North Dakota's incentives are narrower than some guides suggest, and utility choice matters a lot
The state income tax credit does not apply to individual homeowners buying solar today
North Dakota Century Code Section 57-38-01.8 provides an income tax credit for solar, wind, geothermal, and biomass energy devices, and several online guides describe this as if it's currently available to any homeowner. It is not, for individuals. The official North Dakota Office of State Tax Commissioner page confirms the individual credit applied to geothermal devices installed after December 31, 2008 and before January 1, 2015, and the broader solar and wind version followed a similarly dated eligibility window tied to installations before 2015. A separate corporate income tax credit under the same statute, equal to 3% of acquisition and installation cost per year for five years, remains on the books, but it applies to corporations, not individual homeowners buying a residential system in 2026. With that credit off the table, net metering and the property tax exemption below carry more of the weight in your overall math. If you're purchasing as an individual, don't budget for a state income tax credit.
The property tax exemption is real and valuable, but it is not automatic
Under N.D.C.C. Section 57-02-08(27), 100% of the value your solar system adds to your property is exempt from property tax assessment for five full assessment years. Unlike many states where this kind of exemption applies automatically once the system is installed, North Dakota requires you to file an Application for Property Tax Exemption of Solar, Wind, or Geothermal Devices with your local assessor, and this filing needs to happen annually across all five years, not just once at installation. Treat this as a recurring task on your calendar rather than a set-and-forget benefit, since missing a year's filing can mean losing that year's exemption even though you remain otherwise eligible.
Net metering exists statewide for three utilities, but excess power is not credited at retail
North Dakota has no net metering mandate that covers every utility. Per the Public Service Commission's own 1991 rule, N.D.A.C. Title 69, Article 69-09, net metering applies only to the state's three investor-owned utilities, Xcel Energy, Otter Tail Power, and Montana-Dakota Utilities, and covers systems up to 100 kW; rural electric cooperatives and municipal utilities are not required to participate at all, so if you're served by one of these, confirm whether any crediting program exists before you assume net metering applies to you. Where the rule does apply, some guides describe Xcel and Otter Tail as paying full retail for all excess power, which overstates what the rule actually requires: the structure is the same across all three utilities, crediting power you use within the month against your bill at the retail rate, but purchasing any net excess generation left over at the end of the billing period at the utility's avoided cost rate, commonly cited around 3 cents per kWh, a meaningful step down from a typical North Dakota retail rate near 10 to 11 cents per kWh. This utility-dependent spread, and the avoided-cost treatment of excess power specifically, is large enough that it should be the first thing you confirm, not an assumption you carry into your project math. Compare the overall picture against a neighboring state with the Montana incentive estimator or the Nebraska incentive estimator.
No sales tax exemption, no SREC market, and no statewide rebate
North Dakota does not exempt solar equipment from state sales tax, unlike many other states. There is also no statewide SREC market or renewable portfolio standard driving one, though some homeowners can pursue renewable energy credits informally through the SREC market price comparison tool's covered markets or the Midwest Renewable Energy Tracking System after Public Service Commission approval, with reported value varying widely and no guaranteed buyer, so this is closer to a speculative bonus than a reliable income line. No statewide cash rebate program exists either, which means the property tax exemption and your specific utility's net metering terms are effectively the two levers doing the real work in North Dakota's incentive picture.
With your rebate total in hand, the combined loan and rebate timing tool shows the monthly payment on the amount you still need to borrow.