It is the 31st, 4:10 PM. The resident in 3B has handed back two keys and a fob, the walkthrough found one cracked tile, and the lease says you took an $1,800 deposit four years ago. Somewhere between then and now, the money stopped being a specific thing. It went into the operating account with that month's rent, and it has been part of the balance ever since.
Nothing about that felt wrong at the time. A deposit arrives the way rent arrives, by the same transfer, into the same account, and it got recorded the way rent gets recorded. For four years it made the account look a little healthier than the business was. In a good month nobody notices an extra $1,800. In a tight one, it is the difference between covering the roofer and not, and it gets spent without anyone deciding to spend it.
Multiply it by the building. A forty-unit property holds forty deposits, and the total is a sum that belongs to other people, sitting in a balance that reads as yours. The books rarely say so. The deposit went in as a receipt, it was never labeled as owed, and the total you owe residents exists nowhere except as a figure you would have to assemble lease by lease, if anyone asked.
Then someone asks. Move-out is the day the deposit turns back into a specific thing, and the refund comes out of the operating account, which means it comes out of this month's rent. On the owner's statement it reads as a cost: $1,800 out, in a month that had nothing to do with it, for money the building never earned. The owner does not see a liability being settled. The owner sees an expense that is not on the budget.
And when the former resident disputes the $180, the record you need is an itemized one: this deposit, this deduction, this reason, this refund. What the books hold is a lump, and the lump is four years old.
A deposit is not money you have. It is money you owe, with a due date you do not control.
Handled differently, the deposit is a debt from the day it arrives. It gets its own account on the liability side, the balance of that account is the total you owe residents, and a refund is that debt being paid, not a cost. The one moment a deposit becomes yours is the deduction, and it becomes yours itemized, with the reason on the entry and the same number on the statement the resident receives.
What that buys is not tidier books. It is an operating balance that means what it says, an owner statement with no phantom expense in move-out month, a refund that was never in doubt because the money was never counted as yours, and one number, readable on any day, for what you are holding on other people's behalf.
Scaalr records the deposit twice on purpose: on the lease, as a typed term that follows the tenancy through renewal, and in the ledger, through prebuilt entry templates for the full refund, the partial refund with deductions, and the rent deposit applied to the last month, each posting a balanced entry against Security deposits held. The entries, the move-out procedure, and the two mistakes to avoid are in Security Deposit Accounting for Property Managers.
For the full breakdown of a deposit's life in the books, from collection to refund, see: Security Deposit Accounting for Property Managers.
The first 5 units are free, then $0.99 a unit a month, and the deposit templates are on every plan.