Key takeaways
- A QOF must be a corporation (including a REIT) or an entity classified as a partnership for federal tax purposes; a disregarded single-member LLC cannot be a QOF.
- The fund self-certifies by filing Form 8996 with its timely filed return, including extensions, and names the first month it is a QOF; investments made before that month do not qualify.
- The 90% asset test is measured on two dates, generally the last day of the first six months and the last day of the tax year, and new cash received in the prior six months can be excluded if held in cash or short-term debt.
- Most funds invest through a subsidiary Qualified Opportunity Zone Business, because the 31-month working capital safe harbor, extendable to 62 months, is available only at the QOZB level.
- Investors must receive equity for cash or property; loans to the fund are not qualifying investments.
- Proposed regulations published September 11, 2026 would require self-certification only in the first year and would make Form 8996 a separate information return; they are not final.
What does it take to set up a Qualified Opportunity Fund?
An eligible entity, a purpose of investing in zone property, and a timely Form 8996. There is no application and no IRS approval letter.
A Qualified Opportunity Fund (QOF) is defined in §1400Z-2(d)(1) as an investment vehicle organized as a corporation or partnership for the purpose of investing in qualified opportunity zone property, that holds at least 90% of its assets in that property.1 The IRS says an eligible corporation or partnership self-certifies by filing Form 8996 with its federal income tax return, filed on time including extensions.2,3 The regulations at 26 CFR 1.1400Z2(d)-1 supply the operating rules.4
Qualified opportunity zone property means qualified opportunity zone stock, partnership interests in a Qualified Opportunity Zone Business (QOZB), and qualified opportunity zone business property the fund holds directly.1 If those terms are new, start with what a QOF is and what a QOZB is.
What type of entity can be a QOF?
A corporation or an entity classified as a partnership for federal tax purposes, organized in the United States; most funds are LLCs taxed as partnerships.
| Entity | Can it be a QOF? | Practical notes |
|---|---|---|
| LLC or limited partnership taxed as a partnership | Yes | Most common. Depreciation and losses flow through to investors. Debt-financed distributions need care to avoid inclusion events. |
| C corporation | Yes | Entity-level tax on operating income; investors receive stock. |
| REIT | Yes, as a corporation | Used for some real estate funds; REIT tests apply in addition to QOF rules. |
| Single-member LLC disregarded for tax | No | Must elect corporate status or add a second member so it is a partnership. |
| Existing operating entity | Yes, if it meets the rules | Pre-existing assets usually fail the purchase and original-use rules, so new entities are typical. |
The final regulations require a QOF to be classified as a corporation or partnership for federal tax purposes and to be organized in one of the 50 states, the District of Columbia or a U.S. possession; an entity organized in a possession must be organized to invest in zones in that possession.5,6 Fund structures are compared in Opportunity Zone fund structures.
What are the steps to set up a QOF?
Form the entity, write the purpose into its documents, pick the first QOF month, take equity investments, deploy into zone property and file Form 8996.
Fig. 1Setting up a Qualified Opportunity Fund
- 01
Form the entity
Corporation or partnership; obtain an EIN
- 02
State the purpose
Governing documents say it is organized to invest in QOZ property
- 03
Pick the first QOF month
Investments before that month do not qualify
- 04
Accept equity for cash
Each investor within their own 180-day window
- 05
Deploy capital
Usually into one or more QOZBs, for newly issued interests
- 06
Test and file
90% test on two dates; Form 8996 with the return each year
Governing documents
The operating agreement or charter should state that the entity is organized to invest in qualified opportunity zone property and describe the qualified business it will conduct, directly or through QOZBs.5 Fund documents usually also cover compliance covenants, the manager's duty to run the 90% test, information delivery for investors' Form 8997, and restrictions that keep the fund and its QOZBs out of excluded businesses.
Investor eligibility
Each investor elects deferral on their own return. The investment must be equity, made within the investor's 180-day period after the gain, and recorded with the fund's EIN and investment date. See who can invest and why investments must be equity.
When does the 90% asset test start for a new fund?
On the first testing date after the fund's chosen first month as a QOF; if that month falls after the sixth month of the tax year, the only testing date that year is the last day of the year.
