Security Deposit Disposition

Excel Formulas › Property Management

All versionsSUM

At move-out, the security deposit is reconciled: deposit minus itemized deductions (damage, cleaning, unpaid rent) equals the refund — or the balance the tenant still owes if deductions exceed the deposit.


Quick formula: refund after itemized deductions:
=deposit - SUM(deductions)
Deposit minus the total of itemized deductions. If deductions exceed the deposit, the result is what the tenant owes.

Functions used (tap for the full reference guide):

The example

$1,500 deposit, $640 deductions.

AB
1ItemValue
21500 − 640—
3Refund→ $860

The formula

The formula:

=deposit - SUM(deduction_range) // deposit − total deductions

How it works

How it works:

  1. Itemize deductions — damage beyond normal wear, cleaning, unpaid rent — and SUM them.
  2. Subtract from the deposit for the refund.
  3. If deductions exceed the deposit, the negative is the balance the tenant owes.
  4. Use MAX(refund, 0) for the refund and a separate cell for any amount owed.

Itemization is a legal requirement, not a courtesy. Most jurisdictions require a written, itemized statement of deductions within a set number of days of move-out, and only allow charges beyond “normal wear and tear.” Keep each deduction on its own line with a description and amount, sum them, and document the rest. This is illustrative bookkeeping, not legal advice — follow your local deposit statute and deadlines.

Try it: interactive demo

Live demo

Deposit and total deductions.

Refund · Owed

Variations

Refund (floored)

Never negative:

=MAX(deposit - SUM(deductions), 0)

Balance owed

If over deposit:

=MAX(SUM(deductions) - deposit, 0)

Total deductions

Itemized sum:

=SUM(deduction_range)

Pitfalls & errors

Itemize. Each deduction on its own line with a description.

Wear and tear. Normal wear isn’t deductible in most places.

Not legal advice. Deposit statutes and deadlines vary — follow them.

Practice workbook

📊
Download the free Security Deposit Disposition practice workbook
A deposit-disposition sheet with the floored-refund, balance-owed, and total variants, plus 4 challenges with answers. No sign-up required.

Frequently asked questions

How do I calculate a security deposit refund in Excel?
Subtract total deductions from the deposit: =deposit - SUM(deduction_range). $1,500 minus $640 is an $860 refund.
What if deductions exceed the deposit?
The negative is what the tenant owes. Use =MAX(SUM(deductions) - deposit, 0) for the balance owed.
What can I deduct?
Damage beyond normal wear, cleaning, and unpaid rent — itemized in writing. Check your local statute and deadlines.

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Related formulas: Vacancy & turnover cost · Running total · Vendor deposit & balance

Function references: SUMMAX