Opportunity Zone tax breaks for AI data center investment

In short

The Opportunity Zone program lets an investor defer and partly forget federal tax on a capital gain by putting the gain into a qualified fund that invests in a low income census tract. For AI data centers, that means a project in the right tract can keep more of the gain that funded it, avoid tax on the building’s appreciation if held long enough, and in rural zones get a bigger basis step up under the new rules. The One Big Beautiful Bill Act, signed July 4, 2025, made the program permanent, introduced a rolling five year deferral, and created a special rural fund with a 30 percent basis step up and a halved improvement test. P.L. 119-21, IRC § 1400Z-2, Rev. Proc. 2026-14, Tax alert

A developer must still meet the 90 percent asset test, the 70 percent use test, the substantial improvement obligation, the leased property rules, and the 180 day reinvestment window. Those rules are plain enough to state but tight in application. This article works through each of them specifically for a capital heavy, long lived AI data center project.

What is the Opportunity Zone program?

The Tax Cuts and Jobs Act of 2017 created the Opportunity Zone program. HUD Governors could nominate census tracts with high poverty or low incomes. Treasury certified 8,764 tracts across all 50 states, DC, and five territories as Qualified Opportunity Zones, or QOZs. HUD An investor who sells an asset at a gain can put that gain into a Qualified Opportunity Fund, a corporation or partnership organized to invest in these zones, and receive federal tax benefits. IRC § 1400Z-2

Most Round One designations expire December 31, 2028, with Puerto Rico’s expiring December 31, 2027. CRS Report A permanent ten year redesignation cycle starts in 2027, with governors nominating new tracts beginning July 1, 2026. P.L. 119-21

How do the tax benefits work?

The benefits come in layers. The core idea is that you sell something at a gain, move the gain into a fund, and the longer you leave it there the more tax you avoid.

Tax benefits for gains invested before 2027

Under the original rules, an investor who put a capital gain into a QOF within 180 days of the sale could defer that gain from income. The deferred gain became taxable on the earlier of the date the QOF investment was sold or December 31, 2026. IRC § 1400Z-2(b)(1)

If the investor held the QOF investment at least five years, the basis in the investment increased by 10 percent of the original gain, permanently removing that 10 percent from tax. Holding at least seven years added another 5 percent, for a total 15 percent exclusion. IRC § 1400Z-2(b)(2)(B) These five and seven year step ups are no longer available, because to qualify an investor needed to invest by the end of 2021 or 2019, respectively, to complete the holding period before the December 31, 2026 inclusion date. IRS

If the investor held the QOF investment at least ten years and then sold it, the investor could elect to step up the basis to fair market value on the sale date. That election wipes out all tax on the post investment appreciation. IRC § 1400Z-2(c)

Tax benefits for gains invested after 2026 (OZ 2.0)

The One Big Beautiful Bill Act, called OBBBA, rewrites the benefit schedule for investments made after December 31, 2026. The election window is now permanent. P.L. 119-21 § 70421(c)(1) Here is the new structure.

P.L. 119-21, Tax alert

The standard 5 year step up is now a flat 10 percent. There is no additional 5 percent at 7 years. For a Qualified Rural Opportunity Fund, the step up jumps to 30 percent. P.L. 119-21 § 70421(c)(3), Tax analysis A QROF invests in a zone that is entirely a rural area, as defined below.

The 10 year permanent exclusion still applies. A new rule adds that if the investment is not sold within 30 years, basis is stepped up to fair market value on the 30th anniversary, ending the exclusion period at that point but still removing all gain through year 30. P.L. 119-21 For a data center with a typical 20 to 30 year investment horizon, this window fits well.

What are the structural requirements for a Qualified Opportunity Fund?

A Qualified Opportunity Fund is the required vehicle. It is a corporation or a partnership that files a self certification with the IRS and must hold at least 90 percent of its assets in Qualified Opportunity Zone Property, or QOZP. IRC § 1400Z-2(d)(1), Treas. Reg. § 1.1400Z2(d)-1 The test is measured twice a year, on the last day of the first six month period and the last day of the taxable year. If the fund falls below 90 percent, it owes a monthly penalty equal to the shortfall multiplied by the underpayment rate, unless reasonable cause exists. IRC § 1400Z-2(f) The QOF self certifies each year on Form 8996. IRS

The QOF must own the QOZBP, the tangible property, either directly or through a Qualified Opportunity Zone Business, a QOZB. A QOZB is a trade or business that meets three tests.

