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Floorplan: the loan on the cars

There is a second loan involved in buying a used car and it is not yours. Before any dealer arranges financing for you, somebody financed the car itself — and the terms of that arrangement quietly explain the lot's pricing, its patience, and how long it takes to hand you a title.

Drive Thru Deals · September 17, 2026 · 6 min read

A floorplan — sometimes called a floor plan line or inventory finance — is a revolving credit line secured by the vehicles themselves. It is not one loan for the business. It is a loan per car: you draw against the line when you buy a unit, that unit carries its own balance and its own clock, and you repay that specific advance when that specific car sells. Twenty cars on a lot can mean twenty separate live advances with twenty different ages.

Floorplan lines are written by banks, by specialty finance companies, by lenders affiliated with the auctions themselves, and for franchise stores sometimes by a manufacturer's finance arm. Every one of them writes different terms. That is not a hedge to avoid being specific — it is the most important single fact about the subject, and we will come back to it.

One advance, followed around the loop

Draw day 0

You buy a car and the lender pays for it — frequently paying the auction or the selling dealer directly rather than routing money through you. The advance is generally a percentage of some measure of the car's value: the purchase price, a book value, whichever the lender's policy uses. Whatever it doesn't cover comes out of the dealer's own cash.

Where it bites: advance rates are not 100%. Buy a car the lender values below what you paid and the shortfall is yours that day, which is a quiet check on overbidding.

The title goes to the lender immediately

The lender secures the advance against the vehicle, which in practice means it holds the title or a lien position on it, along with a trust receipt naming the unit. The dealer physically possesses a car whose title it does not hold free and clear.

Where it bites: this is the real reason a title can take days after a sale. The floorplan advance has to be paid off and the title released before it can be assigned to you or your lender.

Interest accrues, daily, per unit every day

Not monthly, not on a statement cycle you can game — daily, on each car, from the day it was drawn. Many lines also carry per-unit fees at draw and at each extension. Weekends count. Holidays count. The day nobody came in counts.

Where it bites: it is small enough per day to ignore and large enough per quarter to matter, which is exactly the profile of a cost businesses handle badly.

Curtailment on a schedule

Lines typically require principal paydowns on units that haven't sold by certain ages — a share of the advance at one milestone, more at the next, and eventually the unit paid off entirely whether or not it has found a buyer. Intervals and percentages differ from lender to lender.

Where it bites: this is the mechanism that turns an aging car from an irritation into a cash demand on a specific date. It is the hidden reason a price on a stale car moves, and it moves on the lender's calendar rather than the dealer's mood.

The floor check unannounced

Somebody arrives, without warning, with a list of every unit the lender has financed, and walks the lot matching VINs to that list. Every car must be physically present, or accounted for with documentation — sold and paid off, at a shop, out on a demonstration with a record.

Where it bites: a car that is gone and not paid off is "sold out of trust," which is the single fastest way to lose a line. At small-dealer scale these agreements are usually personally guaranteed, so it is not only the business that is exposed.

Payoff within days of the sale

When the car sells, the advance is due — typically within a short window after the sale, not whenever the dealer's own money arrives. That timing gap is real: a financed retail sale is usually funded by the customer's lender several business days after delivery, while the floorplan payoff clock started at delivery.

Where it bites: the dealer is frequently paying off a car before being paid for it, out of working capital. A thin operator feels this every single week.
↻ credit becomes available again — and the cycle restarts

The only arithmetic on this page

daily carry = advance × annual rate ÷ 365

That is the whole calculation. We are not going to put a rate in it, because floorplan pricing varies by lender, by dealer, by credit profile and by the week, and a number written here would be quoted back as though it were a market fact. Run it with a rate you have actually been offered.

As a purely illustrative shape: on a $20,000 advance, every full percentage point of annual rate is roughly 55 cents a day on that one car — about $17 a month, or about $50 over a quarter. Multiply by the rate you're paying, then by the number of cars, then by the number of days they sit, and the significance of "it's been here a while" becomes obvious.

What varies — which is most of it

Advance rateWhat share of the car the lender will fund, and against which value measure.
Interest basisFixed, or floating over an index; charged daily, billed monthly.
Per-unit feesOrigination or administration charges at draw, and sometimes at extension.
Curtailment scheduleWhen paydowns start, how large they are, and when a unit must be retired entirely.
Payoff windowHow many days after a sale the advance is due.
Audit frequencyHow often someone counts the cars, and what documentation satisfies an absence.
GuaranteesWhether individuals stand behind the line personally — at small scale, usually yes.

Any dealer who has a line knows all seven of their own numbers. None of them are ours to publish and none of them are universal.

What it explains about a lot

Why old cars get repriced rather than defended. The lender's calendar arrives whether or not the dealer has made peace with being wrong. The public form of that is a windshield number changing, which is the subject of why a price changes while it sits.

Why a slow car is worse than it looks. Interest is the small part. The large part is that capital is finite: money tied up in the car nobody wants is money that is not available on Tuesday morning when the right car crosses the block. The true cost of a stale unit is the unit you couldn't buy — and on a six-car lot, one sixth of the business is standing still.

Why "just let me take it home for the weekend" is complicated. Every car on the property is on somebody's list, and that list gets checked without notice. A casual arrangement that would be friendly and harmless in any other retail business is, here, a compliance problem.

Why the title conversation matters. Ask is the title in hand, and if not, when? There are perfectly ordinary reasons for a delay — a recent purchase, a trade with a lienholder, a payoff in transit. There are also bad reasons, and a dealer who cannot answer plainly is telling you something about the state of their line.

We are not describing somebody else's business here. Holding inventory on borrowed money is how lots our size operate, ours included, and every pressure above is one we work under. It is also a healthy one: a structure that charges rent on indecision is a reasonable defense against a lot full of cars that should have gone back to the auction months ago.

If you're buying. Two questions, both ordinary and both revealing: how long has this car been on the lot? and is the title in hand? Neither is confrontational, both have factual answers, and the manner in which they are answered is worth as much as the answers.

Floorplan terms — advance rates, interest, fees, curtailment schedules, payoff windows, audit practices and guarantees — are set in individual agreements and vary widely by lender and by dealer. Nothing here states the policy of any particular lender, auction or finance company, and no rate quoted or implied on this page should be treated as a market figure. The single illustrative calculation above is arithmetic, not a quotation.

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