How Many Cars Do You Have to Sell to Make $100K? The Actual Math
At $400 to $600 of commission per unit, $100,000 a year takes 14 to 21 units a month — 170 to 250 a year. NADA puts the average new-vehicle salesperson at 102 to 114 units a year. So $100K isn't the average job. It's close to double it, unless your average check runs well north of $600.
That's the whole answer, and every article on this search stops one step short of it. They give you a units number and leave. The number is useless without the two things underneath it: what a unit actually pays you, and how many buyers you have to get in front of to produce that many units.
So here's the chain, all the way down, with sources where sources exist and assumptions labeled as assumptions.
How many units does the average salesperson actually sell a month?
Fewer than the internet tells you, and it's measured rather than guessed.
NADA Data 2025, the National Automobile Dealers Association's annual financial profile of franchised new-car dealerships, tracks retail sales per salesperson every year. Across 2018 to 2025 the figures land in these bands:
| Desk | Units per salesperson, per year | Works out to, per month |
|---|---|---|
| New-vehicle salesperson | 102 – 114 | ~8.5 – 9.5 |
| Used-vehicle salesperson | 137 – 148 | ~11.5 – 12.5 |
Nine to twelve a month. That's the middle of the industry, not the bottom of it.
It's also an annual figure divided by twelve months that are nothing like equal. On the Census Bureau's published seasonal factors for auto retail, a normal March runs about 8% above trend and a normal January about 12% below. Worth knowing before you turn an annual number into a monthly quota: the best and worst months for car sales.
The same report puts average weekly earnings for new light-vehicle dealership employees at $1,619 nationally — about $84,000 a year. So you're asking how to earn meaningfully more than the average person in the building, selling meaningfully more than the average rep on the floor. Fine goal. Not a small one, and anyone answering "just sell 10 a month" has not done the arithmetic.
What does one unit actually pay you?
You already know your own plan, so this section is short. The chain runs: sale price minus dealer cost is front-end gross, the store deducts a pack off the top, your percentage applies to what's left, minis catch the deals where nothing survives, back-end pays if your plan touches F&I, and a unit bonus lands at volume tiers.
The part that matters for this model is the number that falls out at the end: your average check per unit, across good deals and minis together, over a full month. Not your best deal. Not the one you tell people about.
We use $400 to $600 as the working range through this article. It's deliberately conservative, and autobook.io's owner is blunt that it moves a lot: often a lot higher, depending on the rep's talent, the store, and the desk. A rep at a luxury store with a back-end split is on a different plan than someone grinding out minis on new economy cars.
Pull three months of pay stubs, divide total commission by total units, and use your own number. If you want the full teardown of where the money goes between sticker and your check, read your pay plan, read like a manager.
How many units is $100,000?
Straight division, at five different average checks:
| Your average check per unit | Units per year | Units per month | Versus the NADA average |
|---|---|---|---|
| $400 | 250 | ~21 | More than double a new-vehicle rep |
| $500 | 200 | ~17 | Roughly double |
| $600 | 167 | ~14 | Well above average |
| $800 | 125 | ~10 | Above a new-vehicle rep, just under used |
| $1,000 | 100 | ~8 | At or below average |
Look at the two ends. At $400 a copy you need 21 units a month, every month, for twelve months. At $1,000 a copy you need eight — which most of the industry already does.
That's the finding nobody publishes: $100K is at least as much a gross problem as a volume problem. Two hundred dollars of average check is worth seven units a month to you. Seven units a month is an enormous amount of extra work. Two hundred dollars of average check is a different mix of inventory, a plan with a back-end split, and not giving away the last $300 on a deal that was already closed.
Pack and mini floors are what cap that lever, which is exactly why it's worth understanding your plan before you decide the answer is "work harder."
How many at-bats does that take?
Units are an output. The input is opportunities, and this is where the arithmetic gets uncomfortable.
Foureyes analyzed more than 8 million sales opportunities from the first half of 2025 and put the overall 30-day close rate across dealers at 16.2%. Walk-ins close fastest — 83.7% of those sales happen inside three days. Internet opportunities take longer, with 7.5% still buying between day 15 and day 30.
Call it 15% on the low side and 25% if you're genuinely good and mostly working floor traffic. Here's what each target needs, assuming 22 selling days:
| Units per month | Close rate | Opportunities per month | Per selling day |
|---|---|---|---|
| 14 (at $600 a copy) | 15% | 93 | 4.2 |
| 20% | 70 | 3.2 | |
| 25% | 56 | 2.5 | |
| 17 (at $500 a copy) | 15% | 113 | 5.2 |
| 20% | 85 | 3.9 | |
| 25% | 68 | 3.1 | |
| 21 (at $400 a copy) | 15% | 140 | 6.4 |
| 20% | 105 | 4.8 | |
| 25% | 84 | 3.8 |
Four real opportunities a day, every day you're on the schedule, with no bad Tuesdays and no rained-out Saturdays. On most floors the rotation doesn't hand you four. It hands you what it hands you, split with everyone else wearing the badge, and the ad budget buys the same traffic for all of you.
Run the number for your own store honestly. Count the ups you personally got last month — not the store's traffic, yours — and divide your units by it. If the arithmetic says you need meaningfully more at-bats than the floor hands you, no script fixes that. You need more at-bats.
Where do the extra at-bats come from?
Four places, and only one of them is free and entirely yours.
