Does Ohio charge a demand charge on EV charging?

Yes — AEP Ohio's Schedule GS bills about $20.39 per kilowatt-month on the monthly peak after percentage riders. The tariff's ratchet resolves to the current month for a site with a steady billed peak, and the coincident-peak pilots are opt-in rather than default.

Is there a per-kWh charging tax in Ohio?

Ohio's per-kWh electricity excise applies to the utility bill and is already folded into the modeled energy rate, not carried separately. There is no charging-specific tax on top of it. Installation labor, however, is taxable under Ohio's business-fixture doctrine and is carried in the sales-tax base.

ForgeAsset / Supercharger ROI / Ohio

Tesla Supercharger ROI in Ohio

Ohio pairs a deregulated-supply utility rate with the lightest entity-tax stack in the covered set. AEP Ohio's Schedule GS prices energy near 11.4 cents — auction-set standard supply plus delivery riders and the state's per-kWh electricity excise, all folded together — against a moderate demand charge. Against that, Ohio abolished its business tangible-personal-property tax years ago and charges no LLC annual fee, so two lines that run into the tens of thousands elsewhere are structural zeros. The one place Ohio adds cost is installation labor, which its business-fixture doctrine pulls into the sales-tax base.

Model a Ohio site

What makes Ohio economics distinct

Auction-set supply inside a flat rate

AEP Ohio's standard service offer is priced at a competitive auction and rides the bill as an energy rider, so the model folds it into a flat 11.4-cent energy rate along with delivery riders and the state's per-kWh electricity excise. The demand charge runs about $20.39 per kilowatt-month after percentage riders. The supply component resets at the next annual auction, expected around mid-2027.

The lightest entity stack in the covered set

Ohio abolished its general business tangible-personal-property tax, so the model carries $0 for business personal property — a line that runs $30,000–$56,000 a year in the heaviest states. Ohio also charges no LLC annual report or fee, and the Commercial Activity Tax exempts the first $6 million of gross receipts, which a single site never reaches. Three cost lines that exist elsewhere are simply absent.

Installation labor is taxable

Under Ohio's business-fixture doctrine, the sale-and-install of a charger is taxed on the total price including installation labor. At Columbus's 8% rate that roughly doubles the sales-tax line versus a hardware-only base. Make-ready civil work — trenching, foundations, service upgrades — can be certified as a real-property contract and kept out of the base; the model carries the full base by default and discloses the carve-out.

A rate case phasing in through 2028

AEP Ohio's rate case settled in 2026 with base rates and percentage riders stepping through 2027 and 2028. The model carries the current book and re-derives at each month-stamped edition. Municipal net-profits taxes — Columbus at 2.5% — reach the business but are owner-level items the engine does not model, disclosed rather than folded.

Utilities and tariffs modeled in Ohio

Utility & tariff	Energy	Demand
AEP Ohio Schedule GS	11.4¢/kWh flat	$20.39/kW of monthly peak

Rates are digit-verified against each utility's own filed sheets and update within two weeks of any revision. Full derivations are on the methodology page.

Ohio tax profile

Sales tax on hardware: 8%
Business personal property tax: none
Clean-fuels credit: no program
Per-kWh charging excise: none

Ohio tax defaults applied: no clean-fuels credit program exists in Ohio (the LCFS revenue line is $0), and LLC costs are $0 — Ohio has no annual report or fee. Sales tax uses Columbus's 8.00% and, under Ohio's business-fixture doctrine, applies to installation labor as well as hardware; make-ready civil work certified as a real-property contract stays outside the base. Business personal property is not taxed in Ohio. Ohio's per-kWh electricity excise is already inside the modeled utility rate. The Commercial Activity Tax exempts the first $6 million of gross receipts, so a single site owes none; Ohio's state and municipal net-profits taxes (Columbus 2.5%) reach the business but are owner-level items the engine does not model.

Ohio programs and incentives

AEP Ohio commercial charger programs

Utility make-ready and rebate offerings for commercial charging vary by program cycle; a specific award enters the model through the grant inputs. AEP's Schedule PEV public-charging pilot is capped at 500 customers and is not the modeled rate.

NEVI (federal, ODOT-administered)

Federal corridor DC fast-charging funding along I-70, I-71, I-75, and I-90, administered in award rounds.

Ohio charging market

Ohio carries roughly 58 Supercharger stations along I-70, I-71, and I-75. AEP Ohio (Ohio Power Company) serves the Columbus metro. Cleveland is served by the Illuminating Company, Cincinnati by Duke Energy Ohio, Dayton by AES Ohio, and Akron and Toledo by other FirstEnergy operating companies — none of which the model covers yet; addresses there see a named-utility notice rather than a wrong auto-selection.

Ohio Supercharger ROI — questions

Does Ohio charge a demand charge on EV charging?: Yes — AEP Ohio's Schedule GS bills about $20.39 per kilowatt-month on the monthly peak after percentage riders. The tariff's ratchet resolves to the current month for a site with a steady billed peak, and the coincident-peak pilots are opt-in rather than default.
Is there a per-kWh charging tax in Ohio?: Ohio's per-kWh electricity excise applies to the utility bill and is already folded into the modeled energy rate, not carried separately. There is no charging-specific tax on top of it. Installation labor, however, is taxable under Ohio's business-fixture doctrine and is carried in the sales-tax base.
What does Ohio not tax that other states do?: Ohio abolished its business tangible-personal-property tax, so business personal property is $0, and there is no LLC annual report or fee. The Commercial Activity Tax exempts the first $6 million of gross receipts, so a single site owes none. Municipal net-profits taxes reach the business but are owner-level items the engine does not model.

Sources

Model a Tesla V4 Supercharger site in Ohio — payback, NPV, IRR, and a 15-year cash flow from your own inputs.

Run a Ohio scenario

Other states: California, North Carolina, Georgia, Oregon, Pennsylvania, Florida, Arizona, Texas, Virginia, Illinois, Michigan, Tennessee, Montana, Idaho, Kansas, Nebraska, North Dakota, South Dakota, Wyoming, New Mexico, Oklahoma, Alabama, Missouri, Wisconsin, Iowa, Indiana, Louisiana, Nevada, Washington, Utah, New Hampshire, Kentucky. Coverage spans thirty-three states in total — see the full list.

ForgeAsset is software, not investment, tax, or legal advice — outputs are model estimates from your inputs, not guarantees. Rates and programs current as of research; verify current terms with each source before committing capital.