GST on a car wash in India: what 18% actually means
Car washing is taxed at 18% under SAC 998714. What an inclusive Rs 399 really contains, how to read a quote, and what belongs on the invoice.
Two bays quote you “Rs 399 for a wash”. At the first you hand over Rs 399. At the second you hand over Rs 470.82. Neither has lied to you.
The difference is whether the 18% was already inside the number you were told. That one question decides what leaves your account, and almost nobody asks it.
The rate, and the code it sits under
Car washing and detailing is taxed at 18% GST, under SAC 998714.
SAC stands for Services Accounting Code. GST has to classify every supply before it can attach a rate to it: goods get HSN codes, services get a SAC. The code is a six digit number that narrows from a broad heading down to a specific service, and 998714 is the one under which vehicle washing, polishing and waxing sit.
Two things follow. The rate does not change with the size of the job: a Rs 399 exterior wash and a Rs 3,499 full detail are the same class of service at the same 18%, so anybody quoting a different tax rate for a polish than for a wash is not quoting you tax. And the code belongs on the invoice, not only in an accountant’s file.
Working an inclusive Rs 399 out loud
Say the price is Rs 399, GST included.
An inclusive price is the value of the service plus the tax on that value. At 18%, the price is therefore 118% of the service value, so to get back to the service value you divide. You do not subtract.
Rs 399 divided by 1.18 is Rs 338.14, to the nearest paisa. That is the wash itself.
The tax is what is left: Rs 399 minus Rs 338.14 is Rs 60.86.
So an inclusive Rs 399 is Rs 338.14 of washing and Rs 60.86 of GST. You hand over Rs 399, and that is the whole of it.
The common mistake is to take 18% of Rs 399 and call that the tax inside it. That gives Rs 71.82, which is the right sum to a different question: it is the tax you would pay if the Rs 399 were exclusive. The tax inside an inclusive Rs 399 is the smaller figure, Rs 60.86.
The same arithmetic runs on the bigger number: Rs 3,499 divided by 1.18 is Rs 2,965.25 of service, with Rs 533.75 of tax inside it.
Inclusive or exclusive, on a quote
| Rs 399 quoted as | Service value | GST at 18% | You pay |
|---|---|---|---|
| Inclusive | Rs 338.14 | Rs 60.86 | Rs 399 |
| Exclusive | Rs 399 | Rs 71.82 | Rs 470.82 |
Rs 71.82 on a wash is an annoyance. The same ambiguity on a full detail is not: Rs 3,499 quoted exclusive comes to Rs 4,128.82, more than six hundred rupees above the number you were given on the phone.
Both are legal. A business may advertise the pre-tax figure as long as it says so. The failure is one of writing rather than of law: a bare number in a message tells you nothing, and the difference only surfaces once the car is clean and the bill is printed.
So ask five words before the work starts. Is that inclusive of GST? If the answer is vague, assume exclusive.
What we quote
The exterior wash is Rs 399 and the full detail is Rs 3,499. Both are stated inclusive of GST, so the number on packages and prices is the number you would pay.
Both are also provisional: the bay in Jubilee Hills has not opened, so these are prices we intend to charge rather than prices anyone has been charged. If they move before we open, they will move in public, and still be quoted inclusive.
When a business has to register
This is where numbers get repeated carelessly online, so here it is described rather than printed.
Registration becomes compulsory once a business crosses the aggregate turnover threshold that applies to it. There is no single threshold: it differs according to whether you supply goods or services, and some states sit on a lower one than the rest of the country. Aggregate turnover is measured across the whole legal entity on one PAN rather than per outlet, which catches out an operator running two small bays and assuming each counts on its own.
Registration is also compulsory in certain situations regardless of turnover, and a business below the threshold may register voluntarily, often because customers want a tax invoice for their own books.
Which threshold applies to you, whether a compulsory case catches you, and whether any simplified scheme is open to you all have specific answers. Put those to a chartered accountant, not to a blog post. Nothing here is legal or accounting advice.
What should be on the bill
If the bay is registered, the invoice should carry:
- The supplier’s name and GSTIN.
- An invoice number and date.
- A description of the service and the SAC, 998714 for a wash or a polish.
- The taxable value, the rate, and the tax as an amount, shown separately rather than folded into the total.
- The total.
For a wash in Hyderabad bought by somebody in Telangana the supply stays within the state, so 18% prints as two lines of 9%: CGST and SGST. If you see 9% and think you have been undercharged, read the line below it.
If the operator is not registered, the bill correctly shows no GSTIN and no tax line, and you pay the sticker price. That is not evasion.
The case worth stopping on is the third: a bill that collects a tax amount but prints no GSTIN anywhere. Tax is being taken with no registration number attached to it. Ask.
If you need your company’s GSTIN on the invoice, say so when you book rather than when you pay. Whether your business can claim anything against it is, again, a question for your accountant.
The short version
- 18% GST, SAC 998714, on the wash and on the polish alike.
- An inclusive Rs 399 is Rs 338.14 of service and Rs 60.86 of tax. Divide by 1.18, do not take 18% of it.
- Ask whether a quote includes GST before the work starts.
- On the bill, look for a GSTIN beside any tax being collected.
The rate card is on packages and prices, and you can book a wash for when the bay opens.
Written by The Car Wash Company, a single wash and detailing bay in Jubilee Hills, Hyderabad. We have not opened yet, so these notes are method and local context rather than a record of work done. If something here is wrong, tell us at[email protected]and we will correct it.