Wisconsin · Tax exemption · Deep-stack program

WI Solar Property Tax Exemption

Removes a tax burden residential solar owners in Wisconsin would otherwise carry -- see what it covers, eligibility, and payback impact below.

Full property tax exemption
stated benefit
Residential
eligible customers
14.2 yr
Wisconsin baseline payback
3
other Wisconsin programs
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Deep-stack program · mid directory

Wisconsin runs a 4-program DSIRE stack; this tax exemption is one layer on a 14.2-year modeled baseline, not the whole story.

  • Stack4 programs
  • In-state #2/3
  • Type #44/45
  • Baseline14.2 yr

In-state directory place #2 of 3 (mid alphabet). National tax exemption directory #44 of 45. Amounts and eligibility change; verify with the official program page before relying on a dollar figure. Informational only - not financial advice. See our disclaimer.

Program description

Wisconsin exempts solar energy systems from local property taxes.

Program at a glance

Program type
Tax exemption
Eligible customers
Residential
Stated benefit
Full property tax exemption
State electricity rate
16.5¢/kWh
Wisconsin solar score
24/100

Solar's trajectory in Wisconsin

The market this incentive operates in: total installed solar capacity in Wisconsin reported to the EIA.

0 MW500 MW1.0 GW1.5 GW2.0 GW2.5 GW 20142015201620172018201920202021202220232024 2.1 GW
Wisconsin now has about 2.1 GW of installed solar, the backdrop programs like this one are built on.

Source: U.S. Energy Information Administration, installed solar nameplate capacity As of 2024

Wisconsin's solar incentive stack

How this tax exemption sits among Wisconsin's 3 tracked programs, by type

programs

What this shows Wisconsin tracks 3 incentive types; 1 are tax exemptions like this one, removing a cost solar owners would otherwise carry, on top of the state's other program types.

Source DSIRE incentives registry As of 2024

How this tax exemption layers inside Wisconsin's deep stack

The WI Solar Property Tax Exemption removes a tax burden solar owners would otherwise carry, one of Wisconsin's DSIRE-tracked solar incentive programs. Eligibility is scoped to residential customers, with a stated benefit of Full property tax exemption. DSIRE lists no scheduled sunset, though enabling legislation and appropriations can still be revised year to year.

That baseline is slower than most states, which raises the stakes for every incentive on the table. Wisconsin averages 4.3 kWh/m²/day of usable sunlight and residential rates of 16.5¢/kWh, producing an estimated 7,534 kWh/year and $1,243 of annual utility offset on a typical 6 kW system costing $17,700. That baseline already implies a 14.2-year simple payback and a 25-year modeled net of roughly $13,375 before this incentive - every dollar this tax exemption delivers compresses that payback further.

Wisconsin bundles a deep incentive stack, so this program rarely stands alone. Wisconsin has 4 solar incentive programs indexed in DSIRE, including adjacent options like WI Net Metering, Wisconsin Focus on Energy Renewable Incentive. The state's net-metering policy is classified as full, which governs how excess generation is credited and often decides whether a given program is worth claiming for a specific household.

Frequently asked questions

Where does the WI Solar Property Tax Exemption sit in Wisconsin's deep program stack?
The WI Solar Property Tax Exemption is a tax exemption available to residential solar customers in Wisconsin. The stated benefit is Full property tax exemption.
How does this tax exemption work beside Wisconsin's other programs?
Wisconsin exempts solar energy systems from local property taxes.
Who is eligible for the WI Solar Property Tax Exemption?
The program is available to residential customers in Wisconsin. Check the official program page for current eligibility requirements and deadlines. In-state directory place #2 of 3 (mid alphabet).
How does this incentive affect solar ROI in Wisconsin?
Wisconsin has an estimated 14.2-year payback for a 6 kW system before incentives, with about $1,243/year in modeled savings. A tax exemption like this lowers upfront cost or raises annual return, shortening that payback. Run the calculator for a figure based on your own bill.
Which other Wisconsin programs stack with this one?
Wisconsin has 4 solar incentive programs tracked in DSIRE, including WI Net Metering, Wisconsin Focus on Energy Renewable Incentive. State programs are designed to stack on top of any available federal solar tax credit rather than replace it.

Incentive data from the DSIRE (Database of State Incentives for Renewables & Efficiency); state solar economics from NREL and the U.S. EIA. See our methodology · Wisconsin solar data · ROI calculator · All incentives.