State 280E decoupling

What does it mean for a state to decouple from 280E?

Most state income taxes start from federal taxable income. Because federal section 280E inflates that figure by disallowing operating expenses, a conforming state taxes the same inflated number. A state “decouples” by adding a subtraction to its own code: licensed cannabis businesses take the federally disallowed expenses off state taxable income. The federal return does not change.

The value is easy to estimate: state rate multiplied by disallowed expenses. Illustrative: $1,200,000 of disallowed expenses at a 9% state corporate rate is $108,000 a year of state tax saved.

Table: decoupling statutes and effective dates

This table lists states where the statute or an official publication was retrieved in September 2026. It is not a complete national list. Other states have acted; confirm any state not shown against its own code before relying on it.

State	Authority	First tax year	Scope notes
Colorado	C.R.S. 39-22-104(4)(r) (individuals); 39-22-304(3)(m) (corporations)	Beginning on or after 1 Jan 2014	Taxpayer must be licensed under the Colorado Marijuana Code
Oregon	ORS 316.680(1)(i)	Enacted 2016 (HB 4014)	Deductions for production, processing or sale of marijuana items authorised under ORS chapter 475C
California	Rev. and Tax. Code 17209 (personal income tax)	1 Jan 2020 through tax years beginning before 1 Jan 2030	Licensees carrying on commercial cannabis activity; section repealed 1 Dec 2030 unless extended. The Franchise Tax Board notes that the Corporation Tax Law does not conform to 280E, so corporate licensees were already able to deduct
Maryland	Tax-General 10-208	Beginning after 31 Dec 2021	State-licensed or registered growers, processors, dispensaries and other cannabis establishments
Massachusetts	Chapter 180 of the Acts of 2022	Signed 11 Aug 2022	Marijuana establishments and medical marijuana treatment centers
Illinois	35 ILCS 5/203	Beginning on or after 1 Jan 2023	Adult-use establishments under the Cannabis Regulation and Tax Act and medical cultivation centers and dispensing organizations
New York	Tax Law 612(c) and parallel corporate provisions	1 Jan 2023	Wording is tied to production and distribution of adult-use cannabis products under Cannabis Law article 20-C
New Jersey	P.L. 2023, c. 50	Beginning on or after 1 Jan 2023	Amends both the Corporation Business Tax and the Gross Income Tax; also allows a state deduction for research expenditures blocked federally
Minnesota	Minn. Stat. 290.0132 (individuals), with a parallel corporate subtraction	In current statutes (2025)	Cannabis or hemp license holders
Michigan	Michigan Regulation and Taxation of Marihuana Act; Treasury Revenue Administrative Bulletin 2020-17	Adult-use era (2019 onward)	Treasury describes the deduction for adult-use licensees under the 2018 initiated law; confirm medical-only treatment
Pennsylvania	Act 56 of 2024, clarified by Act 123 of 2024	Beginning after 31 Dec 2023	Medical permit holders; the first act covered grower-processors only and the second added dispensary permits

States that do not tax net business income, such as Washington and Nevada, have nothing to decouple.

Traps in the scope language

1. License category. New York’s subtraction is written around adult-use cannabis. Pennsylvania’s covers medical permits because that is the only licensed market. Michigan’s guidance addresses adult-use licensees. A medical-only or dual operator should read the statute against each license it holds.
2. Entity type. A corporate-tax-only fix does nothing for an LLC taxed as a partnership whose owners pay personal income tax. California is the clearest example: corporations could always deduct, while individuals and pass-through owners needed section 17209.
3. Sunsets. California’s personal income tax provision ends with tax years beginning before 1 January 2030. A five-year projection in a California deal crosses that date.
4. Local income taxes. City-level income and business taxes follow their own rules and need a separate check.
5. Must be licensed. Every statute ties the subtraction to holding a state license. Expenses from a period before licensure, or in an unlicensed affiliate, do not qualify.

How the April 2026 medical rescheduling interacts with state decoupling

Since the April 2026 order, medical-licensed activity is outside federal 280E going forward. For that activity the federal starting figure already reflects ordinary deductions, so there is less for the state subtraction to do. In a state that has not decoupled, a medical operator now gets the deductions on both returns simply through conformity, while an adult-use operator in the same state still gets them on neither. Dual operators will need the same medical and adult-use expense split for the state return that they use federally. The scenarios are set out in rescheduling tax scenarios.

What buyers and sellers should do with this

• Sellers: show state and federal tax separately in your normalised financials. A buyer comparing targets across states will want to see the state saving as its own line. See cannabis financial statements under 280E.
• Buyers: tie each open state return to the statute’s first effective year and scope. Deductions claimed too early, or by an entity type the statute does not cover, are a state tax exposure to price or hold back. See tax liabilities and holdbacks in a sale.
• Both: in valuation, state decoupling raises after-tax cash flow by a modest, calculable amount. It does not change the federal arithmetic that drives most of the 280E valuation discount.

This page is general education, not tax advice. State conformity rules change with each legislative session; have a CPA confirm the current statute for your state, license and entity type.