California Civil Code 1945: Month-to-Month Renewal and Termination

California Civil Code 1945 governs what happens when a tenant stays in a rental after the lease term ends: if the landlord accepts rent from the holdover tenant, the law presumes the tenancy has been renewed on the same terms and for the same period as the original lease, capped at one month when rent is paid monthly and never more than one year in any case.¹ The renewal happens by operation of law. Nobody has to sign anything.

How the Automatic Renewal Works

The entire statute fits in one sentence. When a tenant remains in possession after the lease expires and the landlord accepts rent, the tenancy is presumed renewed on the same terms and for the same period. The two ceilings are the important part: renewal cannot exceed one month if rent is paid monthly, and cannot exceed one year in any circumstance.¹

For most residential tenants, that translates into a simple result. A one-year lease expires, the tenant stays, the landlord cashes the next rent check, and the tenancy continues as month-to-month with everything else the same. Rent amount, pet rules, parking arrangements, who pays for what — all of it carries forward. The lease didn’t disappear; it converted.

The trigger is the landlord’s acceptance of rent. Cashing the check, depositing it, or otherwise treating the payment as rent is what activates the presumption. A landlord who wants to avoid the automatic renewal cannot simply keep the money and later argue the tenant is a trespasser. Either the tenancy is being renewed or the rent should be refused.

What “Same Terms” Actually Carries Over

The renewed tenancy inherits the substantive obligations of the original lease. Rent stays where it was. Restrictions on subletting, guests, or use of the property continue. Rules about maintenance responsibilities remain in force. The main thing that shrinks is the term itself: instead of running for another full year, the tenancy runs month-to-month for a monthly-rent tenant.

This is why holdover tenancies matter for both sides. A tenant who assumes the old lease is dead may not realize they’re still bound by its terms. A landlord who assumes a new agreement is needed may not realize they already have one.

Ending a Month-to-Month Tenancy Created Under Section 1945

Once the tenancy has converted to month-to-month, either side can end it through written notice under Civil Code 1946.1. The required notice depends on how long the tenant has lived in the unit.

Less than one year in the unit: the landlord must give at least 30 days’ written notice before the termination date.²
One year or more in the unit: the landlord must give at least 60 days’ written notice.²

Tenants giving notice have to provide at least as much advance notice as the length of the rental period, which for a month-to-month tenancy means 30 days regardless of how long the tenant has lived there.²

One narrower window exists for owners selling a standalone unit like a single-family home or condo. If the owner has entered escrow with a buyer who intends to occupy the unit for at least a year, the landlord can use a 30-day notice even for a tenant who has been in place longer than a year. That option must be used within 120 days of establishing escrow and only once per tenancy.²

Delivery matters. Notices must go out personally, by substituted service with a mailing, or by certified or registered mail. A verbal heads-up doesn’t count, and neither does a text or email unless the lease specifically allows electronic service.

When Just Cause Is Also Required

Notice alone often isn’t enough. Under Civil Code 1946.2, part of the Tenant Protection Act of 2019, a landlord ending most tenancies has to state a legally recognized reason once the tenant has lived in the property for 12 months or more.³ The statute splits valid reasons into two categories.

At-Fault Just Cause

At-fault reasons are tied to something the tenant did:

Failure to pay rent
Breach of a material lease term after written notice and an opportunity to cure
Nuisance or waste on the property
Criminal activity on the premises or criminal threats against the owner or their agent
Unauthorized subletting or assignment
Refusing to allow lawful entry for inspections or repairs
Using the property for illegal purposes
Refusing to sign a new lease with substantially similar terms after the prior written lease expired³

For curable violations, the landlord has to give written notice of the problem and a chance to fix it before issuing a termination notice.³

No-Fault Just Cause

No-fault reasons have nothing to do with the tenant’s behavior. They include the owner or a close family member moving in, withdrawing the unit from the rental market, a government order requiring the tenant to vacate, and plans to substantially renovate the unit. For any no-fault termination, the landlord must either pay the tenant one month’s rent as relocation assistance or waive the tenant’s final month of rent.³ The termination notice itself has to state the just cause reason and inform the tenant of the right to relocation assistance.⁴

Properties Not Covered by Just Cause

Several categories of housing are exempt from these rules:

Single-family homes and condos owned by a natural person (not a corporation, REIT, or LLC with a corporate member), provided the landlord gave written notice of the exemption
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 housing⁵

The single-family home exemption has a paperwork condition attached. Without the specific written notice of exemption to the tenant, the property is subject to the full just cause requirements even though it would otherwise qualify.

What a Landlord Cannot Do to Push a Holdover Tenant Out

California draws a hard line against self-help evictions. A landlord cannot lock out the tenant, shut off utilities, remove doors or windows, or dispose of the tenant’s belongings to force a move.⁶ Even a tenant who hasn’t paid in months has to be removed through the court process.

Civil Code 789.3 puts real money behind that rule. A landlord who cuts off water, electricity, gas, or other services, or who changes the locks or removes a tenant’s property, is liable for the tenant’s actual damages plus a penalty of up to $100 per day for each day the violation continues, with a minimum award of $250 per violation. Attorney’s fees go to the tenant.⁷ Repeated violations count separately, so the numbers stack.

If a tenant refuses to leave after receiving a valid termination notice, the only legal path is an unlawful detainer lawsuit under Code of Civil Procedure 1161.⁸ The tenant has five days (excluding weekends and court holidays) to respond once served. A landlord who wins can get a possession order along with back rent, damages, and court costs.⁹

1
California Legislative Information. California Civil Code 1945
2
California Legislative Information. California Civil Code 1946.1
3
California Legislative Information. California Civil Code 1946.2
4
California Courts. Types of Eviction Notices
5
California Legislative Information. AB 1482 Tenant Protection Act of 2019
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California Courts. Eviction Cases in California
7
California Legislative Information. California Civil Code 789.3
8
California Legislative Information. California Code of Civil Procedure 1161
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California Courts. What Happens If You Lose Your Eviction Case