry will accept, file by the deadline, keep the account current so the increase is available when the twelve months are up, and make sure the notice carries the Notice of Tenant Rights and the right rate language.

Our flat-fee management covers maintenance coordination and rent collection for one predictable monthly amount rather than a percentage of rent. Leasing is a separate fee. Call for a quote on your building and tell us which jurisdiction it sits in.

Frequently asked questions

I rent out one house in Ladera Heights. There is no rent cap on it, so do I still register?

Yes. A single-family home or condo in an unincorporated area is partially covered: no County rent cap, but the just-cause protections and the registration requirement both apply. The fee is $30 per unit and the deadline is the same September 30.

I missed last year. What happens if I register now?

You pay what is owed plus penalties and late fees, and you are not permitted to raise rent or pass through costs until you are current. Getting current is what restores the right, so the sooner the account is clean the sooner an increase becomes available to you.

Can I serve a rent increase notice now and register afterward?

No. The bulletin makes registration and being current on fees a condition that has to be satisfied before an increase is imposed, along with the thirty-day notice, the twelve-month gap and the Notice of Tenant Rights. Serving first and filing later does not cure it.

My building is a duplex with a garage conversion. Which units register?

Unit count and age both have to line up. Two or more rental units on the parcel gets you past the count, and DCBA counts them regardless of legal permit status, so an unpermitted conversion being rented is still a rental unit here. The property then also needs a certificate of occupancy issued on or before February 1, 1995 to be fully covered. An ADU is fully covered only where its own certificate of occupancy or equivalent permit issued on or before that date; newer ADUs are partially covered. If the permit status is genuinely unclear, that is a question for DCBA before you file rather than after.

Can I bill the tenant for the registration fee?

On a fully covered unit or a mobilehome space, up to fifty percent of the annual fee, spread across twelve equal monthly installments, unless you have agreed otherwise with the tenant. The $30 partially covered fee is not passable, and penalties and late fees are not passable at all.

How do I know whether I qualify as a Small Property Landlord?

One of three tests: you receive the Homeowners’ Property Tax Exemption on that property; or you control a single rental property with ten units or fewer; or you control no more than three rental properties totaling ten units or fewer, including any outside Los Angeles County. It carries a self-certification to DCBA and required language in the increase notice, so confirm it before the notice goes out.

Sources and disclaimer. Los Angeles County Department of Consumer and Business Affairs, Rent Registry (September 30 annual deadline, $90 fully covered and mobilehome space, $30 partially covered, ten percent late fee, thirty-day registration after a tenancy start, no rent increase or pass-through while fees are unpaid), Rent Stabilization Program (unincorporated-area lookup via the Registrar-Recorder district map and the registry FIND field), Rent Increase Bulletin, RSTPO, revised 3/2/2026 (1.919% / 2.919% / 3.919% for 7/1/2026–6/30/2027, the 60%-of-CPI formula and 3/4/5% caps, the six preconditions to an increase, fully covered definition, Small Property Landlord and luxury unit definitions), Rent Registry FAQs (fully covered versus partially covered, 50% pass-through in twelve equal monthly installments, penalties not passable) and the Rent Registry user guide (required property and unit fields, exemption reasons and the apply-before-submitting sequence, payment methods); City of Culver City, Landlord Rental Registration (annual re-registration by July 31); Los Angeles Housing Department, Rent Registry (rent reported for every unit by the last day of February); California Civil Code section 1947.12 (single-family and condominium exemption from the state rent cap). Current as of September 2026. This is general information for property owners from a California DRE-licensed property management company, not legal or tax advice. Fees, percentages and deadlines change; verify your property’s status with DCBA at (800) 593-8222 or rent.lacounty.gov, and consult a California landlord-tenant attorney before serving a rent increase or a termination notice.