• Substantially all of its tangible property (at least 70 percent) is QOZBP. 26 CFR § 1.1400Z2(d)-1(d)(2)(i), OpportunityZones.com
• At least 50 percent of its gross income comes from the active conduct of a trade or business within a QOZ. IRC § 1400Z-2(d)(3) cross-reference to § 1397C
• The business is not a sin business (golf course, country club, massage parlor, hot tub or suntan facility, racetrack or gambling facility, or a store whose main business is selling alcohol for off premises use). Data centers are not on the excluded list. IRC § 1400Z-2(d)(3)(A)(iii), IRC § 144(c)(6)(B)

The investor must put an equity interest into the QOF. A debt instrument does not count. HUD The investor must make the investment within 180 days of the gain recognition date. For a partner receiving a passthrough gain, the 180 days can start on the unextended due date of the entity’s return, typically March 15. IRS FAQs

How can AI data centers qualify as QOZ property?

The tangible property inside a QOF or QOZB must be Qualified Opportunity Zone Business Property, QOZBP. The property must satisfy four conditions.

• Acquired by purchase (not a gift or inheritance) after December 31, 2017.
• The original use in the QOZ begins with the QOF, or the QOF substantially improves the property.
• During at least 90 percent of the holding period, at least 70 percent of the use of the property is in a QOZ.
• The property is tangible and used in a trade or business.

IRC § 1400Z-2(d)(2)(D), IRS FAQ Q52

For an AI data center, the building shell, the power infrastructure, the cooling systems, and the backup generation are all clearly tangible property. The question with servers and IT equipment is less settled. The IRS provides that mobile tangible property generally qualifies as QOZ business property if used at least 70 percent of days inside the QOZ, and a safe harbor allows exclusion of up to 20 percent of such property from that calculation if it returns to the site at least every 14 days. IRS FAQ Q53 Practitioners generally treat computing equipment as potentially qualifying tangible property, but no AI data center specific IRS guidance confirms this.

Meeting the substantial improvement test

When a QOF buys an existing building, original use does not begin with the QOF. So the QOF must substantially improve the property. The test requires the QOF to add improvements that increase the basis of the property by more than the adjusted basis at the start of a 30 month period, in other words to double the basis. IRC § 1400Z-2(d)(2)(D)(ii)

Example. A QOF buys a vacant warehouse in a QOZ for $10 million. It must spend at least an additional $10 million on improvements within 30 months to meet the test.

For a QROF property, one located entirely in a rural area, the OBBBA immediately lowered the threshold to 50 percent of adjusted basis, effective July 4, 2025. P.L. 119-21 If the same warehouse were in a rural QOZ, the required improvement spend drops to $5 million.

Self constructed property built after 2017 with the intent to use in a QOZ can also qualify, and the materials and supplies used in construction must themselves be QOZBP. Tax alert

Leased land and leasehold improvements

AI data centers often sit on leased land. The regulations let leased tangible property count as QOZBP if the lease was entered into after December 31, 2017, and is at market rate. For related party leases, prepaid rent beyond 12 months is not allowed, and if the leased tangible personal property was previously used in the QOZ, the lessee must purchase new QOZBP of equal value before the earlier of the lease end or 30 months after receiving the property. IRS OZ FAQs, 26 CFR 1.1400Z2(d)-2

Long term ground leases of 10, 20, or even 30 years are accommodated. The improvements built on the leased land, the data center shell, the power and cooling plant, the fiber conduit, can satisfy the substantial improvement test even though the land itself is leased. Tax alert

The working capital safe harbor

A QOZB can hold cash for construction without failing the rule against excess nonqualified financial property. The business must write a plan for spending the capital within 31 months and follow that plan. An extra 24 months is available in a federally declared disaster area. Tax alert A large AI data center campus that takes three years to build the first phase fits comfortably inside this window.

What makes the OZ 2.0 changes especially valuable for AI data centers?

The OBBBA did not add data center specific language. It left the program broad enough that a data center qualifies. But several changes tilt in favor of AI data center projects, particularly those sited outside crowded urban power markets.

