Part III · Structures · No. 13

Opportunity zones

A 2017-enacted regime offering capital-gains deferral and tax-free post-investment appreciation for investment in designated low-income census tracts. The deferral expires in 2026; the tax-free appreciation after a ten-year hold remains the principal economic feature.

What the structure is

The Qualified Opportunity Zone regime was enacted as part of the Tax Cuts and Jobs Act of 2017 at §§1400Z-1 and 1400Z-2. Approximately 8,700 low-income census tracts were designated as Qualified Opportunity Zones. A taxpayer who realizes capital gain on any asset may, within 180 days, invest an amount equal to the gain in a Qualified Opportunity Fund (QOF) and defer the gain. The QOF invests in qualifying property within designated Opportunity Zones.

The tax problem it addresses

Three tax benefits:

• Deferral. Gain invested in a QOF is deferred until the earlier of QOF interest disposition or December 31, 2026 (the statutory recognition date).
• Partial step-up after holding (legacy, fully phased out for recent investments). Investments held 5 years before 12/31/2026 received a 10% basis step-up; 7-year investments received an additional 5%. For investments made after end of 2019, the 7-year step-up could not be achieved; after end of 2021, the 5-year step-up could not be achieved.
• Tax-free appreciation after 10-year hold. QOF interest held 10 years receives a basis step-up to fair market value on sale — eliminating tax on appreciation during the QOF holding period.

Mechanics

• Taxpayer realizes capital gain on any property (real estate, securities, art, business sale).
• Within 180 days, invests an amount equal to the gain in a QOF.
• QOF holds at least 90% of assets in qualified opportunity-zone property (real or business property in a designated zone).
• Original gain is deferred; tax is paid in 2026 (or earlier on disposition).
• After 10-year hold, election under §1400Z-2(c) steps basis to FMV; sale produces no further taxable gain on the QOF investment.

The applicable statutes and authorities

• 26 U.S.C. §§1400Z-1, 1400Z-2.
• Treas. Reg. §§1.1400Z2(a)-1 through §1.1400Z2(f)-1.
• Rev. Proc. 2018-16 (designation of OZs).
• Rev. Rul. 2018-29; Notice 2020-39 (relief due to pandemic).

Substance and audit risk

• 90% asset test. The QOF must hold at least 90% of assets in qualifying opportunity-zone property, tested semiannually with penalties for failure.
• Substantial improvement test. Pre-existing buildings acquired by QOF must be substantially improved (basis additions exceeding pre-acquisition basis) within 30 months.
• Working-capital safe harbor. A QOF subsidiary may hold cash as working capital for up to 31 months under defined business plans.
• 10-year exit mechanics. The 10-year basis step-up election is at sale; the underlying investment must remain qualified throughout. The Service has provided guidance on permissible exit structures (Treas. Reg. §1.1400Z2(c)-1).

Cost and complexity

QOF formation and ongoing compliance is administratively heavier than a typical real-estate LLC. Annual Form 8996 filing, semiannual asset testing, working-capital documentation, and exit-planning analysis add cost. Most retail OZ investors enter through institutional fund offerings rather than self-formed QOFs.

Common combinations

• QOF for art-sale proceeds. Sale of appreciated art produces 28% collectibles gain; investment in QOF defers gain and produces tax-free appreciation on the QOF investment.
• QOF for business-sale proceeds. Founder sale of operating business gain deferred through QOF investment.
• QOF for real-estate gain. Sale of appreciated real property invested in QOF holding new real-estate development.
• QOF combined with §1031 timing. Real-property gain that does not qualify for §1031 (or for which §1031 timing is unworkable) may qualify for QOF deferral.

Recent developments

The statutory deferral expires for taxable years ending December 31, 2026 — the recognition date for all deferred gain. Investors with 2017 to 2021 vintage QOF investments will recognize their deferred gain in 2026 unless legislation extends or modifies the program.

Legislative proposals to extend, expand, or modify the OZ program have circulated; some bipartisan support exists for a successor regime. As of the review date no extension has been enacted.

Tax Court litigation on OZ-related issues remains limited; the program is largely outside the standard audit cycle, but compliance with semiannual testing and substantial-improvement requirements is the principal exposure.

Reviewed May 2026