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Indiana DUI Laws

Indiana DUI Defense

What you're facing, what the deadlines are, and the questions your attorney needs to answer — specific to Indiana (IN) law.

BAC Limit

0.08

Enhanced BAC

0.15

Higher penalties above this

Lookback Period

10 years

Prior offenses count within

First Offense Penalties in Indiana

Jail TimeUp to 60 days (up to 1 year if BAC 0.15+)
FinesUp to $500 (up to $5,000 if BAC 0.15+)
License Suspension90 days – 2 years
Ignition InterlockMay be required

Implied Consent & Test Refusal

Like all 50 states, Indiana has an implied consent law — by driving on Indiana roads, you've already agreed to submit to a chemical test (breath, blood, or urine) if an officer has probable cause to believe you're impaired.

Refusal Penalty

1-year license suspension

Indiana-Specific Detail

Indiana's enhanced BAC threshold of 0.15 dramatically increases the maximum jail time from 60 days to 1 year, and the maximum fine from $500 to $5,000.

Is your Indiana DUI defense on track?

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DUI Defense Playbook — $97

26 questions your DUI attorney hopes you never ask, a case stage roadmap, red flag checklist, and a case progress scorecard. Instant PDF download — calibrated for Indiana DUI defendants.

Get the DUI Playbook — $97Read the Free DUI Guide

Important: This page provides general legal information about Indiana DUI laws as of the date of publication. Laws change frequently. This is not legal advice. Consult a Indiana-licensed attorney for guidance specific to your case.