Repeat and referral is the best answer and the slowest. It compounds off the deals you have already delivered, which is no help in month one of a $100K year.
Being handed more of the store's traffic means winning the rotation, which is a management decision, not yours.
Buying opportunities yourself is expensive, and reliably more expensive per sale than people assume before they divide a month of spend by a month of deliveries. Do that division for whatever you or the store actually spends; the full arithmetic is in what a buyer actually costs per sale.
Free channels you control is the fourth, and on the used side it's mostly Facebook Marketplace. On January 30, 2023 Meta stopped supporting vehicle listings from business Pages — the Vehicles and Manage Inventory tabs came off dealership Pages, as reported at the time by CBT News. Personal profiles were never touched. The channel did not close; it moved onto the profile of whoever on the floor will work it. Ricky at Overturf Kia described his store in one line: "seven sales guys and I'm the only one that uploads."
What does Marketplace add to the model?
Across vehicles posted through autobook.io, about one in nine ends up sold — roughly 11% platform-wide, and it updates automatically rather than being a fixed marketing figure. No other vendor in this category publishes a post-to-sold ratio at all.
Read that ratio carefully, because it's not the close rate above. It's vehicles posted divided by vehicles sold, a different denominator entirely. One listing isn't one opportunity; a single unit can generate five conversations or none.
The gap between the industry average — nine to twelve a month — and a 17-unit pace is five to eight units. autobook.io's $99 Pro plan is sized for 8 to 12 extra sales a month, which is plan sizing rather than a promise — but even a few units off a channel most of the floor isn't working is the difference between the average year and the one you're asking about. Your ratio will be your own.
Two honest corrections before you build a budget on it. The money arrives late. A Marketplace listing behaves like an internet opportunity rather than a walk-in — the Foureyes data above has 7.5% of internet opportunities still closing between day 15 and day 30, and a listing can sit a while before anyone messages at all. Units you post in March are frequently an April check, which matters if you're counting a calendar year. The second correction is that consistency beats selection. A channel you work three days a month produces about like a channel you do not have.
The rest of the shape: the salesperson's Marketplace playbook covers profile setup, what to post and how many, and how to sell more cars as a salesman covers the weekly routine.
What the software does and does not do
autobook.io imports your store's inventory from most dealership website platforms, writes the descriptions, posts through your own Chrome browser on your own logged-in account, cross-posts to groups you pick once, and renews live listings. Photo re-rendering is a paid opt-in step at 2 credits an image, on the units you choose — never automatic, never every photo.
You still pick the units. You still answer every buyer message yourself, in Facebook Messenger, roughly 40 minutes a day. There's no inbox in the product, no CRM, no AI replies, no notifications. And you still close, which is the part nobody was ever going to automate for you. It removes the grind, not the job.
Plans run from $99 a month, US only, covering cars, trucks, RVs, trailers and motorcycles. You're responsible for the accuracy of your listings and for following Facebook's Commerce Policies and your local dealer-advertising rules. The listings post from your account. The compliance is yours.
The uncomfortable version
Two hundred units a year is four a week, every week, including the week your kid is sick and the week nobody walks in because it rained for six days. There is no version of this where the number is small.
What you can change is which lever you pull. Everybody's instinct is volume, because volume feels like effort and effort feels like the answer. Look at the table again: moving your average check from $400 to $600 removes seven units a month from the target. That is a plan conversation and an inventory-mix conversation, and it is cheaper than seven more deliveries.
Pull both. Understand what your plan actually pays before you decide how many units you need, then go find at-bats in the one channel management cannot reassign at the Monday meeting.
Frequently asked questions
How many cars do you have to sell to make $100K a year?
At a $400 to $600 average commission per unit, about 170 to 250 units a year — roughly 14 to 21 a month. At $1,000 a unit it drops to 100 a year. The units number is meaningless until you know your own average check, so divide three months of commission by three months of deliveries and start there.
How many cars does the average salesman sell a month?
NADA Data 2025 puts average retail sales per new-vehicle salesperson between 102 and 114 units a year across 2018 to 2025, and per used-vehicle salesperson between 137 and 148. That is roughly 8.5 to 9.5 a month on the new side and 11.5 to 12.5 on the used side.
Is selling 20 cars a month good?
Yes — it is roughly double the new-vehicle industry average and comfortably above the used-vehicle average. At a $400 to $500 average check, 20 a month sits inside the 17-to-21 band that produces a $100K year, which is why that number gets quoted so often.
How many opportunities do I need to sell 15 units a month?
At a 20% close rate, 75. At 15%, 100. Foureyes put the overall 30-day close rate across 8 million-plus opportunities in the first half of 2025 at 16.2%, so 15 units sits somewhere around 90 to 95 real at-bats a month — a little over four a selling day.
Can Facebook Marketplace realistically get me to $100K?
It can close part of the gap, not all of it. About one in nine vehicles posted through autobook.io sells, and the $99 Pro plan is sized for 8 to 12 extra sales a month — plan sizing, not a guarantee. It also arrives slowly, because a listing can sit for weeks before the buyer who wants that unit turns up. Treat it as an additional channel you control, not a replacement for the floor.
What is the fastest way to raise my per-unit average?
Understand the plan first. Pack comes off before your percentage, minis set a floor that has nothing to do with your effort, and volume tiers mean the 15th unit can pay more than the 14th. Which of those you can actually move is a conversation with your manager, and it is worth having before you commit to 250 deliveries. Start with the pay-plan teardown.