This template gives you everything you need for a professional, customizable and legally binding Bill Of Sale Iowa.
Yes, for vehicles and trailers—the state actually requires one for all title transfers as of 2022. For everything else, it's a solid way to document what happened.
List the people involved, the item sold, the date, and the payment amount. You’ll want some form of ID info if the item has one.
Iowa DOT has a vehicle form. For general property, most people download a simple fillable Bill of Sale and save a copy.