• Rural Opportunity Zones. An area is rural if it is not a city or town with more than 50,000 people and not an urbanized area next to such a city. P.L. 119-21 Among Round One zones, 3,309 tracts are entirely rural and qualify for QROF treatment. Forvis Mazars An AI data center built in one of these tracts gets the 30 percent basis step up and the 50 percent substantial improvement threshold. Rural land is also often cheaper and further from the local opposition that has blocked projects in dense counties. In Northern Virginia, AI data center land can reach $8 million per acre. Forvis Mazars Rural OZ sites offer a sharp cost advantage.
• The 30 year window. AI data center investment horizons routinely stretch to 20 or 30 years. The OZ 2.0 rules align with that. If the QOF holds the investment for 10 years, all appreciation inside the QOF is tax free. If it holds for 30 years and still has not sold, the basis steps up automatically, wiping out the gain through that date.
• No new use restrictions. The law does not include provisions directing OZ investment toward specific types of projects such as operating businesses, nor does it limit eligible uses such as cryptocurrency-related facilities or self-storage. IEDC AI data centers remain fully eligible.
• A narrowing regulatory picture elsewhere. Over 300 AI data center bills were filed in statehouses in 2026, including more than a dozen moratorium proposals. Local groups have blocked or delayed an estimated $60 billion in investment. Tax alert The OZ incentive can be the tiebreaker that makes a site in a welcoming rural tract pencil out.

Who gets the benefit? Equity owners, not tenants.

The tax benefits flow only to equity owners of the real estate. A colocation customer or a cloud tenant that signs a lease receives no direct OZ benefit. To share the OZ tax benefits, an AI data center tenant must enter an equity sharing arrangement with a wholesale AI data center developer. Prime Data Centers, Prime Data Centers Several AI data center operators actively market OZ eligible sites and invite tenant equity participation. H5 Data Centers operates facilities in four Opportunity Zones and promotes the status to investors. H5 Data Centers Prime Data Centers broke ground on a 240 megawatt campus in Phoenix, a $3 billion project, and notes that OZ tax benefits require tenant equity sharing. Prime Data Centers

In Illinois, the state data center tax exemption program approved 27 projects totaling $8.1 billion in investment. Illinois DCEO 2024 Annual Report Illinois maintains active Opportunity Zone tracts, and the federal OZ program can augment existing incentives, raising the possibility of stacking state incentives on top of federal OZ benefits, and a detailed map of designated zones is publicly available. Illinois Opportunity Zones, Tax Incentives for Opportunity Zones, DCEO OZ 2.0 whitepaper

How do state taxes affect the OZ benefit?

The federal OZ exclusion does not automatically flow through to state income tax. Four states do not conform to the federal program at all, namely California, Mississippi, North Carolina, and Washington. Massachusetts conforms for corporate excise tax but not for personal income tax. Mass. DOR TIR 19-7, OpportunityZones.com Several others offer limited conformity. Most states either have no capital gains tax or fully conform. A sponsor should check the target state’s posture early, because the state tax bite can erase a meaningful part of the federal benefit.

Key takeaways

• The OZ program is permanent now. The OBBBA removed the December 31, 2026 cliff date for new gains and established a rolling deferral and a permanent designation cycle. P.L. 119-21
• Rural zones pack the biggest punch. A QROF AI data center needs only a 50 percent basis increase to meet the substantial improvement test, immediately effective, and for investments made after December 31, 2026, gets a 30 percent basis step up at year five. P.L. 119-21
• The 30 year exclusion window lines up with AI data center life spans. A 10 year hold allows an election to step up basis to fair market value at sale, eliminating tax on appreciation, and a hold past 30 years allows an election to step up basis to fair market value without disposing of the investment, frozen at the 30 year anniversary value. P.L. 119-21
• Watch the 90 percent test, the 70 percent use test, and the 30 month improvement clock. A QOF that dips below 90 percent QOZP faces monthly penalties. The QOZB must keep 70 percent of its tangible property (by value) in QOZBP. A building bought for $50 million must see more than $50 million in improvements within 30 months, unless it is in a rural zone where more than $25 million suffices. IRC § 1400Z-2
• Leased land works, but document a market rate lease. The rules accommodate long term ground leases. Leasehold improvements count toward substantial improvement. The working capital safe harbor can cover a multiyear construction timeline. Treas. Reg. § 1.1400Z2(d)-1(d)(3)(v)(E), Treas. Reg. § 1.1400Z2(d)-1(d)(3)(vi), Tax alert
• Tenants need equity to share the tax benefit. A standard colocation contract gives the tenant no OZ benefit. Structure an equity participation upfront. Prime Data Centers
• State conformity is patchy. Four states ignore the federal program entirely. A site in one of those states may be far less attractive after state taxes. OpportunityZones.com
• New reporting is mandatory and the penalties are real. QOFs must file annual reports with detailed asset, location, and employment data. Penalties reach $50,000 per return for larger funds. Tax alert

