Vehicle sales & auto services
Books and taxes for self-serve and in-bay car washes.
Coin collections, card readers bolted onto old bays, vacuum quarters, and a boiler that finally gave out all move through this business differently. Gus sorts every dollar into its own line, an accountant checks every transaction, and you get one number a month.
- From $197 a month
- An accountant on every transaction
- Cancel whenever
September netted $7,200. The boiler replacement stayed out of your regular repairs line since that one is real equipment, not routine upkeep.
- Coin vault countBay cash sales
- Square card batchBay card sales
- City water and sewerWater and sewer
- ABC Vending coin repairEquipment maintenance
- Bay soap and wax refillWash chemicals
Why your books are different
A self-serve wash's books go wrong around the cash, not the equipment.
A generalist sees deposits and bills. Your business runs mostly unattended, collects a lot of quarters, and swings hard with the seasons. When the books do not track cash and the season honestly, a normal winter looks like a crisis.
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1
Cash never all makes it to the bank
Quarters and bills collected from the bays and vacuum machines sometimes get spent on supplies or a quick errand before they ever reach a deposit, so real income disappears from the books without anyone deciding to hide it.
What we doAsks for a simple collection log so every coin count gets counted as income, whether it hits the bank that day or later. -
2
Vacuum and vending income gets ignored
Quarters from the vacuum stations and air freshener machines feel like pocket change and often never get tracked separately from the wash bays, so a real slice of revenue goes unmeasured.
What we doKeeps vacuum and vending income in its own line so it shows up as the real money it is. -
3
A slow winter looks like a failing business
Outdoor self-serve bays see a real drop in cold weather, and without context that seasonal dip can look like the business is dying instead of doing what it does every year.
What we doTracks the pattern month over month so a normal winter dip does not get mistaken for a real decline. -
4
Equipment repairs and upgrades get lumped together
A coin mechanism repair and a full pump and boiler system replacement land in the same maintenance bucket, so a major investment in the wash looks like routine upkeep.
What we doFlags big equipment purchases apart from repairs and gets the accountant's call on how to write them off. -
5
Card reader fees eat into an already thin ticket
Retrofitting a token-only bay with a card reader brings in more customers, but the processor's fee is easy to lose track of against a wash that might only cost a few dollars to begin with.
What we doTracks card processing fees against bay sales so the real take-home per wash is clear.
Your categories
The categories Gus keeps for a self-serve or in-bay wash.
Set up once for how coins, cards, and vacuum income come in. You never pick a category. He does, and an accountant checks it.
Money in
- Bay cash salesQuarters and bills collected from the coin boxes on wash bays.
- Bay card salesCard swipes from readers retrofitted onto the bays, run through a processor like Square.
- Vacuum and vendingCoin and card income from vacuum stations, air fresheners, and towel dispensers.
- In-bay automatic salesSingle-bay drive-through washes paid per cycle by card or token.
Money out
- Water and sewerThe utility cost of running bays and rinse cycles all day.
- Wash chemicalsSoap, wax, and tire shine dispensed through the bay's own system.
- Equipment maintenanceCoin mechanisms, pumps, boilers, and hoses.
- Card processing feesWhat a processor like Square keeps on retrofitted bay card readers.
- UtilitiesElectricity and gas for boilers and lighting, especially in colder months.
- Security and lightingCameras and lighting for an unattended site.
- Vending restockingAir fresheners, towels, and other items sold from machines.
What we watch for you
- Cash versus card share
How much of the month came in as coins and bills versus card swipes, since cash is easier to lose track of.
- Revenue per bay
What each individual bay brings in, so a broken or slow bay does not go unnoticed.
- Vacuum and vending share
How much of the month's income came from add-ons instead of the wash itself.
- Utility cost per month
Water, sewer, and power against revenue, since an unattended site runs whether it is busy or not.
Ask Gus
Things self-serve wash owners ask Gus.
Text him like you would text anybody. He answers in plain English, and when a question is above his pay grade, an accountant looks and gets back to you.
Send me what you remember and the deposit slips you do have. I will get as close as I can and ask you about anything that still looks off.
No. I track the pattern year over year, so a normal winter dip reads as the season, not a decline in the business.
No, that is real equipment. I kept it separate from routine maintenance so the accountant can look at writing it off.
The tax side
The tax side of a self-serve or in-bay car wash.
Most of what goes wrong here is honest cash tracking and knowing equipment from upkeep. Getting both right is what makes the return come out clean.
What your return has to get right
Your accountant signs it, so it gets done right the first time.
