LA RSO Registration & Annual Compliance: The 2026 Owner Checklist

For Owners · City of Los Angeles · Last updated: October 2026 · 12 min read

If you own multifamily property in the City of Los Angeles, the Rent Stabilization Ordinance (RSO) governs more than just rent increases. It governs an annual administrative cycle that owners must complete to keep their building in good standing — registration, fees, tenant notices, and accurate reporting on every unit. Miss a step and the expensive part is not the fee or the late charge. It is the stretch of months where the rent you are collecting is not legally collectible.

This is the plain-English 2026 RSO compliance checklist. What you owe LAHD each year, when, how to fix gaps from prior years, and the missed steps that are expensive to fix later.

Which buildings are RSO-covered

The default rule: a residential building in the City of LA with two or more units, built on or before October 1, 1978, generally falls under RSO. Some exceptions: single-family homes (generally exempt from RSO, though they may fall under AB 1482), condos owned by individuals, and newer construction. Some buildings that LOOK exempt aren’t — duplexes converted from single-family, mixed-use buildings with residential units, accessory units on RSO lots.

If you’re not sure your property is RSO-covered, check the LAHD RSO Status Database for your specific address. Don’t operate on assumption. The test is the certificate of occupancy date and the number of dwellings on the parcel, not what the building looks like from the sidewalk, and in neighborhoods where the stock is mostly pre-1978 multifamily it is worth knowing which of your units are stabilized and which are only subject to just cause. We cover that split by area on our Koreatown and Wilshire Center page and in our explainer on how LA rent control works.

The annual registration cycle

Every RSO-covered building requires annual registration with the Los Angeles Housing Department (LAHD), and the whole cycle arrives in one envelope. LAHD calls it the annual RSO/JCO/SCEP bill. It is assessed on a calendar year, due in January, and delinquent if the payment is not in by the last day of February. The fees are not prorated. A unit rented for three months of the year is billed exactly the same as one rented for twelve.

Three separate line items can appear on that bill, and which ones you see depends on what the units are:

The Just Cause line is the one owners do not expect. A unit can sit entirely outside rent stabilization and still owe that fee, which is how an owner of a newer building, a condominium or an accessory unit ends up holding a city bill for a program they were told did not apply to them. Letting any of the three drift past February adds half again to the RSO and Just Cause fees and doubles the SCEP fee, and the increase is a flat delinquent rate rather than interest that keeps running while you sort it out.

Paying is also not the same thing as being registered. LAHD treats the registration as complete only once the outstanding fees are paid and the rent amount, tenancy information and emergency contact details have been provided for every unit, including any the owner occupies. Those rent figures are due by the last day of February as well. The certificate you get at the end of it runs from July 1 through June 30 of the following year, so the billing year and the certificate year never line up on the same calendar. Owners who think in calendar years get caught by that in the spring.

Half of the RSO fee and half of the SCEP fee can be recovered from the tenant, but only once you have actually paid them, and only in monthly amounts at the rates the city publishes: $1.61 a month for the RSO fee and $2.83 a month for SCEP. The SCEP surcharge takes thirty days of advance written notice before the first one is collected. These are small numbers on a single unit and real money on forty, and they are also the kind of figure that gets republished when a fee changes, so take them from the current LAHD bulletin rather than from a spreadsheet you built two years ago.

No registration certificate, no rent

This is the part of the cycle that costs real money. Under the ordinance, a landlord may not demand or accept rent for a covered unit without first obtaining a valid written registration statement and either serving it on the tenant or displaying it in a conspicuous place at the property. LAHD states the underlying rule bluntly: an owner cannot legally collect rent unless the annual registration fee has been paid. The certificate is the proof, and the tenant is entitled to be given it or to be able to see it.

Courts have enforced that. In Yanez v. Vasquez, a 2021 decision of the Appellate Division of the Los Angeles Superior Court certified for publication, the landlord’s failure to secure and serve the registration certificate was held to violate the ordinance and to give the tenant an affirmative defense to the unlawful detainer. The rent was owed on paper. The case to recover possession still failed.

So the order of operations matters. Filing and paying puts you in good standing with the city. Serving the certificate, or posting it where tenants can read it, is the step that protects the rent you collect and any notice you may eventually have to serve. If you are holding a building where nobody can produce evidence that it was ever served, or where a prior owner’s paperwork went missing in the sale, that is worth an hour with a landlord-tenant attorney before you serve anything at all.

The Annual Rent Registry filing

Beyond the basic registration, owners must file an Annual Rent Registry (ARR) declaration reporting current rent levels for every unit. Required data per unit:

• Current monthly rent.
• Tenancy start date.
• Any rent increases applied during the year.
• Any utility allowance changes.
• Vacancy decontrol resets (if a tenant moved out and a new tenancy started).

This filing is what LAHD uses to verify your annual increases are within the allowable cap. Owners who file late or with inaccurate data risk LAHD audits, denial of future increases, and tenant overpayment claims that can go back years.

