Ask for the Out-the-Door Number. Then Read Every Line.

Every negotiation I have ever watched go sideways went sideways the same way: the buyer won the argument about the price of the car and lost the argument about everything else.

So start somewhere else. Before you talk payments, before you talk trade, ask one question in writing: what is the total out-the-door price, itemized?

What shows up between sale price and out-the-door

CarEdge analyzed 74,291 verified out-the-door quotes from 18,489 dealers between July 2025 and August 2026. The national average documentation fee came in at $466, ranging from $85 in California, where it is capped, to $910 in Florida, where it is not.

Then there are add-ons. Their averages, when charged:

• Protection plans — $1,542
• Accessories — $1,493
• Paint protection — $918
• Theft protection — $809
• Window tinting — $638

Worth saying clearly: the same analysis found 68% of dealers charge no mandatory add-ons at all. This is not a universal scam. It is a distribution, and you want to know which end you are standing on before you get emotionally attached to a specific vehicle.

The Iowa rule most buyers here do not know

If you are buying in Iowa, the documentary fee is not a free-for-all. Iowa Code section 322.19A is specific, and it is short enough to be worth knowing.

A dealer may not charge a documentary fee exceeding $180 per vehicle sold. That is the ceiling, statewide, new or used.

It goes further. A dealer who charges a documentary fee shall include the fee in the price of the motor vehicle, and shall disclose the full amount of the fee in any advertised price and when making or accepting an offer to sell. The statute also requires this notice, clearly and conspicuously, in the purchase agreement: a documentary fee is not an official fee, and is not required by law.

A violation is an unlawful practice under Iowa Code section 714.16, the state’s consumer fraud statute.

Compare that $180 ceiling to the $466 national average. Iowa buyers start with an advantage most of the country does not have. Use it.

Know where the leverage is before you go

Leverage is inventory. In June the industry averaged 80.3 days’ supply across roughly 2.82 million new vehicles, with an average listing price of $49,336. But the average hides everything useful.

Toyota, Lexus and Honda ran the tightest inventory in the country. Chevrolet sat at 76 days, Kia at 74. Jeep carried roughly twice the industry average. If you want to know how a conversation is going to go before you have it, look up days’ supply for that brand and that model.

Incentives tell the same story from a different angle. Industry-wide incentive spending was 7% of average transaction price in June, right at the 13-month average. On EVs it was 13%. When a manufacturer is spending double the industry rate to move a segment, that is not generosity, that is a signal.

A sequence that works

• Get the out-the-door number in writing, by email, itemized. Every line. If a dealer will not put it in writing, you have learned something valuable at no cost.
• Negotiate the vehicle price and the trade-in separately. They are two transactions. Combining them is how a good trade number hides a bad car price.
• Arrange your own financing first. Walk in with a pre-approval. You can always take the dealer’s rate if it beats yours, and now you will know whether it does.
• Ask which add-ons are already installed versus which are optional. Installed is harder to remove — but the price of an installed item is still negotiable.
• Decline politely and specifically. “Remove the paint protection and the theft product, then send me the revised out-the-door number.”
• Be willing to leave. The car is not rare. There were 688,000 units in the $30,000–$40,000 range alone in June, carrying 70 days’ supply.