The short answer
They split. Prorated rent is not boot: Treas. Reg. §1.1031(k)-1(g)(7)(i) expressly disregards it, and it never enters your amount realized because it is ordinary rental income for the days you owned the building. A security deposit credited to the buyer is the dangerous one, because the deposit obligation is not treated as a liability the buyer assumes, so it shrinks the cash reaching your intermediary without shrinking what you must reinvest, and you cannot plug the hole with new debt on the replacement. Wire the deposits to the buyer from your operating account instead, and let the full contract price flow to the intermediary.
At a glance
| Prorated rent | Disregarded by Reg. §1.1031(k)-1(g)(7)(i); ordinary income, not amount realized |
|---|---|
| Security deposits | Not income when received (Pub. 527) and not a liability you can offset with debt |
| Prepaid and last month's rent | Advance rent: already in income in the year received, per Pub. 527 |
| The fix | Transfer deposits by separate wire so the full price reaches the intermediary |
| Cash needed instead | Outside cash equal to the credit, added at the replacement closing |
| Why new debt will not work | Debt offsets debt relief; a deposit credit is not debt relief |
| Property tax prorations | Excluded from amount realized by Reg. §1.1001-1(b), so neutral on boot |
| Repair and CAM credits | Negotiated adjustments; agree in writing whether they reduce the price |
The regulation names prorated rent, which settles half the question in one sentence
Treas. Reg. §1.1031(k)-1(g)(7)(i) disregards 'items that a seller may receive as a consequence of the disposition of property and that are not included in the amount realized from the disposition of property (e.g., prorated rents)'. Taking your share of the closing month's rent at the table does not break the safe harbor and does not touch the exchange.
It is not boot for a simpler reason as well. Rent for the days you owned the building is ordinary rental income reported on Schedule E, so it was never part of the price you received for the property and can never be part of the money treated as received in the exchange.
Handle it as income, not as proceeds: a $9,000 rent proration on a September closing is September rent, and it belongs on the same line as the eight months before it.
A deposit credit is the tenants' money, and that is exactly what makes it dangerous
Publication 527 tells landlords: 'Don't include a security deposit in your income when you receive it if you plan to return it to your tenant at the end of the lease.' It sat on your books as an obligation, never as revenue, and at closing the buyer takes over the obligation and takes a credit for the cash.
Intermediaries, citing TAM 8328011, treat that obligation as something other than a liability of the property for exchange purposes. The consequence is the practical one: because it is not debt relief, you cannot offset it by borrowing more on the replacement. The only cure is cash.
So the credit leaves a hole exactly its own size. The contract price is what you must reinvest; the wire to your intermediary is smaller by the credit; and the difference is recognized gain unless you put your own money in.
Worked example: a hypothetical $3,000,000 apartment sale with $40,000 of deposits
Assume a $3,000,000 price, $180,000 of commissions and title charges, $40,000 of security deposits, $12,000 of last month's rent collected at lease signing, and $9,000 of prorated September rent you receive. Basis is $900,000 and there is no mortgage.
Exchange expenses of $180,000 come off the money treated as received. The $9,000 of rent is income and stays outside. The $52,000 of deposits and advance rent is credited to the buyer, so the intermediary receives $2,768,000 while the price you must match is $2,820,000 after expenses.
Buy a replacement for $2,768,000 and $52,000 is boot. Bring $52,000 of your own cash to the replacement closing, buy at $2,820,000, and nothing is recognized. You already hold that $52,000; it is the tenants' money sitting in your operating account.
- Price $3,000,000 less $180,000 of exchange expenses: reinvestment target $2,820,000.
- Credits to the buyer: $40,000 of deposits plus $12,000 of advance rent.
- Wire to the intermediary: $2,768,000. Shortfall: $52,000.
- Adding a $52,000 larger loan on the replacement does not fix it, because no debt was relieved.
- Round hypothetical numbers used to show the arithmetic, not to model a real building.
