New Mexico cannabis tax has two layers for adult-use buyers: a state cannabis excise tax of 13% through June 30, 2026, and the state’s gross receipts tax, which varies by location. The excise rate climbs one percentage point every July 1 until it reaches 18% in 2030. Medical cannabis patients with a valid registry card pay neither tax.
Adult-Use Excise Tax Rate and Schedule
Every retail sale of adult-use cannabis triggers a state excise tax calculated on the price paid before other taxes are added. The Cannabis Regulation Act set the starting rate at 12% and built in automatic one-point annual increases beginning July 1, 2025.1Justia. New Mexico Code 7-42-3 – Cannabis Excise Tax
- Before July 1, 2025: 12%
- July 1, 2025 through June 30, 2026: 13%
- July 1, 2026 through June 30, 2027: 14%
- July 1, 2027 through June 30, 2028: 15%
- July 1, 2028 through June 30, 2029: 16%
- July 1, 2029 through June 30, 2030: 17%
- Beginning July 1, 2030: 18% (permanent cap)
The excise tax is a state-level levy only. New Mexico does not allow cities or counties to add their own cannabis excise tax on top of the state rate. Retailers need to flip their point-of-sale systems each July 1, because the next scheduled jump from 13% to 14% lands on July 1, 2026, and underpayments compound quickly once penalties attach.
Gross Receipts Tax at the Register
On top of the excise tax, adult-use sales are subject to New Mexico’s gross receipts tax. It’s technically imposed on the retailer’s revenue rather than the buyer, but most retailers pass the cost through. The statewide base rate is 4.875%.2Justia. New Mexico Code 7-9-4 – Imposition and Rate of Tax; Denomination as Gross Receipts Tax
The combined rate you actually see depends on where you’re shopping, because counties and municipalities add their own increments. Combined rates run from about 5% in rural areas to over 9% in some cities. Buy in Albuquerque and you’ll pay a meaningfully higher combined rate than someone shopping in a less populated county. The total at the register reflects both the excise tax and the location-specific gross receipts rate.
Medical Cannabis Exemptions
Patients enrolled in New Mexico’s medical cannabis program under the Lynn and Erin Compassionate Use Act get significant tax relief. The excise tax does not apply to medical cannabis sold to a patient or primary caregiver who presents a valid state-issued registry identification card at the time of purchase.1Justia. New Mexico Code 7-42-3 – Cannabis Excise Tax
Medical sales also qualify for a deduction from gross receipts tax. Under NMSA ยง 7-9-73.2, a retailer can deduct receipts from sales of cannabis products sold in accordance with the Compassionate Use Act, and must report the deduction separately to the Taxation and Revenue Department.3Justia. New Mexico Code 7-9-73.2 – Deduction; Gross Receipts Tax; Prescription Drugs and Cannabis Products
So medical patients avoid both taxes, keeping their costs well below adult-use prices. Retailers need documentation that cleanly separates medical and adult-use transactions, because claiming the deduction without supporting records invites an audit.
Federal Tax: Section 280E and the 2026 Rescheduling
State tax is only part of the picture for operators. Cannabis businesses also owe federal income tax, and Section 280E of the Internal Revenue Code has long barred any business trafficking in Schedule I or II controlled substances from claiming standard business deductions or credits.4Office of the Law Revision Counsel. 26 USC 280E – Expenditures in Connection With the Illegal Sale of Drugs Under 280E a retailer could deduct cost of goods sold but nothing else: no rent, no payroll, no marketing, no utilities. Effective federal rates often pushed past 70%.
On April 23, 2026, the Acting U.S. Attorney General issued a final order rescheduling state-licensed medical cannabis from Schedule I to Schedule III. Because 280E only blocks deductions for Schedule I and II substances, the reclassification removes the 280E penalty for state-licensed medical cannabis businesses. Treasury and the IRS have announced that forthcoming guidance will include a transition rule treating the rescheduling as effective for the business’s full taxable year that includes the date of the final order. For calendar-year taxpayers, 280E relief should apply retroactively to all of 2026 for qualifying medical activities.5U.S. Department of the Treasury. Treasury, IRS Announce Process for Tax Guidance Following DOJ Final Order on Medical Marijuana Rescheduling
The relief currently applies only to activities conducted under a state medical cannabis license. Adult-use-only operations remain subject to 280E until broader rescheduling takes effect. An expedited administrative hearing on broader rescheduling is scheduled to begin June 29, 2026, but no final rule has been issued for recreational cannabis as of this writing. New Mexico operators holding both medical and adult-use licenses will likely need to apportion expenses between the two categories until further guidance arrives. Talk to a tax professional before changing how you file; the Treasury guidance is expected but hasn’t been finalized.
Filing the Monthly Cannabis Tax Return
Cannabis retailers file the Cannabis Excise Tax Return (Form TRD-41415) monthly through the New Mexico Taxation and Revenue Department’s Taxpayer Access Point online portal. The return and payment are due by the 25th of the month following each reporting period.6New Mexico Taxation and Revenue Department. Cannabis Excise Tax Return
The return requires total gross receipts from all cannabis sales during the period, split between medical and adult-use transactions so the correct exemptions and deductions apply. Retailers also report any allowable deductions. Unit counts and dollar amounts need to match, because the state cross-references the return against seed-to-sale tracking data where every product carries a unique identifier from cultivation through retail.
The portal accepts electronic checks from business bank accounts and credit card payments and generates a confirmation number on submission. Keep that confirmation with your internal sales ledgers; the department can audit records going back several years.
Penalties for Late Filing or Underpayment
Missing the monthly deadline triggers civil penalties under New Mexico’s Tax Administration Act. For negligent failure to pay or file on time, the penalty is 2% per month (or any fraction of a month) applied to the unpaid tax, capped at 20% of the tax due, with a $5 minimum.7Justia. New Mexico Code 7-1-69 – Civil Penalty for Failure to Pay Tax or File Return
If the state determines you acted willfully, the stakes jump. Intentional evasion carries a penalty of 50% of the unpaid tax or $25, whichever is greater. Interest also accrues from the original due date until the tax is paid in full. New Mexico’s underpayment interest rate for early 2026 is approximately 6% annually.
A 2% monthly penalty doesn’t sound alarming until you apply it to a busy dispensary’s monthly excise liability. Ten months of delinquency hits the 20% cap, on top of interest. If you realize a deadline slipped, file and pay fast. Partial months count as full months for penalty calculations.
Cash Transaction Reporting on Form 8300
Cannabis businesses handle far more cash than typical retailers because banking access remains limited, and federal cash-reporting rules apply fully. Any business receiving more than $10,000 in cash from a single transaction, or from related transactions, must file IRS Form 8300 within 15 days. The IRS has explicitly stated that cannabis businesses must comply.8Internal Revenue Service. E-file Form 8300: Reporting of Large Cash Transactions
If a customer makes multiple payments on related purchases that add up to more than $10,000 over time, you file another Form 8300 each time the cumulative total crosses a new $10,000 threshold. Businesses required to file at least 10 information returns of other types during the calendar year must e-file Form 8300 rather than mailing paper. Keep copies and supporting documentation for five years.