Lease Acceleration Clause
in Your Lease
What it actually means, what California law says, what's specific to Los Angeles - and exactly what to do. In plain English.
Quick Summary - What You Need to Know
- A demand for every remaining month on move-out day is generally unenforceable under Section 1951.2.
- Section 1951.2 values unpaid future rent at the time of award, minus loss you prove was avoidable.
- The proof is on you. California makes the tenant show what rental loss could reasonably have been avoided.
- If your lease permits subletting, Section 1951.4 may let your landlord keep the lease alive and bill monthly.
- Our record of Los Angeles law shows no city rule on rent acceleration.
Understanding the Lease Acceleration Clause
This page is for Los Angeles renters whose lease has an acceleration clause: the paragraph that makes all the remaining rent due at once if you break the lease. It often sits under a heading about default or remedies.
In California the clause sets the opening demand, but state law sets what a landlord can recover. That figure depends on how much rental loss could reasonably have been avoided after you left, and on the evidence you bring to show it.
What renters assume
California is tenant-friendly, so my landlord will have to prove they tried to re-rent before charging me for the rest of the lease.
What is actually true
Not in California. Under Section 1951.2 the tenant proves what rental loss could reasonably have been avoided. Nobody builds that argument for you, so the listing screenshots and dates you collect become your evidence.
Same clause, very different law behind it. Texas and New York make the mitigation duty non-waivable and aim it at the landlord, Florida lets an owner sit on an empty unit and bill you as rent comes due, and California lands in between - the reduction is real, but you have to prove it.
Rent Acceleration Clause Example - What the Wording Looks Like in Los Angeles, CA
The sample clause below is real lease language - a court quoted it word for word, and then ruled on it. What the judge decided is at the bottom of this block.
Find the equivalent paragraph in your own lease and read the two side by side. The wording will differ; the moving parts rarely do.
This is the acceleration paragraph as it appears in the published opinion. The original carries one more sentence after the passage below, about late fees and interest on accelerated sums, which is left out here:
If any monthly installment under this agreement is not paid when due and remains unpaid after a date specified by a notice to Tenant, the entire principal rent amount owed for the full lease term shall at once become due and payable at the option of the Landlord and judgment may be had for all said amounts due. The foregoing provision shall not relieve the Landlord of its obligation to mitigate damages. In the event the rental premises is re-rented to another for full value prior to expiration of the lease term, Landlord shall file Notice of Partial Satisfaction of any judgment entered to the extent of the third party rental agreement.
[…]
Quoted from the published opinion in Summers v. Crestview Apartments, 2010 MT 164, 357 Mont. 123, 236 P.3d 586 (No. DA 09-0489). Judicial opinions are not subject to copyright; the lease language is reproduced in limited part for commentary under 17 U.S.C. § 107.
What the 4 highlighted phrases mean
“is not paid when due”
One missed payment is all this paragraph needs. California does not stop a landlord from treating it that way, but it refuses to let the missed payment become the measuring date. Under Civ. Code § 1951.2 the number is the worth at the time of award of the unpaid future rent - a figure computed later, by a court, on what actually happened to the unit in the meantime. Whatever the landlord's ledger says the day after the default is a starting point, not an award.
“owed for the full lease term”
The full term is exactly what § 1951.4 allows a landlord to collect - by a completely different mechanism from the one in this paragraph. That section lets a landlord keep the lease alive and take the rent as it comes due, month by month, and it is available only where the lease permits the tenant to sublet or assign. So the lawful route to the whole term in California runs through your right to hand the unit on. A clause demanding the whole term at once while restricting subletting is asking for the money without the condition attached to it.
See the example
“shall at once become due and payable”
This is the phrase that does not survive the trip to California. Because § 1951.2 fixes damages at the worth at the time of award, a clause converting the balance of the term into a debt payable on the day of default is generally unenforceable: it collects in advance a loss nobody has measured yet, and it collects it whether or not the unit sat empty. The Montana court above arrived at unenforceability by a different route, holding this very provision unconscionable.
“for all said amounts due”
This is the sentence that sets up a judgment for the whole sum, and California's answer to it puts a burden of proof on you. Section 1951.2 lets a landlord recover the unpaid future rent minus whatever rental loss the tenant proves could reasonably have been avoided, so the offset is real and it is yours to establish. Contrast New York, where Real Prop. Law § 227-e puts the burden of proof on the party seeking to recover the damages. Same duty, opposite starting position.
See the example
The Montana Supreme Court struck this paragraph down, and its conclusion is one sentence: “Thus, we conclude that the accelerated rent provision is unconscionable and therefore unenforceable.” The tenants had moved out of their apartment on October 13, 2006, and Crestview answered with a Statement of Deductions from the Security Deposit charging rent through the end of the lease in June - $6,505.75 billed against a $2,170 deposit. Two reasons carried the court. Acceleration undermines the landlord's duty to mitigate and reduces the incentive to re-rent promptly, because a landlord already holding a judgment for the whole term has little reason to fill the unit. And Crestview drafted the lease while these tenants had no meaningful choice and no opportunity to negotiate any of it. The case was reversed and remanded, and two justices wrote separately - their objection being that the majority had gone as far as treating acceleration clauses as unenforceable in themselves. So read the holding narrowly, as the majority wrote it: this provision, in this residential lease, unconscionable and unenforceable. It is a Montana decision and it binds no other state's courts. What travels is the reasoning, and the reasoning is about mitigation - which is exactly the question the statute in your own city's decode answers.
How this state's law treats this clause
One court, one lease, one state. That answer is not automatically yours, and your lease may be worded to land differently. Use this to know what to look for and what to ask - your state's tenant hotline or a local tenant attorney can answer it for your document.
