Can I sue my roommate over the security deposit?
Yes. Three common patterns: unfair allocation, kept refund, and damage caused by them. Roommate security-deposit disputes usually come up at the end of the lease. The landlord refunds the deposit to one tenant or sends a single check to the unit; that tenant is supposed to forward each roommate's share. When they don't (or when one roommate caused damage that reduced the refund), the case lands in small claims. Bank records showing what you originally paid in, plus the move-out walkthrough, are the case.
What kinds of deposit disputes can you sue for?
Three common patterns.
How much can you recover?
Your unpaid share of the deposit plus filing fees.
Illustrative ranges based on statute. Your actual recovery depends on facts, evidence, and the judge.
Your share of the deposit
What you originally paid in plus your fair share of any refund. Bank record from move-in showing your contribution.
Interest before the case is decided
State legal rate (7 to 10 percent per year) running from the date the landlord refunded.
Filing fees, interest after judgment
Filing fee, service-of-process cost, interest that keeps running until they pay.
$1,500 share kept by ex-roommate plus interest, plus filing fee.
Send a demand letter first.
Demand letters work especially well for deposit disputes because the documentation is usually clean.
Send a Demand Letter.
- Bank record from move-in showing what you paid in
- Lease showing both names
- Landlord's refund record or itemization
- Move-out walkthrough notes
- A 14-day deadline
- Sent certified mail to forwarding address
1424 Forwarding Address, Phoenix, AZ 85003
On 09/01/2024, we both moved into 5500 Industrial Way under a joint lease with a $3,000 security deposit. I contributed $1,500 (bank record attached). On 04/30/2026, the landlord refunded the deposit in full ($3,000) to your address. You did not forward my $1,500 share.
I demand within fourteen (14) days:
- Refund of $1,500 in my deposit share;
- Interest at 10 percent per year ($100).
“The letter alone got them to settle in under two weeks.”
How to file a deposit case.
Four steps. Documentation of your share is the case.
Bank record from move-in showing your deposit contribution. Lease with both names. Roommate agreement specifying deposit allocation.
Get the landlord's refund record or itemization. The landlord usually sends a single check to one tenant or to the property address.
Use the roommate's forwarding address. Most pay at this stage to close the matter.
Lead with the bank record, the lease, the refund record, and the demand letter. Hearings usually run 10 to 15 minutes.
What evidence do you need for a deposit case?
Bank record + lease + refund record establish the case.
Common roommate defenses, with rebuttals.
Three arguments cover most deposit cases.
Keep it simple. Organized records, clear timelines, and solid evidence are your best defense.
How much do tenants actually recover?
Most cases recover the full owed share.
Security Deposit rules, by state.
Top 10 states by case volume, highlighted in red. Each row shows that state's deadline to sue and statutory penalty for this claim.
What if your case is over your state’s cap?
Small claims caps vary state to state. If your claim is larger, you have two options.
Stay in small claims and forfeit anything above your state's cap. Fast, cheap, no lawyer. Most plaintiffs in this situation pick this.
Pursue the full amount in regular civil court. Slower, costlier, lawyer recommended.
What are the alternatives to small claims?
Demand letter is the lowest-friction path.
When it fits: documented split. Most roommates pay at this stage.
Tradeoff: no way to enforce it if they ignore you.
When it fits: the landlord can often resolve disputes by allocating deductions clearly. Some landlords issue separate refund checks if asked.
Tradeoff: landlord may decline to get involved.
When it fits: demand failed. Damages within state cap.
Tradeoff: 30 to 90 day timeline.
Recover your deposit share.
Demand letters with bank records and refund documentation produce settlement in most cases.
Illustrative. Larger deposits push higher.
This page is general legal information about roommate disputes, not legal advice. CivilCase is not a law firm and does not represent you. Consult a licensed attorney in your state for advice about your specific situation.
Security Deposit questions.
The questions roommates actually ask before filing.
Can I sue my roommate for keeping my deposit share?
Yes. Whoever receives the deposit refund is legally responsible for handing over each roommate's share. Keeping the whole refund instead of forwarding your share counts as taking your money (the legal name is 'conversion'). Bank records showing your contribution and the landlord's refund record are the case.
What if the deposit was reduced by deductions?
Landlord deductions for damage usually come off the total before splitting. If one roommate caused specific damage, that deduction comes out of their share; any remaining damage is split based on who paid in what originally. Move-out walkthrough shows who caused what.
What if the landlord sent the refund to the wrong tenant?
Most landlords send to one tenant or to the property address. The tenant who receives the check is legally required to forward each roommate's share. Not forwarding = taking your money.
Should I ask the landlord to send separate checks?
At lease signing or before move-out, yes. Many landlords will issue separate checks if all tenants ask and provide forwarding addresses. This avoids the keep-the-deposit problem entirely.
How long do I have to sue?
The deadline (the 'statute of limitations') is usually 2 to 4 years from the date the refund was received. Some states' security-deposit laws have shorter windows. File promptly after the refund deadline passes.
What if my roommate disputes the move-out condition?
The landlord's deductions (if any) are the official record. Your roommate's separate claims about move-out condition rarely succeed without the landlord backing them.
Can I include this with other roommate claims?
Yes. One small-claims case can include unpaid rent + unpaid bills + property damage + deposit. Combine to avoid multiple court appearances.