A security deposit trust account is a bank account that holds tenants' deposits apart from the landlord's own money until each deposit is returned or lawfully applied. Running one means a ledger per tenant, interest handled under your state's rule, deductions documented at move-out, and a monthly reconciliation proving the bank holds every deposit owed.
What is a security deposit trust account?
A security deposit trust account is a separate bank account where a landlord or property manager keeps tenants' security deposits. The money still belongs to the tenants until the lease ends and any lawful claim is settled. It may not be mixed with rent, operating funds or the owner's personal money, and it may not be spent or pledged.
State law sets the rules, and they vary a great deal. Some states require a separate account, some require interest, some allow a bond instead, and a few set few conditions at all. Florida is a clear example of a detailed rule. Under Florida Statutes section 83.49, a landlord holding a deposit must do one of three things:
- keep the full amount in a separate non-interest-bearing account in a Florida financial institution;
- keep it in a separate interest-bearing account, and pay the tenant interest; or
- post a surety bond with the court clerk and pay the tenant 5 percent simple interest a year.
In both account options, the statute forbids commingling the deposits with the landlord's other funds or using them "until such moneys are actually due the landlord". That phrase is the heart of every security deposit trust account: the money waits, untouched, until a lawful claim or a refund releases it.
What goes in, and what comes out
Deposits in: security deposits and, where the lease requires one, advance rent beyond the next month. Money out: refunds to tenants, lawful deductions moved to the landlord after notice, and advance rent moved to the landlord once its rental period begins. Nothing else belongs there. Repair bills are paid from operating, then recovered from the deposit through a documented claim.
One security deposit ledger per tenant
A security deposit ledger per tenant records what that tenant paid, when, for which unit and lease, any interest credited, and every amount later applied or refunded. The total of all tenant ledgers is what the landlord owes back. That total, not the bank balance, is the figure the account must cover.
Each tenant ledger should hold:
| Field | Example entry |
|---|---|
| Tenant name | Priya Raman |
| Unit and lease | Unit 4B, lease starting 1 June 2025 |
| Deposit received | 1,800.00 on 24 May 2025, receipt 0331 |
| Type | Security deposit (separate line if any advance rent was paid) |
| Interest terms | Interest-bearing account, tenant share credited yearly |
| Interest credited | 31.50 on 31 May 2026 |
| Notice of where held | Sent 10 June 2025 |
| Move-out date | (blank until it happens) |
| Claims and refunds | (blank until move-out) |
| Balance owed to tenant | 1,831.50 |
Pet deposits, key deposits and last month's rent need their own lines, because state rules can treat them differently. Last month's rent is the usual trap. In Florida, advance rent can be moved to the landlord when its rental period starts. A security deposit cannot be touched until the lease ends. Putting both under one "deposit" figure loses the difference.
Keep the receipt or bank record of each payment with the ledger. When a tenant disputes the amount at move-out, the deposit record is the evidence.
Interest on a security deposit trust account
Interest on a security deposit trust account belongs to the tenant, the landlord or both, depending on state law and the type of account. Where tenants are owed interest, the landlord must calculate each tenant's share, credit it to that tenant's ledger and pay it as the law requires, usually yearly or at move-out.
Florida offers the clearest example of an election. When a landlord uses a separate interest-bearing account, section 83.49 requires the tenant to receive at least 75 percent of the annualized average interest rate paid on the account, or 5 percent a year simple interest, whichever the landlord elects. Other states fix a rate, tie it to a published index, or require no interest at all. Check your own state before setting up the account.
Recording the interest
When the bank credits interest to the account, two things happen in the records:
- The bank balance rises by the interest.
- The tenant ledgers rise by the tenants' share, and any landlord share is recorded as owed to the landlord.
If only the first is recorded, the bank will exceed the tenant ledger total, and the excess will sit unexplained. That excess is not a cushion; part of it is owed to tenants. When the landlord's share of interest is withdrawn, leave the tenants' share in place.
An example of the split
The example account earned 240.00 of interest in a year on deposits averaging 24,000.00. The landlord elected the 75 percent option. Tenants are owed 180.00 in total, split by each tenant's average deposit balance during the year. The other 60.00 is the landlord's and can be withdrawn. All figures are examples.
Move-out deductions from a tenant's security deposit
Move-out deductions from a tenant's security deposit are lawful only when the landlord follows the state's notice process: a written claim within a set time, the reason for each deduction, and a chance for the tenant to object. Once the process is complete, the landlord moves the agreed amount out of the trust account and refunds the rest.
Florida's process under section 83.49, as an example:
- No claim: the landlord returns the deposit, with any interest owed, within 15 days after the lease ends.
- Claim: within 30 days after the lease ends, the landlord sends written notice of the intended claim and its reason, by certified mail or email as the statute allows.
- Tenant response: the tenant has 15 days after receiving the notice to object in writing.
- No objection: the landlord deducts the claim and sends the balance within 30 days of the notice.