Tenant notices owners often miss

RSO-covered tenancies require specific notices that aren’t intuitive. Three that get owners in trouble:

1. Notice of Renter’s Rights

At tenancy start, you must provide a written disclosure of RSO rights — allowable increases, just-cause requirements, relocation assistance triggers, etc. Missing this disclosure can be raised as a defense in many subsequent disputes.

2. Annual Allowable Increase Notice

The increase has to be in writing with the notice period state law requires: thirty days, or ninety if it takes the rent more than 10% above the lowest rent charged in the previous twelve months. The city’s position is that rent, an increase included, is not legally collectible on a unit whose registration is not current, so get the year’s certificate paid for and served before the notice goes out. Stating the allowable percentage and the registration status in the notice itself costs nothing and heads off the first objection.

3. Just-Cause Termination Notices

If you ever terminate a tenancy for any reason (including non-payment, lease violation, or no-fault grounds), the notice must comply with both California Civil Code requirements AND LAHD’s just-cause specifications. The two overlap but aren’t identical — a notice valid under state law may fail under RSO.

The Systematic Code Enforcement Program (SCEP)

SCEP is the inspection program the third line on your bill pays for. LAHD aims to inspect Tier 1 properties at least once every four years and Tier 2 properties at least once every two. An inspector walks the building and the units looking for habitability problems. What gets written up is rarely exotic:

• Missing or non-functional smoke/CO detectors.
• Plumbing leaks or sub-floor water damage.
• Electrical issues — missing GFCI in kitchens/bathrooms, exposed wiring.
• Pest or vermin issues unaddressed by owner.
• Exit obstructions, missing handrails, broken stair treads.

Cited items come with a written order and, generally, thirty days to comply. An extension is not considered until the first re-inspection has happened and staff can see real progress, so asking for more time before anyone has come back out tends to go nowhere. Keep ignoring the order and the case moves to a General Manager’s hearing, which can place the property in the Rent Escrow Account Program, where tenant rent is paid into a city-controlled account instead of to you, or refer it to the City Attorney for prosecution. Owners almost never arrive there from one bad inspection. They arrive from a leak nobody fixed for a year.

Fixing prior-year gaps

If you bought a building from a previous owner who let registration lapse, or if you’re catching up on missed years, you’re not stuck. The steps:

1. Pull the building’s RSO status and registration history from LAHD.
2. File the missing annual registrations and pay the outstanding years, which will be assessed at the delinquent rate rather than the on-time one.
3. Audit each unit’s rent history against the allowable increase schedule for the years in question. Identify any over-increases that should be refunded.
4. Disclose to tenants any historical issues found, including potential refunds, before they’re discovered through complaint.
5. Consider engaging an attorney experienced in RSO catch-up to structure the disclosure and refund process correctly.

This is uncomfortable but the alternative — letting it surface in a tenant complaint or building sale due diligence — is significantly worse.

Mistakes to avoid in 2026

• “It’s a single-family, RSO doesn’t apply.” Check the city’s RSO Status Database before relying on it. Duplex conversions and ADUs can be classified differently.
• Failing to register a single year. One missed year is billed at the delinquent rate, and for as long as it sits unpaid the rent on that unit is not legally collectible. Catch up immediately rather than letting it stack.
• Treating ARR filing as optional. ARR data IS the basis for LAHD’s verification of your increases. Failure to file accurately puts the burden on you to prove every prior increase was legal.
• Serving an increase on an unregistered unit. A notice served before the year’s registration is current, or with the wrong notice period, is the easy one for a tenant to challenge. Confirm registration first, then state the allowable percentage in the notice.
• Surcharging the full fee, or surcharging before paying it. Half of each fee is recoverable, in monthly amounts at the rate LAHD publishes, and only after the city has been paid. Billing the tenant the whole fee, or billing it as one annual charge, is not what the rule allows.
• Treating the certificate as filing paperwork. It is a tenant document. Procuring it and never serving or posting it leaves the same exposure as not registering at all.
• Skipping the Notice of Renter’s Rights at lease signing. Easy to forget; expensive to omit. Use LAHD’s published template.

The owner’s annual RSO checklist

1. Confirm RSO status for each property (LAHD Status Database).
2. Pay the January bill, meaning the RSO, Just Cause and SCEP fees, before the last day of February.
3. File Annual Rent Registry (ARR) declaration with accurate rent data for every unit.
4. Calculate this year’s allowable rent increase percentage; plan tenant notices accordingly (30-day notice; 90-day if change > 10% against lowest 12-month rent).
5. Pass through the allowed portion of registration fees as a monthly tenant surcharge (with proper notice).
6. Confirm Notice of Renter’s Rights is on file for every active tenancy.
7. Prepare for any pending SCEP inspection (clear common areas, verify detectors, address known habitability issues proactively).
8. Review each unit’s rent ledger for the year for accuracy; address any over- or under-collection before year-end.

