Los Angeles Rent Increase Calculator

It depends which law covers the unit. Rent-stabilized units in the City of Los Angeles follow the RSO percentage set by the Los Angeles Housing Department. Unincorporated Los Angeles County has its own ordinance and its own rates. Where no local rent-control law applies, the statewide Tenant Protection Act may cap the increase instead. There is no single county-wide number.

The Los Angeles Housing Department publishes one allowable annual percentage per RSO year, and the calculator above shows the percentage verified for the period you select, together with the date that figure was last confirmed against the department’s own bulletin. Effective February 2, 2026, the former additional percentage for landlord-paid gas or electricity no longer applies. Source: Los Angeles Housing Department.

AB 1482, the California Tenant Protection Act, caps annual rent increases at 5% plus the applicable cost-of-living percentage, up to a maximum of 10%. The California Department of Justice publishes the resulting cap for each period and Los Angeles area; the calculator above uses that published figure for the period you select rather than recomputing an inflation figure. It does not apply to every property, and a local rent-control law may impose a lower limit.

Then the City RSO does not apply. Properties in unincorporated Los Angeles County fall under the County Rent Stabilization and Tenant Protections Ordinance. Properties in other incorporated cities follow that city’s own law, if it has one, or the statewide Tenant Protection Act. Confirm the jurisdiction before calculating.

RSO annual increases generally may be applied once every 12 months, and generally cannot be imposed within 12 consecutive months of the prior annual increase. Confirm your own increase history before serving a notice.

Under California Civil Code § 827, a residential rent increase of 10% or less generally requires at least 30 days written notice, and an increase greater than 10% generally requires at least 90 days. Longer requirements may apply under housing programs, agreements, or other law.