Car Wash Invoice Template: Fleet Accounts + Memberships

Car wash invoice template for fleet washing accounts, per-vehicle pricing by class, memberships and mobile washing, with a monthly fleet invoice example.

By Invoice Creator Editorial Team 9 min readPublished: October 29, 2026

Quick answer: A car wash invoice template bills a customer or fleet account for vehicle washing services. For fleets, it lists each wash by date, vehicle or unit number and vehicle class, the per-vehicle price, add-ons like interiors or undercarriage, any minimum charge or volume discount, sales tax where it applies, the PO number, payment terms and the total due.

Retail car wash customers pay at the tunnel or kiosk and get a receipt. The invoicing work in this business comes from fleet accounts, business memberships and mobile fleet washing, where a monthly invoice can cover dozens or hundreds of vehicles. This guide explains how to price and invoice fleet washing, how memberships are billed, and includes a complete fleet invoice example.

What is a car wash invoice?

A car wash invoice is a bill from a car wash, mobile wash service or fleet washing company to a customer for vehicle cleaning. It differs from a point-of-sale receipt because payment is due later, usually for multiple washes over a billing period. Common customers include delivery and service companies, car dealerships, rental agencies, municipalities, property managers, and trucking companies.

If your work goes deeper than a wash, such as paint correction or full interior details, our car detailing invoice template covers that service. For washing buildings, equipment or lots, see our pressure washing invoice template.

How is fleet washing priced?

Fleet washing is priced per vehicle, by class, with add-ons. The table below shows an illustrative price sheet; your prices depend on local competition, water and chemical costs, and whether you wash at your site or the customer's.

Vehicle class	Exterior wash (illustrative)	Common add-ons
Sedan or compact car	$14	Interior vacuum, wipe-down
SUV or pickup	$18	Bed cleaning, undercarriage
Cargo van or sprinter	$22	Cargo area clean, roof wash
Box truck	$65	Degreasing, aluminum brightening
Tractor or tractor-trailer	$95+	Trailer interior washout, degreasing

Fleet customers usually get a discount from retail prices in return for volume and predictable scheduling. A simple structure is a published fleet rate per class, with an extra discount for committing to a minimum number of washes per month. To make sure your fleet prices still cover costs, see our guide to calculating profit margin.

Memberships and wash clubs

Unlimited wash memberships are a core revenue model for express tunnel car washes. Consumers pay a monthly fee charged automatically to a card and wash as often as they like, usually for one registered vehicle. Business memberships cover several company vehicles, often invoiced monthly instead of charged to a card. Membership billing works like a gym membership invoice: plan name, billing period, renewal date and how to cancel. Many states have automatic renewal laws requiring clear disclosure of recurring charges and an easy way to cancel, so check the rules where you operate.

What should a car wash invoice include?

Business name, address, phone, email and logo
Customer legal name, billing contact and address
Invoice number, invoice date, billing period and due date
PO number or account number, if the customer uses them
Wash log: date, vehicle or unit number, vehicle class, service, price
Add-ons and any minimum charge or volume discount
Sales tax on taxable services or products, where applicable
Total, payment terms, payment methods and late fee policy

For large fleets, put a summary on page one (washes by class with subtotals) and the full wash log on following pages. Fleet managers can then check totals quickly and audit details if needed.

Car wash invoice example: monthly fleet account

A local delivery company has 20 vehicles and a twice-monthly exterior wash plan for cars and vans, with box trucks washed once a month. Four cars also had interior cleaning. Prices are illustrative, and this example assumes washing services are not taxable in the business's state.

Service	Vehicles	Washes each	Rate	Amount
Exterior wash, sedans (units 101 to 112)	12	2	$14.00	$336.00
Exterior wash, cargo vans (units 201 to 206)	6	2	$22.00	$264.00
Exterior wash with degreasing, box trucks (units 301, 302)	2	1	$65.00	$130.00
Interior vacuum and wipe-down add-on (units 104, 107, 110, 111)	4	1	$25.00	$100.00
Total due				$830.00

The attached wash log lists each wash with date, unit number and the employee code. Our free invoice generator handles the summary page; attach your wash log exported from your wash system or a spreadsheet.

