I have a $5,000 invoice that my company is paying $1,000 per month on behalf of another, seperate company that will owe us the $5,000 in the future. Can someone offer help as to how to book this?

My goal is to try and make this appear equally on the P&L so the $1,000 we're paying each month doesn't make our P&L look "worse'. So I guess my question: is there a way to have the $1,000 expense on the P&L offset by something else?

Thanks!