What RMI covers
The taxable universe: services to keep tangible property (and, in many cases, real property fixtures) working or restore it to working order, repairing, maintaining, servicing, calibrating, and installing. Concretely, presumptively taxable when billed as service work: HVAC repairs and tune-ups, plumbing repairs, appliance repair, electrical repairs, garage door service, equipment maintenance agreements, pool service, and installation charges for items sold. The tax applies to the full invoice, parts and labor, at the state-plus-local rate for the job's county.
The big exception: real property contracts
The line that decides everything in the trades: RMI service vs real property contract. New construction, reconstruction, and genuine capital improvements to real property are not RMI, they're real property contracts, where the contractor pays sales tax on materials at purchase and charges the customer no sales tax. A substantial HVAC replacement may qualify as a capital improvement depending on the scope and substantiation, while a repair such as replacing a failed component is generally analyzed as RMI. Form E-589CI and the Department's current real-property guidance help document the treatment, but the facts control. One company, one customer, one week, two opposite tax treatments, decided by the nature of the work. This boundary is where NC audits of trades live, and where invoices, job descriptions, and the E-589CI trail earn their keep.
Getting the mechanics right
- Register for North Carolina sales and use tax before making taxable retail sales and file on the cadence assigned by the Department
- Charge the correct combined rate for the county where the work is performed. NC local rates vary; a Mecklenburg job and a Union County job may differ
- Invoice with the tax shown as a line item; on capital-improvement jobs, keep the E-589CI on file instead
- Parts on RMI jobs: generally purchased for resale (certificate at the supply house) and taxed on the customer invoice, the opposite of the real-property-contract treatment where you eat the tax at purchase. Mixing these up double-taxes you or under-collects
- Maintenance and service agreements require classification under North Carolina's current service-contract and RMI rules; exemptions and the underlying covered property can change the result
If you haven't been collecting
The exposure is real but manageable if you move first: NC offers voluntary disclosure with limited lookback and penalty relief, categorically better than the audit path, where assessments run all open years plus penalties and interest, on tax you never collected from customers and now owe personally. The sequence: quantify the exposure from your invoice history, register and start charging correctly now, and let a professional run the disclosure conversation. We've walked NC service businesses through exactly this. (The national framework, if you also work across state lines: Do You Charge Sales Tax on Services? It Depends. Here's How to Know .)
Living with RMI, operationally
Compliant NC service businesses build the rule into the workflow: estimates and invoices classified RMI vs capital improvement at creation, county rates applied by job location, E-589CIs collected on qualifying jobs, resale certificates current with suppliers, and filings on the monthly bookkeeping calendar. Set up once, it's frictionless; improvised job-by-job, it's a future assessment. As a Charlotte-based firm, this rule is daily bread for us and our clients, it's built into every NC trades engagement. Charlotte, NC
Frequently asked questions
Does RMI apply to my commercial customers too?
Yes. RMI taxability doesn't care whether the customer is a homeowner or a business (exempt entities like government have their own certificates). B2B service businesses are not exempt from collecting.
I'm a subcontractor, who charges the tax?
Depends on the chain and the job's classification; on real property contracts the GC/sub materials rules apply, on RMI work resale-and-recharge logic can run through the chain. This is precisely the 'bring your actual contracts' question, the general answer misleads.
What about jobs across the SC line?
South Carolina has its own rules (and its own maximum-tax quirks); the NC treatment stops at the border. Charlotte-metro businesses working both sides need both states configured, routine for us, given where we sit. Bookkeeping Services for Small Businesses
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