In a Jeffco private sale, the seller keeps the plates

Plates do not travel with the car just because they are bolted on. In a private sale, a Colorado license plate belongs to the person, not the vehicle. The seller takes the plates off and keeps them; the new owner drives away on new plates or a temporary registration instead.

This catches both sides off guard. A seller who leaves the plates on, figuring the buyer will sort it out, has just handed away a plate still tied to their own name and record. A buyer who plans to cruise around on the seller’s plates is borrowing trouble that was never theirs to borrow. Neither shortcut holds up.

So the plates come off at the curb, and the buyer arranges their own registration before driving the car for long. That single habit keeps the seller’s name clean and gives the buyer a legal way to be on the road while the title catches up.

It helps to settle the plate question out loud before money changes hands, in the same breath as the title signatures, the bill of sale, and any emissions test that applies to the vehicle and sale. Jeffco’s buying-and-selling and Colorado license plates pages spell out the rest of the handoff, but the plate rule itself is simple: they leave with the person who sold the car.