Cash vs Floor Plan: Thinking Through How to Fund Inventory

The dealer principal is staring at two numbers. One is the auction pack that will land Friday. The other is a cash balance that could pay for it outright — and also has to cover payroll, a tax estimate, and a recon week that always runs hotter than planned. The floor-plan line has room. Drawing it feels like paying rent on cars. Paying cash feels like being "smart" until the next opportunity shows up and the account is empty. Cash vs floor plan is not a personality test. It is a working-capital design for how to fund inventory.

Stores get this wrong in both directions. Some independents stay all-cash long after the lot has outgrown the checking account, then skip good cars because a slow week trapped their money in aged units. Some stores floor everything, including cheap flips that will be gone in four days, and then wonder why the plan fees and curtailments eat the skinny gross. The right mix depends on turn speed, unit cost, cash reserves, and how honest you are about days-to-turn.

This article is for dealer principals and general managers who already have (or are considering) a line, and for all-cash independents who are trying to decide whether to stay that way. It is a thinking framework, not lender advice and not legal advice. Confirm terms, covenants, and title requirements with your lender and counsel.

Separate Cash vs Floor Plan Into Three Decisions

"Should we floor cars?" is too big. Split it.

Decision 1: What cash must never go into cars

Before any funding philosophy, write a cash floor: payroll coverage, tax reserves, insurance, rent, and a recon float. Inventory does not get to spend that number. All-cash lots that skip this step are not conservative. They are one slow month from being unable to take a trade. Floor-plan lots that skip it still bounce checks; the line does not pay the light bill.

Decision 2: Which units are short-cycle vs. long-cycle

Short-cycle units (true flips, wholesale, cars you already have a buyer for) often do not justify plan fees if you can pay cash without breaking Decision 1. Long-cycle retail units (higher cost, slower segments, certified pipelines) are where a line earns its keep, because they would otherwise freeze cash for weeks. Your sold history tells you which patterns are which. If you do not know your days-to-turn by segment, you are not ready to choose a funding mix. You are guessing.

Decision 3: What happens when turn slips

Floor plan has a known pain: interest and curtailments. Cash has a quieter pain: opportunity cost and skipped buys. Pick the pain you can manage operationally. If your aged process is weak, a line will amplify the mess. If your cash buffer is thin, all-cash will cap growth below what the market would support. Funding cannot fix a broken turn. It can only choose who you pay while the car sits.

When Cash Funding Fits, and When It Starts to Hurt

All-cash is a valid design. It is not automatically virtuous.

Cash is a strong fit when

• The lot is small enough that a few units do not empty operating cash.
• Turns are fast and recon is short, so money recycles inside the cash floor you wrote.
• The principal wants maximum simplicity: no curtailment calendar, no audit days, no plan insurance riders.
• You are still proving a mix plan and do not want a line that makes overbuying easy.

Cash starts to hurt when

• You skip packs or trades because the checking account is in the cars, not because the cars are wrong.
• A single aged truck represents a dangerous share of working capital.
• You cannot take a good trade without wholesaling a retail unit you still wanted.
• Growth is the strategy and sales-pace acquisition is already capped by cash, not by demand.

Opportunity cost is real even when interest is zero

Cash in a 45-day sedan cannot buy the crossover that would have sold in 15 days. Compute that in units, not in a made-up interest rate: how many repurchase patterns did you pass on last month because money was stuck? If the answer is "several," cash is no longer cheap. It is illiquid. Put a holding-cost number even on cash units using the method in floor plan cost per day: a simple holding cost worksheet, with interest at zero and overhead still counted.

When Floor Plan Fits, and How to Keep It From Funding Bad Habits

A line is a tool for matching the duration of the money to the duration of the car.

Floor plan is a strong fit when

• Average unit cost and lot size would otherwise trap too much cash.
• You have a written mix plan and a buy cap, so the line cannot become a hunting license.
• You can staff title, payoff, and audit requirements without chaos.
• You understand curtailments and have a policy for units that approach them, written before the first aging unit hits a curtailment window.

Floor plan hurts when it hides slow process

Interest feels small per day and large in a quarter. That is how unlisted days and recon queues get tolerated. If you draw the line, you also need:

• A recon map with owners.
• Front-line ready standards that include listing, not just a wash.
• Same-day sold payoffs so you are not paying for funded cars that already left.
• A rule that overweight mix segments are no-bid even if the line has room.