On Form 8996 the entity identifies the first taxable year and first month it is a QOF.3 The regulations measure the 90% test on the last day of the first six-month period of the taxable year and the last day of the taxable year, with both dates measured from the first month the entity is a QOF in its first year.4,7 An investor's cash that arrives before the first QOF month is not a qualifying investment, so the month must be set before the first closing.
Two further rules help a new fund. First, cash received in the six months before a testing date can be excluded from the test if it is held in cash, cash equivalents or debt with a term of 18 months or less.7,8 Second, proceeds from a sale of qualifying property or a return of capital count as qualifying for 12 months if reinvested in zone property.9 The details are in the QOF 90% asset test.
| Testing date | Total assets | Excludable new cash | QOZ property | Percentage |
|---|---|---|---|---|
| June 30, 2027 | $30.0M | $0 | $28.0M | 93.3% |
| Dec 31, 2027 (with six-month exclusion) | $50.0M | $20.0M received Dec 10, held in cash | $29.0M of $30.0M | 96.7% |
| Average | 95.0%: passes | |||
| Dec 31, 2027 (if the exclusion were not used) | $50.0M | $29.0M | 58.0%; average 75.7%: fails |
Assumptions: the fund certifies as of January 2027, closes $30 million in January and $20 million on December 10, 2027, and keeps the late cash in a money market account. Failing the test triggers a monthly penalty under §1400Z-2(f) on the shortfall below 90%, at the underpayment rate, unless the failure is due to reasonable cause.1,10
Should a QOF own property directly or through a QOZB?
Almost every development fund uses a two-tier structure, because the working capital safe harbor and the 70% test only exist at the QOZB level.
Fig. 2Direct ownership versus a two-tier QOF
One tier
QOF owns property directly
- QOF itself must hold 90% QOZ business property
- No working capital safe harbor for cash
- Only the six-month new-cash exclusion helps
- Simpler, suits a completed or quickly improved asset
Two tier
QOF owns a QOZB
- QOF holds QOZB interests, which count toward 90%
- QOZB needs only 70% qualifying tangible property
- 31-month working capital safe harbor, up to 62 months
- Separate QOZBs can hold separate projects
- More entities, more compliance
The QOF must acquire its QOZB interest directly from the QOZB, generally for cash, after the business is organized for zone purposes; buying an existing owner's interest does not qualify.1,6 See the working capital safe harbor for how to write a qualifying written plan and schedule.
What does a QOF have to do every year?
File Form 8996, run the 90% test on both dates, monitor each QOZB's tests and give investors what they need for Form 8997.
Fig. 3A QOF's first compliance year (calendar-year fund)
Jan 2027
First QOF month
Named on Form 8996
Jan to Jun
Closings and deployment
Cash into QOZBs; QOZB adopts safe harbor plans
Jun 30
First testing date
90% test, first half
Dec 31
Second testing date
90% test, year-end
Mar to Sep 2028
Return and Form 8996
Due with the return, including extensions
Early 2028
Investor data
EIN, dates and amounts for each investor's Form 8997
Public Law 119-21 added an annual QOF information return under §6039K and a daily penalty under §6726: $500 per day, capped at $10,000 per return, or $50,000 for a fund with gross assets over $10 million.12 Proposed regulations published September 11, 2026 would make Form 8996 a separate information return, require self-certification only in the first year, add census-tract data and create a formal decertification procedure.13,14 They are proposed, not final. See reporting requirements and penalties.
How are data center QOFs usually set up?
Typically as a partnership QOF that owns one QOZB per campus or phase, with working capital plans matched to construction and power schedules.
Data centers take years to build and energize. A QOZB can hold cash under a written plan for 31 months and extend to 62 months with sequential plans and new infusions, and delays caused by government action on a completed application can toll the period; whether utility interconnection delays count is unsettled.11,15 Separate QOZBs for separate phases keep one delayed phase from putting the whole fund at risk. The partnership form lets investors receive the large depreciation deductions from short-lived electrical, mechanical and IT-related property, subject to the basis and at-risk rules.16
Data center sponsors also need to settle lease structure early, because a single-tenant triple-net lease is not an active trade or business for QOZB purposes. That analysis is in powered shell and triple-net data centers, and the fund mechanics are in how a data center Opportunity Zone fund works. OZ Data Centers sponsors and manages funds structured this way.