- Missed notice: a landlord who misses the 30-day notice loses the right to make a claim against the deposit, though they may still sue for damages after returning it.
Other states set different deadlines and require itemised statements, photos or receipts. The bookkeeping is the same everywhere: the claim, the tenant's response and the final split each go on the tenant's ledger.
A worked move-out
Tenant Raman moves out on 31 August 2026. Her ledger shows 1,831.50. All figures are examples.
| Date | Entry | Amount | Ledger balance |
|---|---|---|---|
| 31 Aug | Balance at move-out | 1,831.50 | |
| 22 Sep | Claim notice sent: carpet cleaning 225.00, broken blind 64.00 | 1,831.50 | |
| 9 Oct | No objection received within 15 days of delivery | 1,831.50 | |
| 10 Oct | Transfer to landlord for claim | (289.00) | 1,542.50 |
| 10 Oct | Refund check 1188 to tenant | (1,542.50) | 0.00 |
The ledger closes at zero. The refund check is now an outstanding item on the bank reconciliation until the tenant cashes it.
Reconciling security deposits held to the bank
Reconciling security deposits held to the bank means tying three figures each month: the adjusted bank balance, the deposit register balance, and the total of all tenant ledgers. All three must agree. A gap means a deposit was never banked, a refund was never recorded, or money left the account without a tenant claim behind it.
A worked month for an example account, 30 September 2026:
| Block | Line | Amount |
|---|---|---|
| Bank | Statement balance, 30 Sept | 41,026.00 |
| Bank | Add: deposit in transit, new tenant unit 2A, received 30 Sept | 1,500.00 |
| Bank | Less: outstanding refund check 1179, unit 6C | (950.00) |
| Bank | Adjusted bank balance | 41,576.00 |
| Register | Deposit register balance, 30 Sept | 41,576.00 |
| Tenants | Total of 23 tenant ledgers | 41,516.00 |
| Tenants | Interest owed to landlord, not yet withdrawn | 60.00 |
| Tenants | Total owed from the account | 41,576.00 |
The landlord's 60.00 share of the year's interest, from the split example above, appears as its own line, as owed to the landlord. Without it, the bank would exceed the tenant total by 60.00, and the reviewer would have to explain the gap every month until it is withdrawn.
Brokers who hold deposits for owners they manage face the same three-way tie, often under their real estate license rules as well as landlord-tenant law. Real estate escrow account reconciliation for brokers covers that version.
Protecting the refund checks
Refund checks are the main payments out of this account. A stolen or altered refund check drains tenant money without touching the ledgers. Many banks offer a check-matching service that compares each presented check to a list the account holder has issued. What positive pay is and how it stops altered checks explains how it works and when it is worth the fee.
What breaks a security deposit reconciliation?
A security deposit reconciliation breaks when deposits are banked into the operating account, when repairs are paid straight from the deposit account, when interest is not split, or when a refund is recorded but never sent. Each leaves the bank and the tenant ledgers out of step, usually by an amount that matches one tenant.
The causes, and how each shows up:
- Deposit banked to operating. The tenant ledger shows the deposit; the deposit account never received it. The tenant total exceeds the bank by exactly that deposit.
- Repair paid from the deposit account. A vendor check clears the deposit account with no tenant claim. The bank falls below the tenant total.
- Claim moved before notice. The landlord moves a deduction out before the notice period ends. The bank is right, but the ledger is wrong if the claim later fails.
- Interest left unsplit. The bank rises; the ledgers do not. The bank shows an excess that grows each year.
- Refund recorded, not mailed. The ledger shows zero; no check ever reaches the bank. The outstanding check list grows stale.
- One account for several owners. A manager pools deposits for many owners without ledgers by owner. The bank ties in total, but no one can say which owner's deposits are short.
Each of these is easier to fix in the month it happens. A deposit sent to operating last week takes one transfer to correct. The same error found two years later needs a trace through every intervening month.
Security deposit accounts when a rental property is sold
When a rental property is sold, the security deposits owed to its tenants move with it. The seller hands the deposits, or a credit for them, to the buyer at closing, and the buyer takes over the duty to return them. The tenant ledgers go too, so the new owner knows exactly what each tenant paid.
Practical steps for the seller's records:
- Produce a deposit schedule as of the closing date: each tenant, unit, deposit, interest owed and lease end date.
- Reconcile the account to that date, so the schedule is proven against the bank before it is relied on.
- Agree the transfer method with the buyer: a transfer of the deposit money, or a credit against the price on the settlement statement.
- Record the transfer on each tenant ledger and close the seller's ledgers at zero.
- Notify tenants of the new holder, where your state requires it.
When the deposits are settled as a credit on the closing statement, the money passes through the title or escrow agent's account. Title escrow reconciliation explains how those file balances are tied to the agent's bank.
PreciseBankFlow can take some of the bank-side work off this reconciliation. It foots each statement, matches the lines to your register and lists unmatched items and possible duplicates for review, and the tenant ledgers stay in your records. Request early access to try it on a deposit account.