How to handle volume discounts and minimums on fleet invoices

Fleet agreements usually include either a volume discount, a minimum charge, or both. Show them as separate lines so the customer sees full price, discount and net amount.

Volume discount example: a contract gives 10% off when a fleet has 100 or more washes in a month. In November, the fleet had 112 washes totaling $2,140 at standard fleet rates. The invoice shows "Fleet washes, 112 (see log) $2,140.00," then "Volume discount, 10% for 100+ washes, -$214.00," for a net of $1,926.00.

Minimum charge example: a mobile washer has a $250 minimum per visit. On one visit only 9 vans were available at $22 each, totaling $198. The invoice shows the 9 washes for $198.00 and a "Minimum visit charge adjustment" of $52.00, bringing that visit to $250.00. If minimums apply often, talk with the fleet manager about scheduling so more vehicles are on the lot.

Dealerships, rental agencies and property managers

Car dealerships often need lot washes, new car prep and service-customer washes, sometimes billed to different departments. Ask which cost center each service belongs to and invoice accordingly. Rental agencies care about turnaround time and may pay per vehicle turned. Property managers may want wash days for tenants' vehicles billed to the property or to individual tenants. Trucking companies frequently need trailer washouts with documentation for food-grade loads; our trucking invoice template shows how those customers bill their own clients, which helps you understand what paperwork they need from you.

Wash cards and codes

Many tunnel washes give fleet customers wash cards, RFID tags or codes. Every use is recorded automatically, and the monthly invoice pulls from that data. Deactivate lost cards quickly and note the card or tag number on each wash log line, so a fleet manager can spot misuse by a driver.

How to set up fleet wash billing step by step

Sign a fleet service agreement. Include prices per class, add-ons, wash frequency, location, minimum charges, payment terms, damage claim process and insurance.
Complete vendor setup. Large customers need a W-9, certificate of insurance and banking details; start early so your first invoice is not delayed.
Create a vehicle list. Get unit numbers, plates and classes from the fleet manager so every wash maps to a known vehicle.
Log every wash. Use wash codes, RFID tags or a simple log with date, unit and service. Disputes are rare when the log is complete.
Invoice monthly. Send invoices on the same date each month. If you have many fleet accounts, batch invoicing saves hours.
Track payment and follow up. Apply payments to the right invoices and send reminders before the due date for slow payers.

Mobile fleet washing: extra lines to consider

Mobile fleet washers travel to the customer's lot, often overnight or early morning. That adds costs a tunnel wash does not have, and the invoice should reflect them:

Trip or minimum charge: a minimum per visit, so small visits remain profitable.
Water reclamation or environmental fee: many cities and states have stormwater rules that restrict letting wash water reach storm drains, so mobile washers often use reclaim mats and pumps. Explain any fee in your agreement.
After-hours scheduling: overnight washing may cost more in labor; build it into the rate or charge a premium.
Water and power: if you use the customer's water or power, say so; if you bring your own, factor it into price.

The US EPA's stormwater program explains why discharges to storm drains are regulated; check your city's stormwater ordinance for specific rules. Clean, compliant operations are a selling point for fleet managers who are responsible for their lots.

Payments, sales tax and recordkeeping

Fleet customers typically pay by ACH or check on net 15 or net 30 terms. Card payments are convenient but add processing costs; see our guide to credit card processing fees before deciding whether to accept cards on large fleet invoices.

Sales tax on car washing varies widely: some states tax it as a service, some exempt it, and some tax detailing but not basic washes. Products such as air fresheners or wiper blades are usually taxable. Our overview of sales tax on services by state is a starting point, and the sales tax calculator helps compute tax on taxable lines. This is general information, not tax advice.

Keep wash logs with each invoice for at least as long as you keep your tax records. They support your revenue figures and resolve customer questions months later.

Retail receipts and gift cards

Even if most of your revenue is retail, a few customers will ask for a proper invoice or receipt, usually for business expense reimbursement. Your point-of-sale system should be able to print or email a receipt showing the business name, date, service, amount and tax. For customers who want a formal invoice after paying, issue one marked as paid, with the payment date and method; our payment receipt template covers what to include.

