This article is educational and is not legal or tax advice. Opportunity Zone inclusion and depreciation positions depend on the fund's documents and each investor's facts — confirm every position against the governing instruments before filing.
Every client holding a pre-2027 qualifying investment in a Qualified Opportunity Fund recognizes their deferred gain in the tax year containing December 31, 2026. OBBBA did not move that date for money already in a fund. For preparers, the headline is the easy part; the work is in the basis classes, the character that rides through, a partnership regulation that quietly replaces the computation your client read about in the trade press, and whether a cost segregation position exists to put deductions against the income.
This is a workpaper article. It assumes you already know the deferral is ending and covers what actually lands on the return, in what order, with the conditions attached — including where a cost segregation study changes the answer and where it cannot.
Step one: the lesser-of computation, and the vintage classes that set basis
Under IRC §1400Z-2(b)(2)(A), the included amount is the excess of (i) the lesser of the deferred gain or the fair market value of the investment on the inclusion date, over (ii) the taxpayer's basis in that investment.
Basis is where the per-client work starts, because the step-ups are closed classes tied to investment date and your software will not infer them from a K-1:
- Starting basis is $0 for a qualifying investment — §1400Z-2(b)(2)(B)(i).
- 10% step-up where the investment was made on or before December 31, 2021 — §1400Z-2(b)(2)(B)(iii).
- A further 5%, for 15% total, where the investment was made on or before December 31, 2019 — §1400Z-2(b)(2)(B)(iv).
- Basis increases by the amount recognized once the inclusion occurs — §1400Z-2(b)(2)(B)(ii).
Both step-ups are closed to new entrants but very much alive for the vintages that earned them. A client who invested in 2019 and a client who invested in 2022 with identical economics report materially different numbers.
Step two: the partnership regulation that replaces the computation
Where the investor holds through a partnership or S corporation, Treas. Reg. §1.1400Z2(b)-1(e)(4) substitutes a different measure entirely: the lesser of (i) the percentage share of remaining deferred gain reduced by the vintage step-ups, or (ii) the gain that would be recognized on a fully taxable disposition of the interest at fair market value.
Prong (ii) is a hypothetical sale, so liabilities allocated under IRC §752 enter the amount realized. Because Opportunity Zone real estate commonly runs 50–70% financed, the practical effect is that a decline in fund value can stop reducing the inclusion. Two illustrations of a $1,000,000 investment now worth $850,000: with $200,000 of loss allocations and no liabilities, $850,000 is recognized; with $200,000 of distributions and $3,000,000 of allocated liabilities, the full $1,000,000 is recognized.
Flag this early with any client whose sponsor is discussing a debt-financed distribution to fund the December tax. Under this regulation the distribution can increase the very liability it was raised to pay. That conversation belongs in October, not at filing.
Step three: character rides through
Treas. Reg. §1.1400Z2(a)-1(c)(1)(i) provides that the included gain has the same attributes in the year of inclusion that it would have had absent deferral, including attributes taken into account by §§1(h), 1222, 1231(b) and 1256.
The practical consequence: if the originally deferred gain carried unrecaptured §1250 gain, the 25% rate follows it into 2026. If it carried §1231 or §1256 characteristics, those follow too. Reconstructing what was rolled in five or seven years ago is a real workpaper task, and it is not one the current-year K-1 answers.
Step four: reporting
The inclusion is reported on Form 8949 and carried to Schedule D, with the investment tracked on Form 8997 for the year. Two points to confirm rather than assume:
- The gain is not re-deferrable. Notice 2026-40 §4.01(2) states the deemed inclusion must be recognized and cannot be rolled into another fund.
- The inclusion is not a disposition. Notice 2026-40 §4.01(3) confirms the qualifying investment continues and the §1400Z-2(c) ten-year election survives — for pre-2027 investments, electable for dispositions through December 31, 2047 under Treas. Reg. §1.1400Z2(c)-1(c).
A separate reporting regime is arriving for funds themselves. OBBBA added §6039K (annual QOF return), §6039L (QOZB statements to the fund) and §6726 penalties running at $500 per day with caps that rise to $50,000, or $2,500 per day for intentional disregard. These are implemented through proposed regulations released in September 2026 and apply to tax years ending after final regulations publish. Fund clients should be capturing the data now rather than reconstructing it later.
Where cost segregation and depreciation change the answer — and where they cannot
Because the gain cannot be deferred again, the only remaining lever is deductions in the same year. A cost segregation study on a completed building inside the fund is the most substantial one available, and it works on the deduction side rather than on the inclusion computation itself.
