Is Last Month's Rent Taxable? Yes, in the Year You Get It

TL;DR: Last month's rent is taxable income in the year you collect it, per IRS Publication 527, even if the tenant won't actually live in the unit for another 11 months. This is different from a refundable security deposit, which isn't income until you keep some or all of it. Report it on Schedule E as rental income in the year received, then track any repairs you fund from it as separate deductible expenses.

_Last reviewed: August 2026 · 6 min read_

You collected $1,800 as "last month's rent" from a new tenant back in January, and now it's tax season and you're not sure if that money counts as income this year or next. It does count this year, and the IRS doesn't care what you labeled it on the lease.

Okoniq Property Hub keeps a running log of every rent payment and its label, so you can tell the IRS exactly when each dollar came in and what it was for.

Is last month's rent taxable when you collect it?

Yes. The IRS treats last month's rent as ordinary rental income the moment it lands in your account, regardless of which month the tenant actually occupies the unit. This comes straight from IRS Publication 527, which states that advance rent is included in gross income in the year you receive it.

So if a tenant signs a 12-month lease starting June 2025 and pays first month, last month, and a $1,500 deposit on May 20, 2025, the "last month's rent" portion gets reported as 2025 income, not 2026 income, even though the tenant won't use that final month until May 2026. Many landlords assume it works like a deposit and gets deferred. It doesn't.

This trips people up because the money sits untouched for months, sometimes over a year, before it's "used." The IRS doesn't look at usage. It looks at receipt.

How is last month's rent different from a security deposit for tax purposes?

The line comes down to whether the money is refundable. A security deposit that you're legally required to return is not income when you collect it. It only becomes income if and when you keep part or all of it, for example to cover damage beyond normal wear and tear.

Last month's rent is the opposite. It's payment for a specific period of tenancy, non-refundable by design (in most leases), so it's income from day one. If your lease calls something "last month's rent" but your state law says tenants can request it back if they give proper notice and leave the unit in good condition, that muddies things. State landlord-tenant statutes vary widely on this, and some states cap how much you can collect as deposit-equivalent upfront. Check your state's specific rules before drafting the lease clause.

| | Last Month's Rent | Security Deposit | |---|---|---| | Taxable when received? | Yes | No | | Refundable? | Usually no | Yes, minus deductions | | Reported on | Schedule E, year received | Not reported unless kept | | Used for damage? | No, separate from deposit | Yes, that's its purpose |

What if you have to return part of last month's rent?

You take a deduction the year you return it. If a tenant breaks the lease early and state law requires you to refund the unused portion of last month's rent, you report that refund as a reduction to rental income in the year you pay it back, not by amending the prior year's return.

Say you collected $2,000 as last month's rent in 2024, reported it as income that year, then the tenant moved out early in 2025 and you refunded $800 per your state's statute. You'd deduct that $800 against 2025 rental income. Keep the paper trail: the original lease clause, the move-out date, and the refund check or transfer record. If you're also fixing up the unit before re-renting, track those costs separately since ordinary repairs like drywall patching are deductible business expenses, not offsets against the rent refund itself.

How do you report last month's rent on your tax return?

You add it to gross rents received on Schedule E, line 3, alongside regular monthly rent, application fees you keep, and any other rental income for the property. There's no separate line for "last month's rent." It's just rent.

If you're tracking multiple units or multiple tenants with different lease start dates, this is where spreadsheets fall apart fast. A $2,200 payment in November could be month 11's rent for one tenant and last month's rent for another tenant who just signed, and mixing those up understates or overstates a given tax year's income. Landlords who get audited over rental income discrepancies often can't reconstruct which payment was which a year later.

What records should you keep in case of an audit?

Keep the lease, the payment date, and a note on what the payment covered, for as long as you own the property plus at least 3 years after filing that year's return, which is the IRS's standard audit window under Section 6501. If you ever use last month's rent funds to cover a specific repair, say a foundation issue you caught during a foundation crack inspection after move-out, document that repair with its own receipt and date so it's clearly a separate deductible expense, not a wash against the rent income.

Landlords who self-manage two or three units often lose this trail simply because payments come in through different channels, cash, Venmo, a bank transfer, each labeled loosely or not at all. Consistent labeling at the point of collection saves hours during tax prep.

FAQ

Does last month's rent count as income even if the tenant never moves out?

Yes. Once you receive the payment, it's taxable income for that year regardless of what happens later with the tenancy, per IRS Publication 527's treatment of advance rent.

Can I count last month's rent as a security deposit instead to defer the tax?

No, not just by relabeling it. The IRS looks at whether the money is refundable under your lease and state law, not what you call it on paper. If it's non-refundable rent for a specific month, it's income when received.

What happens if I mistakenly reported last month's rent in the wrong tax year?

File an amended return, Form 1040-X, for the year you should have reported it, and adjust the following year if you'd already claimed it there. The sooner you catch it, the smaller the penalty and interest exposure.

Is last month's rent subject to self-employment tax?

No. Rental income reported on Schedule E is generally not subject to self-employment tax unless you're running the rental as a trade or business that rises to the level of a real estate dealer, which is a distinct and less common classification.

Do I need to issue a 1099 for last month's rent I collected?

No, 1099s are for payments you make to contractors or service providers, not payments tenants make to you. You report last month's rent as income you received, not as a payment you issued.

This is educational information, not tax advice. Talk to a CPA familiar with rental property taxation, and check your state's specific statute on last month's rent and security deposit handling before drafting lease terms.