I run a small RV/ Vehicle rental business. If I consign other people's RV and cars to rent and we share the profit, how do I report it? What do I need to send the owners that I consign for? All vehicles in my fleet are being used 100% for business.

I run a small RV/ Vehicle rental business. If I consign other people's RV and cars to rent and we share the profit, how do I report it? What do I need to send the owners that I consign for? All vehicles in my fleet are being used 100% for business use.