Arizona sales tax exemption for AI data centers

In short

Arizona’s Computer Data Center Program exempts state and local transaction privilege tax (TPT, Arizona’s sales tax) and use tax on equipment for certified computer data centers. A.R.S. § 41-1519, A.R.S. § 41-1519(O)(14), A.R.S. § 42-5159(B)(24), A.R.S. § 42-6004(A)(13) An owner, operator, or qualified colocation tenant can claim the tax relief if the Arizona Commerce Authority (ACA) certifies the facility. ACA CDC Program Rules § VIII A new computer data center in a county with a population of more than eight hundred thousand persons must invest $50 million on or before the fifth anniversary of certification. In counties with populations of eight hundred thousand or less, the floor is $25 million. Existing computer data centers needed $250 million of investment during the seventy-two months immediately before September 1, 2013. A.R.S. § 41-1519(E) There is no job creation requirement. A.R.S. § 41-1519 The exemption lasts until the end of the tenth full calendar year following the calendar year containing the effective date (or the twentieth for a sustainable redevelopment project). A.R.S. § 41-1519(O)(11)(a) The program costs Arizona’s general fund $38.5 million in fiscal year 2025 and is projected to reach at least $60 million by fiscal year 2027. Grand Canyon Institute New applications are open until December 31, 2033, though several 2026 bills seek to repeal or shorten the program. A.R.S. § 41-1519, HB 2119, HB 2702, SB 1799, SB 1463

What is the Arizona sales tax exemption for computer data centers?

Arizona does not charge sales tax on equipment for a certified computer data center, which we call an AI data center in this article. The exemption is a deduction from the state’s transaction privilege tax (TPT), Arizona’s version of a sales tax, and from the companion use tax. It applies at the state, county, and city levels. The Arizona Commerce Authority (ACA) and the Arizona Department of Revenue (ADOR) run the program together. The rules live in A.R.S. § 41-1519 and the ACA Computer Data Center Program Rules.

A computer data center is all or part of a facility that mainly houses working servers. It may include backup power, cooling systems, towers, and temperature control. A.R.S. § 41-1519(O)(1)

The tax relief covers the sale, use, installation, assembly, repair, and maintenance of computer data center equipment. That means the equipment itself, plus parts, upgrades, and replacements. The equipment can be fixed to the building or not, and it can be owned, leased, or used under a right to use contract. A.R.S. § 41-1519(O)(2), (14), A.R.S. § 42-5061(B)(23) The program began in 2013 and was extended in 2021 to allow new certifications through the end of 2033. AZ HB 2649, A.R.S. § 41-1519, Axios Phoenix, Arizona Commerce Authority, DCD

Who qualifies for the exemption?

The exemption applies to the owner or operator of a certified computer data center, to qualified colocation tenants, and, under certain conditions, to an authorized agent of the owner, operator or qualified colocation tenant. A.R.S. § 41-1519(A), A.R.S. § 42-5061(B)(23), A.R.S. § 42-5159(B)(24), A.R.S. § 42-5075(B)(8), Industry analysis

The owner or operator

The company that owns or runs the AI data center must first get ACA certification. There is no requirement to create a certain number of jobs, which is different from most other state AI data center incentives. This makes Arizona’s program comparatively simple to enter. A.R.S. § 41-1519

The qualified colocation tenant

A colocation tenant rents space and power inside a multi tenant AI data center. Arizona’s law expressly includes colocation tenants. To qualify, the tenant must sign an agreement to use at least 500 kilowatts of power per month for at least two years. The tenant applies for its own certification through the ACA, and its tax relief runs for the length of its contract (up to 10 or 20 years, depending on the host center’s category). A.R.S. § 41-1519(O)(11)(b), A.R.S. § 41-1519(O)(12), ACA CDC Program Rules

The prime contractor

A contractor hired to build or retrofit a certified computer data center can also buy materials and equipment without paying sales or use tax, as long as the center is certified and the contractor provides the correct form (an Arizona Department of Revenue data center exemption certificate). A.R.S. § 42-5061(B)(23)

Investment thresholds

The minimum investment depends on the county where the AI data center sits. A new center must meet its threshold within five years of certification. An existing center qualifies by showing it already invested at least $250 million in the 72 months before September 1, 2013. A.R.S. § 41-1519(E)

What equipment is covered?

The statute defines computer data center equipment broadly. It includes servers, racks, networking gear, cabling, electrical transformation and distribution equipment, cooling and environmental controls, water conservation systems, monitoring and security systems, modular data centers, and the software that runs an AI data center. The equipment can be new, replacement, upgrade, or refreshment. It does not matter whether the equipment is fastened to the real property. A.R.S. § 41-1519(O)(2)

Arizona’s definition includes operating or enabling software for qualifying data centers. A.R.S. § 41-1519(O)(2)

How do you get certified?

