Free Auto Repair Invoice Template & Generator

What every auto repair invoice should include

A solid repair invoice tells the customer exactly what you touched and why. Include your shop name, address, phone, and any required repair facility or BAR license number. Add the vehicle's year, make, model, VIN, license plate, and the odometer reading at drop-off and pickup. List each job separately: the complaint ("check engine light on"), the cause you diagnosed, and the correction performed. Itemize labor hours and rate per job, parts with part numbers, shop supplies, and any diagnostic or scan fee. Show the subtotal, applicable sales tax on parts (and labor where your state taxes it), and the total. Note warranty coverage on parts and labor, plus your authorization line and the customer's signature. A complete invoice doubles as your service record and your legal protection.

How to price and bill repair work

Most shops bill labor using flat-rate (book) hours rather than actual clock time. A job that lists 2.4 hours bills at 2.4 times your labor rate even if your tech finishes in 90 minutes; this rewards efficiency and gives customers a predictable number. Diagnostic time is often billed separately at an hourly or per-vehicle rate, sometimes credited toward the repair if the customer approves the work. Parts carry a markup over your cost, and a shop supplies or hazmat fee covers rags, cleaners, and fluid disposal. For estimates, give a written quote and require authorization before exceeding it; many states legally cap how far over the estimate you can go without re-authorization. Quote inspections, alignments, and tire mounting as flat fees rather than hourly.

Handling deposits, parts, and authorizations

Special-order or expensive parts justify a deposit before you order, since a customer who walks leaves you holding inventory. State the deposit on the invoice and apply it to the final total. Always get written authorization before starting work, and a second authorization in writing or by recorded call if the job grows once you're inside the engine or transmission. Note which parts are OEM, aftermarket, or remanufactured, because that drives both price and warranty expectations. If you keep replaced parts for warranty or core-charge reasons, say so. Track core charges clearly: bill the core, then issue a credit when the old unit is returned. Spelling out parts sourcing and authorizations on the invoice prevents the most common "I never agreed to that" arguments at pickup.

How to get paid faster

In auto repair you hold leverage most trades don't: the customer needs the car back. Make payment due on pickup and state that clearly on the written estimate so there's no surprise. Many states give repair shops a mechanic's lien, meaning you can legally hold the vehicle until the bill is paid; know your local rules before relying on it. Call with the final number before the customer arrives so they bring the right payment method. Accept cards, tap, and digital payment, not just cash and check, since modern repair bills are large. For fleet or commercial accounts on net-15 or net-30 terms, send the invoice the same day and reference their PO number. Clear totals and warranty terms on the invoice cut down on the callbacks that delay payment.

Create your auto repair invoice free on this page

Skip the carbon-copy work order pad. The generator on this page lets you build a professional auto repair invoice in minutes: add your shop details and logo, enter the vehicle and VIN, and add line items for each repair with labor hours, parts, shop supplies, and diagnostic fees. It calculates subtotals, applies sales tax, and produces a clean PDF you can email or print before the customer leaves. Save a template with your standard labor rate and disclaimer so the next ticket starts half-finished. It's genuinely free, requires no account, and keeps your numbers itemized the way customers and your records expect. Whether you're a mobile mechanic writing one invoice a week or a shop running multiple bays, you get a consistent, defensible document every time.

Should I bill labor by flat-rate hours or actual time?

Most shops use flat-rate (book) hours, where each job has a standard time pulled from a labor guide and you bill that figure regardless of how fast you finish. It gives customers a predictable price and rewards efficient techs. Actual-time billing works for diagnostic and electrical jobs that don't fit the book. Whichever you use, state the hours and your rate clearly on the invoice so the math is transparent.

Do I charge sales tax on labor or just parts?

Parts are taxable in nearly every state. Labor is where it varies: some states tax repair labor, others exempt it, and some tax it only when it's bundled with parts. Itemize parts and labor separately so you apply tax correctly to each. Check your state's department of revenue rules for auto repair specifically, and keep your tax breakdown visible on the invoice rather than rolling it into one lump total.

What is a shop supplies fee and can I charge it?

A shop supplies or shop materials fee covers consumables you can't itemize per job, like rags, cleaners, brake parts cleaner, lubricants, fasteners, and fluid disposal. Most states allow it as long as it's disclosed before work begins and shown as a separate line, not hidden. Some states cap it at a percentage of labor or a flat ceiling. List it clearly on the estimate and invoice so it doesn't read as a surprise add-on.

Can I keep the car until the customer pays?

Often yes. Many states grant repair shops a mechanic's or possessory lien that lets you legally hold the vehicle until the authorized bill is paid. The catch is you usually must have proper written authorization and an accurate invoice to enforce it. Rules on notice periods and sale of unclaimed vehicles vary widely, so confirm your state's lien law before relying on it. A signed authorization and itemized invoice are your foundation for any lien claim.

How do I handle work that costs more than my estimate?

Stop and get re-authorization before exceeding the approved amount. Many states legally limit how far over a written estimate you can go without new consent, often a small percentage or fixed dollar amount. Call the customer, explain the added cause and cost, and document their approval in writing or on a recorded line. Add the new items to the invoice referencing that second authorization. Going over silently is the fastest way to lose payment and trigger a complaint.

What's the difference between OEM, aftermarket, and reman parts on the invoice?

OEM parts come from the vehicle manufacturer, aftermarket parts are made by third parties, and remanufactured (reman) parts are rebuilt used units, often carrying a core charge. They differ in price and warranty, so note which you used on each parts line. Customers and insurers care, and warranty claims later depend on this record. For reman parts, show the core charge as a line item and credit it back when the old core is returned.