Check out this site for American Homestay Network:
https://www.homestaynetwork.com/hosting/homestay-tax-questions/
I am using Schedule C, reporting 1099 as Income, and Depreciating Property such as 100% of furnishings bought for students, remodel expense of rooms. Expensing supplies using sq footage % for utilities, home maintenance, % of household # for food. And mileage for driving students. In addition, food and entertainment purchased for them.