The ACA certifies centers. ADOR administers the tax relief. A.R.S. § 41-1519(H) A business must apply to the ACA and receive certification before it can claim the exemption on purchases. A.R.S. § 41-1519(B), A.R.S. § 41-1519(C)

The application

An owner or operator submits an application to the ACA. The application must be complete and correct. The ACA must approve or deny it within 60 days. If the ACA does not act on an application within 60 days, the application is automatically approved and certification must issue within 14 more days. A.R.S. § 41-1519(C)

The fee is a nonrefundable $50 per CDC certification and another $50 per colocation tenant certification. ACA program summary The application also requires that the business confirm it complies with Arizona’s employer sanctions law on employment eligibility verification. A.R.S. § 23-214(A)

Key deadlines and reporting

The qualification period, the window for tax-free purchases, has a fixed end. During that period, the owner or operator must track and report. By the fifth anniversary of certification, the owner or operator must notify the ACA whether it met its investment threshold. Until the investment threshold is satisfied, the owner or operator must keep detailed records of all investment and the tax relief directly received. A.R.S. § 41-1519(F)

What happens if you miss the investment threshold?

If a new AI data center fails to meet its required investment in five years, the ACA must revoke the certification. The qualification period ends, and the ADOR can recapture some or all of the tax relief given to the owner and operator. Colocation tenants are generally shielded from recapture, unless the tenant is a contributing qualified colocation tenant and the center was certified on or after August 31, 2016. A.R.S. § 41-1519(G)(1)

Transfer and flexibility

A certification survives if the AI data center is sold or transferred. An owner or operator can also split one physical campus into multiple computer data centers for certification, or group several parcels, buildings, or modular data centers into a single certification. A.R.S. § 41-1519(D), (K)

How long does the exemption last?

The tax relief applies only during the qualification period. This period runs in full calendar years. The clock starts the year after certification.

Standard 10 year period

For most certified computer data centers, the qualification period runs from the certification’s effective date through the end of the tenth full calendar year after that year. If a center’s certification has an effective date in 2025, it can buy equipment tax free from that effective date through December 31, 2035. A.R.S. § 41-1519(O)(11)(a)

Sustainable redevelopment, 20 year period

A new AI data center that qualifies as a sustainable redevelopment project gets 20 full calendar years. To qualify, the project must be a newly constructed data center with at least $200 million of investment and achieve Energy Star, Green Globes, LEED, or equivalent green building certification and was not previously certified under these standards, or occupy an existing facility that was at least 50% vacant for six of the twelve consecutive months before acquisition or attains such certification and was not previously certified under these standards. A.R.S. § 41-1519(O)(11)(a), A.R.S. § 41-1519(O)(13)

Colocation tenant period

A qualified colocation tenant’s qualification period starts on the date of the colocation agreement. It runs to the earlier of the agreement’s expiration or the end of the tenth full calendar year following the calendar year of the agreement (or the twentieth if the center is a sustainable redevelopment project). It cannot outlast the host center’s own qualification period. A.R.S. § 41-1519(O)(11)(b)

What has the exemption cost Arizona taxpayers?

The fiscal cost has grown sharply. A report from the Grand Canyon Institute tracks the revenue loss to the state general fund.

Grand Canyon Institute

Governor Katie Hobbs, in her January 2026 state of the state address, called the exemption a $38 million corporate handout and said her executive budget would eliminate it. Governor’s office transcript

Arizona is not alone. At least 38 states offer some form of AI data center tax incentive. Arizona’s has no job creation requirement and publicly reports aggregate costs, unlike 12 states that keep those numbers hidden. Good Jobs First, Ariz. Rev. Stat. § 41-1519, NCSL

What is happening in the 2026 Arizona legislature?

Several lawmakers want to repeal or reshape the program. At least seven bills were filed in the 2026 session. Several would require a two thirds supermajority vote in each chamber because Arizona’s Proposition 108, a voter-approved constitutional amendment, requires a supermajority for any bill that eliminates a tax exemption. Ballotpedia, Stateline, Ariz. Const. art. IX, § 22

The bills

AAED 2026 Legislation Tracking, PoliScore

HB 2702, the Arizona Solar for All Act, would deposit the recovered TPT money into a fund run by the Governor’s Office of Resiliency. The fund would provide grants, low-cost loans, and technical assistance for rooftop and community solar in disadvantaged communities. The solar program would sunset in 2036. PoliScore

The politics

Governor Hobbs has publicly supported ending the exemption. Some industry groups oppose repeal, arguing it would hurt economic development. DCD

Adding pressure, the Arizona Corporation Commission opened a docket in April 2025 asking whether data centers should bear the full cost of new generation and grid upgrades rather than spread those costs across all ratepayers. Chairman Kevin Thompson stated data centers should pay those costs themselves. This energy cost debate, separate from the tax exemption, adds to the political pressure to revisit the exemption. Tax alert, ACC press release

The current exemption remains in effect. Any repeal would need a two thirds supermajority in both the House and Senate, a steep hurdle. Businesses planning new data centers in Arizona should still apply while the window is open, but they must budget for the possibility that the exemption could end or change.

Which AI data centers use the exemption?

