How Much Jail Time for a Second DUI in Arizona? ARS 28-1381

How Much Jail Time Do You Get for a Second DUI in Arizona?

For a second standard DUI within 84 months, the statutory minimum is 90 days in jail, 30 of them consecutive, and the judge may suspend all but those 30 days if you complete court-ordered alcohol screening, education, or treatment. That is A.R.S. § 28-1381, subsections K and L. But “second DUI” is not one sentence in Arizona; it is a matrix, because the current charge’s BAC tier sets the floor and the prior triggers it:

• Second standard DUI (impaired to the slightest degree, .08 or more, or drug DUI): 90 days, 30 consecutive, suspendable to 30 with treatment.
• Extreme DUI (.15 to .199) with a prior under A.R.S. § 28-1382(E): 120 days, 60 consecutive, and no reduction provision.
• Super extreme DUI (.20 or more) with a prior: 180 days, 90 consecutive, and no reduction provision.

The prior can be any conviction under 28-1381, 28-1382, or 28-1383, or an out-of-state offense that would violate one of those sections if committed here, so a prior extreme DUI counts against a current standard DUI and vice versa. All three second-offense sentences share the same rule that makes them different from first offenses: no probation and no suspension of sentence unless the entire sentence has been served, except for the specific 30-day treatment suspension in 28-1381(L).

How the 84-Month Window Actually Works

Seven years, measured from offense date to offense date, not conviction date to conviction date. A.R.S. § 28-1381(M) and A.R.S. § 28-1382(F) both say the dates of commission control “irrespective of the sequence in which the offenses were committed,” which produces two results people do not expect. First, a DUI committed six years and eleven months after the earlier offense is a second offense even if the first conviction was entered years later. Second, A.R.S. § 28-1387(A) provides that a conviction may enhance another “irrespective of the dates on which the offenses occurred within the eighty-four month provision,” and a juvenile adjudication counts as a conviction.

The State must allege the prior, and it must do so at least 20 days before trial (or later only if it hands over the prior-conviction records when it files). That allegation is a litigable event. Defense attorneys commonly see priors that fall outside the window when the offense dates are checked, out-of-state convictions whose elements do not match an Arizona DUI, and old pleas entered without counsel or a valid waiver. Defeating the allegation returns the case to first-offense sentencing: 10 days suspended to 1, or 30 suspended to 9, instead of 90, 120, or 180.

What the 30 (or 60, or 90) Consecutive Days Look Like

• Work release after 48 hours. A.R.S. § 28-1387(C) applies to sentences under 28-1381(K) and 28-1382(E): after 48 consecutive hours in jail and confirmation of employment or enrollment, the court must allow work or school release up to 12 hours a day, 6 days a week, absent good cause on the record.
• Home detention after 20 percent. Under A.R.S. § 11-459 and A.R.S. § 9-499.07, a second-offense defendant may be placed on electronically monitored home detention or continuous alcohol monitoring after serving at least 20 percent of the initial term in custody, subject to daily testing, a treatment program, and program eligibility rules. A judge can exclude any defendant from the program at sentencing.
• The treatment suspension. On a second standard DUI only, 28-1381(L) lets the judge suspend all but 30 of the 90 days if you complete screening, education, or treatment; failure to complete it brings an order to show cause and the remaining 60 days back.

In Maricopa County, defense attorneys commonly see second-offense standard DUI defendants who are employed and enrolled in treatment early serve the consecutive portion largely on work release, with home detention or monitoring completing the balance where the court permits it. Those outcomes are built, not granted: the sentencing record, the release-conditions record while the case was pending, and whether the interlock is already installed all bear on what the judge allows. Our second-DUI overview covers the court process and the MVD side; this article is about the days.

Beyond the Jail: Revocation, Interlock, Probation

A second DUI conviction revokes your driving privilege for one year under 28-1381(K)(4) or 28-1382(E)(5); MVD will not simply reinstate at the end of the year without proof of financial responsibility and completion of screening under A.R.S. § 28-3319(A) and (C). The interlock runs 12 months for a second standard or extreme DUI and 24 months where the current offense is super extreme (28-3319(D)). A special ignition interlock restricted license may be available during the revocation; our restricted-license guide explains the timing. Probation on a 28-1381 or 28-1382 conviction can run up to five years under A.R.S. § 13-902(B), and 28-1387(F) makes supervised probation available on a second offense, which is how the court keeps jurisdiction over the treatment and interlock conditions.

How Second-DUI Jail Time Gets Reduced

• Defeat the prior. Offense-date math, out-of-state equivalence, and the validity of the earlier plea are the highest-leverage issues in a second-offense case, because they control whether the floor is 1 day or 30.
• Move the tier. A super extreme count with a prior (180 days) that drops to extreme (120) or standard (90, suspendable to 30) on a BAC challenge or a plea changes months of exposure. See challenging the blood test.
• Suppress the evidence. An unlawful stop or a defective blood-draw warrant ends the current charge, and with it the enhancement. See our top DUI defenses.
• Build the sentencing record. Employment verification, early screening and treatment, and an installed interlock are what convert consecutive days into work release and home detention.

How Tamou Law Group Defends Second DUI Cases

We investigate the prior before anything else, because it is the difference between first-offense and second-offense sentencing, and it is an allegation the State must prove. We test the current BAC and the stop in parallel, and where the case resolves by plea we negotiate the tier that controls the floor. At sentencing, we present the employment, treatment, and interlock record that moves consecutive days onto work release and home detention. Members of the National College for DUI Defense, we handle second-offense cases in Scottsdale, Phoenix, and every Maricopa County court.

Related guides: second DUI defense in Phoenix, what happens on a second DUI in Arizona, jail time for an extreme DUI, and our Arizona DUI charges hub. Call 623-321-4699, 24/7.