What are the DWI laws and penalties in New Jersey?
What happens after a DWI arrest in New JerseyAs of October 20, 2026
- Arrest and chargeChemical test, notice of license action, first court date set.
- First court dateNothing touches your license before conviction; a municipal court judge decides, no jury.
- Court casePlea or trial, then sentencing: fine, program, probation or jail.
- License backSuspension served, interlock if ordered, reinstatement fee paid.
A first DWI in New Jersey is a motor-vehicle (traffic) offense under Title 39, not a crime: you are charged by summons and tried by a municipal court judge with no jury. It never becomes a felony by repetition; indictable crimes arise only when a DWI causes injury or death, or when you drive while suspended for a prior DWI or refusal.
What are the penalties for a first-offense DWI in New Jersey?
A first DWI in New Jersey is a traffic offense, not a crime. Expect a fine of $250 to $400 (or $300 to $500 at BAC 0.10 or higher), a mandatory ignition interlock, the IDRC alcohol program and a possible, non-mandatory jail term.
| Penalty | First offense | Second offense (within 10 years) |
|---|---|---|
| Offense level | Traffic offense, not a crime | Traffic offense, not a crime |
| Jail | Up to 30 days, not mandatory; 12 to 48 hours IDRC | 48 consecutive hours to 90 days, mandatory |
| Fine | $250 to $400; $300 to $500 at 0.10 or higher | $500 to $1,000 |
| License | Forfeited until interlock installed; 3 months at 0.15 or higher | Forfeited 1 to 2 years |
| Ignition interlock | Mandatory, 3 months to 15 months by BAC | During forfeiture, then 2 to 4 years |
| Also | IDRC program, $1,000-a-year surcharge for 3 years, no probation | 30 days community service, IDRC program, same surcharges |
The fine depends on your reading: $250 to $400 for a BAC of 0.08 to less than 0.10 (or impairment by alcohol without a reading), and $300 to $500 for a BAC of 0.10 or higher or for drug impairment (N.J.S.A. 39:4-50). Since February 19, 2024 the court waives the fine entirely if you installed an ignition interlock voluntarily after the arrest and before conviction and held a valid New Jersey license in good standing the whole time. The limit is 0.01 for drivers under 21 and 0.04 in a commercial vehicle.
Every first offender must install an ignition interlock in one vehicle they own, lease or mainly drive: 3 months for a BAC under 0.10 or alcohol impairment, 7 months to 1 year for 0.10 to less than 0.15, and at 0.15 or higher the device stays on during the forfeiture period and for another 12 to 15 months after the license is returned. There is no probation and no community service for a first offense.
On top come the Intoxicated Driver Resource Center (IDRC) screening and education program, a set of fixed fund fees and surcharges, and a 12-hour impound of your car at the arrest under John's Law. The court may also order a supervised hospital or morgue visitation program.
Source: N.J.S.A. 39:4-50(a)(1)(i)-(ii), (b), (f), (i); 39:4-50.17(a); 39:4-50.18(b)-(d); 39:4-50.8; 39:4-50.23; 17:29A-35(b)(2)(b) — a fine of not less than $250 nor more than $400 ... a term of imprisonment of not more than 30 days ... forfeit the right to operate a motor vehicle over the highways of this State until the person installs an ignition interlock device
Do you go to jail for a first DWI in New Jersey?
Jail is possible but not required: a judge can give up to 30 days for a first DWI. What is mandatory is 12 to 48 hours of detainment at an Intoxicated Driver Resource Center, split over two consecutive days.
The 30-day term is in the court's discretion, and the judge may order it served at an IDRC or in an inpatient program instead of a county jail. The IDRC detainment runs at least 6 hours on each of the two days and doubles as the screening and education program.
Skipping or not completing the IDRC program is where the certain jail time sits: it means a mandatory 2 days in county jail and a continued loss of your license.
How long is your license suspended for a DWI in New Jersey?
For most first offenders there is no fixed suspension: the license is forfeited only until you install an ignition interlock, then you drive again. At 0.15 or higher the forfeiture is 3 months; for a drug DWI, 7 months to 1 year.
There is no administrative suspension after the arrest: all license action comes from the municipal court at sentencing, and the court takes your physical license then. Since December 2019 the forfeiture for a BAC of 0.08 to less than 0.15 (or alcohol impairment without a reading) lasts only "until the person installs an ignition interlock device" (N.J.S.A. 39:4-50). The 3-month forfeiture at 0.15 or higher runs from the day the interlock is installed and is cut by one day for every two days a voluntarily installed pre-conviction interlock was in place; there is no credit if the offense caused serious bodily injury, and none at all for a drug DWI.
