Auto Parts Shop Invoice Template

A wrong alternator costs a parts shop twice: once in the time spent swapping it, and again when the customer argues about the core charge. A clear auto parts invoice template prevents most of that. It records the exact part number, the vehicle it was looked up for, any core deposit and the return rules, so the counter, the customer and the accounts team all see the same facts.

This guide covers the fields for retail and trade parts invoices, a filled-in sample with a core charge and trade discount, how to credit cores and returns, and tax notes for the US and India.

Who this template is for

• Auto parts stores selling to DIY customers over the counter.
• Parts distributors and wholesalers selling to garages on account.
• Spare parts shops for motorcycles, trucks and tractors.
• Breakers and used-parts yards selling tested used parts.

Garages that fit the parts as well should use a repair invoice instead, which adds labour lines; see our auto repair invoice template.

Auto parts invoice: field list

Field	Example	Why it matters
Shop details and tax ID	Name, address, phone, GSTIN or state seller's permit	Required on tax invoices where registered
Invoice number, date	AP-26-10452, 12 Nov 2026	Reference for returns, warranty and cores
Customer or account	Garage name and account number	Trade pricing and credit terms
Vehicle	2017 Honda Civic 1.8, VIN	Proves fitment lookup
Part number and brand	BP-4521, brand name, OEM or aftermarket	Exact identification for returns and warranty
Description	Front brake pad set, ceramic	Readable by the customer
Qty, unit price, amount	2 x 48.99	The basic calculation
Core charge	Alternator core, 45.00	Refundable deposit, shown separately
Discount	Trade 15%	Shows account pricing transparently
Tax, total, terms	7% tax, Net 30	What is owed and when
Return and warranty policy	30 days unused; electrical non-returnable once fitted	Prevents counter disputes

Sample auto parts invoice with a core charge

This US example is a sale to a small independent garage on a trade account. The garage receives 15% off parts, and the shop collects a refundable core charge on a remanufactured alternator. The example assumes a 7% sales tax on parts; whether a buyer can purchase tax-free for resale, and whether core charges are taxable, depend on your state.

Invoice AP-26-10452 | Date: 12 November 2026 | Terms: Net 30 (due 12 December 2026)
From: Northside Auto Parts
Bill to: Miller's Garage, account 2231
Vehicle: 2017 Honda Civic 1.8, VIN on file

Part no.	Description	Qty	Unit	Amount
BP-4521	Front brake pads, ceramic (aftermarket)	2	$48.99	$97.98
BR-1180	Front brake rotor (aftermarket)	2	$62.50	$125.00
ALT-7734R	Alternator, remanufactured	1	$189.00	$189.00
OF-215	Oil filter	6	$7.25	$43.50
Parts subtotal				$455.48
Trade discount 15%				-$68.32
Net parts				$387.16
Sales tax 7% on net parts				$27.10
CORE-ALT	Core charge, refundable on return of old alternator	1	$45.00	$45.00
Total due				$459.26

The math: $97.98 + $125.00 + $189.00 + $43.50 = $455.48. A 15% discount is $68.32 (rounded from $68.322), leaving $387.16. Tax at 7% is $27.10. Add the $45 core charge and the total is $459.26. Notice the core charge sits outside the discount, so the refund later is exactly $45, which keeps the credit simple.

Core returns and credit notes

When the garage brings back the old alternator, do not edit the original invoice. Issue a credit note:

• Reference the original invoice (AP-26-10452) and the core line.
• Describe the returned core and its condition ("Core received, rebuildable").
• Credit $45.00, plus any tax that was charged on the core in your state.
• Apply it to the account balance or refund it, and say which.

The same applies to returned unused parts. A goods return note records what came back and in what condition, and the credit note handles the money. If you are unsure which document to use, our explainer on credit memos versus credit notes covers the terminology.