- Cash income still countsCoins and bills collected from the bays are taxable income the moment they are earned, whether they are deposited that day or a week later.
- Equipment and Section 179Pumps, boilers, and bay equipment bought for the business can usually be expensed the year you buy them, up to $2,560,000 under Section 179, with 100 percent bonus depreciation for property acquired after January 19, 2025.
- Self-employment tax on profitA sole proprietor or partner pays 15.3 percent self-employment tax on business profit, up to the $184,500 Social Security wage base for 2026.
- The pass-through deductionMost owner-operators can take up to 20 percent of business profit off their taxable income. It comes out right when cash income is tracked honestly all year.
Deductions self-serve and in-bay car washes miss
Your bookkeeper knows what to look for in your statements. You never have to.
- Coin mechanism repairs
- Boiler and pump maintenance
- Bay soap and wax refills
- Card reader processing fees
- Water and sewer bills
- Security camera systems
- Site lighting
- Vending machine restocking
- Pressure washer hoses and wands
- Snow removal for the lot
- Bill changer maintenance
- Signage and pricing decals
General information about 2026 federal rules, not advice for your business. Your accountant looks at your actual numbers before anything gets filed.
All year, not just April
A self-serve wash's year, kept every month.
Cold weather slows the bays down every year on schedule. Your taxes come on a schedule too. Your team keeps you ahead of both. Every month in between, your bookkeeper closes the books and speaks up the moment something looks off.
- January
Plan the year
Last year's return gets started, and a monthly set-aside is planned ahead of the slower winter months when outdoor bays see less traffic.
- April
Filed. Done.
Your return is filed and signed as bay traffic starts picking back up for spring. No surprise bill, since the set-aside has been running since January.
- July
Halfway check
Where you stand at midyear, what you will owe, and how summer traffic compares to the winter dip Gus already expected.
- October
Before the cold stretch
Gus looks at any equipment worth replacing before winter and what a slower month does to the year's number.
What you get
What you pay depends on what your business needs, and it does not move after that, busy season or slow. No hourly bills, no surprise invoices, no setup fee.
Book a call- Monthly bookkeeping
Every transaction sorted into categories set up for self-serve and in-bay car washes. You never categorize a thing.
- An accountant checks every transaction
Real review, every month, before your books close. Not a spot check.
- Your business tax return, filed
Prepared, reviewed, and signed by that same accountant every year.
- The monthly number
What you made, what you spent, what to set aside for taxes.
- Your own bookkeeper
A real person assigned to your business, in the app whenever you need them. No hold music.
- On your books all year
Every month, not just in April. Your team speaks up whenever something is worth your attention.
- Cancel any time
No contract. No cancellation call. Your books are yours.
Straight answers
Questions self-serve wash owners ask first.
Half my income is quarters. How does Gus track that?
Send him your coin collection counts and deposit slips, even if the cash sits a few days before it hits the bank. He asks about anything that looks off.
Does a slow winter mess up my year-end numbers?
No. Gus tracks the seasonal pattern so a normal cold-weather dip does not get mistaken for a real decline in the business.
I have both self-serve bays and one automatic bay. Does that complicate things?
No. Gus keeps self-serve, in-bay automatic, and vacuum income in their own lines, so you can see how each one is doing.
We just put in card readers. Do we still track cash separately?
Yes. Cash and card sales stay in their own categories so you can see how much of your business runs on coins versus card swipes.
What happens when I replace major equipment like a boiler?
Gus flags it apart from routine repairs and gets the accountant's call on how to write it off, instead of it disappearing into a maintenance line.
My last set of books just says cash deposits with no detail. Can that be fixed?
Yes. Send what you have and Gus rebuilds the categories going forward, so cash, card, and vacuum income are finally split out.
Is a real accountant checking my books?
Yes. You get your own bookkeeper, Gus does the first pass on every transaction, and an accountant checks every one before your month closes. That same accountant prepares, signs, and files your business return. Goatkeeper is not a CPA firm, and we never pretend a person looked when they did not.
What does it cost, and can I cancel?
It starts at $197 a month, depending on what your business needs. No setup fee, no hourly bills, no contract. Cancel any time from the app, and your books go with you.
More in vehicle sales & auto services
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What makes a bookkeeper worth paying for Every business we keep books for
Book a call
Pick a time. That's the whole signup.
Fifteen minutes with a real person on our team. They look at where your books are, tell you straight what it takes to get caught up, and get you set up on the spot if it fits.
- $197 a month to start
- An accountant on every transaction
- Cancel whenever