Security deposit

What it means

A security deposit is money a tenant hands over before move-in that you hold, do not spend, and return after they leave — less whatever they legitimately owe you.

The word "hold" is doing the work. A deposit is not prepaid rent and it is not yours. In most states it remains the tenant's money for the whole tenancy; you are its custodian, with a statutory obligation to give it back on a deadline and a written account of anything you kept. A handful of states go further and require it to sit in a separate account, sometimes an interest-bearing one.

What it can be used for is narrower than most first-time landlords assume. The standard list is unpaid rent, damage beyond normal wear and tear, cleaning to return the unit to its move-in condition, and unpaid charges the lease explicitly allows. What it cannot be used for is repainting on a schedule, replacing a carpet that simply aged out, or fixing something that was already worn when the tenant arrived.

The amount you may collect is capped by state law, usually at one or two months' rent, sometimes with a lower cap for furnished units or an outright ban on charging more for a pet. Anything collected above the cap is recoverable by the tenant, frequently with a penalty attached.

Why it matters

Deposits are the most litigated thing in small-landlord tenancies, and the penalties are lopsided by design.

Most deposit statutes carry a return deadline — commonly 14 to 30 days after possession ends — and a damages provision if you miss it. Two or three times the deposit is a common multiplier, and several states apply it whether or not your deductions were fair. On the canonical $2,400-a-month unit that turns a $2,400 deposit into a $7,200 judgment over a calendar mistake.

The second exposure is the accounting. If a deposit sits in your operating account alongside rent, then by year end you have quietly spent money that belongs to someone else, and you have no defensible record of what was held for whom. In states with trust-account rules that is a statutory violation on its own; everywhere else it is simply a bill that arrives at the worst possible moment, during a turnover when you are also paying for paint.

Both risks are administrative, not judgmental. Landlords rarely lose deposit cases because their deductions were unreasonable. They lose because the deadline passed, the itemization was never sent, or the move-in condition was never documented.

How it works in practice

Take the canonical unit: $2,400 a month, a one-month deposit of $2,400 collected at signing.

Four things happen in order.

At move-in, the deposit is recorded as a liability, not income. It never appears as revenue on Schedule E, because it is not yours. A move-in inspection with dated photographs is completed and signed by both parties — this is the document that decides every later dispute.

During the tenancy, it sits untouched. You do not apply it to a late month, even at the tenant's request, unless your state and lease allow it; doing so leaves the rest of the term unsecured.

At move-out, the move-out inspection is compared against the move-in record, and only differences beyond normal wear are chargeable.

Deposit accounting	Amount
Deposit held	2,400.00
Unpaid final-month rent	(640.00)
Repair — damaged interior door	(185.00)
Cleaning beyond move-in condition	(220.00)
Returned to tenant	1,355.00

Within the statutory window, the $1,355 goes out with a written itemization listing each deduction, plus receipts where the statute requires them. Send it to the tenant's forwarding address by a method that produces proof of mailing.

Common mistakes

• Treating it as income. A deposit is a liability on your books until it is either returned or applied. Recording it as rent overstates your income and loses track of what you owe back.
• Missing the deadline. The clock usually starts when possession ends, not when you get around to inspecting. Diary it on the day the keys come back.
• Charging for age. A carpet at the end of its useful life is your cost, not the tenant's. Apportion the item and charge only the remaining value, if any.
• No move-in record. With nothing to compare against, "it was already like that" wins. Photograph everything before the tenant takes possession.
• Commingling. Mixing deposits with operating cash is a violation in trust-account states and a cash-flow trap everywhere else.
• Charging a pet deposit above the cap. Several states count pet deposits toward the same ceiling, so a $2,400 deposit plus a $500 pet deposit can quietly exceed a one-month limit.

How BareBones PM helps

BareBones PM holds a deposit as its own balance on the lease, separate from the rent ledger, so the amount you are holding for each tenant is always a number you can look at rather than one you reconstruct from bank statements.

Move-in and move-out documentation attaches to the lease itself — photos, the signed condition report, and any receipts you later rely on — so the evidence lives with the tenancy that produced it instead of in a phone gallery.

At move-out, deductions are entered as line items against the held balance, the return figure is computed rather than estimated, and the itemization is produced from those lines. The statutory deadline is tracked from the possession date, which is the one date that actually matters.

For the full walkthrough including state deadline variation, see Security deposits done properly.