Will the U.S. Department of the Treasury or the Internal Revenue Service (IRS) announce prior-year Section 280E relief for state-licensed medical marijuana businesses before Jan 1, 2027?

- [2026-04-22/23] Acting AG Blanche signed the final order moving FDA-approved marijuana products and state-licensed medical marijuana to Schedule III. The order "encourages" Treasury to consider retrospective §280E relief for prior years. It says nothing in the rule determines federal tax liability. https://www.saul.com/insights/alert/dea-reschedules-fda-approved-marijuana-products-and-state-licensed-medical-marijuana - [2026-04-23] Treasury/IRS press release (sb0471, fetched) said guidance is coming, including a transition rule. Rescheduling would generally first apply for the business's full taxable year that includes the order's effective date. It did not mention prior-year relief. https://home.treasury.gov/news/press-releases/sb0471 - [2026-04-28] Tax analysts read the Treasury release as strictly prospective and silent on retrospective relief. They advised against amending prior-year returns. https://www.currentfederaltaxdevelopments.com/blog/2026/4/28/anticipated-irs-guidance-following-the-rescheduling-of-medical-marijuana-a-technical-analysis-for-tax-professionals - [2026-03-06] The IRS filing in the *New Mexico Top Organics* Tax Court case argues that §280E still binds and that administrative reclassification does not change the tax treatment. The case is still pending. This is the IRS's litigating position and cuts against prior-year relief. https://www.cannabisbusinesstimes.com/cannabis-rescheduling/news/15834706/where-are-we-on-cannabis-rescheduling-its-been-months-since-the-us-attorney-generals-april-2026-order - [2026-09-09] The D.C. Circuit denied a stay and left the medical Schedule III order in effect. https://www.cannabisbusinesstimes.com/cannabis-rescheduling/news/15834706/where-are-we-on-cannabis-rescheduling-its-been-months-since-the-us-attorney-generals-april-2026-order - [2026-09-11] Cannabis Business Times (fetched) reported that Treasury/IRS had issued no §280E guidance of any kind. There was also no stated policy change on retroactivity. It called retroactivity and the treatment of non-registrants open questions. https://www.cannabisbusinesstimes.com/cannabis-rescheduling/news/15834706/where-are-we-on-cannabis-rescheduling-its-been-months-since-the-us-attorney-generals-april-2026-order - [2026-10-06 approx.] The DEA ALJ stayed the broader (adult-use) rescheduling proceeding over a GAO report. Responses are due 2026-10-13, after which the judge will decide whether to admit the report and when to lift the stay. This affects adult-use only, not medical prior-year relief. The page could not be fetched; this is from a search snippet. https://www.regulatoryoversight.com/2026/10/pending-marijuana-rescheduling-put-on-hold/ - [2026-10-05 approx.] A commentary piece said Treasury's April announcement "did not promise broad retroactive relief" for earlier years. Prior-year treatment remains unsettled. https://kindgreenbuds.com/news/irs-and-treasury-move-to-clarify-marijuana-tax-rules-after-schedule-iii-change/ - [2026 summer] Public companies such as Curaleaf warn that "there can be no assurance" any retroactive application will be permitted. https://shaygilmorelaw.com/cannabis-280e-relief-1-6-billion/ - [2026-07 to 2026-10] Refund claims face statute-of-limitations limits (3 years from filing or 2 years from payment). The IRS has reportedly sued or clawed back refunds, including against TerrAscend. https://cannabislegalizationnews.com/irs-280e-refund-clawback/ BOTTOM LINE: As of 2026-10-12, about 5.5 months after the April order, Treasury/IRS have issued no §280E guidance at all, and no prior-year relief. The IRS's only statements and litigation positions point to prospective (2026-forward) treatment. A Yes would need new guidance in the roughly 11 weeks left that goes beyond the April transition-rule preview. NOT FOUND: Any Treasury/IRS notice, proposed regulation or statement granting or promising prior-year §280E relief. Any scheduled date for the promised guidance. Any 2026-10 news of IRS guidance. I could not fetch the regulatoryoversight page or read the IRS.gov newsroom directly.