If the building is not in the City of Los Angeles

Everything above is the City of Los Angeles program, and it stops at the city line. The cities next door run their own rent ordinances on their own calendars, and filing with LAHD on time does nothing for a unit in another jurisdiction. The deadlines worth writing on a wall:

• Unincorporated LA County (Ladera Heights, View Park-Windsor Hills and the other county pockets): registration is due September 30 every year, and a unit that is not registered and current cannot take an increase at all. The full version is here: the County rent registration deadline.
• Culver City: register or re-register by July 31, $177 per unit as of July 1, 2026. A grace period runs to August 31, after which late fees accrue at 20% a month. The cap for increases effective June 1, 2026 through June 30, 2027 is 3.25%.
• Beverly Hills: annual registration with the city’s Rent Stabilization Division, due August 31 for 2026. Chapter 5 tenancies are capped at 3.37% and Chapter 6 at 3.6%, but the city re-sets the Chapter 5 figure monthly and Chapter 6 each June. Either way, only one increase per tenant per twelve months.
• Inglewood: properties with two or more units register in the city’s online Residential Registry, and the increase has to be recorded there after the 30-day notice goes out. Serving the notice is not the last step.

A checklist built around LAHD will not carry over, which is why we keep a separate page for each city: Inglewood, Culver City and Beverly Hills property management. Every one of these percentages is reset on a schedule, so confirm the current figure with the city in the week you serve rather than working from a number you saved last year.

Frequently asked questions

My RSO registration is current but tenant complained anyway. What now?

Complaints can be filed regardless of registration status, and LAHD will look at the complaint on its own merits. Being current does not make it go away, but being out of registration is a separate violation stacked on top of whatever the tenant raised, so it is the first thing to confirm before you respond.

Can I pass through SCEP fees to tenants?

Half of it, once you have paid it. LAHD’s published rate is $2.83 a month per unit, spread across twelve months rather than billed in one piece, and the first one takes thirty days of advance written notice. The RSO registration fee works the same way at $1.61 a month. You cannot surcharge a fee the city has not received, and both figures are reissued when the underlying fee changes, so check them in the year you bill.

If I buy an RSO building, am I liable for prior-owner violations?

In many cases yes — RSO violations attach to the building, not the owner. Due diligence before purchase is critical. Pull the full RSO history and SCEP inspection records before close, not after.

What if my unit is exempt — do I still register?

It can be. A unit outside rent stabilization can still sit under the Just Cause Ordinance, and those units appear on the same LAHD bill for the Just Cause fee and the SCEP fee if the building is inspected. Exemption from the rent cap is not exemption from the bill. Confirm your unit’s status with LAHD or counsel rather than assuming.

I paid the January bill. Does that mean I am registered?

Not on its own. The city considers registration complete when the fees are paid and the rent amount, tenancy details and emergency contact information are on file for every unit. Pay the bill, leave the rent registry blank, and you are an owner with a receipt and an incomplete registration.

I bought the building and there is no proof the certificate was ever served on the tenants. What now?

Get the current year’s registration in order first, then get the certificate served or posted, and keep evidence of when you did it. Whether the earlier gap creates exposure on rent already collected is a legal question that turns on the facts of the tenancy, and it is the right reason to call a landlord-tenant attorney rather than work it out from an article.

Sources and disclaimer. Los Angeles Housing Department, Annual RSO/JCO/SCEP Bill (calendar-year assessment, due in January, delinquent after the last day of February, fees not prorated, registration certificate required to collect rent), Billing Fee Schedule (per-unit regular and delinquent amounts for RSO, JCO and SCEP), Rent Registry (rent amount for every unit by the last day of February; registration complete only when fees are paid and rent, tenancy and emergency contact information are provided), Inspections and Fees (Tier 1 at least every four years, Tier 2 at least every two, thirty days to comply, extensions only after the first re-inspection, General Manager’s hearing, REAP and City Attorney referral), the Allowable Rent Increase bulletin and SCEP bulletin (50% of each paid fee recoverable at $1.61 and $2.83 a month, thirty days’ advance written notice, fee must already be paid), and the RSO Registration of Rental Property bulletin (certificate valid July 1 through June 30, service on the tenant, non-payment as an affirmative defense); Los Angeles Municipal Code section 151.05(A) (no landlord shall demand or accept rent without first procuring and serving or conspicuously displaying a valid written registration statement); Yanez v. Vasquez, Appellate Division of the Los Angeles Superior Court, filed April 22, 2021, certified for publication (failure to secure and serve the registration certificate as an affirmative defense to an unlawful detainer). Fee amounts, deadlines and procedures change, and the dollar figures above are the ones published as of October 2026. This is general information for property owners from a California DRE-licensed property management company, not legal advice. Verify your property’s status and current fees with LAHD, and consult a qualified California landlord-tenant attorney before serving a rent increase, a surcharge or a termination notice.