Arizona · Tax credit

AZ Residential Solar Tax Credit

Reduces residential solar owners' tax liability in Arizona -- see the credit amount, who qualifies, and how it shortens payback below.

25% of cost, max $1,…
stated benefit
Residential
eligible customers
10.3 yr
Arizona baseline payback
4
other Arizona programs

What it means

In Arizona, a 6 kW system already pays back in about 10.3 years on ~$1,537/year of modeled savings, and the AZ Residential Solar Tax Credit stacks on top of that, on top of any federal credit.

25% of cost, m…
stated benefit
10.3 yr
baseline payback (pre-incentive)
5
Arizona programs that stack
full
net-metering policy

Payback and savings are modeled from public NREL/EIA data; the program benefit is summarized from DSIRE and may change.

Program description

State income tax credit of 25% for residential solar systems, up to $1,000 per year.

Program at a glance

Program type
Tax credit
Eligible customers
Residential
Stated benefit
25% of cost, max $1,000
State electricity rate
13.5¢/kWh
Arizona solar score
61/100
Visit the official program page

How Arizona compares to the U.S. average

Why this incentive matters more (or less) here - Arizona's solar fundamentals against the national average.

Irradiance
Arizona: 6.5 kWh/m²/day
U.S. avg: 4.82 kWh/m²/day
Electricity rate
Arizona: 13.5¢/kWh
U.S. avg: 15.98¢/kWh
Modeled payback
Arizona: 10.3 yr
U.S. avg: 14.2 yr

Source: NREL irradiance and U.S. EIA rates; payback modeled by PlainSolarData. Bars are scaled to the larger of the two values per metric.

Solar's trajectory in Arizona

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

-2000 MW0 MW2.0 GW4.0 GW6.0 GW 19972001200520092013201720212024 5.3 GW
Arizona now has about 5.3 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

Arizona's solar incentive stack

How this tax credit sits among Arizona's 4 tracked programs, by type

programs

What this shows Arizona tracks 4 incentive types; 1 of them, including this one, are tax credits. Credits reduce what solar owners owe directly, on top of whatever the other stacked types provide.

Source DSIRE incentives registry As of 2024

How this incentive fits Arizona's solar picture

The AZ Residential Solar Tax Credit is a state-level credit against what you owe, tracked as one of Arizona's solar incentives in the DSIRE registry. Eligibility is scoped to residential customers, with a stated benefit of 25% of cost, max $1,000. 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. Arizona averages 6.5 kWh/m²/day of usable sunlight and residential rates of 13.5¢/kWh, producing an estimated 11,388 kWh/year and $1,537 of annual utility offset on a typical 6 kW system costing $15,900. That baseline already implies a 10.3-year simple payback and a 25-year modeled net of roughly $22,525 before this incentive - every dollar this tax credit delivers compresses that payback further.

A handful of other levers are worth checking alongside this one. Arizona has 5 solar incentive programs indexed in DSIRE, including adjacent options like AZ Solar Property Tax Exemption, AZ Net Energy Metering, APS Renewable Energy Incentive Program. 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.

Your next step

  • See Arizona's full solar profile, score, irradiance, rates, payback, and every program you can claim. Arizona solar data
  • Run the savings calculator with your real bill to see how this incentive changes your own payback. ROI calculator
  • Read how state and federal solar credits work together. Tax-credit guide

Estimates here are modeled from public data and are not financial advice; confirm program terms and your own eligibility before relying on a dollar figure.

Frequently asked questions

What is the AZ Residential Solar Tax Credit?
The AZ Residential Solar Tax Credit is a tax credit available to residential solar customers in Arizona. The stated benefit is 25% of cost, max $1,000.
How does the AZ Residential Solar Tax Credit work?
State income tax credit of 25% for residential solar systems, up to $1,000 per year.
Who is eligible for the AZ Residential Solar Tax Credit?
The program is available to residential customers in Arizona. Check the official program page for current eligibility requirements and deadlines.
How does this incentive affect solar ROI in Arizona?
Arizona has an estimated 10.3-year payback for a 6 kW system before incentives, with about $1,537/year in modeled savings. A tax credit like this lowers upfront cost or raises annual return, shortening that payback. Run the calculator for a figure based on your own bill.
Are there other solar incentives in Arizona?
Yes - Arizona has 5 solar incentive programs tracked in DSIRE, including AZ Solar Property Tax Exemption, AZ Net Energy Metering, APS Renewable Energy Incentive Program. 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.