Off-road doesn't mean off the books
Many states title or register ATVs and UTVs, and even where they don't, a signed bill of sale is the document that proves the machine changed hands — important when a quad sold last summer turns up abandoned on a trail with your name still attached.
What to record for an ATV or UTV
Year, make, model, color, and the VIN (usually stamped on the frame near the front left wheel or under the shifter on a side-by-side). Record hours or mileage — whichever the machine tracks — and note included extras like a winch, plow, or spare set of tires in the description.
Buying used? Check the VIN first
Stolen off-road vehicles are resold constantly. Match the frame VIN against the title or registration where one exists, and against the seller's ID where one doesn't. Then record the true price — several states calculate registration tax from it.