Arizona’s AI data center market is one of the fastest growing in the country. As of early 2020, 28 centers were ACA certified with 87 colocation tenants. SB 1124 fiscal note The market has exploded since then. By May 2026, over 2,000 MW were operating and over 10,000 MW were planned. Cleanview The exact number of certified centers in 2026 is not publicly confirmed. CSG South analysis

Below are some well-known certified facilities and projects. The exact tax benefit each receives is not public. Arizona does not disclose company-specific tax expenditure data. Arizona Department of Revenue, FY 2025 Tax Expenditure Report, A.R.S. § 41-1519(I)

Cleanview, Stream Data Centers, H5 Data Centers

The Vermaland La Osa project in Pinal County, the largest planned project at 3,000 MW, shows how the lower $25 million threshold in non-metro counties drives development into rural Arizona.

Key takeaways

• Arizona’s Computer Data Center Program eliminates TPT and use tax on equipment for certified AI data centers, with no job creation requirement.
• The minimum investment is $50 million in Maricopa and Pima Counties, $25 million elsewhere, and $250 million for existing centers.
• Colocation tenants with at least 500 kW and a two year contract also qualify, unusual among state programs.
• The exemption runs for 10 years (20 for sustainable redevelopment) from the calendar year after certification.
• New applications must be submitted by December 31, 2033. But 2026 bills seek to repeal or accelerate that deadline, requiring a two thirds supermajority to pass.
• The cost to the state general fund rose from $1.4 million in FY2020 to $38.5 million in FY2025, with projections of $60 million by FY2027.
• Owners and operators must track investment and report to the ACA by year five. Missing the threshold triggers recapture for operators, though colocation tenants are largely protected.
• A prime contractor can also buy tax-free for a certified center using the proper documentation.
• Certification survives a sale and allows flexible aggregation or separation of facilities.
• The energy cost debate, including an ACC docket considering whether AI data centers should bear grid upgrade costs, is separate but adds pressure for legislative change.

Frequently asked questions

Q:Does Arizona require AI data centers to create jobs to get the sales tax exemption?

A:No. Arizona’s program has no job creation requirement, unlike most other state data center incentives. Meeting the investment threshold is one requirement among others, including submitting an application, obtaining certification from the Arizona Commerce Authority, and complying with additional conditions. A.R.S. § 41-1519

Q:What is the difference between the 10 year and 20 year qualification period?

A:A standard certified AI data center gets a qualification period expiring at the end of the tenth full calendar year after the year of certification. A sustainable redevelopment project, one that is a newly constructed data center with at least a $200 million investment and a recognized green certification, or a data center occupying an existing facility that was at least fifty percent vacant for six of the twelve consecutive months before acquisition or attains green certification, gets a qualification period expiring at the end of the twentieth full calendar year after the year of certification. In both cases the period begins on the effective date of certification. A.R.S. § 41-1519(O)(11)(a)

Q:Can I apply for certification after 2033?

A:Not under current law. The ACA cannot certify any new computer data center that submits an application after December 31, 2033. However, some 2026 bills would move that sunset date much earlier. A.R.S. § 41-1519(C), AAED

Q:What happens if my AI data center does not reach the investment threshold in five years?

A:The ACA revokes the certification. The ADOR can recapture some or all of the tax relief from the owner and operator. Colocation tenants are generally not affected unless the tenant is a contributing qualified colocation tenant and the center was certified on or after August 31, 2016. A.R.S. § 41-1519(G)(1)

Q:Does the exemption cover electricity costs?

A:No. The exemption covers computer data center equipment, including electrical transformation and distribution equipment inside the facility. A.R.S. § 41-1519(O)(2), A.R.S. § 42-5061(B)(23) Additionally, a certified CDC may not generate electricity for resale purposes or generate, provide, or sell electricity outside the data center. A.R.S. § 41-1519(M)

Q:If I buy an existing AI data center, does the certification transfer?

A:Yes. A certification survives a sale, transfer, or other disposition. You step into the remaining qualification period. A.R.S. § 41-1519(K), ACA CDC Rules § IV.B.6

Q:Is the information in my application public?

A:Proprietary business information you submit is confidential and cannot be disclosed to the public. However, the ACA or ADOR may disclose the name of a certified AI data center. A.R.S. § 41-1519(I)

Q:How does the Arizona exemption compare to other states?

A:At least 38 states offer some data center tax incentive. Arizona’s is notable because it requires no jobs and explicitly includes colocation tenants. It also publicly reports aggregate revenue loss, which many states do not. Ariz. Dept. of Revenue, Good Jobs First, Ariz. Rev. Stat. § 41-1519, Ariz. Rev. Stat. § 42-1005

Q:Will the exemption be repealed in 2026?

A:It is uncertain. Multiple bills were introduced in Arizona’s 2026 legislative session, including straight repeals and moves to shorten the sunset. Any repeal would require a two-thirds supermajority due to Proposition 108. The exemption remains in effect as of May 2026. AAED, Ballotpedia

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Junde Liu, JD, LL.M. (Taxation) candidate at UF Law. Originally published on Compute Law Blog. This article is general information and does not constitute legal advice. Reading it does not create an attorney client relationship. The reader should not act on the basis of any content here without first consulting a licensed attorney in the relevant state. Last reviewed for accuracy May 23, 2026.