Last verified: May 2026
The Limits Table
| Form | Daily limit (adult use, 21+) | Daily limit (medical, MMR card) |
|---|---|---|
| Cannabis flower | 1 oz (28 g) | 2 oz (56 g) standard, exceptions to 6 oz with physician approval |
| Concentrate | 8 g | 40 g standard |
| Edibles (THC) | 800 mg | 20,000 mg standard |
| ID required | Government-issued photo ID; out-of-state IDs accepted | Colorado MMR card + government photo ID |
| Hours | Until midnight (extended from 10pm in 2021) | Same as adult-use |
| Tax (combined effective) | ~27.9% | ~7.7% (state + Denver local; no 15% rec tax) |
Daily purchase limits apply per transaction at one MMTC; multiple-store same-day purchases (“looping”) are policy-violations and were the subject of the Sweet Leaf 2017 enforcement action. Cash remains the dominant payment method; most dispensaries operate on-site ATMs.
Hours
Following the 2021 reforms, Denver dispensaries can sell until midnight (extended from 10 p.m.). Most operators run 9 a.m. or 10 a.m. opening to midnight closing on weekdays and weekends, with variation by location. Some smaller boutique stores close earlier (8 p.m. or 9 p.m.); a handful operate 8 a.m. opening for early-morning patient access.
Major holidays vary by operator. Christmas Day and New Year’s Day are closure-common; July 4th and Thanksgiving Day vary. Easter Sunday is operator-dependent. The day before Thanksgiving is typically the highest-volume sales day of the year.
ID Requirements
Buyers must be 21 or older with a valid government-issued photo ID:
- U.S. driver’s license (any state)
- U.S. state ID card (any state)
- Military ID
- U.S. passport or passport card
- Foreign passport (with secondary U.S.-government-issued ID such as I-94)
Out-of-state IDs are accepted; same purchase limits apply to out-of-state buyers as to Colorado residents.
Medical Patient Documentation
Medical patients with a valid Colorado Medical Marijuana Registry (MMR) card receive higher purchase limits and tax exemption (no 15% Colorado retail tax, no 5.5% Denver special cannabis tax). The MMR card must be presented alongside government photo ID at point of sale. Tax detail.
Daily Purchase Limits — The Single-Transaction Cap
Adult-use buyers (21+) can purchase per single transaction:
- 1 ounce (28 grams) of flower
- 8 grams of concentrate (vape, dab, RSO, distillate)
- 800 mg of THC in edible form (which can be a combination of edibles totaling 800 mg)
The combination is allowed in any mix that doesn’t exceed any single-form limit. For example, a buyer can purchase 1 oz flower + 8 g concentrate + 800 mg edibles in the same transaction.
The Possession Limit
Colorado’s personal-possession limit was raised to 2 ounces of flower (from 1 oz) effective January 1, 2024 under HB 21-1090. Concentrate possession remains 8 g; edible possession remains 800 mg.
The Looping Problem
Multiple-store same-day purchases (“looping”) — visiting two or more dispensaries in the same day to exceed the daily purchase limit — were the subject of the Sweet Leaf 2017 enforcement action. The case resulted in restructuring of the Sweet Leaf chain and reinforced operational compliance discipline across Colorado dispensaries.
Most Denver operators now require government-photo-ID scan at every transaction and link transactions to the customer record (within their own POS system) to prevent same-day double-purchases at their own stores. Cross-operator looping is harder for individual operators to detect; MED has addressed this through enhanced statewide reporting.
Payment
Cash remains the dominant payment method due to federal banking restrictions (FinCEN cannabis guidance). Most dispensaries operate on-site ATMs with $2.50–$5 transaction fees. Some support:
- Debit-routed-as-cash proprietary apps (occasionally suspended after card-network compliance reviews)
- ACH transfers via specific cannabis-friendly fintech platforms
- Cash-on-delivery for delivery orders
Major card networks (Visa, MasterCard, Discover) prohibit cannabis purchases. Federal banking detail.
Tipping
Tipping budtenders is standard but not expected. Most Denver dispensaries permit cash tips at the counter. Industry standard is $1–$3 per transaction, scaling with purchase size and consultation depth.
Discounts and Loyalty Programs
Denver dispensaries offer a wide range of discount programs:
- First-time customer — 10–20% common
- Veteran — 10–20% with VA ID, DD-214
- Senior (55 or 60+) — 10% common
- Industry employee with cannabis-industry badge
- Daily promotions rotating Sunday–Saturday
- Loyalty programs with point accumulation; some operators tier rewards
- Birthday discount
- EBT/SNAP recipient discount at participating locations
What Out-of-State Tourists Should Know
For tourists visiting Denver from out of state (Texas, Florida, Arizona, California — the top origin states):
- The 1 oz / 8 g / 800 mg daily limits apply to you the same way they apply to Colorado residents.
- You cannot legally take cannabis out of Colorado — federal felony to cross state lines.
- DIA has no amnesty box. Plan consumption logistics before you fly. DIA airport.
- Most hotels prohibit cannabis use in rooms. A small market of “Bud and Breakfast” / 420-friendly Airbnbs caters to cannabis tourists.
- Public consumption is prohibited; use a licensed lounge (Tetra, Cirrus, mobile) or a private permitted residence.
Companion Page — Dispensary Overview
For the broader Denver dispensary picture, see our dispensary overview page.
For in-depth cannabis education, dosing guides, safety information, and research summaries, visit our partner site TryCannabis.org