What Happens If You Get Caught Drinking Under 21?

Updated October 13, 2026 · 2 min read · 3 sources

Short answer

Underage possession or consumption of alcohol is usually a misdemeanor or civil violation punished with fines, alcohol education, community service and, in many states, a driver's license suspension, even if you were not driving. Driving with almost any alcohol in your system under 21 triggers zero-tolerance laws. First offenders can often get diversion or have the record sealed.

Every state sets 21 as the minimum age to purchase and publicly possess alcohol, a standard encouraged by federal highway funding rules (23 U.S.C. 158). Breaking those laws is common, but it can carry consequences that outlast college.

Common charges

  • Minor in possession (MIP) or underage consumption
  • Purchasing or attempting to purchase alcohol
  • Using a fake or altered ID, which can be more serious than possession itself
  • Open container or public intoxication
  • Underage DUI under zero-tolerance laws

Some states make exceptions, such as consumption in the presence of a parent, for religious purposes, or when calling for medical help (medical amnesty laws).

Typical penalties

  • Fines and court costs
  • Alcohol education or treatment programs
  • Community service
  • Driver's license suspension, which many states impose even if no car was involved
  • Probation in some cases

Zero tolerance for drivers under 21

Federal highway rules pushed every state to adopt zero-tolerance laws that set a blood alcohol limit of 0.02% or lower for drivers under 21 (23 U.S.C. 161). Exceeding it typically means license suspension. At 0.08% or higher, the driver can be charged with regular DUI as well. See first DUI arrest.

Other consequences

  • College disciplinary action, and possible effects on housing or scholarships
  • Background check issues for some jobs
  • Immigration issues for non-citizen students
  • Military enlistment questions

Diversion and sealing

Many courts offer diversion for first-time underage drinking offenses: complete classes and stay out of trouble, and the charge is dismissed. Many states also allow sealing of underage alcohol records. See expungement.

Adults who supply alcohol

Adults who provide alcohol to people under 21 can face criminal charges and, in many states, civil liability if the minor injures someone.

What to do if cited

Do not ignore the citation or court date, and do not try to resolve it by pleading guilty without understanding the license and record consequences. A criminal defense lawyer can often secure diversion. If the person is under 18, see juvenile charges.

Sources

  1. Cornell Law School LII: 23 U.S.C. 158, National minimum drinking age
  2. Cornell Law School LII: 23 U.S.C. 161, Zero tolerance blood alcohol concentration for minors
  3. NHTSA: Drunk driving

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This article is general legal information, not legal advice, and reading it does not create an attorney-client relationship. Laws differ by state and change over time; talk to a licensed attorney in your state about your situation.

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