How to Divide Security Deposit Deductions With Roommates

You just got the itemized deduction letter from the landlord. $340 held for a hole in the wall (not yours), $180 for a stained carpet (also not yours), and $95 for cleaning (fair, everyone’s fault). Now you’re all supposed to just eat 1/3 of the $615 hit? Figuring out how to divide security deposit deductions with roommates is the last money fight of a shared lease, and the fairness rule is simpler than most people think — but you have to name it out loud or it turns into three people passive-aggressively Venmoing rounded numbers.

Snippet-ready answer: damages caused by one person come out of that person’s share. General cleaning, wear-and-tear, and communal damage are split evenly. Anything else — a specific room’s damage, one person’s pet, one person’s guest breaking something — belongs to the person responsible.

How do you actually split security deposit deductions fairly?

Sort every line item on the deduction letter into one of three buckets:

• Personal: damage in a single person’s bedroom, damage they caused elsewhere, damage from their pet, damage from their guest. Full cost to that person.
• Shared: general cleaning fee, carpet cleaning in common areas, unpaid utility passthroughs, trash removal, unreturned keys nobody claims. Split evenly.
• Contested: damage nobody will admit to. Default to even split unless one person volunteers.

Do the math on each bucket, then subtract from each person’s original deposit contribution. The refund each roommate gets is what’s left. This is boring math but it prevents the “why am I paying for your dog’s scratched door” fight.

Who pays for damage in a shared common area?

Split evenly by default. Exceptions:

• Party damage — if the party was one person’s event, they eat the bill.
• Guest damage — the roommate who invited the guest pays.
• Pet damage — the pet owner pays, full stop. Not evenly.
• Neglect damage — mold from a shower nobody cleaned, ant infestation from unwashed dishes — technically shared, but if one person was the primary contributor, most groups compromise on 50/50 between “everyone” and “the main offender.”

If your lease had one person as primary leaseholder and everyone else as occupants, the primary leaseholder still doesn’t automatically eat everything — they just have the legal exposure. Internal fairness is between roommates.

For the split at the start of the lease, our post on how to split security deposit with roommates covers the move-in side.

What if a roommate refuses to pay their share of a deduction?

Common at move-out because everyone’s already scattered. What actually works:

1. Send the itemized landlord letter to the group with the math already broken down. Don’t ask them to trust you — show them the receipts.
2. Give a deadline. Two weeks is standard. “I’ll cover your share upfront and expect Venmo by [date]” only works if you’re willing to eat it if they ghost.
3. Withhold their portion of the refund. If the deposit refund is coming to one person’s account, that person can distribute after deductions are paid. This is the cleanest way — you never have to chase money.
4. Small claims court for anything over $500 they refuse to pay. Bring the lease, the itemized letter, texts, and the math. Filing fee is $30–$75 depending on state.

For late-payment situations that come up mid-lease, our guide on what to do when your roommate pays rent late has adjacent scripts.

Should you document damage before move-out?

Yes. Do a walkthrough with all roommates in the last week of the lease. Take dated photos of every room, every wall, every appliance. Send the album to the group chat. This gives you evidence of who owns what damage before the landlord decides for you.

Also: request the itemized deduction letter in writing. Most states require landlords to itemize within 14–30 days (varies by state). If they just quote a total, ask for the breakdown before you agree to any split — vague deductions are how landlords keep more than they should.

A pre-move-out roommate meeting where you divide anticipated deductions in writing prevents 90% of these fights. Our roommate agreement guide includes a move-out clause template.

How homies handles this

homies tracks every shared expense across the lease so at move-out you already have a running record of who paid what, who caused what damage (photos and receipts logged in real time), and who owes what — no scrambling through group chat history to reconstruct a year of shared costs. The final settlement gets calculated automatically. rooming, minus the drama. Join the waitlist at joinhomies.app.