Yes. Montana bars, liquor stores, tobacco shops and dispensaries can scan IDs to verify age. You may use the scan data only to check age, never sell or share it, and must delete it within 180 days.
Montana sets clear rules for what you do with scanned ID data. Under MCA 16-3-313, you can use it only to check age, never sell or share it, and must delete it within 180 days. And with a civil penalty of up to $1,500 and up to 3 months' suspension for one sale under 21, a scan is cheap insurance.
Montana ID laws at a glance
| Question | Answer |
|---|---|
| Can you scan IDs in Montana? | Yes. Bars, stores, tobacco shops and dispensaries can scan IDs to check age |
| Does a scan protect you? | A scan is your proof of good-faith ID checks, which can lower a penalty |
| What can you keep from a scan? | Use it only to check age, never share it, delete within 180 days |
| Legal drinking age | 21 for alcohol and adult-use cannabis. 21 for tobacco under federal law |
| Who must you card? | Every cannabis customer. Tobacco buyers under 30 (federal rule) |
| Fine for selling to a minor | Up to $1,500 and a suspension of up to 3 months |
Can you scan IDs in Montana?
Yes. Montana businesses can scan physical and digital IDs for age-restricted sales, as long as they follow the state’s data rules. Dispensaries must refuse any buyer not shown by a valid, unexpired ID to be 21 or older. Selling alcohol to anyone under 21 is against the law. That covers bars, stores, tobacco shops and dispensaries, all with a minimum age of 21, and you should card anyone who could be under 21, every cannabis customer, and tobacco buyers under 30.
What you can do with scan data
Under MCA 16-3-313, any business that scans an ID for an age-restricted sale must:
- Use the scan data and metadata only to determine age
- Never sell or transfer it to anyone
- Permanently delete it within 180 days
The rule covers physical and digital government or tribal IDs, and the tobacco law points to it too. For the exact wording, see MCA 16-3-313.
Which IDs are accepted in Montana?
You can accept a Montana or out-of-state driver’s license, a U.S. or foreign passport, a military or Montana tribal ID, or a Montana mobile driver’s license or ID, but not altered IDs, IDs without a photo or birth date, private college IDs, or expired IDs at dispensaries.
Montana mobile IDs have been accepted for alcohol since September 1, 2025. Verify them with a reader app.
Fines for selling to minors in Montana
| Violation | Penalty |
|---|---|
| Selling alcohol to anyone under 21 (license) | Up to $1,500, suspension up to 3 months, or revocation |
| Selling tobacco to a minor (state law) | Notices, then a $500 fee, then suspensions |
| Clerk who sells tobacco to a minor | $25 education fee per violation |
| Adult providing a minor too much alcohol | Civil liability plus criminal penalties |
Investigators run compliance checks. Everyone who sells or serves alcohol must complete state-approved training within 60 days of hire. For the full penalty rules, see MCA 16-4-406 and MCA 16-11-308.
What Montana IDs look like
- Under-21 cards are vertical with a red “UNDER 21 UNTIL” bar below the photo
- Blue for regular licenses, green for ID cards
- Security features include a laser-perforated bitterroot flower, ghost portraits and UV ink
See current card designs in the Department of Justice’s new license and ID card brochure.
This page is general information, not legal advice.
Why Montana Limits What You Keep From a Scan
Montana’s MCA 16-3-313 applies to any business that scans an ID for an age-restricted sale. You may use the data only to check age, you may never sell or share it, and you must delete it within 180 days. Selling alcohol to anyone under 21 can also bring a civil penalty of up to $1,500 and a license suspension of up to 3 months.
How Patronscan Helps Montana Businesses Stay Compliant
Patronscan is purpose-built for the compliance environment Montana businesses work in. Montana requires dispensaries to check every customer’s ID, and any business that scans IDs for age-restricted sales must follow strict limits on the data. With 20 years of experience working alongside operators across North America, Europe, and Australia, Patronscan has the track record to help Montana bars, liquor stores, tobacco shops and dispensaries check every ID with confidence.
Book a DemoUnlimited Forensic Fake ID Detection
Unlike solutions that rely on third-party databases and charge per scan, Patronscan’s forensic detection is built into the software itself, doing the heavy lifting without usage limits or surprise costs. Montana dispensaries must refuse any buyer without a valid ID, so spotting a fake matters.
The Flag Network
Patronscan originated the flag network and has spent years expanding it across North America, Europe, the United Kingdom, and Australia. When a flagged individual walks into any Patronscan-connected venue, staff are immediately alerted, giving businesses a layer of protection that goes far beyond age verification alone. In Montana, review how flags are shared with your legal team, because state law limits sharing scan data.
Scan Data Settings You Control
Patronscan lets you set how long scan data is kept and what is stored, so you can match Montana’s rules on scanned ID data. Montana lets you use scan data only to check age, forbids selling or transferring it, and requires deletion within 180 days.
Unlimited Scans, No Per-Scan Fees
No pay-per-scan model means no bill shock on a busy Friday night when hundreds of guests come through the door. Scan as many IDs as you need, every time. Montana venues can scan every guest on a busy night without extra cost.
An ID Scanner for Montana's 180-Day Data Rule
If you scan IDs in Montana, MCA 16-3-313 says the data may be used only to check age, never sold or shared, and deleted within 180 days. Patronscan is an ID scanner for bars, liquor stores, tobacco shops and cannabis dispensaries, and its retention settings can be configured. Request a demo to see how Patronscan fits your operation, or get a quote today.
Montana ID scanning FAQ
Do I need an ID scanner in Montana?
If you want to catch fakes and show good-faith efforts that can lower a penalty, yes. Patronscan adds forensic fake ID detection beyond the barcode, no per-scan fees, a flag network and a scan log, and it can be set to keep only what Montana allows.
What is the best ID scanner for Montana bars?
Pick one that reads Montana mobile IDs as well as plastic cards, catches fakes beyond the barcode, and lets you delete scan data within 180 days so you stay inside the state’s data rule.
What happens if I sell alcohol to a minor in Montana?
The Department of Revenue can impose a civil penalty of up to $1,500, suspend the license for up to 3 months, or revoke it when the violation puts health and safety at risk. Good-faith prevention efforts can lower the penalty.
What IDs can I accept in Montana?
Any government-issued ID with a photo and date of birth that hasn’t been altered, including a Montana or out-of-state license, a passport, a military ID, a Montana tribal ID or a Montana mobile ID. Private college IDs don’t count.
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