Opportunity Zone data centers in Arizona

Yes, and the federal tax benefits work the same way in Arizona as anywhere else, but in 2026 the constraints are local: which tracts make the 2027 map, whether a utility can serve the load, and how a site handles water and community scrutiny. A Qualified Opportunity Fund (QOF) is an investment vehicle that holds at least 90% of its assets in Qualified Opportunity Zone property, and investors who put eligible capital gains into a QOF within 180 days can defer and partly reduce that gain and, after 10 years, exclude the fund's appreciation from tax.¹ Data centers are not on the excluded "sin business" list, so a data center owned by a Qualified Opportunity Zone Business (QOZB) can qualify.¹

Four Arizona facts frame every deal in 2026. The state's zone nominations were submitted early, so the new map should be among the first certified. Arizona follows the federal Opportunity Zone rules for its own income tax. Its data center sales tax exemption closed to new applicants on July 1, 2026.²⁰ And the Phoenix utilities have told the Arizona Corporation Commission that requests from large loads exceed their ability to serve.¹⁴ For a full overview of how the program applies to the asset class, see data centers in Opportunity Zones.

Arizona's new zones will be the tracts the governor nominated in July 2026 and Treasury certifies, effective January 1, 2027 through December 31, 2036; the certified list had not been published as of October 22, 2026. Under the current rules a governor may designate the greater of 25% of the state's eligible low-income community tracts or 25 tracts.¹ Treasury's list of eligible tracts appears in Rev. Proc. 2026-14, which identified 25,332 eligible tracts nationally, 8,334 of them wholly rural.²

The Arizona Commerce Authority (ACA) ran the state's recommendation process. It asked counties, larger cities in Maricopa, Pima and Pinal counties, and tribes to recommend about one quarter of their eligible tracts by June 19, 2026, and said Arizona's allotment was 125 tracts.³ County materials described roughly 500 qualifying tracts statewide.³ Governor Katie Hobbs made the final selection. Bisnow reported that Arizona was the first state to submit, on July 7, 2026, nominating 125 tracts including three that were not on Treasury's eligible list; such off-list tracts need tract-level data proving they meet the low-income test.⁴ Novogradac has published the nominated list with each tract's county and rural status.⁵

• Treat a tract as usable for a new project only after it appears on Treasury's certified list. Under Notice 2026-40, zones on the current map generally expire December 31, 2028, and property acquired after 2026 in a tract that is not redesignated generally does not qualify.⁶
• Rural status matters. A Qualified Rural Opportunity Fund (QROF), a QOF holding at least 90% of its assets in zones made up entirely of rural area, gives investors a 30% basis step-up after five years instead of 10%, and buildings in wholly rural zones need only 50% substantial improvement.⁷
• A "rural area" is anywhere outside a city or town of more than 50,000 people and its adjacent urbanized area. In Arizona that excludes most of the Phoenix, Tucson and Yuma urban areas; rural tracts are concentrated in counties such as Pinal, Mohave, Cochise and the northern counties, but status is determined tract by tract.^7,5

Use the Opportunity Zone maps and data tools guide to check a parcel, and the new Opportunity Zone maps taking effect in 2027 for the national process.

Arizona generally follows the federal Opportunity Zone deferral, step-up and exclusion, because its income tax starts from federal adjusted gross income and adopts the Internal Revenue Code as of a fixed date. H.B. 4168, signed June 13, 2026 with the fiscal 2027 budget, moved that date to January 1, 2026 for tax years beginning after December 31, 2025.^8,9 That date falls after the July 4, 2025 amendments to §1400Z-2, so the rolling five-year deferral and the 10% and 30% step-ups are part of the code Arizona adopts. We found no Arizona add-back for Opportunity Zone gains, which is consistent with our state tax treatment of Opportunity Zone investments guide.

Arizona taxes individual income, including capital gains, at a flat 2.5%.¹⁰ Residents may also subtract 25% of net long-term capital gain included in federal adjusted gross income from assets acquired after December 31, 2011, which lowers the effective rate on qualifying gains to about 1.875%.¹² Whether that subtraction applies to a deferred gain when it is included at year five depends on the asset and the facts; confirm with your tax adviser.

Illustrative example. An Arizona resident sells a business in 2027 with a $10,000,000 long-term capital gain and invests it in a QOF within 180 days. Assumptions: 23.8% federal rate (20% plus 3.8% net investment income tax), Arizona at 2.5% without the 25% subtraction, no decline in the fund's value, and continued state conformity.

Arizona's low rate means the state piece is small: about 10% of the combined bill. For an Arizona investor, the decision turns on the federal benefits. The federal math is detailed in Opportunity Zone tax savings: a worked example.

Greater Phoenix is one of the largest data center markets in North America, and the pipeline is several times its built inventory. CBRE reported 602.8 MW of Phoenix inventory at the end of 2024, up 67% in a year, with vacancy at a record-low 1.9% after 245.5 MW of absorption.¹¹ CBRE's H2 2025 report described large colocation projects in Mesa, Phoenix, Avondale, Goodyear and Glendale expected to complete within about 12 months.¹³

• Mesa and Chandler in the East Valley are established hubs; Apple and Meta both own clusters of data centers in Mesa, largely in Salt River Project territory.²⁴
• Goodyear, Avondale and Glendale in the West Valley have the largest blocks of entitled industrial land and are served largely by APS.¹³
• The Phoenix-to-Tucson corridor in Pinal County holds the biggest proposed campuses, including Vermaland, a proposed 3 GW campus on 3,300 acres reported to sit in a Qualified Opportunity Zone on the current map.²⁵
• Tucson and Pima County, served by Tucson Electric Power (TEP), are smaller and politically contested.^16,17

Demand comes from hyperscale cloud and AI tenants, low natural disaster risk, and proximity to California users without California's costs. EPRI's 2026 projections name Arizona among seven states where data centers could exceed 20% of state electricity use by 2030.¹⁵ That share is both the opportunity and the reason regulators and the Attorney General are pushing back.

