Just enter the amount of rent you collected as cash. Not everyone receives a 1099.
Not Rented for Profit
If you don’t rent your property to make a profit, you can’t deduct rental expenses in excess of the amount of your rental income. You can’t deduct a loss or carry forward to the next year any rental expenses that are more than your rental income for the year.
Where to report.
Report your not-for-profit rental income on Schedule 1 (Form 1040), line 8. If you itemize your deductions, include your mortgage interest and mortgage insurance premiums (if you use the property as your main home or second home), real estate taxes, and casualty losses from your not-for-profit rental activity when figuring the amount you can deduct on Schedule A.
Presumption of profit.
If your rental income is more than your rental expenses for at least 3 years out of a period of 5 consecutive years, you are presumed to be renting your property to make a profit.
Postponing decision.
If you are starting your rental activity and don’t have 3 years showing a profit, you can elect to have the presumption made after you have the 5 years of experience required by the test. You may choose to postpone the decision of whether the rental is for profit by filing Form 5213. You must file Form 5213 within 3 years after the due date of your return (determined without extensions) for the year in which you first carried on the activity or, if earlier, within 60 days after receiving written notice from the IRS proposing to disallow deductions attributable to the activity.
More information.
For more information about the rules for an activity not engaged in for profit, see Not-for-Profit Activities in chapter 1 of Pub. 535