- [2026-04-22] DOJ/DEA final order moved FDA-approved marijuana products and marijuana held under a state medical license to Schedule III. It "encourages" Treasury to "consider" retrospective 280E relief for years when a licensee operated under a state medical license. The language is precatory, not binding. https://www.esapllc.com/rescheduling-tax-estate-planning-marijuana-2026/ - [2026-04-23] The Treasury/IRS release said guidance is forthcoming. It expects a transition rule applying rescheduling to the full taxable year that includes the effective date, which means 1 Jan 2026 for calendar-year filers. It said nothing about pre-2026 years. Commentators called the transition rule "strictly prospective" and noted that 280E's statutory conditions were met in earlier Schedule I years. https://www.currentfederaltaxdevelopments.com/blog/2026/4/28/anticipated-irs-guidance-following-the-rescheduling-of-medical-marijuana-a-technical-analysis-for-tax-professionals - [2026-05-05] MJBizDaily: most practitioners predict relief will be go-forward only. The IRS "can't afford" to refund roughly $15B in 280E taxes paid since 2018. Observers expect the question to end up in Tax Court. https://mjbizdaily.com/news/marijuana-rescheduling-how-far-back-will-280e-cannabis-tax-relief-go/615826/ - [2026-05-18] DOJ Tax Division sued TerrAscend to claw back an $8.3M refund that the IRS says was "erroneous". Earlier suits include New Mexico Top Organics in late 2024. This is a negative signal on Treasury's stance toward prior years. https://mjbizdaily.com/news/irs-wants-marijuana-mso-to-return-erroneous-280e-tax-refund-plus-interest/616104/ - [2026-05/06] Congressional Democrats urged prompt guidance. Two Republican lawmakers wrote that they are "troubled" by the relief and filed a bill to keep 280E regardless of scheduling status. https://www.mmjdaily.com/article/9880493/irs-and-treasury-add-section-280e-cannabis-guidance-to-2026-2027-priority-plan/ - [2026-08] Law-firm analysis (Shay Gilmore, around July) judged the IRS's "consistent public signal" on pre-2026 relief to be negative. Lothamer (around late August) said Treasury had not adopted any retrospective relief policy. https://shaygilmorelaw.com/cannabis-280e-relief-1-6-billion/ - [2026-09-29] The IRS/Treasury 2026-2027 Priority Guidance Plan lists "Guidance under §280E" among 121 items for the fiscal year from 1 Oct 2026 to 30 Sep 2027. It gives no deadline and no detail, so the guidance could land after 1 Jan 2027. The plan does not mention retroactivity. https://www.mmjdaily.com/article/9880493/irs-and-treasury-add-section-280e-cannabis-guidance-to-2026-2027-priority-plan/ - [2026-10-04] As of this report, no 280E guidance has been published, about 5.5 months after the April promise. Treasury's own 2026-27 plan frames the work as a full-year project. The broader DEA hearing on adult-use rescheduling was paused on 29 Sep. https://kindgreenbuds.com/news/irs-and-treasury-move-to-clarify-marijuana-tax-rules-after-schedule-iii-change/ - Reference class (my characterisation, not from the sources): IRS notices and revenue procedures on novel tax issues usually take many months after a promise, and the IRS rarely grants retroactive relief where the statute applied at the time. Here, 280E applied while marijuana was Schedule I. The statute of limitations on refund claims would also restrict any relief to open years (2022 or later), and some of those years are already closing. - Resolution ambiguity (my inference): a YES would likely need guidance that explicitly gives relief for pre-2026 years. A 2026 full-year transition rule, which is not prior-year relief, could be mis-resolved as YES if the wording is read loosely. Whether the 2026 rule counts as "prior-year" is unclear. BOTTOM LINE: Outside view points to NO. Treasury has stayed silent on, and shown hostility to, pre-2026 relief. The guidance is only a priority item with no deadline. No guidance has appeared in over five months, and the window to year-end is under three months. The main upside risk is a loosely read 2026 transition rule, or a surprise retroactive provision in guidance issued before 1 Jan 2027. NOT FOUND: Any Kalshi or other prediction-market pricing for this question (deliberately not searched for). Any expert probability estimate for retroactive relief. A primary Treasury or IRS page, because the fetched sources were secondary. The Marijuana Moment source article could not be checked directly. Any statement from Treasury or IRS on a release date for the guidance.

