# Structuring Opportunity Zone Funds

> Designs Qualified Opportunity Zone fund structures with investment timeline requirements, substantial improvement tests, and tax benefit mechanics. Use when structuring OZ funds, analyzing QOF requirements, or evaluating OZ tax benefits.

- Skill: `lev-os/structuring-opportunity-zone-funds` (Agent Skill)
- Install (CLI): `npx skillmds@latest add lev-os/structuring-opportunity-zone-funds`
- Raw SKILL.md: https://api.skillmd.com/api/skills/lev-os/structuring-opportunity-zone-funds/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: lev-os (https://skillmd.com/u/lev-os)
- Updated: 2026-09-10
- Page: https://skillmd.com/skills/lev-os/structuring-opportunity-zone-funds

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# Structuring Opportunity Zone Funds

Designs Qualified Opportunity Zone fund structures compliant with IRC §1400Z-2 and Treasury Regulations, covering entity formation, 90% asset test compliance, investment timelines, substantial improvement requirements, and tax deferral/exclusion mechanics.

## When To Use

- Forming a new Qualified Opportunity Fund (QOF) or Qualified Opportunity Zone Business (QOZB)
- Evaluating whether a proposed investment qualifies for OZ tax benefits
- Structuring capital gains rollovers into a QOF within the 180-day window
- Analyzing whether a real estate project meets the substantial improvement test
- Designing fund terms (PPM, LP/LLC agreement) around OZ-specific holding period and compliance constraints
- Advising on exit timing to maximize basis step-up and gain exclusion benefits

## Inputs To Gather

- **Capital gains source**: Type of gain (short-term, long-term, §1231), recognition event date, and 180-day deadline calculation
- **Investor profile**: Number of investors, tax status (individual, partnership, corporation, trust), state residency for state OZ conformity analysis
- **Target investment**: Asset class (real estate, operating business, mixed), geographic location (confirm census tract designation as a Qualified Opportunity Zone) [VERIFY census tract status — designations can expire or be updated]
- **Entity structure preferences**: Single-asset vs. multi-asset fund, LP vs. LLC, blocker entities for tax-exempt or foreign investors
- **Project budget and timeline**: Total project cost, acquisition cost of existing structures (for substantial improvement basis calculation), projected construction/renovation schedule
- **Intended hold period**: 5-year, 7-year, or 10-year horizon and desired tax benefit tier
- **State OZ incentives**: Whether the fund's state(s) offer conforming or additional OZ tax benefits [VERIFY — state conformity varies significantly]

## Workflow

1. **Confirm OZ Eligibility**
   - Verify the target property/business is located in a designated Qualified Opportunity Zone census tract
   - Confirm the investor's capital gain qualifies as an "eligible gain" under §1400Z-2(a)
   - Calculate the 180-day investment deadline (note: for partnership gains, the 180-day window may start at partnership year-end or gain recognition date — investor elects) [VERIFY current IRS guidance on 180-day start date for pass-through entities]

2. **Select Entity Structure**
   - QOF must be organized as a corporation or partnership (including LLC taxed as either) and self-certify on Form 8996
   - Determine single-tier (QOF holds assets directly) vs. two-tier (QOF invests in a QOZB subsidiary) structure
   - Two-tier is typical for operating businesses; single-tier is common for direct real estate holds
   - Address blocker entity needs for tax-exempt investors (UBTI concerns) or foreign investors (FIRPTA, ECI)

3. **Design Compliance Framework**
   - **90% Asset Test**: At least 90% of QOF assets must be Qualified Opportunity Zone Property, tested semi-annually (June 30 and December 31). Penalty for failure: amount of shortfall × federal short-term rate × underpayment penalty rate
   - **Substantial Improvement Test** (for existing buildings): QOF/QOZB must double the adjusted basis of the building (excluding land) within any 30-month period beginning after acquisition. Land value is excluded from the test basis
   - **70% Tangible Property Test** (QOZB level): At least 70% of QOZB tangible property must be QOZP
   - **Working Capital Safe Harbor**: QOZB can hold working capital for up to 31 months if there is a written plan, schedule, and the capital is designated for OZ property acquisition, construction, or development [VERIFY — COVID extensions may have modified safe harbor timelines]

4. **Map Tax Benefit Timeline**
   - **Deferral**: Eligible capital gain invested in QOF is deferred until the earlier of (a) the date the QOF investment is sold or (b) December 31, 2026 [VERIFY — the 2026 inclusion date under current law]
   - **Basis Step-Up (5 years)**: 10% basis increase in deferred gain after 5-year hold (effectively excludes 10% of deferred gain) — note: this benefit expired for most investors as of December 31, 2026 recognition date [VERIFY whether legislative extensions have been enacted]
   - **Basis Step-Up (7 years)**: Additional 5% (total 15%) after 7-year hold — same expiration concern
   - **10-Year Exclusion**: If QOF investment held for at least 10 years, investor may elect to step up basis in QOF interest to fair market value, permanently excluding post-investment appreciation from tax

5. **Draft Fund Documents with OZ Provisions**
   - Operating/partnership agreement: include OZ-specific transfer restrictions (to protect holding periods), compliance covenants, mandatory reporting obligations, capital call mechanics aligned with 180-day deadlines
   - PPM/subscription agreement: OZ risk factors, 90% test compliance risk, legislative change risk, illiquidity due to holding period requirements
   - Side letter considerations: different 180-day deadlines per investor, co-investment rights, reporting frequency

6. **Model Economics and Reporting**
   - Prepare pro forma showing after-tax returns at 5-year, 7-year, and 10-year exits compared to non-OZ investment
   - Identify annual Form 8996 filing requirements for the QOF
   - Map investor-level reporting: Schedule K-1 with OZ gain deferral tracking, basis adjustments

## Output

- **QOF Structure Memorandum**: Entity diagram, tier structure rationale, compliance framework, and tax benefit timeline
- **90% Asset Test Compliance Calendar**: Semi-annual testing dates with asset valuation procedures and cure period deadlines
- **Substantial Improvement Analysis** (if applicable): Basis calculation, 30-month improvement schedule, budget allocation between land and building
- **Investor Tax Benefit Summary**: Table showing deferral amount, basis step-up milestones, and 10-year exclusion eligibility per investor class
- **Risk and Compliance Matrix**: Key compliance triggers, penalty calculations for asset test failures, and legislative risk factors

## Quality Checks

- Confirm census tract designation is active and has not expired [VERIFY]
- Validate that 180-day deadlines are correctly calculated for each investor's specific gain recognition event
- Verify substantial improvement math excludes land basis and uses post-acquisition adjusted basis of improvements
- Ensure 90% asset test accounts for all QOF assets, including cash and working capital (apply safe harbor where documented)
- Cross-check that fund documents contain transfer restrictions sufficient to protect OZ holding periods
- Confirm state-level OZ conformity — many states decouple from federal OZ provisions or impose additional requirements [VERIFY per applicable state]
- Flag any investor whose 5-year or 7-year hold period cannot be achieved before the December 31, 2026 deferred gain recognition date [VERIFY current statutory deadline]
- Review for UBTI exposure if tax-exempt investors participate, and FIRPTA/ECI exposure for foreign investors