California Civil Code 1945 is the statute that keeps a tenancy alive after the lease term ends: when a tenant stays in possession and the landlord accepts rent, the law presumes the tenancy has renewed on the same terms, capped at a month-to-month arrangement when rent is paid monthly and never longer than one year.1California Legislative Information. California Civil Code 1945 No new signature is required on either side. The renewal happens by operation of law the moment the landlord cashes the next rent check.
What Section 1945 Says
The whole statute fits in one sentence. If a tenant remains in possession after the lease term expires and the landlord accepts rent, the parties are presumed to have renewed the hiring on the same terms and for the same period, subject to a one-month ceiling when rent is paid monthly and a one-year ceiling in every case.1California Legislative Information. California Civil Code 1945
The practical effect is that a tenant whose one-year lease ends on June 30 does not become a trespasser on July 1. If the landlord takes July’s rent, the tenancy continues as a month-to-month arrangement at the same rent and under the same lease terms that were in place the day before. The rent amount carries over. The pet rule carries over. The late fee clause carries over. Only the term shortens, to a month at a time.
How the Renewal Works in Practice
Acceptance of rent is the trigger. A landlord who wants a fixed-term lease to end cleanly on its stated expiration date has to stop accepting rent after that date; a landlord who keeps collecting is, under Section 1945, agreeing to a renewed tenancy on the old terms.
Because the renewal is automatic, most California tenancies that outlast their original lease drift into month-to-month status without anyone noticing a transition. That drift matters later. A landlord who decides a year into the holdover that the arrangement should end cannot simply refuse the next payment and change the locks. The termination side of the equation is governed by separate statutes with their own notice periods and, for many rentals, their own reason requirements.
Ending a Month-to-Month Tenancy
Once the tenancy has rolled into month-to-month status under Section 1945, either side can end it under Civil Code 1946.1 by giving proper written notice. The notice period depends on how long the tenant has been in the unit.
- If the tenant has lived there less than a year, the landlord must give at least 30 days’ written notice before the proposed termination date.2California Legislative Information. California Civil Code 1946.1
- If the tenant has lived there a year or more, the landlord must give at least 60 days’ written notice.2California Legislative Information. California Civil Code 1946.1
- A tenant giving notice must provide at least as much advance notice as the length of the rental period, which for a monthly tenancy is 30 days regardless of how long the tenant has lived there.2California Legislative Information. California Civil Code 1946.1
There is one shortened-notice route for landlords. If the property is a standalone unit such as a single-family home or condo and the owner has entered escrow with a buyer who intends to live there for at least a year, the landlord may give 30 days’ notice even to a tenant who has been in the unit longer than a year. That shortened window has to be used within 120 days of opening escrow and is available only once per tenancy.2California Legislative Information. California Civil Code 1946.1
Delivery matters. The notice must be served personally, by substituted service with a mailing, or by certified or registered mail. A verbal notice does not count. A text message or email does not count unless the lease specifically authorizes electronic service.
When Just Cause Is Also Required
Serving a 30- or 60-day notice is often necessary but not sufficient. For most California rentals, Civil Code 1946.2, enacted through the Tenant Protection Act of 2019 (AB 1482), also requires the landlord to state a legally recognized reason for ending the tenancy once a tenant has lived in the unit for 12 months or more.3California Legislative Information. California Civil Code 1946.2 The statute splits acceptable reasons into two categories.
At-Fault Reasons
At-fault reasons are tied to tenant conduct. They include failure to pay rent, breach of a material lease term after written notice and an opportunity to cure, nuisance or waste, criminal activity on the premises or criminal threats against the owner or an agent, unauthorized subletting or assignment, refusal to allow lawful entry for inspections or repairs, use of the property for illegal purposes, and refusal to sign a new lease with substantially similar terms after the prior written lease ended. For curable violations, the landlord must first give written notice of the problem and a chance to fix it before issuing a termination notice.3California Legislative Information. California Civil Code 1946.2
No-Fault Reasons
No-fault reasons have nothing to do with the tenant. They include the owner or a close family member intending to move in, withdrawal of the unit from the rental market, a government order requiring the tenant to vacate, and plans to substantially renovate. When a landlord ends a tenancy for a no-fault reason, the landlord must either pay the tenant one month’s rent as relocation assistance or waive the tenant’s final month of rent.3California Legislative Information. California Civil Code 1946.2 The termination notice itself has to state the just cause reason and inform the tenant of the right to relocation assistance.4California Courts. Types of Eviction Notices
Exempt Properties
Several categories of housing fall outside the just cause rules:
- Single-family homes and condos owned by a natural person, so long as the owner gave written notice of the exemption and the property is not held by a corporation, REIT, or LLC with a corporate member.
- Owner-occupied duplexes where the owner lived in one unit when the tenancy began.
- Properties with a certificate of occupancy issued within the last 15 years.
- Units where the tenant shares a kitchen or bathroom with the owner.
- Dormitories owned by schools or colleges.
- Deed-restricted affordable housing.5California Legislative Information. AB 1482 Tenant Protection Act of 2019
The single-family exemption only works if the owner delivered the required written notice to the tenant. Without that notice, the full just cause regime applies.
What a Landlord Cannot Do
Self-help eviction is barred in California. Even after the lease expires and even if the tenant has stopped paying, a landlord cannot change the locks, shut off utilities, remove doors or windows, or set the tenant’s belongings on the curb.6California Courts. Eviction Cases in California
Civil Code 789.3 attaches a specific price to those tactics. A landlord who cuts off water, electricity, gas, or other utilities, or who changes the locks or removes the tenant’s property to force a move-out, is liable for the tenant’s actual damages plus up to $100 per day for each day the violation continues, with a minimum award of $250 per violation, and the court will award attorney’s fees to the tenant. Repeated violations are treated as separate causes of action, so the penalties stack.7California Legislative Information. California Civil Code 789.3
If the Tenant Will Not Leave
When a valid notice period runs out and the tenant stays, the landlord’s only lawful route is an unlawful detainer lawsuit. Grounds include a tenant who holds over after the term without the landlord’s permission, a tenant who fails to pay rent after a three-day notice, a tenant who violates lease terms after a three-day notice to cure or quit, and a tenant who uses the premises for illegal purposes.8California Legislative Information. California Code of Civil Procedure 1161
Unlawful detainer moves faster than a typical civil case. Once the complaint is served, the tenant has five days (excluding weekends and court holidays) to respond. If the landlord prevails, the court can order the tenant to vacate and may award back rent, damages, and court costs. If the landlord fails to file proof of service of the summons within 60 days, the court can dismiss the case.9California Courts. What Happens If You Lose Your Eviction Case
Section 1945 keeps the tenancy alive after a lease expires; the notice statutes and the just cause rules decide how it eventually ends. A landlord who treats the holdover as a problem to solve by refusing rent and changing locks is reading only half the picture, and a tenant who assumes a lapsed lease strips away every tenant protection is reading the other half wrong.