The line should fund the plan. The plan should not expand to fill the line.

Hybrid designs most lots actually need

Many stores should not be 100% either:

• Cash the flips, floor the keepers. Cheap, fast units stay off the plan. Higher-cost retail units go on it.
• Cash up to a cap, floor the rest. Example structure: keep N days of operating cash plus a recon float, then draw. Fill N from your books, not from a round number.
• Seasonal draws. Use the line when you intentionally build AWD or truck inventory before a season, then shrink back to cash when that inventory turns.

Write the hybrid in a paragraph the bookkeeper can follow. Informal "we floor the expensive ones" becomes "we floored whatever the buyer bought on Thursday."

Fees, audits, and operational load

A line is not only interest. It is insurance, inspection days, title custody rules, and payoff timing. Independent lots with one office person should count that labor. If the administrative load would break the office, staying cash — or a smaller line — may be the rational choice even if interest math looks fine.

Run the Cash vs Floor Plan Comparison on Your Own Lot

Use a one-page scenario, clearly labeled as illustrative in method.

A four-line comparison

For a typical month of buys:

1. All cash: cash tied up = average inventory × average cost. Note skipped units if cash would have breached the operating floor.
2. All floor: interest + fees estimated from your quote or current statement, plus curtailment risk on aged units.
3. Hybrid: cash on units expected to turn inside a short window; floor on the rest.
4. Stress: same three designs if turn slows by a chunk of days (use a delay you have actually lived through, not a horror story).

Pick the design that still lets you buy the mix you intended in the stress case without breaking payroll cash. That is the adult answer. The design that only works in a perfect month is not a design.

Turn speed is the real interest rate

Funding debates often ignore the operational lever that dwarfs the rate: how fast a unit goes from purchase to advertised to sold. Compressing recon and listing can make a modest line cheap, or make cash recycle fast enough that you never need a larger one. Funding is not a substitute for mapping recon or for posting discipline.

Independent vs. franchise notes

Franchise stores often already have a plan and manufacturer-related constraints; the live question is how used units sit next to new. Independents and BHPH lots may be choosing a first line. BHPH has a second funding problem on the note side that this article does not cover. Do not copy a franchise structure onto a ten-car independent lot, or the reverse.

How PostToMarket Automates This

Cash vs floor plan is a capital decision. The operational failure that makes either choice expensive is slow, unowned inventory: cars you have already paid for (in cash or on plan) that are not in front of buyers. PostToMarket does not replace a lender and does not move money. It does help the inventory you funded start working sooner.

Get funded units into a selling system the day you own them

• Capture from auction and wholesale sites so a purchased VIN is a draft before it hits the lot.
• CSV and Excel import with a row-level error log for pack lists.
• Unlimited vehicles in inventory on every plan, which matters when you are tracking cash flips and floored keepers in one place.

Reduce the days you pay for silence

• AI listing titles and descriptions from specs, edited before posting.
• Photo picker, per-rep queues, and manager assignment so ready units are owned.
• Human-like delays and server-enforced daily limits so a big intake week does not become a burst. PostToMarket is not affiliated with, endorsed by, or sponsored by Meta.

Keep the funded list honest

• Statuses (draft, posting, posted, sold, failed).
• Mark as sold and archive so payoffs and cash recycling are not waiting on a listing that should already be dead.
• Team analytics and a leads inbox so you can see whether the inventory you chose to fund is actually producing conversations.

No tool can guarantee faster funding cycles. Faster, cleaner exposure is the part of the cycle you control.

Fund the Mix You Can Turn, Then Turn It

Cash vs floor plan is a design for how to fund inventory, not a badge of conservatism or sophistication. Protect operating cash first. Match short-cycle units to cash when you can. Use a line for longer-cycle retail when the lot would otherwise freeze. Write a hybrid if that is what the books say. Then attack days-to-turn, because that is the rate you actually pay.

PostToMarket is how funded cars leave the notebook and reach a queue: capture, unique copy, owned posting, and same-day sold hygiene. The Starter plan is $59 per month for a solo seller or independent lot with one login. The Dealership plan is $299 per month for up to 13 team logins.

Start your 10-day free trial through secure Stripe checkout. Load the inventory you already funded, post it at a disciplined pace, and cancel anytime.