Retail versus trade invoices

	Retail (counter)	Trade (garage account)
Payment	Paid at the counter	On account, usually Net 30
Pricing	List price, occasional promotions	Trade discount or price tier
Customer details	Name and phone, optional	Business name, account number, tax ID
Vehicle details	Strongly recommended	Recommended, often with job reference
Statements	Not needed	Monthly statement of all invoices

Distributors supplying other shops in bulk can follow the layout in our wholesale invoice template, which handles tiered pricing and carton quantities. For trade accounts, our Net 30 payment terms guide has wording you can copy.

Tax notes for parts sellers

United States

Parts sold to retail customers are generally subject to state and local sales tax. Garages that resell parts to their own customers may buy tax-free with a valid resale certificate, depending on the state. Rules for core charges, shop supplies and environmental fees vary. Our sales tax calculator helps with the arithmetic.

India

The 2025 GST reform cut the rate on auto parts. According to the government's PIB summary, buses, trucks, three-wheelers and all auto parts moved from 28% to 18%, while tractor parts are at 5%. Show the HSN code and rate per line, and the buyer's GSTIN for garages claiming input tax credit. See our GST invoice guide for the complete field list. This is general information, not tax advice.

Step-by-step: raising a parts invoice

1. Record the vehicle (VIN, or make, model, year and engine).
2. Look up and confirm the part number with the customer.
3. Add each part with brand and whether it is OEM, aftermarket or used.
4. Add any core charge as its own line.
5. Apply trade discount or promotion.
6. Calculate tax according to your local rules.
7. Print returns and warranty policy in the footer.
8. For account customers, set the due date and include it in the monthly statement.

Footer wording you can copy

Short, firm wording at the bottom of every parts invoice saves the counter staff from explaining the rules on every sale:

• "Unused parts in original packaging may be returned within 30 days with this invoice."
• "Electrical parts are non-returnable once fitted or removed from sealed packaging. Faulty parts are handled under warranty."
• "Core charges are refunded when the old part is returned in rebuildable condition within 30 days."
• "Special-order parts are non-returnable."
• "Fitment is based on the vehicle details supplied by the customer."

The last line matters: if the customer gave the wrong year or engine size, the invoice shows that the lookup was based on their information.

Special orders, warranty claims and used parts

Special-order parts

Parts you order in for a single customer are hard to sell to anyone else. Take a deposit, write "special order, non-returnable" on the order and the invoice, and record the expected arrival date. When the part arrives, the final invoice shows the full price, the deposit received and the balance.

Warranty claims

When a part fails under warranty, the customer brings back the part and the original invoice. Record the claim on a separate document that references the original invoice number, the part number, the failure described and whether you replaced the part immediately or sent it to the supplier for assessment. If you replace it on the spot, issue the new part at zero value on a new invoice that references the claim; if the claim is rejected later, you have a clear record of what was supplied. Labour costs for refitting are usually not covered by a parts warranty unless the supplier's terms say otherwise, so say so on your policy.

Used and salvage parts

Breakers and salvage yards should describe used parts honestly: the donor vehicle, mileage if known, condition, whether it was tested and the warranty period. "Used gearbox from 2016 Corolla, 92,000 km, tested, 30-day fitment warranty" tells the buyer far more than "gearbox". Many yards also record the donor VIN, which helps with any later questions about the part's origin.

Common mistakes on auto parts invoices

• No vehicle recorded. Fitment disputes become impossible to settle.
• Core charge buried in the price. Customers do not know they can claim it back, and refunds get messy.
• Editing invoices for returns. Always use credit notes so the audit trail stays intact.
• No distinction between new, remanufactured and used. Warranty periods differ; say which it is.
• Return policy only in the shop. If it is not on the invoice, expect arguments.

Mobile mechanics who buy parts and fit them on site should also see our mobile mechanic invoice template.

Build this parts invoice, core line and trade discount included, in our free invoice generator. There is no account to create, and you can download the finished invoice as a PDF for the customer or your records.