YES means: Treasury or the IRS publicly announces relief from §280E for prior (pre-2026) tax years for state-licensed medical marijuana businesses, on or before 2026-12-31. - [2026-10-05] Foley Hoag (fetched) says the IRS "has not taken the bait" on retrospective relief. It also has not yet published the promised transition and apportionment guidance. The Tax Court has asked the parties to brief whether it is bound by DOJ's choice not to make the medical order retroactive. That sets up an official hook: a Treasury decision on retroactivity could settle a live dispute. Mechanism for YES: the IRS might want to settle or narrow *New Mexico Top Organics* (Docket 19661-24). I found no sign it plans to. https://journal.cannabislawreport.com/foley-hoag-irc-section-280e-and-cannabis-tax-planning-recent-developments-and-practical-considerations/ - [2026-10-05] The Sept 29 Priority Guidance Plan (via Mugglehead, fetched) says the agencies "may revise" the project list during the year. The §280E entry does not say what form the guidance will take. A notice, which needs no notice-and-comment, is therefore possible and could come fast. The entry does not rule out addressing past returns. Mugglehead states it does not say how the guidance "might apply to past returns". https://mugglehead.com/treasury-irs-section-280e-guidance-2026-27-plan/ - [2026-04-23] The Treasury release (sb0471) says rescheduling "generally removes" §280E for businesses that no longer traffic as a result of the order. It also promises a transition rule. The most likely YES path is a single Notice or Revenue Procedure before 2027-12-31 (more precisely, before 2027-01-01) that adds a look-back, for example for open years 2022–2025 or via protective claims. Prerequisites: Bessent and IRS Chief Counsel sign off, an answer to the Lankford/Arrington objection on statutory authority, and a view that the revenue cost is acceptable. https://home.treasury.gov/news/press-releases/sb0471 - [2026-06-03] The Lankford/Arrington letter to Bessent asks what statutory authority allows a "retroactive tax benefit" and what it would cost the deficit. Treasury would likely need to answer these questions before granting prior-year relief. For a YES argument, the letter shows the idea is being treated as live, not dead. The letter is a pressure point against relief, not evidence for it. https://www.lankford.senate.gov/wp-content/uploads/2026/06/Lankford-and-Arrington-Letter-to-Treasury-280E.pdf - [2026-05-29] Seven House Democrats led by Horsford and Cohen wrote on 2026-05-28 asking for "prompt guidance". That adds political pressure on Treasury for guidance, but the letter did not ask for retroactivity specifically. https://www.cannabisbusinesstimes.com/legislation-and-regulation/cannabis-tax-law/news/15826367/7-house-democrats-demand-irs-treasury-provide-280e-cannabis-guidance - [2026-04-23] Baker Tilly describes Treasury's position as not yet announcing "whether or how" it would grant prior-year relief. This is an open question, not a refusal. The press release did not rule it out. That leaves room for a later announcement. https://www.bakertilly.com/insights/treasury-announces-tax-relief-for-medical-cannabis-industry - [2026-04-28] MJBizDaily: refund claims depend on open limitation periods. For timely filers the 2021 year closed in 2025 and 2022 closes in 2026. This creates a deadline-driven reason for Treasury to act, or for operators to file protective claims, before the end of 2026. In practice, the narrower the open window, the lower the cost of granting relief. https://mjbizdaily.com/news/will-your-cannabis-business-qualify-for-retroactive-280e-relief-heres-how-you-can-find-out/615893/ - [2026-10-10] The D.C. Circuit review of rescheduling will not finish its briefing before 2027-02-19, if the court adopts the Oct 9 joint proposal. The medical order stays in force meanwhile. A fast-guidance argument: Treasury does not need to wait for the courts to issue §280E guidance. https://mugglehead.com/doj-marijuana-rescheduling-appeal-february-briefing-proposal/ - [2026-10-05] Weak YES path: loose resolution. The 2026 full-year transition rule is not prior-year relief. A resolver might still count guidance that "applies rescheduling to the full taxable year that includes the effective date". Calendar-year taxpayers might read this as applying from Jan 1. This is a retroactive effect relative to the April 22 order. The Treasury release calls 2026 the first year, and no source describes it as prior-year relief. https://www.currentfederaltaxdevelopments.com/blog/2026/4/28/anticipated-irs-guidance-following-the-rescheduling-of-medical-marijuana-a-technical-analysis-for-tax-professionals BOTTOM LINE: The best YES case is a single notice before 2027 that goes beyond the transition rule and adds a look-back. The pressure for it comes from the Blanche order's "consider" language and the closing refund windows. No source shows Treasury has committed to this, and the IRS is litigating the opposite position in the Tax Court. NOT FOUND: Any Treasury or IRS statement, draft or OIRA listing promising prior-year §280E relief. Any scheduled release date for the guidance. Any 2026-10 report that the guidance had been published. I did not open the IRS priority plan PDF directly, only Mugglehead's description of it.