Wash books, prepaid packages and gift cards are sold before the service is delivered. Record them as prepaid amounts and draw them down as customers wash. Some states have gift card rules covering expiration dates and fees, so check before putting an expiry on a prepaid wash package.

Common car wash invoicing mistakes

No unit numbers. Fleet managers cannot verify washes without them, and payment stalls.
One price for all vehicles. Box trucks priced like sedans lose money.
Missing PO numbers. Many companies reject invoices without them.
Taxing everything or nothing. Check which services and products are taxable in your state.
Unclear membership terms. Unclear renewal and cancellation terms lead to chargebacks and complaints.
Settling damage claims on the invoice. Handle claims separately and document them.

Car wash invoice checklist

Business and customer details, invoice number and billing period
PO or account number
Summary by vehicle class with quantities and rates
Add-ons, minimums and discounts
Detailed wash log with dates and unit numbers
Sales tax where required
Payment terms, methods and due date

A car wash invoice template built around vehicle classes, unit numbers and a clean wash log makes fleet accounts easy to bill and easy to pay. If you are just getting started, our guide on how to start a car wash business covers the bigger picture. Our invoice generator is free, needs no sign-up, and builds a PDF in your browser that you can download and send to fleet customers.

Frequently asked questions

How do car washes bill fleet customers?

Most fleet accounts are billed monthly. Each wash is recorded with the date, vehicle or unit number and service, then all washes for the month go on one invoice with net 15 or net 30 terms. Some fleets use wash cards or codes for drivers, and the car wash bills the company for every code used. Larger fleets often require a PO number on each invoice.

How should fleet wash pricing be structured?

Price by vehicle class, because a box truck takes far more time, water and chemicals than a sedan. Typical classes are cars, SUVs and pickups, cargo vans, box trucks and tractor-trailers. Add-ons like interior cleaning, undercarriage or degreasing are priced separately. Volume discounts for a guaranteed number of washes per month are common.

Do car wash memberships need an invoice?

Unlimited wash memberships are usually charged automatically to a card each month, and the customer receives an emailed receipt rather than a traditional invoice. Business memberships for company vehicles are often invoiced monthly instead. Either way, the receipt or invoice should show the plan, vehicle, billing period, amount, renewal date and how to cancel.

Is a car wash subject to sales tax?

It depends on the state. Some states tax car washing as a taxable service, others exempt it, and some tax only certain services like detailing. Products sold, such as air fresheners or towels, are usually taxable. Check your state revenue department's rules and keep taxable and nontaxable services on separate lines.

What rules apply to mobile fleet washing runoff?

Wash water containing soaps, oil and grime generally should not go into storm drains, which often flow directly to local waters. Many cities and states have stormwater rules requiring mobile washers to capture and reclaim or properly dispose of wash water. Check local requirements before washing on a client's lot, and consider a separate environmental or water reclamation line on invoices.

Should a car wash charge a minimum for mobile fleet visits?

Many mobile fleet washers set a minimum charge per visit, because travel and setup cost the same whether you wash three vehicles or thirty. A minimum, such as a set dollar amount or a set number of vehicles, keeps small visits profitable. Show it on the invoice as a minimum charge adjustment when the vehicle count falls below the threshold.

How do I handle damage claims on fleet vehicles?

Do a quick walk-around before washing and note existing damage, ideally with photos and unit numbers. Your service agreement should explain how claims are reported and investigated and what your insurance covers. Keep claims separate from the invoice; do not reduce an invoice to settle a claim without a written agreement, so your records stay clean.

What payment terms work for fleet wash accounts?

Net 15 or net 30 is common for fleet accounts, billed monthly. For new accounts, some car washes ask for a card on file or a deposit before opening credit. Larger companies may need you to complete a vendor setup, provide a W-9 and a certificate of insurance before the first payment, so start that process early.

Invoice Creator Editorial Team

Guides on invoicing, cash flow and small-business finance from Invoice Creator, operated by Next Software Development Company. Content is reviewed for accuracy against the fields our own invoice generator produces.

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