To report sublease income on your tax return, add up every dollar your subtenant paid you during the year, subtract the rent you paid your own landlord and other allowable expenses, and report the net figure on Schedule E of your Form 1040. That is the path most sublessors take. If you provide hotel-style services or run a short-term rental through a booking platform, the reporting shifts to Schedule C and picks up self-employment tax. The rules below cover both.
What Counts as Income
Your gross sublease income is everything the subtenant paid you for use of the space during the year: monthly rent, late fees, and any non-refundable charges.
Advance rent counts in the year you receive it, even if it covers a later period. Rent for January and February collected in December belongs on that December year’s return.
Refundable security deposits are not income when you receive them. They become income only if you keep part or all of the deposit after the subtenant breaks the lease, and you report the retained amount in the year you decide to keep it. A “security deposit” that is really the last month’s rent under a different label is advance rent and taxable when received.
The 14-Day Exception
If you live in the property and sublease it for fewer than 15 days during the year, you report none of the income and deduct none of the expenses. Rent a spare room out for two weeks at $500 a night during a major event and the $7,000 is tax-free under this rule.
The property must qualify as your residence, meaning you personally use it for more than the greater of 14 days or 10 percent of the days it’s rented at a fair price.
Schedule E or Schedule C
The form you use is not cosmetic. It changes how much tax you owe.
Use Schedule E (Form 1040) when you’re renting out space and the subtenant handles their own daily life. A standard long-term sublease belongs here. This is where most residential sublessors report.
Use Schedule C when you provide substantial services primarily for the subtenant’s convenience. The IRS points to regular cleaning, changing linens, and maid service as examples. Short-term rentals booked through Airbnb or VRBO often land on Schedule C because hosts typically furnish the space, supply toiletries, coordinate check-in, and clean between guests. There’s no bright-line test; the character of the services decides it.
The consequence of Schedule C is self-employment tax. Net Schedule C sublease income over $400 is subject to self-employment tax at 15.3 percent (12.4 percent Social Security, 2.9 percent Medicare). For 2026, the Social Security portion applies to the first $184,500 of combined wages and self-employment earnings; the Medicare portion has no cap. A $10,000 net profit reported on Schedule E is hit only with income tax. The same $10,000 on Schedule C picks up roughly $1,530 in self-employment tax on top. Half of the self-employment tax comes back as an adjustment to income on Form 1040, but the extra tax is still real.
Expenses You Can Deduct
You pay tax on net profit, not gross rent. Subtract allowable expenses first.
For most sublessors, the biggest deduction is the rent you pay your own landlord under the master lease. Other common deductions include utilities you cover for the subtenant, minor repairs, cleaning between tenants, renter’s insurance premiums tied to the rental activity, and advertising costs to find a subtenant. Each expense must be ordinary and necessary for the sublease, not personal.
Proportional Allocation
When you sublease only part of your home, or only for part of the year, you can’t deduct 100 percent of shared expenses. Split them by space and by time.
The space fraction is the percentage of the home the subtenant occupies. A 200-square-foot room in a 1,000-square-foot apartment is 20 percent. The time fraction is fair rental days divided by total days in the year. Rented 120 days is roughly 33 percent. Multiply the two and apply the result to shared costs like your master lease payment and utilities. In this example, about 6.6 percent of those shared annual expenses is deductible.
Expenses that benefit only the rental space, like repainting the subtenant’s room, are fully deductible without the proportional math. You have to justify whatever allocation method you use, so keep receipts, invoices, and a record of the measurements.
Routine repairs like fixing a leaky faucet are deductible in the year you pay. Capital improvements that extend the property’s useful life have to be depreciated over several years rather than written off at once.
Filling In Schedule E
For a passive sublease that clears the 14-day threshold, the numbers flow onto Part I of Schedule E:
- Line 2, Rental days: the number of fair rental days and personal use days. The IRS uses these to verify your allocation.
- Line 3, Rents received: total gross sublease income for the year, before any expenses.
- Line 14, Repairs: the proportional cost of repairs attributable to the rental use.
- Line 17, Utilities: the proportional share of utilities tied to the sublease.
- Line 19, Other expenses: the rent you pay your primary landlord goes here, since it doesn’t fit neatly into Lines 5 through 18. Write a short description next to the amount, such as “master lease rent.”
Schedule E subtracts total expenses from gross rents automatically. The net figure carries to Schedule 1 and then to your Form 1040, where it joins the rest of your taxable income.
When Expenses Exceed Income
If your sublease costs more than it brings in, you have a rental loss. Rental activities are generally passive, so losses can only offset other passive income, not wages.
The common exception: if you actively participate in the rental, you can deduct up to $25,000 of rental losses against non-passive income each year. Active participation means making meaningful management decisions such as approving the subtenant, setting the rent, and authorizing repairs. You also need to own at least a 10 percent interest in the activity.
The $25,000 allowance phases out as modified adjusted gross income rises above $100,000. It drops by 50 cents for every dollar over that threshold and disappears at $150,000. Married filing separately, if you lived with your spouse at any point during the year, the allowance is zero.
Losses you can’t use this year carry forward. They can offset passive income in later years, or you can deduct them in full when you dispose of the entire activity. When your loss exceeds the allowable amount, report the limitation on Form 8582 and attach it to your return.
Platform Payments and Form 1099-K
If your subtenant pays you through Airbnb, VRBO, Venmo, or a similar platform, you may receive a Form 1099-K reporting the gross payments processed for you. For 2026, platforms must issue a 1099-K when payments exceed $20,000 and there are more than 200 transactions.
The 1099-K threshold does not decide what’s taxable. All sublease income is reportable whether or not the form arrives. And when it does arrive, the gross figure often won’t match what you owe tax on, because it doesn’t account for your deductible expenses or for any non-rental amounts that ran through the same account.
Platforms and payment apps sometimes mix personal reimbursements, like a roommate paying you back for groceries, into the same stream as rental income. Reconcile the amounts so only actual sublease income lands on your return, and mark personal payments as non-business within the app when the option exists.
Estimated Tax and Local Occupancy Tax
Sublease income has no withholding. If you expect to owe $1,000 or more in total tax after withholding and credits, the IRS expects quarterly estimated payments, typically due April 15, June 15, September 15, and January 15 of the following year. You avoid the underpayment penalty by paying at least 90 percent of the current year’s tax through withholding and estimates, or 100 percent of the prior year’s tax. If you also have a W-2 job, raising your employer withholding through a new Form W-4 is usually simpler than sending quarterly checks.
Federal income tax isn’t the only obligation. Many cities and counties charge occupancy or transient lodging taxes on short-term rentals, generally stays under 30 days. Combined rates range from zero to over 20 percent depending on the jurisdiction. Some platforms collect and remit these automatically, but platform collection doesn’t always cover every local layer. Check with your local tax authority if you sublease short-term. Occupancy taxes you pay are generally deductible as a rental expense on your federal return.
Records to Keep
The burden of proof for every deduction sits with you. Hold on to the sublease agreement, bank statements showing rent received and rent paid, receipts for each deductible expense, and a log of fair rental days versus personal use days. If you allocate expenses proportionally, keep the measurements and the calculation.
Failing to report sublease income, or underreporting it, can bring a 20 percent accuracy-related penalty on the underpaid tax, plus interest. The risk climbs when a platform has already sent the IRS a 1099-K, because the automated matching system will flag any gap between what was reported to the agency and what showed up on your return.