Auto Repair Invoice Software That Saves an Hour a Day
Mechanics generates professional auto repair invoices with labor, parts, taxes, and customer signatures in seconds. No more calculating line items by hand or manually entering customer info. From completed work orders to signed invoices — automatic.
INVOICING WORKFLOW
How Invoicing Works in Mechanics
Create from Completed Work Order
When the tech finishes the job, all work details are already in the system. Parts used, labor hours, notes, and photos. Click "Generate Invoice" and the invoice is pre-filled with everything — no manual data entry needed.
Add Labor & Parts Lines Instantly
Labor hours automatically multiply by your shop rate. Parts pull from your inventory with correct costs. Add diagnostics, disposal fees, or shop supplies in seconds. Every line is itemized and clear.
Apply Shop Supply Fees & Tax Automatically
Set your shop supply percentage (typically 10-15%) and tax rate once. Mechanics calculates and applies them to every invoice automatically. No more manual math. No more mistakes. Tax compliance built in.
Digital Customer Signature
Email the invoice to the customer. They sign on their phone or tablet. No printing, no scanning, no lost paperwork. Signature stored with the invoice. Legal protection and instant proof of approval.
INVOICE COMPONENTS
What Goes on a Professional Auto Repair Invoice
Vehicle Information
Year, make, model, VIN, mileage, license plate — all pulled from your work order history for reference.
Labor Hours × Rate
Itemized by task. Mechanics multiplies your shop labor rate (e.g., $95/hr × 2.5 hrs = $237.50) for transparency.
Parts & Materials
Part name, quantity, cost per unit, and total. Marks parts you marked in the work order with correct pricing.
Shop Supplies
A percentage line (e.g., 15% shop supplies) for disposal, fluids, tools, and consumables — automatic calculation.
Tax Calculation
State sales tax applied to subtotal automatically. Set once, applied to every invoice. Always correct, always tracked.
Customer Signature
Digital signature field. Customer signs on phone/tablet. Proof of approval. Legal protection built in.
Warranty Disclaimer
Customizable warranty text. Parts warranty, labor warranty, and notes all included on the invoice template.
Completion Details
Date completed, tech name, shop contact info, and payment terms. Everything a customer needs in one place.
USE CASES
Who It's For
Independent Shops
1-10 bay shops running multiple cars a day. Mechanics makes invoicing as fast as the work itself. No more checkout delays because the invoice isn't done.
Mobile Mechanics
On-site repair specialists who invoice in the customer's driveway. Generate invoices on your phone, email them instantly, collect signatures before you leave. Professional and fast.
Multi-Bay Shops
Multiple techs, multiple cars, multiple invoices per day. Mechanics creates a real-time queue of work orders and invoices so nothing falls through cracks. Track exactly who did what and when.
OUTCOMES
What You Get
Faster Checkout
Invoice ready in 30 seconds. Customer signs and pays. No waiting, no delays, no time wasted on paperwork.
Fewer Disputes
Itemized breakdown is clear. No "What was that charge?" calls. Customer sees and signs the invoice before payment.
Digital Records
Every invoice is timestamped and searchable. Pull up any customer's history instantly. Proof of work for warranty claims.
Save an Hour a Day
No more manual calculations. No more re-entering customer info. No more printing and scanning. Real time back.
MECHANICS VS ALTERNATIVES
How It Compares
vs Writing Invoices By Hand
- Manual math takes 10-15 minutes per invoice. Mechanics does it in 30 seconds.
- Math errors cause billing disputes. Mechanics never miscalculates tax or labor hours.
- Paper invoices get lost. Mechanics stores every invoice digitally with searchable history.
vs Generic Software (Wave, QuickBooks)
- Generic tools don't understand auto repair. Mechanics has labor hours, parts, shop supply %, vehicle history built in.
- You manually type customer and vehicle info into generic software every time. Mechanics pulls from your work order automatically.
- Generic tools cost $50-300/month. Mechanics starts free for 1 vehicle and scales with your shop.
Stop Wasting Time on Invoicing
Mechanics generates professional auto repair invoices instantly. Labor, parts, taxes, customer signature — all automatic. Save an hour every day and stop worrying about billing disputes.
Start Free — No Credit CardFree for 1 vehicle forever. Scale to multiple shops as you grow.