Yes. If there was no 1099-MISC issued to you by the apartment complex, then here's how you would enter it into TurboTax.
Click on the Federal Taxes tab, then Wages & Income, then scroll all the way to the bottom of the page to Less Common Income. At the bottom of the list of Less Common Income items, click on Miscellaneous Income, 1099-A, 1099-C. You'll then land on the Misc Income screen, where you'll again scroll to the bottom and select Other Reportable Income.
You'll then be taken to the Other Taxable Income page where you'll write in "Renter's Referral Bonus" and the $100 amount. Advance to the end of the section and that's it.
This $100 will appear on line 21 of the 1040.
