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Transport, travel and auto

GST invoice format for a car wash (car detailing studio)

A car wash or detailing studio supplies cleaning and routine care of vehicles, which the explanatory notes place in SAC 998714 as vehicle laundry, car-wash, polishing and waxing services, taxed at 18%. The bill should show the vehicle number and type, the package chosen, add-ons such as interior vacuuming, ceramic coating or underbody anti-rust treatment, membership or prepaid wash balances, and retail products sold over the counter under their own HSN.

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Sample car wash invoice

DescriptionHSN/SACQtyRate (₹)Taxable (₹)GST
Premium foam wash with interior vacuum, SUV9987141 WASH699.00699.0018%
Ceramic coating, 2-year package, sedan9987141 JOB18,000.0018,000.0018%
Underbody anti-rust coating9987141 JOB2,500.002,500.0018%
Car shampoo, 1 L (retail)34021 BTL450.00450.0018%
Car polish and wax, 250 g (retail)34051 PCS520.00520.0018%
Taxable value₹22,169.00
GST (CGST + SGST, or IGST if inter-state)₹3,990.42
Invoice total₹26,159.42

Sample prices are illustrative. Check the GST rate for your exact item or service before billing.

Extra fields a car wash invoice needs

Vehicle number and type
Prices differ for a hatchback, a sedan, an SUV and a bike. Recording the number and type ties the bill to the vehicle and supports customer complaints later.
Wash or detailing package name
Basic foam wash, premium wash and full detailing include different steps. The package name helps customers see what they paid for.
Add-on services
Engine bay cleaning, odour treatment or headlamp restoration are priced extras. Show each one separately so discounts on the package do not hide them.
Membership or prepaid wash balance
Monthly plans and 10-wash cards are paid in advance. The bill should show the plan used and balance left, so tax on the advance is not charged again.
Coating warranty details
Ceramic and graphene coatings come with a warranty period. Printing the product and period on the invoice supports a claim if the coating fails.
Retail products sold
Shampoo, polish and microfibre cloths sold off the shelf are goods with their own HSN codes. List them separately from the services.
Staff or bay number
Busy studios run several wash bays. Recording the bay or washer on the bill helps trace complaints about scratches or missed areas to the right shift and improves quality checks.

Standard GST invoice fields

Rule 46 of the CGST Rules applies to every tax invoice, including this one:

  • Supplier name, address and GSTIN
  • Consecutive invoice number (max 16 characters, unique for the year)
  • Date of issue
  • Customer name, address and GSTIN (if registered)
  • Place of supply with state name
  • HSN/SAC code per item
  • Description, quantity and unit
  • Taxable value after discounts
  • GST rate and CGST + SGST or IGST amounts
  • Signature or digital signature

Read more: Advance Payment Under GST: Receipt Vouchers, Tax and Adjustment · What Is a SAC Code and How Is It Used Under GST? · POS Billing System: What It Does and How to Run It Daily

GST rules that matter for a car wash

Car wash is a repair-group service at 18%

The explanatory notes include cleaning and routine maintenance such as vehicle laundry, car-wash, undersealing, polishing and waxing within SAC 998714, maintenance and repair of transport machinery. Such services are taxed at 18%. A car wash should not classify itself as a laundry or as general cleaning service under other codes, because consistent use of 998714 aligns with how garages and dealers report the same work.

Prepaid wash plans

When a customer buys a monthly plan or a 10-wash card, the time of supply for services is generally the earlier of the invoice or receipt of payment. Issue a tax invoice or receipt voucher at the time of sale, charging 18% on the full plan. Each later wash under the plan is then a redemption, and the bill for it should show zero value with the plan reference, rather than charging tax again.

Products used versus products sold

Shampoo, wax and coating chemicals used during a service are inputs to the service; their cost is part of the service price. Products sold to customers for home use are separate goods. Organic surface-active agents under 3402 and polishes for coachwork under 3405 sit in the 18% schedule. Billing them on the same invoice is fine, but with separate HSN lines.

Doorstep and app-based car wash

Doorstep car wash businesses that take bookings through their own app are still the supplier of the service and issue the invoice. If you take bookings through an aggregator platform that collects payment, the platform may collect TCS under GST from your payouts, which you can claim as credit. Reconcile platform statements with your own invoices every month.

Water and pollution permissions

Larger car wash centres need permissions from local bodies for water use and effluent discharge in many cities. These are not GST requirements, but printing a business registration number or consent number on the bill can help with municipal checks and builds trust with fleet customers.

Common billing mistakes

  • Charging 18% again each time a customer redeems a prepaid wash already taxed when the plan was sold.
  • Selling shampoo and polish bottles inside a 'wash' line with no HSN code.
  • Using a generic cleaning-services code instead of 998714 for vehicle washing.
  • Not recording the vehicle number, which makes complaints and plan tracking difficult.
  • Giving fleet operators a consolidated monthly bill without vehicle-wise details, so they cannot verify the washes charged.

Car Wash GST invoice: FAQ

What is the GST rate on car washing?

Car washing, polishing, waxing and detailing services are taxed at 18%. The explanatory notes classify them under SAC 998714 along with other vehicle maintenance services.

Is ceramic coating a service or a product?

When applied by the studio on the customer's car, ceramic coating is a service under 998714 at 18%. A coating kit sold for self-application is goods under its own HSN.

Can a small car wash opt for composition?

Service providers with turnover within the limit for the service composition scheme can opt for it, paying tax at a fixed rate on turnover and issuing a bill of supply. They then cannot charge GST to fleet clients who want credit.

Do bike washes have the same rate as car washes?

Yes. Washing and cleaning of motorcycles and scooters is also a maintenance service of transport equipment and carries 18%. Price lists can differ by vehicle, but the tax rate is the same.

Can a car wash give a free wash without an invoice?

A promotional free wash with no consideration is generally not a supply. Record it in the system with a zero-value bill so wash counts reconcile with water, chemical and staff usage.

Sources: GST Council — Explanatory notes to the Scheme of Classification of Services · CBIC — Notification 9/2025-Integrated Tax (Rate), goods rate schedules

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