YES means: Treasury or the IRS publicly announces relief from §280E for prior tax years (before the 2026 transition year) for state-licensed medical marijuana businesses, between now and Jan 1, 2027. - [2026-09-22] Foley Hoag's analysis (carried by MMJDaily, fetched) says the IRS "has not acted" on the DOJ's retrospective-relief encouragement. It also has not published the apportionment and transition guidance it promised on April 23. The firm says IRS cannabis audit activity is at an all-time high and the agency rejects "non-280E" positions. That is enforcement posture, not a relief posture. https://www.mmjdaily.com/article/9875588/section-280e-litigation-and-irs-audit-pressure-intensify-as-rescheduling-guidance-stalls/ - [2026-07-31] The IRS sur-reply in *New Mexico Top Organics* maintained that courts look only at whether a substance is listed. That position is incompatible with conceding prior-year relief. The IRS is still litigating against pre-2026 relief at the same time as any announcement would have to come. https://www.mmjdaily.com/article/9875588/section-280e-litigation-and-irs-audit-pressure-intensify-as-rescheduling-guidance-stalls/ - [2026-09 report] The Tax Court asked the parties to brief whether it is bound by DOJ's decision not to make the medical order retroactive. So the order itself is being read as non-retroactive. A Treasury concession would undercut the IRS's own brief and pre-empt the court, so the government has an institutional reason to wait for the ruling. https://www.mmjdaily.com/article/9875588/section-280e-litigation-and-irs-audit-pressure-intensify-as-rescheduling-guidance-stalls/ - [2026-10-05] Mugglehead (fetched) says the Sept 29 Priority Guidance Plan has no completion deadline and no detail on how §280E guidance would treat past returns. It says the agencies may revise the list during the year. Plan entries often take most of the plan year. The window ends Sept 30, 2027, and the question closes about nine months before that. https://mugglehead.com/treasury-irs-section-280e-guidance-2026-27-plan/ - [2026-10-09] A DOJ and petitioner joint filing proposes Feb 19, 2027 as the final briefing date in the D.C. Circuit challenge to the rescheduling order. The medical order's legal footing will therefore stay under review past year-end. Treasury has a reason to avoid expansive refund commitments until that is settled. https://mugglehead.com/treasury-irs-section-280e-guidance-2026-27-plan/ - [2026-06-28 and 2026-05-18] The IRS's June 2024 bulletin (IR-2024-177) said amended-return refund claims on 280E "are not entitled." The TerrAscend filing says cannabis was a controlled substance in 2020. Both are the agency's written position that earlier years were properly taxed. Reversing that needs a policy break that no source shows is planned. https://mjbizdaily.com/news/irs-wants-marijuana-mso-to-return-erroneous-280e-tax-refund-plus-interest/616104/ - [2026-04-23] Mechanism: the Treasury release's transition rule is framed as the year in which rescheduling "first" applies. Prior years are therefore outside it by its own terms. Even if guidance lands before Jan 1, a rule limited to 2026 forward is the likeliest content. Resolution on a plain reading should be NO. https://home.treasury.gov/news/press-releases/sb0471 - [2026-05-21] Ultra Health (Tax Court) is asking for relief for 2017–2019 on a "not within the meaning of Schedule I" theory. If Treasury granted retroactive relief administratively, the litigation would become moot. The IRS has chosen to defend the case instead, and the Tax Court route (not Treasury) is the likelier channel for any prior-year outcome. https://www.cannabisbusinesstimes.com/cannabis-rescheduling/news/15825771/cannabis-business-leans-on-schedule-iii-listing-asks-us-tax-court-to-recognize-280e-refunds-for-prior-years - [2026-10-06] Fiscal/administrative competition: Treasury and the IRS are issuing other guidance, such as Notice 2026-62 on ETFs, and the plan lists 121 items, many of them One Big Beautiful Bill Act implementation. §280E sits under "Other Priorities," not the OBBBA block, so it is not statutorily time-pressed. https://www.morganlewis.com/pubs/2026/10/treasury-and-irs-guidance-target-certain-etf-transactions-and-other-investment-fund-strategies BOTTOM LINE: Nothing from Treasury or the IRS in the last five months points to prior-year relief. The IRS is litigating the opposite position, the plan has no deadline, and the D.C. Circuit challenge runs past year-end. Even if guidance appears before Jan 1, its likely content is a 2026-forward transition rule, which does not meet a literal "prior-year" test. NOT FOUND: Any Treasury or IRS statement, draft or leak signalling prior-year relief or a release date for §280E guidance. Any October 2026 IRS notice on §280E. A ruling in *New Mexico Top Organics*. I did not fetch the IRS Priority Guidance Plan PDF directly.