Frequently asked questions

Q:Is the Opportunity Zone program still available for new investments?

A:Yes. The OBBBA made the program permanent. The original round of zones expires on December 31, 2028, but new designations take effect January 1, 2027, and under the new permanent program, gains can be reinvested into qualified opportunity funds at any time, with tax on each deferred gain recognized at the earlier of disposition or five years after investment. P.L. 119-21

Q:What is the difference between a QOF and a QOZB?

A:A Qualified Opportunity Fund is the investment entity that holds the pooled capital gains and must meet the 90 percent asset test. A Qualified Opportunity Zone Business is the operating company that runs the trade or business (like a data center) and must meet the 70 percent tangible property test and the 50 percent gross income test. Often the QOF owns a QOZB underneath it.

Q:How long must I hold a QOF investment to avoid tax on the appreciation?

A:Ten years. After ten years, you can elect to step up your basis to fair market value and sell without paying tax on the gain that built up inside the QOF. If you hold for at least 10 years, make the election, and do not sell before the 30th anniversary, your basis steps up to fair market value on that date. IRC § 1400Z-2(c), P.L. 119-21

Q:Can I still get the 15 percent basis step up?

A:No. The 5 year 10 percent and additional 7 year 5 percent step ups under Round One required a holding period that expired before the December 31, 2026 inclusion date. For new investments after 2026, the standard step up is a flat 10 percent at 5 years, or 30 percent for rural funds. P.L. 119-21, HUD

Q:Does the 180 day clock start when I sell the asset?

A:For a direct sale, yes, the 180 day period starts on the sale date. For a passthrough gain from a partnership or S corporation, you can start the clock on the unextended due date of the entity’s return, which is often March 15 of the following year. IRS FAQ

Q:Can I put an AI data center on leased land in an Opportunity Zone?

A:Yes, if the lease is a market rate lease entered into after 2017. Leasehold improvements can count toward the substantial improvement test. A long term ground lease does not disqualify the project. IRS Form 8996 Instructions, Treas. Reg. § 1.1400Z2(d)-2, IRS OZ FAQs

Q:Do servers and GPUs inside the AI data center count as QOZBP?

A:There is no IRS ruling directly on point. The general rule for mobile tangible property, which includes equipment that moves, is that it qualifies if used at least 70 percent of days inside the zone. A safe harbor for equipment returned to the site at least every 14 days allows excluding up to 20 percent from the 70 percent calculation. The IRS FAQ provides that mobile tangible property can qualify as QOZBP if used at least 70% of the days in a QOZ, with a safe harbor for equipment returned to the QOZ at least every 14 days, but computing equipment is not specifically addressed. IRS FAQ Q53

Q:What happens if my QOF fails the 90 percent test?

A:The QOF owes a monthly penalty for the shortfall, computed at the underpayment rate, unless reasonable cause applies. IRC § 1400Z-2(f)

Q:Are there new IRS reporting requirements for QOFs?

A:Yes. The OBBBA added mandatory annual reporting of asset values, tract locations, NAICS codes, employee counts, and more. Penalties for noncompliance reach up to $50,000 per return for larger funds. Tax alert

Q:Does my state follow the federal Opportunity Zone rules?

A:Not necessarily. Four states, California, Mississippi, North Carolina, and Washington, do not conform at all. Massachusetts provides only partial conformity, applying the federal OZ rules to corporate excise taxpayers but not to personal income taxpayers. Several others provide only partial conformity. OpportunityZones.com

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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.