California 2026 rental regulations: a landlord’s guide

Renting out property in California means operating inside two layers of rules at once. The state sets a baseline that applies nearly everywhere, and your city or county may add stricter requirements on top. Neither layer stays still — the rent cap formula is recalculated, ordinances get amended, and notice rules change. The working assumption for any small landlord should be that the rule you learned two years ago has probably been updated. Confirm the current statute text and your city ordinance before you act.

The statewide rent cap is a formula, not a fixed number

The statewide cap comes from the Tenant Protection Act and the amendments that followed it. It does not give you a single percentage to memorise. Instead it works as a formula with two parts: an increase tied to the regional Consumer Price Index, plus a set margin, subject to an absolute ceiling. Whichever produces the lower number is the one that applies. In a low-inflation year the index figure governs. In a high-inflation year the ceiling does. Because of that, the cap is recalculated for each period, and you cannot simply roll last year’s number forward.

A few structural points matter:

• The cap applies to increases measured over a defined rolling period, not just to a calendar-year increase.
• Some properties are exempt. Single-family homes and condominiums owned by natural persons can fall outside the cap, but generally only if the tenant received the specific written notice the statute requires. If that notice was never given, the exemption may not be available to you.
• Recently constructed units are typically treated differently as well.

Whether any of these apply to your property is a question for the current statute text, your lease file, and a professional who can read both against your situation.

Just cause, notices, and how time changes the rules

Just cause means you need a stated, supportable reason to end a tenancy. The categories generally split into two groups. At-fault reasons include nonpayment of rent, a material lease violation, nuisance, and criminal activity. No-fault reasons include an owner moving in, withdrawing the unit from the rental market, or a substantial remodel. No-fault terminations in particular often carry a relocation assistance obligation, and the amount is set by statute or by local ordinance.

Just cause protections typically attach only after a tenant has occupied the unit past a statutory threshold. Below that, different rules may apply. Occupancy duration also drives notice periods. A rent increase requires written notice, and the notice period lengthens as the size of the increase grows. A termination requires notice as well, and that period lengthens with how long the tenant has lived there. The practical consequence is that a long-term tenant and a first-year tenant are not in the same procedural position, even in the same building.

Notice content matters as much as notice length. The wrong form, the wrong period, or the wrong method of service can invalidate an otherwise justified notice.

Deposits, habitability, and local ordinances layered on top

Security deposits are capped by statute, and the cap can differ depending on whether the unit is furnished and on who owns it. Beyond the cap, the handling rules are where landlords most often get into trouble. You generally must hold the deposit consistent with the statute, provide an itemised accounting of any deductions, include receipts or invoices for work performed, and return the balance within a statutory deadline after move-out. Normal wear and tear is not a deductible item. Confirm the current limit and the current deadline.

Habitability runs alongside all of this. You are generally required to maintain the unit in a condition fit for occupancy: working plumbing and hot water, heat, weatherproofing, sound structure, and functioning smoke and carbon monoxide detectors. When habitability fails, tenants may have remedies that can include repair-and-deduct or withholding rent, though those remedies typically come with their own procedural steps. Retaliating against a tenant for exercising a right is its own separate problem.

Then there is the local layer. Many California cities impose stricter rules, and charter cities in particular have more room to set their own. Los Angeles, Santa Monica, Oakland, and Berkeley are the familiar examples, but they are not the only ones. Local rules can include their own rent caps and rent boards, their own just-cause standards, registration and inspection requirements, relocation payments, and their own notice periods. Where the local rule is stricter than the state rule, the local rule generally controls. Unincorporated county areas can differ again from the city next door.

Before you raise rent or issue a notice: verify, then document

Work through this before you serve anything:

• Confirm the current state cap, then calculate using the correct regional index figure and the correct time window for your property.
• Confirm whether the unit is exempt, and whether the written notice that supports the exemption was actually delivered and retained.
• Check the city and county ordinance, not just the state rule.
• For a rent increase, confirm the required notice period for that specific increase amount.
• For a termination, confirm whether the reason is at-fault or no-fault, whether relocation assistance is owed, and what the correct notice period is for that tenant’s tenure.
• Ask your CPA how increases, deposits, and deductions show up in your own books, and consult an attorney for anything that touches eviction.
• Make sure your file actually supports the reason you are about to state. If it does not, the notice is not ready.

Record-keeping is what decides most disputes. Keep a dated file for each unit: the lease and every amendment, all notices with proof of service, the rent and payment ledger, and tenant correspondence. Photograph the unit at move-in and again at move-out, with dates on the images. Keep written repair requests and the records showing when and how each was completed. Keep the deposit accounting along with the receipts and invoices behind each deduction. Ask your attorney how long to retain these records and in what form.

The next step

If you own rental property in Southern California and you want a clearer picture of which state and local rules apply to your units, JT Management offers a free consultation to walk through your situation. We work with landlords and small property owners on the practical side of management, oversight, and compliance, and we can help you identify what to verify with your own attorney or CPA before you act. Reach out through jtmanage.com to set up a time.