Arizona's main data center incentive, a sales and use tax exemption on equipment, is closed to new applicants until mid-2029, so a new Opportunity Zone project in Arizona should be modeled without it. The Computer Data Center program under A.R.S. §41-1519, administered by the ACA with the Department of Revenue, exempts qualifying data center equipment from state, county and city transaction privilege and use taxes for up to 10 years, or up to 20 years for a certified sustainable redevelopment project.²² The budget Governor Hobbs signed, effective July 1, 2026, imposes a three-year moratorium on new applications, including renewals; existing certificate holders are not affected, and the governor's office estimated savings of about $57 million.^20,21

A sales tax exemption reduces the cost of improvements, which also lowers the additions to basis that count toward the 30-month substantial improvement test for a converted building. For a project that already holds an Arizona certificate, the exemption usually benefits whoever buys the equipment, often the tenant. See state data center tax incentives and Opportunity Zones for how other states compare.

Not quickly, in most cases; power is the critical path for any Arizona data center and the main reason to choose a site where service is already committed. At an April 2026 Arizona Corporation Commission workshop, APS and SRP said demand from prospective large-load and data center customers exceeds their capacity to serve. SRP reported 59 large-load customers totaling nearly 7,000 MW, and APS projected about 13.1 GW of large-customer peak demand.¹⁴ In 2025, APS reported close to 4.5 GW of committed high-load-factor demand in its queue and about 20 GW more uncommitted, as both utilities signed up for new gas pipeline capacity.²³

• APS is regulated by the Corporation Commission. It and SRP have proposed an extra-high-load-factor rate, a bring-your-own-power option that assigns new generation costs to the customer, and standard contracts with up-front financial security.¹⁴
• SRP is a public power district that sets its own rates; it is not rate-regulated by the Commission, but it presented at the same workshop.¹⁴
• TEP serves Tucson. The Commission approved a special energy supply agreement for the Project Blue campus in Pima County in December 2025 by a 4-1 vote, with deliveries starting in 2027 and about 286 MW by 2028; the Attorney General sought rehearing.¹⁶

For Opportunity Zone timing, the issue is the 31-month working capital safe harbor, extendable to 62 months for start-ups. Utility study and construction delays are not clearly the kind of governmental permitting delay that tolls the clock, so a QOZB that raises cash before power is committed risks holding idle cash past the safe harbor. Phase the equity to the power schedule. See data center power timelines and the Opportunity Zone clock.

Water, community approval and power together screen out more Arizona sites than zone status does. The Interior Department cut Arizona's Colorado River supply by nearly 30%, a point the Attorney General cited on August 31, 2026 when she called for a statewide pause on approval and construction of new data centers, especially hyperscale AI projects.¹⁹ A pause would require legislation, and none had passed as of this review.

Water use is contested but manageable with the right design. A Ceres analysis estimated Phoenix data centers used about 385 million gallons a year for cooling, with use projected to rise nearly tenfold as planned capacity is built.²⁶ Water experts interviewed by KJZZ in September 2026 said data centers are not the cause of the state's Colorado River cuts and use less water than often assumed.²⁷ Grist found industrial users in Mesa accounted for about 6% of the city's potable water use in 2024.²⁴ New hyperscale designs increasingly use closed-loop, zero-evaporation cooling; Microsoft says all its new designs since August 2024 use it.²⁸ Closed-loop systems use more electricity, which pushes the problem back to power. See water and cooling for Opportunity Zone data centers.

Local politics now shapes Arizona siting. Tucson's city council voted unanimously in August 2025 to end Project Blue within the city.¹⁷ Pima County adopted a 120-day moratorium on new data center projects in unincorporated areas in September 2026.¹⁸ Rural tracts in Pinal and Yuma counties offer land and the rural fund benefits, but they need transmission, a water plan and county approval. National proposals to remove data centers from Opportunity Zone benefits, including a bill introduced by Sen. Josh Hawley in September 2026, had not been enacted.²⁹

For investors, Arizona residence adds little to the cost of deferral and keeps the 10-year exclusion; for landowners and developers, the value lies in sites that combine a certified 2027 tract with committed power.

• Arizona investors: state tax follows federal deferral at 2.5%, so the after-tax case matches the federal case closely. Gains invested on or after January 1, 2027 get the rolling five-year deferral and the 10% or 30% step-up.¹
• Out-of-state investors: your residence state, not Arizona, usually decides state deferral. California residents, for example, get no state deferral; see our conformity guide.
• Landowners: land in a nominated rural tract with transmission access is the scarce asset. Selling to a QOZB, or contributing land under a market-rate ground lease from an unrelated owner, are the common structures; see Opportunity Zones for landowners.
• Developers: plan without the state equipment exemption, secure a utility commitment before raising QOF equity, and avoid a single-tenant triple-net powered shell, which risks failing the active trade or business requirement.³⁰

Dentons and other firms note that the rural fund step-up and the 50% substantial improvement rule make rural data center sites more attractive.³⁰ In Arizona, the rural sites that also have power and water rights are few. OZ Data Centers sponsors data center projects of this kind; if you hold Arizona land or gains, talk to our team.