California Law on Lease Acceleration Clause
- Section 1951.2 lets a landlord recover the worth at time of award of unpaid future rent, minus losses the tenant proves were avoidable.
- The tenant carries the burden of proving what rental loss could reasonably have been avoided.
- Section 1951.4 is the exception: a landlord may keep the lease alive and collect rent as it comes due if the lease permits subletting or assignment.
- Because damages are measured at the time of award, a clause demanding all remaining rent immediately is generally unenforceable.
Sources include Cal. Civ. Code § 1951.2 - statutes change; verify the current text for your situation.
Step by step
How it plays out
- You leave earlyClause demands all remaining rentAn acceleration clause can make every remaining month due at once. In California a lump-sum demand on move-out day is generally unenforceable.
- Court rulesClaim valued at award timeSection 1951.2 values unpaid future rent as its worth at the time of award, not on the day you hand back keys.
- You show lossAvoidable rental loss comes offRental loss you prove could reasonably have been avoided is subtracted. The tenant carries that burden of proof.
Copy and send: When your landlord bills you for the rest of the lease after you moved out
Ask how the unit was re-rented
Fill in the brackets and keep a copy of what you send.
In California the rule is Cal. Civ. Code § 1951.2. Your lease sets the demand; this section sets what your landlord can recover.
- Valued at award. Your landlord may recover the worth at the time of award of unpaid future rent. The number is fixed when a court rules, not the week you hand back keys. Because of that timing, a clause demanding all remaining rent at once is generally unenforceable.
- Minus avoidable loss. Any rental loss you prove could reasonably have been avoided comes off the total, so months the unit could have been re-rented are not yours to pay.
- You carry the proof. The burden is on the tenant, not the landlord.
- The sublet exception. Under Section 1951.4, if your lease permits subletting or assignment, your landlord may keep the lease alive and collect rent as it comes due instead of suing for damages.
An acceleration demand is a claim your landlord has to establish. You can dispute the figure and ask how it was calculated.
What's Specific to Los Angeles
How California compares
Landlord duty to mitigate after an early lease break, state by state
No figureGuide coming soonYou are here
See all 25 cities as a chart
Figures are the state rule, or the stronger city ordinance where one exists. Verify the current law for your own situation before relying on it.
Our record of Los Angeles law shows no city rule on rent acceleration. In that record, the Rent Stabilization Ordinance and the Just Cause Ordinance cover when a landlord can push you out, rent increases and relocation money, and do not reach what you owe for leaving early.
That leaves Section 1951.2, which applies in Los Angeles unchanged, and the lease you signed as the documents that answer the question.
It should say so. California already subtracts avoidable loss, but a written credit saves you proving it from scratch.
It helps you replace yourself, but under Section 1951.4 it may also let your landlord keep the lease alive and bill monthly.
Damages are measured at the time of award, so a lump-sum demand on move-out day is generally unenforceable.
Paying a release fee and every remaining month bills you twice for one empty apartment. Question it in writing.
Sources
The law this guide relies on, and where to read it. Statutes change, so confirm the current text before you act on it.
- Cal. Civ. Code § 1951.2 on leginfo.legislature.ca.gov, California's own publication of its statutes.
Red Flags to Watch Out For
-
Entire balance due on demand
Wording that makes all remaining rent payable the day you leave is an opening number, not a judgment. California values the claim at the time of award.
-
Waiver of your mitigation defense
Language saying you give up any claim the unit could have been re-rented. Section 1951.2 builds that reduction into the damages. Show the clause to a lawyer.
-
Rent billed after the unit re-rented
Rent a new tenant pays is loss that was avoided and should come off. Check the new tenant's start date and rent against your bill.
-
Sole discretion to re-rent
A clause saying the landlord may decide whether to market the unit at all. With a sublet clause and Section 1951.4, monthly billing can keep running.
-
No accounting of the re-lease
If the lease never promises an itemized statement, you may never learn how fast the unit filled. Ask for the re-lease date and new rent in writing.
Your Rights as a Los Angeles Tenant
-
Damages valued at award
Section 1951.2 measures unpaid future rent as its worth at the time of award, not as a lump sum billed on move-out day.
-
Credit for avoidable rental loss
Loss you prove could reasonably have been avoided comes off the total, so a month the unit was re-rented is a month you should not pay.
-
Make them prove the number
An acceleration demand is a claim, not a judgment. If you dispute it, your landlord has to establish the damages rather than just invoice them.
-
Evidence you gather yourself
Because you carry the burden, listing screenshots, rental comps and replacement tenants you found are what move the number.
What To Do - Step by Step
Find the acceleration paragraph
Search the lease for 'accelerate', 'entire balance' or 'reletting'. That text sets the demand; Section 1951.2 sets what your landlord can recover.
Check for a sublet clause
If subletting or assignment is permitted, Section 1951.4 may let your landlord keep the lease alive and bill you monthly. Know that before you leave.
Give written notice, keep proof
Send an email and a certified letter with your move-out date. Dated proof shows when your landlord knew the unit was empty.
Hand back a rent-ready unit
Return the keys formally and photograph every room. A clean unit removes the easiest excuse for a slow re-lease.
Track the listing weekly
Screenshot the manager's site, Zillow and Apartments.com. Because you carry the burden here, that folder is your evidence.
Ask for the numbers, then get free help
Ask in writing for the re-lease date and new rent. LA County legal aid clinics counsel renters at no cost before you agree to any figure.
Why renters trust LeaseDecoded
Frequently Asked Questions
Lease Acceleration rules near California
The same clause in the nearest states we cover.
Was this guide helpful?Your answer is anonymous and helps us fix what is unclear.