As long as you're not getting rent from your roommates equal to or more than what rent for a comparable room would go for in your area, you can assume that arrangement to be a "cost-sharing" and not report it.
If you are listing your property on Airbnb and do not own it (i.e., you are a renter) you should enter that you own it, and that you are an active participant.
Please feel free to post any additional details or questions in the comment section.
See the full answer with instructions here:
https://ttlc.intuit.com/replies/5987613
