Does Roommate Rent Count as Income for Taxes?

Rent from a roommate is taxable income only when you collect more than that roommate’s fair share of your actual housing costs. Split the bills evenly and keep no profit, and the IRS treats the money as a nontaxable reimbursement. Charge above the breakeven point, and the excess is rental income you have to report.¹

The Profit Test

The deciding factor is whether money came in that exceeded your costs. If your roommate pays $800 a month and their proportionate share of rent, utilities, and insurance comes to $750, that extra $50 is income. If they pay exactly $750, nothing is.

This works the same whether you own the home or rent it yourself and sublet a room, and it applies whether or not you have a written agreement. The IRS looks at the economic reality, not the paperwork.

When your roommate’s payments only reimburse their portion of real household expenses, you have no profit and nothing to report. Pay $2,000 in rent, collect $1,000 from a roommate for half, and that $1,000 just offsets your own bill. You are no richer than before.

How to Figure Your Roommate’s Fair Share

Add up the full year’s housing costs that benefit the whole household:

Rent, or mortgage interest and property taxes if you own
Utilities such as electricity, water, gas, and internet
Homeowners or renters insurance
Routine maintenance that keeps the home working

Then divide using a reasonable method. The simplest is per occupant: two people in a home with $24,000 in annual costs means each person’s share is $12,000, so a roommate paying $1,000 a month generates zero profit. You can also allocate by rooms used or by square footage. If your roommate occupies one bedroom out of six total rooms, roughly one-sixth of shared costs is attributable to their space. Pick a method that honestly reflects the roommate’s use and apply it consistently, because the same allocation controls your deductions if the arrangement does end up producing taxable income.

“Real expenses” means what you actually paid. Rounded-up estimates don’t count, and inflating the share to match a higher rent payment is how expense-sharing quietly turns into unreported income.

If the Payments Do Count as Income

When collections exceed the roommate’s share, you report the full rent received on Schedule E (Form 1040) and deduct the allocated share of expenses on the same form. The difference is your taxable rental profit.² Self-employment tax almost never applies to a roommate arrangement; that tax kicks in only if you provide substantial services like daily housekeeping or prepared meals.

The Depreciation Trap for Homeowners

If you own the home, you are expected to depreciate the rental portion of the building over 27.5 years.³ The depreciation deduction reduces your taxable rental income each year.

Here is the part that catches people. Even if you never claim the depreciation, the IRS treats you as though you did. When you later sell the home, your tax basis is reduced by the depreciation you were entitled to take, whether or not you actually took it.⁴ Skipping the deduction gives you no benefit during the rental years but still costs you the recapture tax at sale.

Deductions Capped at Rental Income

Because you also live in the home, your deductions for the rental portion cannot exceed the rent you collected. Federal law caps rental-use deductions at gross rental income whenever the dwelling is also your residence.⁵ You can’t use a roommate rental to generate a paper loss that shelters your salary. Disallowed deductions carry forward to the next year.

What a 1099-K From Venmo or Zelle Means

Most roommates pay through Venmo, PayPal, Zelle, or a similar app. If one of those platforms sends you a Form 1099-K, it does not automatically mean the money is taxable. A 1099-K simply reports total payment volume. The reporting threshold for third-party payment networks is $20,000 in gross payments and more than 200 transactions in a calendar year.⁶

If a 1099-K arrives that includes nontaxable expense-sharing payments, account for it on your return so the IRS computers don’t flag a mismatch. The standard move is to report the 1099-K total and then back out the nontaxable portion with a clearly labeled adjustment on Schedule 1. Payment-app memos noting “rent share” or “May utilities,” screenshots of the underlying bills, and a simple spreadsheet make that defense easy.

Security Deposits Are Not Income

A refundable security deposit isn’t income when you receive it. It only becomes income if you keep part of it, and then only in the year you keep it.³

One exception: if the deposit is labeled as the last month’s rent instead of a refundable deposit, the IRS treats it as advance rent and you report it in the year you receive it.¹

What Happens If You Don’t Report

Collect profit and leave it off your return, and the IRS can assess an accuracy-related penalty of 20% on the underpaid tax, on top of the tax itself.⁷ The penalty applies to underpayments caused by negligence or a substantial understatement of income, and interest accrues from the original due date.

Small amounts can go unnoticed for a while. They don’t always stay that way. A 1099-K from a payment app, or a roommate who claims the rent on their own return, can surface the income years later. Amending voluntarily before the IRS reaches out usually ends better than waiting for a notice.

The Hidden Cost When You Sell the Home

Owners face a tax consequence most people never see coming. Normally you can exclude up to $250,000 of gain on the sale of your primary residence, or $500,000 for a married couple filing jointly, if you owned and lived in the home for at least two of the five years before the sale.⁸

That exclusion does not cover gain equal to the depreciation you claimed, or could have claimed, on the rental portion after May 6, 1997. That depreciation must be recaptured and taxed at a flat 25% rate.⁹ If you took $12,000 in depreciation deductions across several years of having a roommate, you owe $3,000 in recapture at sale even if the rest of your gain is fully excluded. If you never claimed the depreciation, you still owe recapture on what you were entitled to claim. The IRS doesn’t let you skip the deduction and avoid the tax at the back end.

Records to Keep

Whether your arrangement is pure expense-sharing or produces rental income, documentation is the thing that protects you. The IRS expects you to substantiate both income and expenses with receipts, canceled checks, bank statements, or bills if your return is audited.¹⁰

At minimum, keep a running total of housing expenses, records of every payment your roommate makes (payment-app confirmations with notes like “June rent share” work well), and the written calculation showing how you allocated costs. If the arrangement is expense-sharing, those records prove no profit existed. If it generates rental income, the same records support your Schedule E deductions. Hold onto everything for at least three years after filing, and longer if you are depreciating the rental portion of a home you own.

1
Internal Revenue Service. Topic No. 414, Rental Income and Expenses
2
Internal Revenue Service. About Schedule E (Form 1040), Supplemental Income and Loss
3
Internal Revenue Service. Publication 527 (2025), Residential Rental Property
4
Internal Revenue Service. Publication 946 (2025), How To Depreciate Property
5
Office of the Law Revision Counsel. 26 U.S. Code 280A – Disallowance of Certain Expenses in Connection With Business Use of Home, Etc.
6
Internal Revenue Service. Treasury, IRS Issue Proposed Regulations Reflecting Changes From the One, Big, Beautiful Bill to the Threshold for Backup Withholding on Certain Payments Made Through Third Parties
7
Internal Revenue Service. Accuracy-Related Penalty
8
Office of the Law Revision Counsel. 26 USC 121 – Exclusion of Gain From Sale of Principal Residence
9
eCFR. 26 CFR 1.121-1 – Exclusion of Gain From Sale or Exchange of a Principal Residence
10
Internal Revenue Service. Tips on Rental Real Estate Income, Deductions and Recordkeeping