how do taxes work?

From the Rover Support / Help Center: https://support.rover.com/hc/en-us/ar...

I am not a tax professional, but I have filed as an independent contractor for many years. This is just my experience, not professional advice. You are considered an independent contractor and as such should probably file a Schedule .C. For specific information. go to irs.gov and search for Schedule C.

Keep in mind you will be responsible for paying self-employment taxes on your earnings, so set aside about 20-30% for that if you plan on making a lot. Consult a tax professional for specifics.