Michigan medical marijuana reciprocity is real. Michigan law honors valid medical cards from other states, and licensed medical provisioning centers may sell to visiting patients who show an unexpired card and photo ID. If you're 21 or older, there's an even simpler path: shop adult-use with your government-issued ID. Either way, what you buy has to stay in Michigan. Here's what visitors should know.
What Michigan medical marijuana reciprocity means
Michigan's medical marijuana law gives a visiting patient's registry card from another state the same force and effect as a Michigan card. State rules then let licensed provisioning centers sell to visiting patients, as long as the store checks a valid, unexpired card and photo ID and applies Michigan's medical purchase limits.
You can't get a Michigan card as a visitor, though. Those go only to Michigan residents, who can learn how to apply in our medical card guide.
Possession protection vs. buying at a provisioning center
Those are two different protections:
- Possession. With your valid card and photo ID, you're treated like a Michigan patient, who may carry up to 2.5 ounces of usable marijuana.
- Buying. Purchases happen at licensed medical provisioning centers. They count as medical sales, so you skip Michigan's 10% adult-use excise tax and pay only the 6% sales tax.
Michigan patients are protected from arrest only when they show a valid registry card with photo ID, so carry both.
Who can buy what
| Visitor | Where to buy | What to show |
|---|---|---|
| 21 or older, no card | An adult-use store | Valid government-issued photo ID |
| Patient with a valid out-of-state card | A licensed medical provisioning center | Your unexpired card and photo ID |
| Under 21, no card | Nowhere in Michigan | Not applicable |
At High Society, adult-use shopping is for customers 21 and older. Valid government IDs from other states are accepted in most cases, so bring yours and our team will check it. Medical patients 18 and older with a valid card are welcome too, but call your store before counting on an out-of-state card.
What to bring
- Photo ID issued by a government, such as a driver's license or passport. Michigan stores check ID before every sale.
- If you're buying as a patient, your state's medical card, unexpired.
- A plan for the drive: keep purchases sealed and out of reach, and never use cannabis while driving.
Purchase limits for visitors
| Visiting patient | Adult-use shopper (21+) | |
|---|---|---|
| Limit | 2.5 oz a day and 10 oz a month, or the equivalent in infused products | 2.5 oz per transaction, up to 15 g as concentrate |
| Taxes | 6% sales tax | 10% excise plus 6% sales tax |
Medical purchases are checked against those daily and monthly limits in Michigan's statewide monitoring system. See our Michigan cannabis laws guide for possession limits and our Michigan cannabis FAQ for shopping questions.
Going home: why cannabis can't cross state lines
Whatever you buy in Michigan stays in Michigan. Michigan's protections stop at the state line, and no federal law allows carrying cannabis across it, even for patients. As of October 2026, the neighbors add their own risks:
- Indiana has no medical or adult-use program, and possessing any amount is a crime.
- Ohio allows possession only of cannabis bought from an Ohio-licensed dispensary or legally grown at home.
- Illinois says cannabis shouldn't be transported across state lines.
- Wisconsin makes possession a crime.
As our New Buffalo pages put it: enjoy responsibly in Michigan, and don't travel across state lines with cannabis. Our guide to using a medical card in other states covers the neighbors in more depth.
Digital cards, expired cards and other edge cases
- Expired card. It doesn't count. Michigan requires a valid, unexpired card, so shop adult-use instead if you're 21 or older.
- Digital or printed card. Michigan accepts another state's card or its equivalent, but the store still has to check it, so call ahead and ask which formats work.
- Paperwork that isn't a card. An application receipt or a doctor's form may not be enough. In Michigan's own program, neither counts as a card.
- Under 21 without a card. You can't buy cannabis in Michigan.
Before you visit: call your store, or order ahead
High Society has eight Michigan stores, including New Buffalo, close to the Indiana border off I-94 Exit 1. If you plan to use an out-of-state medical card, call the store first and ask whether it can serve visiting patients. Store details are on each location page, like our New Buffalo dispensary page.
Shopping adult-use? Order ahead online for in-store pickup, or choose curbside and we'll text you when your order is ready. 21+ only. Please consume responsibly.
