ForgeAsset / Supercharger ROI / New Hampshire
Tesla Supercharger ROI in New Hampshire
New Hampshire is the first covered state whose income tax reaches the charging entity itself. The Business Profits Tax applies at 7.5% to an LLC's own profits regardless of pass-through — the model's first state entity income-tax line. Against that, two lines that cost money elsewhere are structural zeros: New Hampshire has no sales tax and no business personal property tax. The utility rate is Eversource's Rate GV, whose energy folds a trailing-twelve-month default supply price that runs high on the winter strip.
What makes New Hampshire economics distinct
A tax on the entity's profits
New Hampshire's Business Profits Tax applies at 7.5% to the business's own profits, and unlike most states' income taxes it reaches the LLC directly rather than only its owners. The model carries it as the state income-tax line, approximated on positive annual operating cash — loss years bill nothing, and no loss carryforward is modeled. A separate Business Enterprise Tax adds a small amount creditable against the profits tax, disclosed rather than separately modeled.
A winter spike in the supply price
Eversource's Rate GV folds a default-supply price set as a trailing-twelve-month average of filed monthly values. The current window runs high — December and January print near 18 to 20 cents per kWh — lifting the folded energy rate to about 12.5 cents. The most recent six-month strip published in June 2026, and the price re-derives across its full window at every library refresh.
No sales tax, no property tax
New Hampshire levies no sales or use tax, so installation labor and hardware both fall outside any sales-tax base — a structural zero. It also taxes no business personal property, zeroing a line that runs into the tens of thousands in the heaviest states. The state's cost weight concentrates in the Business Profits Tax and the electricity price itself.
A demand charge on a weekday window
Rate GV bills demand at about $22.13 per kilowatt-month on the greater of the on-peak maximum inside a 7 a.m.–8 p.m. weekday window or half the off-peak maximum, with no ratchet. The window coincides with a charging site's daily peak, so the model folds it as a per-kilowatt charge on the monthly maximum.
Utilities and tariffs modeled in New Hampshire
| Utility & tariff | Energy | Demand |
|---|---|---|
| Eversource NH Rate GV | 12.5¢/kWh flat | $22.13/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.
New Hampshire tax profile
- Sales tax on hardware: 0%
- Business personal property tax: none
- Clean-fuels credit: no program
- Per-kWh charging excise: none
New Hampshire tax defaults applied: no clean-fuels credit program exists in New Hampshire (the LCFS revenue line is $0), and there is no sales tax or business personal property tax — both structural zeros. New Hampshire's Business Profits Tax applies at 7.5% to the entity's own profits, which the model carries as the state income-tax line (approximated on positive annual operating cash — loss years bill nothing, and no loss carryforward is modeled). The Business Enterprise Tax of 0.55% adds a small amount creditable against the profits tax and is not separately modeled. LLC costs use the $100 annual report.
New Hampshire programs and incentives
NHSaves commercial charging support
Utility make-ready and efficiency offerings for commercial customers vary by program cycle; a specific award enters the model through the grant inputs.
NEVI (federal, NHDOT-administered)
Federal corridor DC fast-charging funding along I-93, I-89, and I-95, administered in award rounds.
New Hampshire charging market
New Hampshire carries roughly 20 Supercharger stations along I-93 and I-95. Eversource serves Manchester, Nashua, Concord's neighbors, and Portsmouth. Concord and the Seacoast are served by Unitil, the Derry and Salem area by Liberty Utilities, and the North Country by the New Hampshire Electric Cooperative — none of which the model covers yet; addresses there see a named-utility notice rather than a wrong auto-selection.
New Hampshire Supercharger ROI — questions
- Does New Hampshire tax the charging business?
- Yes — the Business Profits Tax applies at 7.5% to the LLC's own profits regardless of pass-through, which the model carries as the state income-tax line (approximated on positive annual operating cash; loss years bill nothing). There is no sales tax and no business personal property tax, so those lines are structural zeros.
- Why is the New Hampshire energy price so high in the model?
- Eversource's default supply price is a trailing-twelve-month average of filed monthly values, and the current window runs high on the winter months — December and January print near 18 to 20 cents per kWh. That lifts the folded energy rate to about 12.5 cents. The price re-derives across its full window at every library refresh.
- Is there a per-kWh charging tax in New Hampshire?
- No — none is in force and none was found pending, and New Hampshire has no sales tax on electricity either. A road-usage study reports at the end of 2026; any per-kWh outcome would land on the model's excise line as a configuration change from its effective year.
Sources
- Eversource — New Hampshire electric delivery tariff (NHPUC No. 11)
- New Hampshire DRA — business taxes
- AFDC — New Hampshire laws & incentives for electricity
Model a Tesla V4 Supercharger site in New Hampshire — payback, NPV, IRR, and a 15-year cash flow from your own inputs.
Run a New Hampshire scenarioOther 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, Ohio, Utah, 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.