The cleaner move: take the deposits off the settlement statement entirely
Ask the buyer's counsel to handle the deposits as a separate transfer outside escrow, documented by a deposit-transfer schedule and a wire from your operating account on the closing date. The settlement statement then shows the full $3,000,000 going to the intermediary and nothing needs to be made up later.
Do the same with last month's rent. Publication 527 is blunt that advance rent goes 'in your rental income in the year you receive it regardless of the period covered or the method of accounting you use', so handing it to the buyer is settling an obligation on money you were already taxed on, not selling anything.
Raise this with the buyer before the contract is signed. Once a purchase agreement says deposits will be credited at closing, changing the mechanics needs the buyer's cooperation, and your exchange cooperation clause is the natural place to have asked.
CAM reconciliations, tenant improvement allowances and repair credits follow the same test
Ask one question of every credit: is it a reduction in what the buyer is paying for the real estate, or is it you settling an obligation you already owed? A negotiated price reduction for a roof lowers both the price and your amount realized, so nothing is left over. An obligation you carry forward, funded by a credit, behaves like a deposit.
Over-collected common area maintenance estimates owed back to commercial tenants, unfunded tenant improvement allowances under signed leases, free-rent periods you agreed to and outstanding leasing commissions all belong in the second group. Fund them yourself or accept the shortfall.
Property tax prorations behave differently again, because Reg. §1.1001-1(b) keeps the buyer's share out of your amount realized; the full sweep of the settlement statement is in which closing costs can be paid from exchange funds.
- Reduces the price and the amount realized: repair credits, price adjustments after inspection.
- Settles your own obligation and leaves a hole: security deposits, pet and key deposits, advance rent, CAM refunds owed, unfunded TI allowances, unpaid leasing commissions.
- Neither: real property tax and assessment prorations, which sit outside amount realized on both sides.
The four numbers to pin down before the relinquished closing
Run these before the statement is drafted, and have your own CPA or attorney confirm the treatment of anything unusual in your leases, because the characterisation lands on your return.
Breakwater Exchange is a 1031 exchange broker with more than twenty years of experience, and multifamily and net-lease Delaware Statutory Trusts from vetted national sponsors are one way to absorb the extra cash a deposit credit forces you to bring (multifamily as replacement).
- Total security deposits held, tenant by tenant, reconciled to your trust or operating account.
- Advance and last month's rent collected, with the months it covers.
- CAM, tax and insurance estimates collected against the actual figures for the year to date.
- Any lease obligation the buyer will inherit unfunded: allowances, free rent, commissions.
Related questions
Is prorated rent I receive at closing taxable?
Yes, as ordinary rental income for the days you owned the property, reported on Schedule E. It is taxable but it is not boot, and it does not affect the exchange.
Can I just let the buyer keep the deposits and reduce the price instead?
You can, and it is clean, but it lowers your contract price and therefore your reinvestment target and your gain. Agree it in the purchase agreement rather than at the closing table.
What if I already spent the deposits?
Then the credit comes out of proceeds and you either fund the replacement shortfall from elsewhere or accept boot in that amount; the tax on it is broken down in is boot taxed as recapture or capital gain first.
Does a larger loan on the replacement cover a deposit credit?
No. Extra debt offsets debt relief, and a deposit credit relieves no debt; see does a bigger loan offset cash I keep.
Do I need to worry about deposits when I buy into a DST?
No. You buy a beneficial interest and the trust's property manager already holds the tenant money; your side of the closing is a subscription, not a settlement statement.
Sources
Checked against these publications on September 19, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.
- Treas. Reg. §1.1031(k)-1 (paragraph (g)(7))
- IRS Publication 527, Residential Rental Property
- Treas. Reg. §1.1001-1(b), real estate taxes as amounts received
- IRS Publication 544, Sales and Other Dispositions of Assets
- IRS Instructions for Form 8824
- Legal 1031, transactional costs payable with exchange funds
- IPX1031, closing costs and the tax-deferred exchange