A cost segregation study separates depreciable basis into components with their own recovery periods — 5-year personal property, 7-year property where the asset type supports it, 15-year land improvements, and the shell at 27.5 or 39 years. Qualifying components can then be expensed under §168(k), which is 100% and permanent for property acquired after January 19, 2025; earlier acquisitions stay on the TCJA phase-down. Notice 2026-11 treats the acquired-date test as turning on the written binding contract date, not the closing date, which is worth checking before you assume a rate.
For a building already in service and depreciating straight-line, the look-back study is the relevant route: the change is made on Form 3115 under Rev. Proc. 2015-13, the cumulative §481(a) adjustment lands in the year of change, and no amended returns are required. A deduction arriving in the same year as a non-deferrable inclusion is the whole point.
Now the condition that determines whether any of it is usable. A qualifying QOF investment starts at zero basis, and §704(d) limits deductible losses to basis. Debt allocated under §752 normally supplies enough, but it is entity- and document-specific, and a partner without basis has a suspended deduction rather than a current one. Test it per partner before the client is told what the study is worth. The mechanics are set out in the zero-basis article and on our Opportunity Zone cost segregation page.
The exit position your workpaper should already reflect
Clients will ask whether accelerating depreciation now creates a recapture problem later. State the conditions rather than the headline.
After a ten-year hold, and only where the §1400Z-2(c) fair market value election is actually made, the basis of the QOF interest steps to fair market value and gain on a sale of that interest is excluded to the extent the election applies — including gain attributable to the depreciation accelerated during the hold. Treasury said as much twice in the T.D. 9889 preamble when it adopted a rule allowing electing owners to exclude all gains and losses rather than capital gains only.
Before year ten, or with no election made, recapture behaves entirely normally: §1245 ordinary recapture on depreciable personal property, and §1250 treatment on the building, with additional depreciation recaptured as ordinary income and the remainder falling into the 25% unrecaptured §1250 bucket. Note the classification point that a good deal of marketing gets wrong — for ordinary commercial and residential property, 15-year land improvements are §1250 property, not §1245, so parking, sidewalks, landscaping and site utilities follow the §1250 rules.
Two further conditions belong on the workpaper. Selling the QOF interest and the fund selling its assets are different transactions and must be analyzed separately — we work that through in the asset-sale exclusion article. And many states decouple from §1400Z-2 entirely, so state-level recapture can survive a federal exclusion. Check conformity before telling a client the exit is clean.
Frequently Asked Questions
Which form reports the December 31, 2026 Opportunity Zone inclusion?
The gain is reported on Form 8949 and carried to Schedule D, with the qualifying investment tracked on Form 8997 for the year. The inclusion is not a disposition, so the investment continues to be reported on Form 8997 afterward.
Can a cost segregation study offset the 2026 inclusion?
It does not change the inclusion computation under §1400Z-2(b)(2)(A), which is fixed by the lesser-of test. A cost segregation study creates depreciation deductions that may offset income in the same year, subject to the partner having sufficient basis under §704(d), including debt basis under §752.
Is a look-back cost segregation study available for a building already in service?
Yes. The change in method is made on Form 3115 under Rev. Proc. 2015-13, with the cumulative §481(a) adjustment taken in the year of change and no amended returns required. The study identifies the components; the preparer owns the adjustment.
Does depreciation recapture survive the ten-year Opportunity Zone election?
After a ten-year hold and where the §1400Z-2(c) election is actually made, gain on a sale of the QOF interest is excluded to the extent the election applies, including gain attributable to depreciation taken during the hold. Before year ten, or without the election, §1245 and §1250 recapture apply normally, and state conformity must be checked separately.
Do the vintage basis step-ups still apply to anyone?
Yes. They are closed classes rather than repealed provisions: 10% for investments made on or before December 31, 2021, and 15% total for investments made on or before December 31, 2019. Both must be picked up manually from the investment date.
Can the 2026 inclusion be deferred into an OZ 2.0 fund?
No. Notice 2026-40 §4.01(2) states the deemed inclusion must be recognized and is not re-deferrable. Gains from other transactions may be invested into a fund after January 1, 2027 and pick up the OZ 2.0 rules under OBBBA §70421(c)(5)(A).
Modeling a client's 2026 year with an OZ property in the fund? Run a free estimate on the depreciation side before you finalize the projection.
Where the engagement also needs the fund interest valued, Ellaval is ClickDrag Finance’s preferred vendor for valuation services — the entity to approach for fair market value valuations prepared for tax purposes, including estate and gift planning, impact fund investments and Opportunity Zone deals, working with CPAs and high-net-worth individuals. Reach Howard Krieger at howard@ellavoz.com.
