IRS Notice 2026-55 restates the OZ 2.0 rule for QOF investments made after December 31, 2026: hold five years and the deferred gain's basis rises 10%, or 30% in a qualified rural opportunity fund (QROF). On a $500,000 long-term gain for a Texas investor at a 23.8% federal rate, our calculator shows year-five tax of $107,100 in a standard QOF and $83,300 in a QROF, a $23,800 difference. Rev. Proc. 2026-14 identifies 8,334 of the 25,332 eligible tracts as entirely rural.
The rule. IRS Notice 2026-55 restates the 2025 law's OZ 2.0 deferral terms: “For amounts invested in QOFs after December 31, 2026,” deferred gain “is included in gross income no later than five years after the date of the qualifying investment. If an investment is held for at least five years, its basis is increased by 10 percent of the deferred gain, or by 30 percent in the case of an investment in a qualified rural opportunity fund (QROF).”
What the step-up does. A higher basis means less of the deferred gain is taxed when it comes due in year five. With a 10% step-up, 90% of the deferred gain is taxed. With a 30% step-up, 70% is. Separately, the notice says that for investments held at least 10 years, the investor can elect a basis equal to fair market value at sale, which applies to the fund's appreciation in both cases (Notice 2026-55).
Worked example: $500,000 in Texas. We ran our OZ calculator on a $500,000 long-term gain for a Texas resident, with a 10-year hold and an assumed 8% annual return. The calculator applies a 23.8% rate: the 20% top federal long-term rate plus the 3.8% net investment income tax, and Texas has no state income tax. The year-five tax on the deferred gain comes out as follows:
• Standard QOF (10% step-up): $500,000 × 90% × 23.8% = $107,100
• Rural QROF (30% step-up): $500,000 × 70% × 23.8% = $83,300
The rural fund saves $23,800 of tax in year five. That is 20 percentage points of step-up times the 23.8% rate on $500,000. In the calculator's 10-year model, ending OZ 2.0 value rises from about $972,000 to about $996,000. Its pay-the-tax-now baseline ends at about $717,000.
The fine print in that example. The calculator uses simplified top-bracket rates and an assumed return. It is an illustration, not tax advice, and actual results depend on the investor's bracket, the fund and the hold period. The $23,800 difference does not depend on the return assumption. It comes only from the step-up percentages in the notice and the tax rate.
Which tracts count as rural. Rev. Proc. 2026-14 says Treasury identified 25,332 tracts eligible for nomination as 2027 zones, and that “8,334 tracts are comprised entirely of a rural area.” The appendix flags each one. The notice also points to Notice 2025-50 for guidance on the definition of “rural area” and on the lower substantial-improvement threshold for property in an all-rural zone (Notice 2026-55). Only tracts that Treasury certifies become zones, starting January 1, 2027. See which states have nominated rural tracts on our tracker.
Open questions. Notice 2026-55 says “the OBBBA amendments to § 1400Z-2 provide enhanced benefits for qualifying investments in rural areas,” and asks for public comments on implementing OZ 2.0, due November 23, 2026 (Notice 2026-55). Until final guidance arrives, investors should confirm with the fund how it qualifies as a QROF. Try both settings with the Rural / Non-rural toggle in the calculator.
Original reporting by Marcus Delgado for Opportunity Zone Invest, an independent OZ 2.0 research site. Facts are drawn from the primary sources cited above per our editorial standards. Nothing here is tax, legal, or investment advice.
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