Glossary
Leasing

Security deposit

Money held to secure defined rental obligations, subject to jurisdiction-specific custody, deduction, accounting, and return rules.
A security deposit is money held to secure obligations identified by the lease and applicable law. It is different from a current rent payment, a nonrefundable fee, advance rent, or unrestricted operating cash, even when all of those amounts are collected near move-in.
The governing jurisdiction can regulate the amount, permitted uses, account or notice requirements, interest, transfer on sale, documentation, deductions, itemization, and return timing. California, Texas, and North Carolina statutes illustrate materially different structures; none supplies a national rule.
Tax treatment also depends on the arrangement. The IRS distinguishes a deposit intended to be returned from an amount designated as final rent or applied to rent. Preserve the lease language, receipt, account record, transfer history, move-in baseline, move-out evidence, invoices, itemization, tenant communication, and refund or retention record.
Do not treat the account balance as automatically available cash or decide a deduction from a generic checklist. Confirm the current state and local rules, property or program coverage, lease, condition evidence, ordinary-wear boundary, and deadline before releasing funds or posting a retained amount.

Deposit, advance rent, and fee are different classifications

The label on a payment is not enough. Ask whether the amount is intended to be returned, applied to a future rent period, earned for a separately permitted service, or held against a defined obligation. The answer affects custody, ledger presentation, tenant communication, and possible tax treatment.
Keep the tenant subledger and bank custody record connected without treating them as the same thing. A transfer between bank accounts does not earn the deposit, and a ledger deduction does not prove that local law permits retention.

Move-out evidence and reconciliation

Reconcile the opening deposit, lawful transfers, interest if applicable, authorized deductions, refunds, and remaining balance. Tie condition deductions to the move-in baseline, dated move-out observations, scope, invoice or reasonable support, and the rule reviewed.
Preserve the original balance and each adjustment. A correction should use a linked reversal or additional refund rather than deleting history. This makes the tenant statement, bank movement, and accounting record explain the same result.
This is general educational information, not legal or tax advice. Rules vary by state and locality and change over time — check your local law and confirm specifics with a qualified professional.
Editorial ownership
Written and maintained by the Aptoria editorial team
Editorial method reviewed July 28, 2026. Aptoria reviews scope, source fit, examples, limitations, links, and publication gates. This record does not claim attorney, CPA, lender, appraiser, or other independent professional sign-off.
Professional review is not claimed. Verify current law, tax treatment, loan terms, valuation inputs, and property-specific facts with the appropriate qualified professional before acting.

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