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Entry · Accounting

Security Deposit

A security deposit is money a tenant, customer or contractor hands over up front, which the receiving party holds as protection in case bills go unpaid or property gets damaged. It is not a payment for goods or services; it stays the depositor's money and is meant to come back when the arrangement ends cleanly.

Businesses meet them most often on commercial leases, utility accounts and equipment hire.

From the Money Master HQ dictionary, founded by Shihan Sheriff (FCMA, VP of Finance at Nomod, CFO at Esanjo Ventures). How these definitions are written.

What it means

The core idea is straightforward: the party taking the risk wants a cash cushion it can draw on if the other side fails to perform. Because the money is only held rather than earned, it sits on the holder's balance sheet as a liability and on the depositor's balance sheet as an asset.

For a business signing a commercial lease, the deposit is often the largest single cash outlay at move-in, ahead of the fit-out itself. Landlords typically ask for one to six months of rent depending on how strong the tenant's credit looks, and a young company with no trading history usually sits at the higher end of that range.

Accounting treatment matters more than most managers expect. A deposit you pay is recorded as a receivable or other asset, not an expense, so it never touches profit unless and until it is forfeited.

If you expect it back more than twelve months away, it belongs in non-current assets rather than current ones. The deposit is normally returned after an inspection, minus documented deductions for damage, cleaning or unpaid charges.

Good practice is to photograph the space on day one and on the last day, because disputes almost always come down to who can evidence the original condition. A common variant is the bank guarantee or letter of credit, where a bank promises to pay the landlord instead of the tenant tying up its own cash.

That costs an annual fee but keeps the money working inside the business, which is why growing companies push hard to negotiate it.

In practice

Real-world examples.

1

Example

A software startup leasing its first office at $6,000 per month is asked for six months of deposit because it has no trading history, tying up $36,000. The finance lead negotiates the landlord down to three months by offering a personal guarantee from the founder, freeing $18,000 of runway.

2

Example

A regional utility requires a $2,500 deposit from a new restaurant customer with no payment record. After twenty-four months of on-time bills the utility refunds the deposit automatically, and the restaurant recognises it as a return of cash rather than income.

3

Example

A film production company hires $180,000 of camera gear for a shoot and pays a $15,000 deposit against loss or damage. A lens is scratched, the supplier deducts $2,800 for the repair, and the company receives $12,200 back and expenses the difference.

Formula

Calculation

Deposit required = monthly rent x number of months held Deposit returned = deposit held - documented deductions A design agency signs a five-year lease at $8,000 per month and the landlord asks for three months of rent as a security deposit. The deposit is 8,000 x 3 = $24,000, paid on signing and recorded as a non-current asset rather than as rent expense. At the end of the lease the landlord inspects the premises and documents $3,500 of repairs to damaged partition walls plus $1,200 of unpaid utility charges. Deductions total 3,500 + 1,200 = $4,700, so the refund is 24,000 - 4,700 = $19,300. The agency moves $19,300 back into cash and books the $4,700 it will never see again as an expense in the final period. Had the space been handed back spotless, the full $24,000 would have returned to cash with no effect on profit at all.

Case study

Seen in the real world.

Northwind Ceramics is an illustrative, fictional homeware maker that moved from a shared studio into its own 4,000 square foot unit. The landlord asked for four months of rent at $5,500 per month, so Northwind paid $22,000 on signing and, mistakenly, booked the whole amount as occupancy expense. That single entry pushed the quarter into a reported loss and triggered an awkward conversation with the company's bank.

The bookkeeper corrected the entry, moving the $22,000 out of expenses and into a non-current asset called lease deposits. Profit for the quarter recovered immediately, because the money had never been spent in any economic sense; it had simply changed form from cash to a claim on the landlord. Three years later, when Northwind moved to a larger unit, $20,600 came back after an agreed $1,400 deduction for repainting.

Watch out

Common mistakes.

  • Treating a security deposit you pay as an expense in the period you pay it, which understates profit and hides an asset that is genuinely recoverable.
  • Assuming the deposit covers your final month of rent, when most commercial leases explicitly say it does not and still expect that last payment in full.
  • Failing to record and photograph the condition of premises or equipment at handover, which leaves you with no evidence when deductions are proposed.

Questions

People also ask.

Is a security deposit taxable income for the party holding it?

Generally no, because the money is held on behalf of someone else and only becomes income if and when it is properly forfeited.

Can a landlord keep the deposit for ordinary wear and tear?

Usually not, since deposits are meant to cover damage and unpaid amounts rather than the normal ageing of a space over a long tenancy.

What is the alternative if I do not want to tie up cash?

A bank guarantee or letter of credit gives the landlord the same protection for an annual fee, typically a small percentage of the guaranteed amount.

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From the founder's library

Accounting Fundamentals: A Non-Finance Manager's Guide to Finance and Accounting, by Shihan Sheriff

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Last updated · October 8, 2026
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The information provided in this finance dictionary is for educational and informational purposes only. It should not be construed as financial, investment, legal, or tax advice. Always consult with a qualified professional before making any financial decisions. Money Master HQ makes no representations or warranties about the accuracy, completeness, or suitability of this information. Use of this content is at your own risk.