Floorplan financing is the revolving credit facility that dealerships use to finance new vehicle inventory. When a vehicle arrives at the dealership from the OEM, the floorplan lender pays the OEM invoice and adds the amount to the dealership's floorplan balance. The dealership pays interest on the balance (the floor charge) for as long as the vehicle remains in inventory. When the vehicle is sold, the dealership uses sale proceeds to pay down (or pay off) the floorplan balance for that unit.
For most dealerships, floorplan represents the largest single liability on the balance sheet and the largest single category of interest expense. A typical mid-size dealership group with $30M in new vehicle inventory carries $25M to $28M in floorplan balance at any point, generating $1.5M to $2.5M in annual floor plan interest depending on rate levels.
Despite its financial significance, floorplan management in many dealerships is handled through a combination of daily statements from the floorplan lender, a manual tracking spreadsheet, and an AP process for curtailment and payoff payments that is largely disconnected from the vehicle sales and inventory systems that should be driving it.
How Floorplan Creates AP Complexity
Daily interest accrual and floor charges
Floorplan interest accrues daily on each vehicle's outstanding balance. The daily interest rate is applied to the invoice value of the vehicle. Floor charges, which are the periodic invoice from the lender for accumulated interest, arrive monthly and must be allocated to the correct inventory units.
In a manual AP process, the floor charge invoice is received, entered into the AP system as a lender payment, and coded to interest expense. The allocation of the charge to specific vehicle units for unit-level profitability tracking is either done manually in a separate spreadsheet or not done at all. Without unit-level allocation, the dealership cannot accurately calculate the true cost of holding each vehicle in inventory.
Curtailment payment schedules
Floorplan agreements typically require curtailment payments: mandatory partial paydowns of a vehicle's floorplan balance after the vehicle has been in inventory for a defined period (often 90 or 180 days). Curtailment requirements prevent the dealership from carrying aged inventory indefinitely on the floorplan without reducing the principal.
Missing a curtailment deadline triggers penalty fees and can accelerate the lender's right to require full payoff. In a manual process, curtailment schedules are tracked in a spreadsheet updated by whoever manages the floorplan relationship. Under normal dealership operating conditions, aged inventory vehicles are identified late and curtailment payments are made reactively rather than proactively.
Payoff timing and the interest optimization problem
When a vehicle is sold, the floorplan balance for that unit must be paid off. Interest continues to accrue until the payoff is received by the lender. A sale that closes on a Monday but whose floorplan payoff is not processed until the next payment run on Thursday continues to accrue interest for three additional days.
At scale, the accumulated interest cost from payoff timing delays is material. A dealership selling 100 new vehicles per month with an average per-unit payoff of $35,000 and a daily interest rate of 0.025% (roughly 9% annual) incurs approximately $875 per day of unnecessary interest if the average payoff timing is one day late. Tightening payoff timing from an average of 2 days to same-day saves approximately $26,000 annually.
Integrating Floorplan Into AP Automation
Vehicle sale triggers automated payoff payment
The most impactful AP integration is linking the vehicle sale confirmation in the DMS to an automated floorplan payoff payment. When a sale is finalized and the finance office books the deal, the AP platform generates the payoff payment for the corresponding vehicle's floorplan balance and routes it for approval.
This eliminates the manual step where the AP team matches the day's sales to the floorplan balance and initiates payoffs. It reduces payoff timing from days to hours and captures the interest savings that come from same-day or next-day payoff execution.
Curtailment schedule automation
The AP platform should maintain a live curtailment schedule based on vehicle inventory age data from the DMS. When a vehicle reaches the curtailment trigger date, the AP platform generates a payment task and routes it for approval. The payment is not reactive to a lender notice. It is proactive based on the dealership's own inventory age data.
This approach eliminates late curtailment fees and gives the finance team advance visibility into upcoming curtailment obligations for cash flow planning purposes.
Floor charge reconciliation
When the monthly floor charge invoice arrives from the floorplan lender, the AP platform should match it against the internally calculated accrual based on the daily balances and the applicable rate. A material variance between the lender's floor charge and the internal accrual warrants investigation before payment is released.
Floor charge errors in the lender's favor are not rare. Vehicles that were sold but whose payoffs were delayed, vehicles whose rates were incorrectly applied, and vehicles that were on demonstration or dealer use status and therefore exempt from floor charges all represent potential billing discrepancies. Systematic reconciliation before payment catches these rather than relying on a post-payment claim process.
The CFO's View
A dealer CFO who has integrated floorplan management into the AP platform can see at any moment the total floorplan liability by vehicle category, the accumulated interest for the current period, the upcoming curtailment obligations, and the vehicles whose payoffs are pending following recent sales. This is the view that supports accurate cash forecasting and floorplan line management conversations with the lender.
The alternative is a combination of lender statements, a spreadsheet, and the sales manager's awareness of what sold this week. That combination is not adequate for a $25M to $30M revolving credit facility that represents the largest liability on the balance sheet.
