OZ rule changes, dated and sourced.

Treasury and IRS notices, proposed rules and governor nomination actions that change how Opportunity Zones work. One line each on what changed and who it affects, linked to the primary source. 7 federal items and 7 governor actions, checked against the source as of October 14, 2026.

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1. October 8, 2026 · Governor action · Gov. Bob Ferguson / Washington Commerce

   Washington: Gov. Ferguson nominates 99 OZ 2.0 tracts

   Washington nominated 99 low-income and rural communities for OZ 2.0. Affects investors and developers looking at Washington tracts from 2027.

   Source: Washington Commerce, Oct. 8, 2026

2. September 28, 2026 · Governor action · Gov. Jared Polis / OEDIT

   Colorado: Polis administration submits the maximum 91 tracts

   Colorado submitted the maximum 91 areas for federal OZ designation. Affects investors and projects in Colorado from 2027.

   Source: Colorado OEDIT, Sept. 28, 2026

3. September 28, 2026 · Treasury / IRS · IRS / Treasury (Federal Register)

   Correction moves the OZ fund reporting comment deadline to October 26, 2026

   A Federal Register correction changes the comment deadline on the proposed OZ information-reporting rules (REG-116506-25) from October 16 to October 26, 2026. Affects funds, OZ businesses and advisers who plan to comment.

   Source: Federal Register: correction C1-2026-18574

4. September 28, 2026 · Governor action · Gov. Matt Meyer

   Delaware: Gov. Meyer announces 25 nominated communities

   Delaware named the 25 census tracts it nominated for OZ 2.0. Affects investors and projects in Delaware from 2027.

   Source: Delaware News, Sept. 28, 2026

5. September 25, 2026 · Governor action · Gov. Mike Braun / IEDC

   Indiana: Gov. Braun submits 126 OZ 2.0 nominations

   Indiana nominated 126 of its then-501 eligible census tracts for the 2027-2036 cycle (Treasury later added two tracts; 503 eligible, cap unchanged). Affects investors and projects in Indiana from 2027.

   Source: IEDC, Sept. 25, 2026

6. September 24, 2026 · Governor action · Gov. Spencer Cox / GOED

   Utah: Gov. Cox recommends 37 census tracts

   Utah recommended 37 census tracts for OZ 2.0; the state says Treasury is expected to certify selections in December. Affects investors and projects in Utah from 2027.

   Source: Utah GOED, Sept. 24, 2026

7. September 22, 2026 · Treasury / IRS · IRS / Treasury

   IRS Notice 2026-55: request for comments on OZ 2.0 investment rules

   The IRS asks for comments on how the OZ rules should work after the 2025 law, including the working capital safe harbor, the 90-percent test and the 10% (30% rural) basis step-up. Comments are due November 23, 2026. Affects QOF investors, fund sponsors and OZ businesses.

   Source: IRS Notice 2026-55 (PDF) · IRS GuideWire, Sept. 22, 2026 · IRS: Opportunity zones guidance list

8. September 11, 2026 · Treasury / IRS · IRS / Treasury (Federal Register)

   Proposed rules: new OZ fund information reporting and QOF certification procedures (REG-116506-25)

   Proposed regulations would require qualified opportunity funds to file information returns and send statements to investors who dispose of interests, and OZ businesses to send statements to their funds. Affects QOF sponsors, OZ businesses and investors.

   Source: Federal Register: proposed rule 2026-18574

9. July 29, 2026 · Governor action · Gov. Albert Bryan Jr.

   U.S. Virgin Islands: Gov. Bryan nominates all 18 eligible tracts

   The USVI nominated all 18 of its eligible census tracts, subject to Treasury review. Affects investors and projects in the Virgin Islands from 2027.

   Source: Government of the USVI release

10. July 22, 2026 · Governor action · Gov. Jim Pillen

    Nebraska: Gov. Pillen nominates 28 tracts

    Nebraska nominated 28 census tracts for federal OZ designation. Affects investors and projects in Nebraska from 2027.

    Source: Office of Gov. Pillen, July 22, 2026

11. July 1, 2026 · Treasury / IRS · Treasury

    Treasury opens the OZ 2.0 nomination period for governors

    Treasury opened the period for states, territories and DC to nominate census tracts as new Opportunity Zones. Affects governors and state agencies choosing tracts, and investors watching which areas qualify from 2027.

    Source: Treasury press release, July 1, 2026

12. June 18, 2026 · Treasury / IRS · IRS / Treasury

    IRS Notice 2026-40: transitional guidance from the original zones to OZ 2.0

    Announces planned proposed regulations and transition rules for investments and projects that straddle the switch from the original zones to OZ 2.0. New zones run January 1, 2027 to December 31, 2036. Affects existing QOF investors and projects in current zones.

    Source: IRS Notice 2026-40 (PDF) · Internal Revenue Bulletin 2026-28

13. April 6, 2026 · Treasury / IRS · IRS / Treasury

    Rev. Proc. 2026-14: how governors nominate OZ 2.0 census tracts

    Sets the procedure for governors to nominate census tracts for designation effective January 1, 2027, and lists the eligible tracts, including fully rural ones. Affects state agencies, local governments and anyone checking whether a tract can qualify.

    Source: IRS news release IR-2026-45 · Rev. Proc. 2026-14 (PDF)

14. September 30, 2025 · Treasury / IRS · IRS / Treasury

    IRS Notice 2025-50: lower substantial-improvement threshold in fully rural zones

    Confirms that for property in a current zone made up entirely of a rural area, substantial improvement now needs more than 50% of basis instead of 100%, effective July 4, 2025, and lists 3,309 such zones. Affects developers and funds improving property in rural zones.

    Source: IRS news release IR-2025-96 · IRS Notice 2025-50 (PDF)

We add an item only after reading the issuing agency's own document or release. State filings without a dated primary release stay on the OZ 2.0 tracker until one is published.