Common questions
Do I need IRS approval to start a QOF?
No. A QOF self-certifies by filing Form 8996 with its timely federal income tax return, including extensions. The IRS does not issue approval letters.
Can a single-member LLC be a Qualified Opportunity Fund?
Not if it is disregarded for tax purposes. A QOF must be classified as a corporation or a partnership, so the LLC needs a second member or a corporate election.
Can an existing company become a QOF?
Yes, if it is a corporation or partnership and meets the 90% test from its first QOF month. In practice, existing assets rarely qualify, so most sponsors form a new entity.
How soon must a new QOF invest its cash?
Cash received within six months before a testing date can be excluded from the 90% test if held in cash, cash equivalents or short-term debt. After that, it must be deployed into QOZ property, often a QOZB that can use the 31-month working capital safe harbor.
Can investors lend money to a QOF instead of buying equity?
No. Only equity interests qualify for deferral. A loan to a fund is not a qualifying investment, although the fund or its QOZB may borrow from lenders.
Will the self-certification rules change?
Proposed regulations published September 11, 2026 would require self-certification only in the first year, with Form 8996 still filed annually as a separate information return. The rules are not final.
Sources
Every numbered note in this guide links to the source below.
- 1.U.S. Government Publishing Office (GovInfo), “26 U.S.C. 1400Z-2: Special rules for capital gains invested in opportunity zones,” 2026. govinfo.gov
- 2.Internal Revenue Service, “Certify and maintain a Qualified Opportunity Fund,” 2026. irs.gov
- 3.Internal Revenue Service, “About Form 8996, Qualified Opportunity Fund,” 2026. irs.gov
- 4.Electronic Code of Federal Regulations, “26 CFR 1.1400Z2(d)-1: Qualified opportunity funds and qualified opportunity zone businesses,” 2026. ecfr.gov
- 5.EY Tax News, “Final regulations on Opportunity Zones retain same approach as proposed regulations, with a few big changes,” 2020. taxnews.ey.com
- 6.Holland & Hart, “Taxpayer-Favorable Final Opportunity Zone Regulations Issued,” 2019. hollandhart.com
- 7.KPMG, “Qualified Opportunity Funds: Mid-2022 Asset Testing Considerations,” 2022. tax.kpmg.us
- 8.Steptoe, “Final Opportunity Zone Regulations Provide Some Much-Needed Clarity,” 2020. steptoe.com
- 9.Orrick, “Final Tax Regulations Offer More Certainty to Opportunity Zone Fund Managers and Investors,” 2020. orrick.com
- 10.Cherry Bekaert, “Expiration of IRS Relief Provisions for Qualified Opportunity Funds,” n.d. cbh.com
- 11.ArentFox Schiff, “Qualified Opportunity Zones, the Final Regulations: What's New, What's Changed, and What's Stayed the Same,” 2020. afslaw.com
- 12.RSM US, “New penalties for taxpayers in the One Big Beautiful Bill Act,” 2025. rsmus.com
- 13.Federal Register (GovInfo), “Information Reporting Regarding Qualified Opportunity Zones and Updated Qualified Opportunity Fund Certification and Decertification Procedures, 91 FR 57968,” 2026. govinfo.gov
- 14.KPMG, “Report: Proposed QOF information reporting and certification,” 2026. kpmg.com
- 15.RSM US, “Final QOZ regulations include favorable interpretations,” 2019. rsmus.com
- 16.RSM US, “The OBBBA rekindles opportunity zones: What it means for real estate,” 2025. rsmus.com
OZ Data Centers
Building or investing in an Opportunity Zone data center?
We sponsor the deals, manage the funds and run the operating businesses. Tell us about your capital, your land or your project.
This website is for general information only. It is not an offer to sell, or a solicitation of an offer to buy, any security. Any offering will be made only through confidential offering documents, to eligible investors, where permitted by law. Opportunity Zone tax benefits depend on each investor's circumstances and on rules that can change; consult your own tax and legal advisers.