California DUI Penalty Calculator
Estimate total costs and penalties for a DUI in California
California Calculator
Understand the consequences
Updated for 2025 with real California rates, brackets, and regulations
A DUI in California is one of the most expensive criminal offenses you can face: total costs for a first offense typically reach $10,000-$15,000 including fines, fees, DUI school, license reinstatement, SR-22 insurance, and the mandatory Ignition Interlock Device (IID). Since 2019, California requires IID installation for ALL DUI convictions statewide — even first offenses. Second and third offenses escalate dramatically with mandatory jail time and multi-year license restrictions. This calculator estimates the full financial impact of a California DUI by offense number and BAC level.
Calculate Your CA Tax
Estimated Total Cost
$34,190
Fine + Assessments
$7,740
IID Device
$5,000
Attorney
$10,000
SR-22 Insurance (3yr)
$10,800
DUI School
$650 (3-9 months)
Jail Time
48 hrs - 6 months
License
6 month suspension
IID Required
6 months
Breakdown
Insight
A 1 DUI in California costs approximately $34,190 total. California mandates an IID (Ignition Interlock Device) for 6 months even on first offense since 2019 (statewide). You'll need SR-22 insurance (proof of financial responsibility) for 3 years at ~$3,600/yr above normal rates. Consider a restricted license with IID rather than full suspension — it allows driving to work.
AI Explanation
What This Means
Based on default inputs, the California DUI Penalty Calculator shows a estimated total cost of $34,190. Key figures: Fine + Assessments: $7,740, IID Device: $5,000, Attorney: $10,000, SR-22 Insurance (3yr): $10,800, DUI School: $650 (3-9 months), Jail Time: 48 hrs - 6 months, License: 6 month suspension, IID Required: 6 months.
Key Insights
A 1 DUI in California costs approximately $34,190 total. California mandates an IID (Ignition Interlock Device) for 6 months even on first offense since 2019 (statewide). You'll need SR-22 insurance (proof of financial responsibility) for 3 years at ~$3,600/yr above normal rates. Consider a restricted license with IID rather than full suspension — it allows driving to work.
What You Can Do
Enter your actual figures in the calculator above for a personalized breakdown. Consider consulting a tax professional for comprehensive planning, especially for complex situations involving multiple income sources or deductions.
Keep In Mind
This calculator provides estimates based on 2026 rates. Actual tax liability may vary based on credits, exemptions, and other factors not captured here. This is for educational purposes only and should not be considered tax advice.
How the California DUI Penalty Calculator Works
The California DUI Penalty Calculator uses 2026 tax rates, brackets, and deductions specific to California to provide you with an accurate estimate of your tax obligations. Unlike generic federal-only calculators, this tool accounts for the unique tax structure that California residents face.
Formula
Total DUI Cost = Fines + Penalty Assessments + DUI School + SR-22 (3yr) + IID (mandatory) + License Fees + Attorney + Insurance IncreaseSimply enter your financial details above, and the calculator instantly computes your results using the latest available data. All calculations happen directly in your browser — your personal information is never sent to any server or stored anywhere.
Why Use a California-Specific Calculator?
State-Specific Rates
Uses real 2026 California tax brackets, rates, and thresholds — not generic national averages that miss state-level nuances.
Local Programs & Exemptions
Factors in California-specific programs, exemptions, and deductions that national calculators simply don't account for.
Instant & Private
All calculations run locally in your browser. No account required, no data stored, no waiting for results.
AI-Powered Explanations
Get a plain-English breakdown of your results with actionable insights you can actually use for financial planning.
What's Included
Full Cost Breakdown
Every expense: fines, school, SR-22, IID, attorney, and 3-year insurance impact
Offense Comparison
1st vs 2nd vs 3rd offense penalties, jail time, and license consequences
IID Requirement
Mandatory Ignition Interlock Device costs and duration for all offenses
Frequently Asked Questions
How much does a DUI cost in California?
First offense total: $10,000-$15,000 including: $390 base fine (~$1,800 with assessments), $500-$1,800 DUI school, $125 license reinstatement, $1,500-$3,000/year SR-22 insurance increase (3 years), $500-$1,500 IID, and $3,000-$8,000 attorney fees.
Is an IID required for first DUI in California?
Yes. Since January 2019, California requires all DUI offenders to install an IID (Ignition Interlock Device). First offense: 6 months. Second: 1 year. Third: 2 years. Cost: ~$100 installation + $75-$100/month maintenance.
What is the jail time for DUI in California?
First offense: up to 6 months (usually 48 hours or probation). Second offense (within 10 years): 96 hours to 1 year mandatory. Third offense: 120 days to 1 year mandatory. DUI with injury: 16 months to 16 years (felony).
What is SR-22 insurance in California?
SR-22 is a certificate proving minimum liability insurance, required for 3 years after DUI. It doesn't cost separately, but insurers charge 50-100% higher premiums for DUI drivers. Expect $1,500-$3,000/year extra for 3 years.
Can I get a DUI expunged in California?
Yes. Under PC 1203.4, you can petition for expungement after completing probation (typically 3-5 years). The DUI conviction is dismissed but still counts as a prior for future DUI charges within 10 years.
Important Information for California Residents
Tax laws in California can change annually. This calculator is updated regularly to reflect the latest 2026 rates and regulations, but you should always verify important financial decisions with a qualified California tax professional or CPA.
This tool is designed for informational and educational purposes. While we strive for accuracy using official California Department of Taxation data, the results should be used as estimates for planning purposes only. Your actual tax liability may differ based on credits, special circumstances, and legislative changes that occur after our last update.
For filing deadlines, payment schedules, and official forms, visit the California Department of Taxation and Finance website. If you have complex tax situations involving multiple states, business income, or significant investment gains, professional guidance is recommended.
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