The MVC prints an interlock notation on your license. The device comes off only if the vendor certifies no more than one failed or missed test in the final 30 days and full maintenance compliance; otherwise the court can extend the period by up to 90 days (N.J.S.A. 39:4-50.18). A driver who claims to own no vehicle loses the license for the full interlock period instead, and the MVC may suspend for one year if an ordered device is never installed.
This interlock-based scheme is written to expire on January 1, 2029 unless the Legislature extends it.
What happens if you refuse a breathalyzer in New Jersey?
Refusing the breath test is a separate traffic offense charged next to the DWI and punished almost the same: license forfeited until an ignition interlock is installed, then 9 to 15 months on the device, a $300 to $500 fine and the IDRC program.
Every driver on a New Jersey road has consented to breath samples (the Alcotest) when an officer has reasonable grounds to suspect DWI (N.J.S.A. 39:4-50.2). The officer must read the MVC standard statement of the consequences, and no sample may be taken by force. The refusal carries the same MVC insurance surcharge as a DWI, but only one surcharge is charged if you are convicted of both from the same incident, and a first refusal forfeiture can run at the same time as the DWI forfeiture.
There is no MVC hearing to request, because nothing happens to your license before conviction. The refusal is contested at trial in municipal court like the DWI (N.J.S.A. 39:4-50.4a): the State must prove by a preponderance of the evidence that the officer had probable cause, that you were arrested and that you refused after the standard statement was read. If any element fails, no conviction can issue. The refusal can still be used against you at the DWI trial, and a plea agreement on the refusal is allowed on the prosecutor's recommendation. A municipal conviction can be appealed to the Superior Court, Law Division for a new trial on the record.
A second refusal means forfeiture for 1 to 2 years after the interlock is installed and a $500 to $1,000 fine; a third or later refusal, 8 years after installation (consecutive to any DWI forfeiture) and a $1,000 fine, with the interlock staying on for 2 to 4 years for repeat offenders.
Source: N.J.S.A. 39:4-50.2(a), (e); 39:4-50.4a(a)(1)-(3); 39:4-50.17(a)(2), (b); 17:29A-35(b)(2)(b) — The municipal court shall order any person who ... refuses to submit ... to forfeit the right to operate a motor vehicle ... until the person installs an ignition interlock device ... a fine of not less than $300 or more than $500 for a first offense
What is the penalty for a second DWI in New Jersey?
A second DWI within 10 years means a mandatory 48 consecutive hours in jail (up to 90 days), a $500 to $1,000 fine, license forfeiture for 1 to 2 years, 30 days of community service and an interlock for 2 to 4 years afterward.
It is still a traffic offense tried by a municipal judge without a jury. The 48 hours cannot be suspended or served on probation, though they may be served in a county jail, workhouse, inpatient rehabilitation or an IDRC facility. The fine is waived if you installed an interlock voluntarily before conviction and kept a valid New Jersey license in good standing. The interlock is required during the whole forfeiture and for 2 to 4 years after the license is returned (N.J.S.A. 39:4-50.17), and the IDRC program costs $100 per day the second time. A refusal conviction from the same incident is sentenced consecutively.
After the 1 to 2 years you must apply to the MVC Chief Administrator for restoration, which is discretionary. Two credits shorten the forfeiture by one day for every two days on the device: one for an interlock installed voluntarily before conviction (since February 19, 2024), and since April 2025 one for anyone who installs an interlock in lieu of serving the forfeiture. Neither applies to a drug DWI or if the offense caused serious bodily injury.
New Jersey has a 10-year step-down, not a washout: if the second offense comes more than 10 years after the first, the court sentences it as a first offense, and a third more than 10 years after the second is sentenced as a second. Out-of-state DWI convictions count as priors unless you prove by clear and convincing evidence that the prior rested solely on a BAC under 0.08.
Source: N.J.S.A. 39:4-50(a)(2) and final paragraph of (a); 39:4-50.17(b); 17:29A-35(b)(2)(b); P.L.2025, c.41 — fine of not less than $500 nor more than $1,000 ... community service for a period of 30 days ... not less than 48 consecutive hours ... or more than 90 days ... not less than one year or more than two years
Source: N.J.S.A. 39:4-50(a), final paragraph of subsection (a) (often cited as 39:4-50(a)(3))
Is a DWI a felony in New Jersey?
No. A DWI is a traffic offense in New Jersey, not a crime, and it never becomes a felony however many times you are convicted. Indictable crimes arise only when a DWI driver injures or kills someone or drives while suspended for a prior DWI.
Even a third or later DWI stays a Title 39 offense, decided by a municipal judge with no jury, as the New Jersey Supreme Court confirmed in 2016. It is punished with a $1,000 fine, a mandatory 180 days in county jail (up to 90 of them in an approved inpatient program), an 8-year license forfeiture and 2 to 4 years of interlock afterward.
