North Carolina Sales Tax Exemption for Solar Equipment

North Carolina provides a sales tax exemption for certain solar energy equipment, reducing the upfront acquisition cost for qualifying systems installed across the state. This page covers the statutory definition of the exemption, which equipment categories qualify, how the exemption interacts with residential versus commercial purchases, and where the boundaries of coverage end. Understanding these distinctions is essential for anyone structuring a solar transaction under North Carolina law.

Definition and scope

North Carolina General Statutes § 105-164.13 enumerates exemptions from the state's general sales and use tax (N.C.G.S. § 105-164.13, North Carolina General Assembly). Within that statute, solar energy equipment sold at retail is exempt from the 4.75% state sales tax rate, as well as applicable local rates that can bring the combined rate to 7.5% in certain counties.

The exemption covers equipment used to generate, control, store, or distribute solar energy. Qualifying items include photovoltaic panels, inverters, mounting hardware, wiring used in the solar circuit, charge controllers, and battery storage systems integrated into a solar installation. Equipment that serves a dual purpose unrelated to energy generation — such as general electrical conduit or structural roofing components — does not automatically qualify simply because it is installed alongside solar panels.

Scope limitations: This page addresses only North Carolina state-level sales and use tax law as administered by the North Carolina Department of Revenue (NCDOR). It does not address federal tax treatment, utility interconnection fees, permit fees, or the separate North Carolina solar property tax exemption. Buyers in South Carolina, Virginia, or Tennessee are outside the coverage of this analysis. Situations involving tax-exempt nonprofit purchasers involve separate exemption pathways under N.C.G.S. § 105-164.13 and are not the primary focus here.

For a broader picture of the incentive landscape in the state, the North Carolina solar incentives and tax credits overview provides complementary context.

How it works

The solar equipment sales tax exemption operates as a point-of-sale exemption, meaning the retailer or installer does not collect state or local sales tax on qualifying items at the time of purchase. The buyer does not submit a separate rebate application after the fact. Instead, the purchasing party typically provides the seller with a completed Form E-595E (Streamlined Sales and Use Tax Agreement Certificate of Exemption) citing the applicable statutory exemption, allowing the seller to document the tax-exempt transaction in their records (NCDOR Form E-595E).

The mechanics break into four discrete phases:

1. Pre-purchase classification — The buyer and seller identify which line items in the contract correspond to qualifying solar equipment versus taxable labor, non-qualifying materials, or general construction supplies.
2. Exemption certificate execution — The buyer completes Form E-595E before or at the point of sale, specifying the exemption reason.
3. Seller record retention — The seller retains the certificate and excludes qualifying items from taxable gross receipts reported to NCDOR.
4. Post-sale audit risk — If NCDOR audits the seller and the exemption certificate is missing or the equipment is subsequently determined non-qualifying, the seller becomes liable for the uncollected tax plus interest and penalties.

Labor charges for installation are generally taxable as a service unless the contract is structured as a lump-sum contract under specific conditions. Contracts where materials and labor are billed separately (itemized contracts) make the equipment exemption most straightforward to apply.

Understanding how solar systems function technically supports correct equipment classification. The conceptual overview of how North Carolina solar energy systems work explains component relationships that inform these distinctions.

Common scenarios

Residential rooftop installation: A homeowner contracts with a licensed solar installer. The contract itemizes photovoltaic modules, an inverter, racking, and DC/AC wiring separately from labor. The installer does not charge sales tax on the equipment line items. Labor remains taxable. The homeowner is not required to file anything with NCDOR independently; the installer manages the exemption certificate on file.

Commercial ground-mount system: A business purchases a 200 kW ground-mount array. Because the system qualifies under the same N.C.G.S. § 105-164.13 exemption regardless of system size, the commercial buyer executes Form E-595E covering panels, racking, inverters, and integrated monitoring hardware. Fencing, access roads, and non-solar electrical infrastructure do not qualify. Commercial solar systems in North Carolina involve additional permitting and utility coordination layers beyond the tax exemption.

Battery storage added to an existing system: A property owner purchases a standalone battery storage unit to retrofit an existing solar installation. The exemption extends to battery storage systems when they are part of or integrated with a solar generation system. A battery purchased solely for backup power without any solar integration connection presents a more ambiguous classification that NCDOR may scrutinize.

Agricultural solar installation: A farm adds solar panels to power irrigation equipment. Agricultural solar projects qualify for the same equipment exemption. Agricultural solar in North Carolina can also intersect with separate agricultural equipment exemptions, and the correct exemption basis should be confirmed with a tax professional.

Leased systems: When a third-party owner leases a system to a property owner, the third-party owner — not the lessee — is the purchaser of the equipment. The lessee's monthly lease payments are generally subject to sales tax as a service or rental transaction; the equipment purchase exemption applies at the level of the system owner's original acquisition. North Carolina solar lease versus purchase structures affect how sales tax flows through the transaction.

Decision boundaries

The central classification question is whether a given item is equipment "used to generate, control, store, or distribute solar energy." The table below summarizes the key contrasts:

The regulatory context for North Carolina solar energy systems provides additional grounding on how NCDOR, the North Carolina Utilities Commission, and the State Energy Office interact across the solar regulatory landscape, which bears on how equipment classifications are developed and challenged.

Two additional boundaries merit attention. First, the exemption does not eliminate local option sales tax in all cases; while the state 4.75% rate is exempted, buyers should confirm how local county rates interact, as the statutory language and NCDOR guidance govern the full combined rate treatment. Second, equipment purchased outside North Carolina and imported for use in a North Carolina installation may be subject to use tax under N.C.G.S. § 105-164.6, with the same exemption logic applying to offset the use tax liability — but the documentation burden falls on the buyer rather than the out-of-state seller.

The North Carolina solar authority home provides navigational context across all major topic areas covered within this resource.

References

• N.C.G.S. § 105-164.13 — Retail Sales and Use Tax Exemptions, North Carolina General Assembly
• North Carolina Department of Revenue (NCDOR) — Sales and Use Tax
• NCDOR Form E-595E — Streamlined Sales and Use Tax Agreement Certificate of Exemption
• N.C.G.S. § 105-164.6 — Use Tax, North Carolina General Assembly
• North Carolina State Energy Office — Renewable Energy