Hemp vs marijuana: legal distinction for buyers

Hemp THC business vs licensed cannabis business: comparison

Issue	Hemp or hemp-derived THC business	State-licensed marijuana business
Federal status	Lawful if products meet the hemp definition in 7 U.S.C. 1639o	Controlled substance. State-licensed medical marijuana is Schedule III since 28 April 2026; adult-use remains Schedule I
The legal line	Until late 2026: 0.3% delta-9 THC by dry weight. After: 0.3% total THC including THCA, and 0.4 mg total THC per container for finished products	Anything from the plant that is not hemp
Licence	Grower registration; state food, retail, or hemp-product permits where required. Usually uncapped	State licence per activity and location, often capped, with local approval
Selling the business	Ordinary business sale; permits re-applied for	Regulator approval of the new owners, see change of ownership approval
Interstate sales	Allowed federally for true hemp; blocked or restricted by a growing list of states	Not allowed
Federal income tax	Ordinary deductions	Section 280E disallows deductions for adult-use; qualifying medical activity is out from the April 2026 order
Banking and cards	Available but inconsistent; processors drop intoxicating products	Limited; see cannabis banking status
Bank and SBA acquisition loans	Possible only if the lender can document that every product is lawful	Not available; see why SBA and banks are unavailable
Inventory records	No state package-level ledger	State track-and-trace
Main risk to value	The product line stops being legal	Tax burden, price compression, transfer approval
What holds value	Brand, distribution, compliant formulations	The licence, the location, and cash flow

Where is the legal line between hemp and marijuana?

It is a THC test written into federal statute, and it is changing.

The 2018 line. The 2018 Farm Bill defined hemp as the cannabis plant and its derivatives with no more than 0.3% delta-9 THC on a dry-weight basis, and removed that material from the Controlled Substances Act. Because the test looked only at delta-9 THC by weight, it let through delta-8 made from CBD, high-THCA flower, and edibles and drinks heavy enough to carry an intoxicating dose inside the 0.3% limit.

The new line. P.L. 119-37, enacted 12 November 2025, amended 7 U.S.C. 1639o. Hemp becomes cannabis with a total THC concentration, including THCA, of no more than 0.3%. The definition excludes cannabinoids that the plant cannot produce, cannabinoids that occur in the plant but were synthesised or made outside it, and finished hemp-derived cannabinoid products with more than 0.4 milligrams of total THC, or similar-acting cannabinoids, per container. It adds a protected category of industrial hemp for fibre, grain, seed, and research.

When it takes effect. The original date was 12 November 2026. A stopgap funding law, H.R. 6500, signed on 2 September 2026, moved most of the change to 11 December 2026. According to hemp counsel’s reading of the amendment, the total-THC test, the 0.4 milligram cap, and the exclusion of converted cannabinoids are delayed to 11 December, while cannabinoids the plant cannot produce naturally still lose hemp status on 12 November. Bills to delay the change to 2028, repeal it, or replace it with a regulated framework were pending in committee as of early September 2026 with no votes scheduled. As of 3 September 2026 the FDA had not published the cannabinoid lists or the definition of “container” the law called for.

A product that falls outside the definition is marijuana under federal law. How the product categories are treated state by state is covered in intoxicating hemp products: regulatory status.

What this means if you are buying a hemp business

Price the business on what it can sell after the definition changes.

1. Sort revenue by product. Split trailing revenue into (a) industrial hemp and ingredients, (b) cannabinoid products with no detectable THC, (c) products with THC at or under 0.4 milligrams per container, and (d) everything else. Category (d) is the part at risk.
2. Get certificates of analysis for every product. Check total THC per container, not delta-9 percentage by weight.
3. Illustrative arithmetic. A hemp drinks brand with $4.0 million of trailing revenue, of which $3.4 million comes from 5 milligram and 10 milligram cans, has $0.6 million of revenue that clearly survives. A multiple applied to $4.0 million values a business that may not exist after 11 December 2026.
4. Check state law separately. Federal hemp status does not override state bans. Ohio’s SB 56 sends intoxicating hemp products through licensed marijuana dispensaries. California’s AB 8 moves hemp-derived cannabinoid products other than CBD isolate into the licensed cannabis supply chain. Texas adopted a total-THC test by agency rule in March 2026, with litigation continuing.
5. Use structure to share the risk. Earn-outs tied to post-change revenue, a lower fixed price, or a closing after the effective date all move definition risk back toward the seller. See earn-outs in cannabis deals.
6. Look for state-licensed hemp channels. Minnesota licenses lower-potency hemp edible retailers, manufacturers, and wholesalers under its Office of Cannabis Management. A state licence does not change federal status after the definition shifts, but it shows which states intend to keep a legal channel open.

Sellers face the same analysis from the other side; see selling a hemp or CBD business and the hemp and CBD businesses hub.

What this means if you are buying a licensed marijuana business

The hemp change affects you in two ways.

• Competition. Unlicensed hemp THC products have competed with licensed stores without 280E, excise tax, or licence costs. Where states and the federal change close that channel, licensed retail may regain sales. Do not underwrite that as a forecast; treat it as upside.
• Your own shelves. A licensed business that also sells hemp-derived products outside the state system needs the same product-by-product review. After the change, those products are either inside the state’s marijuana framework or not lawful to sell.

The rest of the licensed-business analysis is unchanged: the licence is the scarce asset, the regulator approves the buyer, and federal law still shapes tax and financing. Start with federal cannabis law and business sales.

Which fits you?

If you want	Consider
Interstate distribution and brand building, and can accept legislative risk	Hemp, limited to products that meet the new definition
A scarce, regulator-protected asset with local cash flow	A licensed marijuana business in a capped market
Bank financing	Non-intoxicating hemp or ancillary businesses
No exposure to federal controlled-substance law	Industrial hemp or ancillary only

This is general information, not legal advice. The federal dates above were current as of mid-September 2026 and Congress has changed them once already.