Indictable crimes under Title 2C attach only to what happens around the DWI. Assault by auto is a fourth-degree crime for bodily injury and a third-degree crime for serious bodily injury, second degree in a school zone (N.J.S.A. 2C:12-1). Reckless vehicular homicide is a second-degree crime with a mandatory minimum of at least 3 years without parole and a license suspension of 5 years to life, first degree in a school zone (2C:11-5). Driving while suspended for a second or later DWI or refusal, or for a first DWI after already being convicted of driving on that suspension, is a fourth-degree crime with a fixed 180-day minimum without parole (2C:40-26). There is no child-passenger felony; a child in the car is a separate disorderly-persons offense.
Source: N.J.S.A. 39:4-50(a)(3); 2C:12-1(c)(2)-(3); 2C:11-5(b)(1),(3),(4); 2C:40-26
How long does a DWI stay on your record in New Jersey?
Forever. A DWI or refusal conviction stays on your MVC driver history abstract permanently and can never be expunged, sealed or set aside. Because it is a traffic offense, it does not create a criminal record.
The conviction does not show up on a fingerprint-based criminal history check, but it sits in the municipal court records and on the MVC driving abstract, which employers, insurers and licensing boards can obtain. It is reported to other states under the Interstate Driver License Compact and counts as a prior anywhere.
New Jersey's expungement law excludes all Title 39 motor-vehicle offenses (N.J.S.A. 2C:52-28), so the DWI entry never leaves, even if related Title 2C charges from the same incident, such as assault by auto, are expunged under the normal rules. There is also no diversion program for DWI: no pretrial intervention and no conditional discharge.
How much does a DWI lawyer cost in New Jersey?
Law firms report flat fees of about $1,500 to $7,500 for a first-offense New Jersey DWI without an accident, a reported range, not a quote. Fees climb with a refusal charge, a BAC of 0.15 or higher, a drug DWI, an injury or a trial.
The published ranges run from $2,500 to $7,500 at one firm, "start at around $2,500" at another and "$1,500 to $5,000 or more" at a third. Prior convictions, Alcotest and discovery motions and expert witnesses add to it; one firm quotes about $400 for an expert plus about $350 for a report. A drug DWI usually needs a Drug Recognition Expert challenge.
The lawyer is only part of the bill. The court fine is $250 to $500, plus a $125 DWI surcharge, a $100 Alcohol Education, Rehabilitation and Enforcement Fund fee, a $100 Drunk Driving Enforcement Fund surcharge, a $75 Safe Neighborhood Services Fund assessment and court costs. The IDRC program costs $75 per day for a first offender. The MVC bills an insurance surcharge of $1,000 a year for three years, $3,000 in all, and a $100 license restoration fee. Towing and the 12-hour impound at the arrest are charged too.
The ignition interlock has no official price list; vendor and law-firm figures put installation at up to about $100, calibration and monitoring at $60 to $80 and the lease at $50 to $100 a month, and one vendor reports an average of $3.60 a day in New Jersey, roughly $1,300 for 12 months. Insurance rate increases come on top and are not counted here.
Fee range: Marshall, Volet, Walker & Hern law firms — reported figures, not a quote.
New Jersey statutes and official sources
- Offense: N.J.S.A. 39:4-50(a)
- Implied consent / refusal: N.J.S.A. 39:4-50.2 (implied consent); 39:4-50.4a (refusal penalties)
- Ignition interlock: N.J.S.A. 39:4-50.17 (periods); 39:4-50.18 (MVC notation, 30-day compliance before removal)
- MVC insurance surcharge: N.J.S.A. 17:29A-35(b)(2)(b)
- Under-21 BAC: N.J.S.A. 39:4-50.14
- Commercial vehicle BAC: N.J.S.A. 39:3-10.13
- Expungement bar: N.J.S.A. 2C:52-28
- 2024 amendment (voluntary pre-conviction interlock, fine waiver, credit): P.L.2023, c.191 (signed Dec 21, 2023; penalty provisions effective Feb 19, 2024; expire Jan 1, 2029)
- 2025 amendment (general interlock-for-forfeiture credit): P.L.2025, c.41 (approved April 3, 2025, effective immediately, expires Jan 1, 2029)
- NJ Courts - Administrative Directive #04-24, Municipal - DWI - New Law Regarding Ignition Interlock Device (L.2023, c.191)
- NJ Supreme Court - State v. Denelsbeck (2016): DWI is not a criminal offense, no jury trial
- NJ MVC - Surcharges ($1,000 per year for three years for DWI and refusal)
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