Sales and Use Tax Exemption for Electrical Generating Equipment
Administered by Indiana Department of Revenue
Indiana has no specific sales tax exemption for renewable energy equipment, and home solar or wind systems typically do not qualify because the electricity is not generated for sale, even if some power flows back to the utility grid. Expect to pay sales and use tax on residential equipment. Check with the Indiana Department of Revenue if you think your situation is different.
Equipment used to produce electricity for sale, such as wind turbine components and solar modules, racking, and inverters, may be exempt under Indiana's manufacturing exemption, but residential projects typically do not qualify. Transformers and monitoring equipment were ruled taxable, and DOR rulings only protect customers whose facts are substantially identical to those in the ruling. A customer claiming the exemption must give the seller a properly executed Indiana General Sales Tax Exemption Certificate, Form ST-105.
This is not a dedicated renewable energy incentive but an application of Indiana's gross retail tax exemption for equipment directly used in the direct production of tangible personal property, including electricity for sale. DOR has issued revenue rulings for wind (2009) and solar PV (2014) finding core generating components exempt and transformers and monitoring equipment taxable, while other technologies such as biomass, hydroelectric and landfill gas have no specific rulings. Targeted users are industrial and commercial electricity producers and manufacturers generating power for their own production, who claim the exemption at purchase via Form ST-105, with no separate funding since it is a tax exemption.
Program details
- Program ID
- 5106
- Last updated
- 9/4/2026
Eligibility
- Sectors
- industrial tribal government
- Technologies
- solar photovoltaics wind (all) biomass hydroelectric landfill gas wind (small)
Program summary
The Indiana Department of Revenue (DOR) has issued revenue rulings for wind energy and solar photovoltaics equipment in relation to the manufacturing exemption. In these two rulings, they found some components of the renewable energy systems to be exempt from the sales and use tax under the manufacturing exemption described above for the specific facts and circumstances described. However, DOR has not ruled on the specific components of other renewable energy systems. The rulings specifically note the caveat that "other taxpayers with substantially identical factual situations may rely on this ruling for informational purposes in preparing returns and making tax decisions. If a taxpayer relies on this ruling and the Department discovers, upon examination, that the fact situation of the taxpayer is different in any material respect from the facts and circumstances given in this ruling, then the ruling will not afford the taxpayer any protection. It should be noted that subsequent to the publication of this ruling a change in statute, regulation, or case law could void the ruling. If this occurs, the ruling will not afford the taxpayer any protection."
Wind Energy
In 2009, DOR issued a ruling specifically for wind turbines, clarifying that the foundation, tower, nacelle, gearbox, generator, yaw motors, blades and related component parts in the particular case considered were all exempt from the state sales and use tax because they were being directly used in the direct production of electricity for sale. However, the DOR ruled that that any "property which consists of or becomes part of a transformer in an electrical interconnection system for a wind turbine" are taxable because they would not be directly used in the direct production of electricity.
Solar PV
In 2014, the DOR issued a ruling specifically for solar PV arrays, clarifying that the modules, racking, and inverters in the particular case considered were all exempt from the state sales and use tax because they were being directly used in the direct production of electricity for sale. However, the DOR ruled that transformers were not exempt, as “use of transformers involves the economics of transmission and distribution, not production.” Further, monitoring equipment was found not to be exempt, because it “does not have an immediate impact on the production of electricity.”
Claiming the ExemptionSince equipment used in the production of renewable electricity is presumed to be subject to Indiana sales and use tax, a person claiming that they qualify for the manufacturing exemption would need to provide the Indiana seller with a properly executed Indiana General Sales Tax Exemption Certificate, Form ST-105.
Renewable energy property used in the production of electricity for residential use would typically not be exempt under the manufacturing exemption, even if all or part of the electricity generated reverts to the electrical grid of a utility, as the electricity is not being generated for sale.
Contact & resources
- Contact email
- taxpolicy@dor.in.gov
Please verify current program details with the administering agency before making any financial decisions.