A mobile groomer who nets $130 a dog and does six dogs a day looks, on paper, like she's clearing $780 in daily revenue. Run the same day through a proper per-appointment cost model — fuel, water, propane, generator hours, product, and a slice of the $35,000 van sitting in the driveway — and the real number is often 30–40% lower. The gap isn't fraud or bad luck. It's a bookkeeping blind spot that's specific to running a business where the "shop" has a transmission, a fuel tank, and a maintenance schedule.
Mobile pet grooming is one of the fastest-growing segments of the pet services industry, and it's easy to see why: no commercial lease, a 20–40% price premium over storefront grooming, and a built-in convenience pitch that sells itself to busy pet owners. But the same vehicle that makes the business possible also makes the accounting harder than a standard service business. This guide walks through the three places mobile groomers most often lose track of their real numbers — vehicle costs, per-appointment costing, and the day-to-day fuel/maintenance line — and how to build a chart of accounts that actually reflects what the business spends to earn a dollar.
Why Mobile Grooming's Books Look Deceptively Simple
A storefront groomer has one big fixed cost (rent) and a fairly stable set of variable costs per appointment (product, labor, utilities). A mobile groomer trades the rent line for something much messier: a $35,000–$80,000 rolling asset that combines vehicle depreciation, a grooming buildout (tub, hydraulic table, high-velocity dryer, water tank, generator, electrical, plumbing), fuel that swings with gas prices and drive time, and maintenance that scales with mileage rather than with the calendar.
That's four different cost behaviors bundled into one line item most owners just call "the van." If your books track it as a single expense category, you can't answer basic questions: What does an appointment actually cost to deliver? Is a 25-minute drive between clients still profitable? Is it time to add a second van, or is the first one barely paying for itself?
The fix is to unbundle the van into its component costs and allocate each one the way it actually behaves — some per mile, some per appointment, and some as a fixed monthly charge regardless of how many dogs you groom.
Van Conversion Costs: What You're Actually Depreciating
Before you can allocate van costs to appointments, you need to know what you paid for and over what period each piece loses value.
Typical investment ranges (2026 figures):
- A used cargo van (Transit, ProMaster) in solid mechanical shape: $15,000–$30,000
- A new high-roof cargo van before conversion: $38,000–$52,000
- Full grooming buildout — tub, hydraulic table, dryer, water/waste tanks, generator, electrical, plumbing: $15,000–$50,000 depending on equipment tier
- Total initial investment for a base setup: roughly $35,000, with fully outfitted vans running as high as $80,000
For bookkeeping purposes, the vehicle chassis and the grooming buildout are two separate assets with two separate useful lives, even though they arrived as one purchase. The chassis depreciates like any commercial vehicle. The buildout — the tub, table, dryer, generator, and plumbing — is equipment, and equipment ages differently than a vehicle's engine and transmission. Recording them as one lump "van" asset makes your depreciation schedule wrong and makes it harder to know when it's time to replace the generator versus the whole rig.
On the tax side, 2026 rules under the One Big Beautiful Bill Act allow 100% bonus depreciation on qualified property acquired after January 19, 2025, and a dedicated grooming van used entirely for business may qualify for Section 179 expensing on top of that — the vehicle chassis if it exceeds 6,000 lbs GVWR, and the grooming equipment inside it as separately depreciable property. That's a significant first-year deduction, but it's also exactly why separating chassis from buildout in your books matters: your tax preparer needs the split to apply the right depreciation method to each piece, and if your ledger only has one "van" line, you're reconstructing that split from receipts at tax time instead of pulling it straight from your books.
A grooming van depreciates at roughly 15–20% a year on the vehicle side alone — faster than a typical passenger car, because commercial mobile-service vehicles rack up mileage quickly and carry heavier daily wear. Whatever schedule your accountant sets, put it in the books as a recurring monthly non-cash expense so your profit-and-loss statement reflects the real cost of the asset wearing out, not just the cash outlay the month you bought it.
Per-Appointment Costing: What a Dog Actually Costs You
This is the calculation most mobile groomers skip, and it's the single biggest lever for pricing correctly. A well-run mobile operation completes six to eight appointments a day, and at typical mobile rates of $100–$170 per dog (mobile grooming commands a 20–40% premium over storefront pricing for the convenience), that produces attractive-looking daily revenue. But revenue isn't profit, and per-dog revenue isn't per-dog margin.
Build your per-appointment cost from five components:
- Product cost — shampoo, conditioner, blade oil, cleaning supplies. Usually the easiest to track; buy in bulk from a wholesale supplier and divide the case cost by uses per case.
- Water and propane — water tank refills and propane for heated water systems are real, recurring costs that scale with appointments, not with the calendar. Track them as a per-appointment or per-week variable cost, not a lump "supplies" line.
- Fuel and drive time between stops — the cost of getting to the next dog. This is the line most owners underbudget (more below).
- Generator/equipment runtime — fuel or battery cost to run the dryer, clippers, and water heater on-site.
- Vehicle depreciation allocated per appointment — take your monthly depreciation charge from the section above and divide it by your average monthly appointment count. This turns a fixed asset cost into a variable, per-dog number you can actually compare against your price.
Once you have a true per-appointment cost, compare it against your price by service tier (small dog, large dog, double coat, matted coat) rather than a single blended number. A $130 large-breed groom with a 20-minute drive and heavy water use has a very different margin than a $90 small-breed groom parked in a dense neighborhood where you can walk between three appointments. Pricing that ignores this difference systematically underprices your hardest, most time-consuming jobs — exactly the ones that cost the most to deliver.
The Fuel and Maintenance Line Owners Underbudget
Storefront groomers budget zero for "getting to work." Mobile groomers drive to every single appointment, often multiple times a day, and that mileage is a direct cost of revenue — not overhead.
The IRS 2026 standard business mileage rate is 76 cents per mile (up from 72.5 cents earlier in the year), and that rate is a useful sanity check even if you track actual expenses instead of using the standard mileage deduction: it's built to cover gas, maintenance, insurance, and depreciation together, which is a reasonable proxy for what a mile actually costs a mobile business to drive. If your internal cost-per-mile estimate is meaningfully below 70–75 cents, you're probably undercounting something — most commonly maintenance, since commercial mobile-service vehicles need more frequent oil changes, brake work, and tire replacement than the same vehicle used for commuting.
Three things to build into this line explicitly:
- A maintenance reserve, not just maintenance-as-incurred. Route the equivalent of several cents per mile into a separate savings sub-account monthly, so a $2,000 transmission repair doesn't blow up a month's cash flow. Recording maintenance only when the bill arrives makes your monthly P&L bounce unpredictably and hides the true ongoing cost of the vehicle.
- Drive-time cost, not just fuel cost. Twenty minutes between appointments is twenty minutes you're not earning, on top of the fuel burned getting there. If your route planning routinely produces long gaps between stops, that's a scheduling problem showing up as a bookkeeping problem — track average drive time between appointments as an operational metric, not just a cost.
- Emergency repair fund, separate from routine maintenance. A breakdown that takes the van out of service for a week doesn't just cost the repair bill — it costs every appointment you have to cancel or reschedule that week. Build that lost-revenue risk into how much cash reserve the business keeps, not just how much you set aside for oil changes.
Simplify Your Financial Management
Between vehicle depreciation, per-appointment cost tracking, and a fuel/maintenance line that behaves differently from a typical service business, mobile grooming bookkeeping has more moving parts than it looks like from the outside. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data — no black boxes, no vendor lock-in, and a format precise enough to track a chassis and a grooming buildout as the separate assets they actually are. Get started for free and see why developers and finance professionals are switching to plain-text accounting.