Do you need a permit to be a mobile mechanic in North Carolina?

North Carolina taxes the work, not only the parts

The Department of Revenue puts motor vehicles in the same sentence as real property and tangible personal property, and applies the general state rate plus applicable local and transit rates to the gross receipts from repair, maintenance and installation services on any of them.

Read the reach of that. It is not a rule about parts that happens to mention services. It is a rule about the service, with the parts folded in as things that become part of the customer’s property. A brake job in Charlotte is a taxable service where the identical job in Houston is a taxable part plus untaxed labor.

If you have worked in another state, this is the single line on this page to reread. Carrying a Texas or Georgia habit across the state line produces an invoice that undercharges tax on every job, and the person who owes the difference is you.

Separating the charge on the invoice does not exempt it

Every other state on this site rewards itemizing. North Carolina closes that door in a note attached to the definition of sales price, and it closes it in unusually plain language: installation charges are subject to tax no matter that they may be separately stated by the retailer.

That sentence is there because the instinct it blocks is so widespread. It is worth pinning it to the wall of the van next to the tax rate.

Diagnosis is inside the definition

The definition of repair, maintenance and installation services is written as a list of activities, and one of them is troubleshooting or attempting to identify the source of a problem in order to work out what would restore the vehicle to proper working order.

So a scan and a diagnosis with no parts fitted is not obviously outside the tax in North Carolina, which is where it would sit in Florida. The definition also explicitly covers keeping a vehicle in working order to prevent deterioration, which reaches routine maintenance as well as repair.

We are describing the definition, not telling you how it applies to your invoices. Whether a particular diagnostic charge is taxable is a question for the Department, and it publishes written determinations for exactly that reason.

A repair licensing board was proposed in 2015 and did not pass

Arguments from silence are weak, so here is something better. In the 2015 session the North Carolina General Assembly received Senate Bill 454, titled Automotive Repair Licensing Board. It was referred to the Rules and Operations committee in March 2015 and that is the last thing that happened to it.

A bill proposing to create a board is evidence that no such board existed, and a bill dying in committee is evidence that none was created that session. It is not proof that nothing exists anywhere in the General Statutes today, and we are not claiming that it is.

The registration you do need is free, and people sell it to you anyway

To collect the tax described above you need a certificate of registration from the Department of Revenue. It costs nothing, and the Department has put a warning on its own registration page because third party sites charge for it.

That warning is the most useful sentence on this page for a new business. If somebody is invoicing you for a North Carolina sales tax number, you are being charged for a form the state gives away.