How to Start a Mobile Mechanic Business: A Step-by-Step Checklist
Updated 2026-10-17. Sources are listed at the end.
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This is general information, not legal or tax advice. Rules vary by state and change often. Confirm with the official source linked in each section, or with a licensed attorney, CPA or insurance agent, before you act.
The SBA’s launch checklist runs in a sensible order: choose a business structure, register the business, get federal and state tax IDs, apply for licenses and permits, and open a business bank account (SBA, Launch your business). Here it is adapted for a mobile mechanic, with the mechanic-specific steps added.
1. Choose a structure
A sole proprietorship is the simplest start; an LLC adds liability protection “in most instances,” per the SBA (SBA, Choose a business structure). Compare them in LLC vs sole proprietor for a mobile mechanic.
- Decide on sole prop vs LLC.
2. Register the business and name
- If you form an LLC, register it with your state (usually the secretary of state). States charge a filing fee (SBA, Register your business).
- Using a brand name as a sole proprietor? The SBA explains registering a trade name / DBA (same source).
3. Get your tax IDs
- EIN: apply directly with the IRS. It’s free (IRS, Get an EIN). You need one to hire employees or form a multi-member LLC, and banks often ask for one.
- State tax registration, including sales tax on parts if your state taxes them. Rules vary by state; see the SBA’s state tax overview (SBA, Get federal and state tax ID numbers).
4. Licenses and permits
The SBA notes licenses and permits can be required at the federal, state and local level (SBA, Apply for licenses and permits).
- State repair registration, if your state has one. California (BAR), New York (DMV) and Michigan all regulate repair businesses. Details are in mobile mechanic license requirements.
- City/county business license and zoning.
- EPA Section 609 certification before you touch A/C for pay (EPA; our 609 guide).
- Used oil and fluids: EPA’s used oil management standards are in 40 CFR Part 279, and states may be stricter (EPA). Line up a collection point before your first oil change.
5. Insurance before the first job
- General/garage liability, garagekeepers, commercial auto, and tools coverage. See insurance types, commercial auto for your van and typical costs.
- Compare quotes from NEXT Insurance, Insureon or a local agent.
6. Money and taxes
- Open a separate business bank account (SBA step 5).
- Self-employment tax: 15.3% (Social Security plus Medicare) on net earnings, filed on Schedule SE if you net $400 or more (IRS).
- Quarterly estimated taxes: sole proprietors generally must pay them if they expect to owe $1,000 or more (IRS, Estimated taxes).
- Mileage log from day one. The van is likely your biggest deduction (mileage guide).
- Bookkeeping: QuickBooks or a spreadsheet, but pick one now. Take cards with a reader such as Square.
7. Tools, pricing and paperwork
- Scan tool matched to the vehicles you’ll service: compare at ScanToolMatch.
- Set your labor rate from your costs (labor rate calculator; pricing formula; 2026 labor rates; free labor quote calculator).
- Written estimates and authorization. In some states the law requires them, e.g. California’s BPC §9884.9 (leginfo). Use the free estimate & invoice generator.
- Software when you outgrow paper: best software for mobile mechanics.
8. Get found
- Set up a Google Business Profile as a service-area business (GBP guide). In California, ads must include your BAR info.
- Ask every happy customer for an honest review. The FTC prohibits fake or bought reviews (FTC).
9. Before you hire
Next steps: sales tax on labor vs parts, tool and van deductions, and landing fleet accounts.
Once you’re set up, the first-customers plan covers marketing for your first 90 days.
Sources
- SBA, Launch your business: https://www.sba.gov/business-guide/launch-your-business
- SBA, Choose a business structure: https://www.sba.gov/business-guide/launch-your-business/choose-business-structure
- SBA, Register your business: https://www.sba.gov/business-guide/launch-your-business/register-your-business
- SBA, Get federal and state tax ID numbers: https://www.sba.gov/business-guide/launch-your-business/get-federal-state-tax-id-numbers
- SBA, Apply for licenses and permits: https://www.sba.gov/business-guide/launch-your-business/apply-licenses-permits
- IRS, Get an EIN: https://www.irs.gov/businesses/small-businesses-self-employed/get-an-employer-identification-number
- IRS, Self-employment tax: https://www.irs.gov/businesses/small-businesses-self-employed/self-employment-tax-social-security-and-medicare-taxes
- IRS, Estimated taxes: https://www.irs.gov/businesses/small-businesses-self-employed/estimated-taxes
- EPA, Section 609 technician training and certification programs: https://www.epa.gov/mvac/section-609-technician-training-and-certification-programs
- EPA, Managing used oil (businesses): https://www.epa.gov/hw/managing-used-oil-answers-frequent-questions-businesses
- California BPC §9884.9: https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=9884.9
- FTC, Soliciting and paying for online reviews: https://www.ftc.gov/business-guidance/resources/soliciting-paying-online-reviews-guide-marketers