Roommate Agreement California: What to Put in Writing (2026)

✓ Law Verified September 29, 2026

roommate agreement california renters use is a written deal between people who share a rental home. It covers who pays what, who gets which room, and what happens when someone moves out. Your lease is with the landlord. However, the lease usually says nothing about how roommates split costs. A roommate agreement california tenants sign together fills that gap. As a result, if a roommate stops paying or leaves early, you have proof of what everyone promised.

The short answer: Write down each person’s rent share, deposit share, utilities, guest rules, and move-out notice. Every roommate signs the same final copy and keeps one. A roommate agreement california courts can read does not change your lease with the landlord. However, it gives you written proof to show a small claims judge if a roommate breaks the deal.

When and Why to Use a Roommate Agreement California

Use one any time two or more adults share a unit. It matters most when only one person signed the lease. In that case, that person is often called the master tenant. The others may be subtenants. The best time to write a roommate agreement california renters rely on is before move-in day. For example, sign it the same week you sign the lease.

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Most California leases make every signer jointly and severally liable. Cornell explains joint and several liability in plain terms. It means the landlord can collect the full rent from any one of you. As a result, if your roommate skips out, you may owe their share too. A roommate agreement california tenants sign lets you go after that roommate to get your money back.

Your status also matters. If you rent a room inside the owner’s own home, you may be a lodger under California Civil Code 1946.5. Lodgers have fewer protections than tenants. In most cases, a written agreement helps show whether you are a tenant, a subtenant, or a lodger.

What to Include in a Roommate Agreement California (and What to Leave Out)

Keep it clear and specific. Vague promises are hard to prove later. Typically, a strong roommate agreement california tenants use covers these items:

  • Everyone’s full name, the address, and the lease dates
  • The exact dollar amount each person pays and the due date
  • Who pays the landlord, and how the others pay that person
  • Each person’s share of the security deposit
  • How utilities, internet, and streaming bills get split
  • Who gets which bedroom, parking spot, and storage space
  • Guest limits, quiet hours, chores, pets, and smoking
  • How much notice a roommate must give before moving out
  • How you will handle disagreements

Leave out anything that breaks your lease or the law. For example, you cannot agree to move someone in if your lease requires landlord consent first. Also skip any rule that treats people differently because of race, religion, disability, or another protected trait. In most cases, a roommate agreement california tenants sign cannot override the lease or state tenant protections.

The deposit is where most roommate fights start. California caps most deposits at one month’s rent under Civil Code 1950.5. Some small landlords may charge two months. A roommate agreement california tenants write should say how the refund gets split. Deadlines and court limits differ by state, as this table shows.

State Landlord must return deposit within Small claims limit (individuals)
California 21 days $12,500
New York 14 days $10,000 (NYC)
Texas 30 days $20,000 (justice court)
Florida 15 days (30 days if landlord claims deductions) $8,000
Washington 30 days $10,000

Sample Template You Can Adapt

This roommate agreement california sample is a starting point. Copy it, fill in the brackets, and make sure it matches your real lease.

Sample template – adapt to your state and your situation. This is an informational sample, not legal advice.

ROOMMATE AGREEMENT
Property address: [Full Address, City, CA ZIP]
Lease dates: [Lease Start Date] to [Lease End Date]
Landlord: [Landlord Name]
Roommates: [Roommate 1 Name], [Roommate 2 Name], [Roommate 3 Name]

1. Rent. Total monthly rent is $[Total Rent]. [Roommate 1 Name] pays $[Amount] for [Room Description]. [Roommate 2 Name] pays $[Amount] for [Room Description]. Each roommate pays their share to [Name of Person Who Pays Landlord] by the [Day] of each month. That person pays the landlord by [Lease Due Date].

2. Security deposit. The total deposit is $[Deposit Amount]. Each roommate paid $[Amount]. Deductions for damage come out of the share of the roommate who caused it. The rest is split [Split Method].

3. Utilities. [Utility Name] is in the name of [Name]. Bills are split [Equally / By Percentage]. Each roommate pays within [Number] days of getting the bill.

