Free Invoice Template for Muffler & Exhaust Shops
Custom bends, full systems, and catalytic-converter invoicing with emissions notes.
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What is a muffler & exhaust shop invoice?
An muffler & exhaust shop invoice is the bill you send a customer AFTER the work is done. It lists every part, labor charge, and tax, and tells the customer what they owe and how to pay.
What every muffler & exhaust shop invoice should include
- CARB/EPA compliance flag
- OEM vs aftermarket part #
- VIN + emissions cycle
- Warranty terms
- Sound-level note (if performance)
Muffler & exhaust shop pricing reference (US, 2026)
Common muffler & exhaust shop line items. National averages — adjust for your local market.
Muffler & exhaust shop invoice tips that get you paid faster
- Photo the rusted-out section before cutting
- Stock common pipe diameters — saves bend time
- Quote performance vs OEM-replacement separately
- Don't install non-CARB cats in CA
Muffler & exhaust shop invoice FAQ
Do I charge sales tax on exhaust repair work?
Most US states tax parts/materials but exempt labor. Use Glo Invoice's per-line tax toggle so each exhaust repair line item is taxed correctly. Check your state — a few (HI, NM, SD, WV) tax services too.
Are aftermarket cats legal?
Federally yes; CA requires CARB-EO #. Print the EO # on the invoice.
Warranty on welds?
Lifetime on workmanship is standard. Bake it into your reputation.
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