How to start an auto repair shop
1. Decide what kind of shop you are
General repair, a specialty (transmissions, European, diesel, tires), or mobile. The choice drives everything else: how much space you need, which tools, and who your customers are. Most new shops do better with a clear focus they can be known for than with “we fix everything”.
2. Write a one-page business plan
You don't need a 40-page document. You need honest answers to:
- What services, for which cars, in what area?
- How many bays and techs at the start?
- What will it cost to open, and what does it cost to stay open each month?
- How many billed hours a month do you need to break even? (The labor rate calculator answers this.)
- Where will the first 50 customers come from?
3. Registrations, licenses and insurance
- Business entity and tax ID. Form an LLC or corporation and get an EIN from the IRS.
- State and local licenses. A business license, sales tax permit (you'll collect tax on parts), and zoning approval for an automotive use at your address.
- Repair facility registration where your state requires it — California, New York and Michigan are examples. Some states also set rules for written estimates and invoices.
- EPA Section 609 certification for anyone doing A/C work.
- Waste handling for used oil, coolant, filters and tires, following EPA and state rules.
- Insurance: garage liability, garagekeepers coverage for customers' cars, property, and workers' comp once you hire.
Rules change by state and city. Before signing a lease, call your state's automotive repair or consumer protection office and your city's zoning office.
4. Equipment for day one
- Lifts (two-post for general repair), floor jacks and stands
- A good scan tool — this is not where to save money
- Air compressor and air tools, hand tools, torque wrenches
- Tire machine and balancer if you'll do tires
- A/C recovery machine if you'll do A/C
- Fluid drains and waste storage
- Shop management software for estimates, inspections and invoices
5. Price it so the shop pays you
Set your labor rate from your costs, not your competitor's sign — here's how. Price parts with a matrix (parts markup calculator). Charge for diagnosis.
6. Get your first customers
- Set up your Google Business Profile with real photos, hours and services. Ask every happy customer for a review.
- Visit local businesses with vehicles — landscapers, contractors, delivery fleets.
- Do a multi-point inspection on every car (free checklist) and write down the “soon” items: that's your next visit.
- Send service reminders. A customer who comes back twice a year is worth far more than a one-time coupon customer.
7. Your first 90 days
- Track billed hours, average repair order and parts margin every week.
- Use written estimates and get approval before every job — your estimate template is here.
- Photograph what you find. It wins approvals and protects you in disputes.
- Keep every repair order and invoice numbered and searchable.
Questions
Do I need a license to open an auto repair shop?+
You'll need the usual business registrations everywhere. Some states also require the repair facility itself to register — for example California (Bureau of Automotive Repair), New York (DMV) and Michigan. Check your state before you sign a lease.
Do I need certification to do A/C work?+
Yes. In the U.S., anyone who services motor vehicle air conditioning for pay must be certified under EPA Section 609, and the shop needs approved refrigerant recovery equipment.
Can I start as a mobile mechanic instead?+
Many people do: lower startup cost, no lease. Check local rules on working at customers' homes, and plan how you'll handle jobs that need a lift.
Open your doors with estimates, inspections and invoices ready.
RepairSlip keeps every estimate, inspection and invoice in one place, and texts the customer a link to approve. $19 a month for the whole shop.