4. Rooms and shared spaces. [Roommate Name] uses [Room/Parking/Storage]. Shared spaces are [List of Shared Spaces].

5. Guests. Overnight guests may stay no more than [Number] nights per month without all roommates’ written okay. Guests must follow the lease.

6. House rules. Quiet hours: [Time] to [Time]. Chores: [Chore Plan]. Pets: [Pet Rule]. Smoking: [Smoking Rule].

7. Moving out. A roommate who wants to leave gives at least [Number] days’ written notice. They keep paying their share until [Notice Period Ends / A Replacement Approved by the Landlord Moves In].

8. Disputes. We will talk first. If that fails, we will try [Mediation Service]. If that fails, any of us may file in small claims court.

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9. Lease comes first. This agreement does not change our lease. If the two conflict, the lease controls.

[Roommate 1 Name] Signature: ____________ Date: [Date]
[Roommate 2 Name] Signature: ____________ Date: [Date]
[Roommate 3 Name] Signature: ____________ Date: [Date]

How to Send It So It Counts

Every roommate should sign and date the same final version. Then give each person a full copy. For example, email a signed PDF to everyone so there is a time-stamped record. Keep your roommate agreement california copy with your lease and rent receipts.

When you give notice under the agreement, do it in writing. For example, send a move-out notice by certified mail with return receipt. Text a photo of it too. Save payment records like Venmo or Zelle screenshots. As a result, you can prove who paid what if a dispute reaches California small claims court.

Should the landlord get a copy? Typically, no. However, if you are adding a new roommate, get the landlord’s written consent first. A roommate agreement california renters sign privately does not bind the landlord.

Deposit deadline: Under California Civil Code 1950.5, the landlord has 21 days after the household moves out to return the deposit or send an itemized statement. If one roommate leaves early, the landlord usually does not refund that share then. Settle that between roommates in writing.

If a roommate dispute turns into an eviction case, act fast. In California, you typically have only 10 court days to respond to an eviction lawsuit. Your roommate agreement california records, texts, and receipts can help. Contact a local legal-aid office through LawHelpCA or a tenant attorney right away.

Frequently Asked Questions

Is a roommate agreement california tenants sign legally binding?

In most cases, yes, between the roommates who sign it. It works like a contract. If a roommate breaks it, you may be able to sue in small claims court for up to $12,500. It does not bind the landlord.

Can I evict a roommate in California?

It depends on your status. A subtenant usually gets written notice and a court eviction process. A lodger in an owner-occupied home has fewer protections. A written roommate agreement california renters sign helps show which one applies. Check with legal aid first, and never change the locks or remove belongings.

What if my roommate moves out early?

Your roommate agreement california terms should say how much notice they owe. It should also say who covers rent until a replacement moves in. Without that, you may still owe the landlord the full rent. Ask for payment in writing first, and keep records.

Bottom line: A roommate agreement california renters sign before move-in can save money and stress later. Put rent, deposit, bills, and move-out rules in writing, and keep signed copies. If things turn serious, contact a local legal-aid office early.

Protect your stuff while you sort this out

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Find Your State’s Exact Rules

Notice periods, deposit caps, and the eviction timeline all change from state to state. Pick your state to see the exact days, dollar limits, and steps that apply where you live.

See Tenant Rights in All 50 States →

Sources & How to Verify

The rules on this page are drawn from official government and legal-aid sources. Tenant law changes, so always confirm the exact rule with your state’s statute or a local legal-aid office.

  • HUD: hud.gov — federal renter protections and fair housing
  • Legal Services Corporation: lsc.gov — find free legal aid in your state
  • Cornell Legal Information Institute: law.cornell.edu/wex — plain-English legal definitions
  • Your state statute & court self-help portal: search “[your state] landlord tenant act” and “[your state] court self-help eviction” for the exact law and forms

Content last reviewed September 2026. If you notice outdated information, please contact us.

California Renter Guides

Related Guides

Renting? Protect your belongings — compare renters insurance at Home Insure Guide. Divorce involving a lease? See Divorce Help Guide. Unsafe housing / toxic mold injury? Some cases qualify — see Mass Tort Info.