How to Calculate DUI Cost
What is DUI Cost?
A DUI total cost calculator estimates the full financial impact of a drunk driving conviction, including fines, legal fees, insurance increases, and other consequences. A first-offense DUI typically costs $10,000–$25,000 when all expenses are totaled over several years.
Formula
Total DUI Cost = Fines + Legal Fees + Insurance Increase + DUI School + License Fees + Ignition Interlock + Lost Wages
- F
- Fines and Penalties ($) — Court-imposed fines and surcharges
- LF
- Legal Fees ($) — Attorney fees for DUI defense
- II
- Insurance Increase ($/year) — Additional annual auto insurance premium
- IID
- Ignition Interlock ($/month) — Monthly rental and calibration cost ($70–$150/mo)
Step-by-Step Guide
- 1Add up court fines and penalties ($500–$5,000 for first offense)
- 2Include attorney fees ($2,000–$10,000)
- 3Calculate insurance premium increases over 3–5 years (often 50–300% increase)
- 4Add DUI school, license reinstatement, ignition interlock device, and lost wages
Worked Examples
Input
First DUI in California, BAC 0.10%, no accident
Result
Fines $2,000 + legal $5,000 + insurance increase $8,000 (3yr) + DUI school $600 + misc $2,000 = ~$17,600
Input
Second DUI in Texas
Result
Fines $4,000 + legal $8,000 + insurance $15,000 (5yr) + ignition interlock $3,000 + jail + misc = ~$35,000+
Common Mistakes to Avoid
- ✕Only considering the fine amount and ignoring the massive insurance premium increase
- ✕Not accounting for lost wages from court appearances, jail time, and license suspension
- ✕Forgetting the cost of alternative transportation during license suspension
Frequently Asked Questions
How long does a DUI affect insurance rates?
A DUI typically affects auto insurance for 3–5 years in most states, though some states (like California) look back 10 years. Expect a 50–300% rate increase during this period.
Can a DUI be expunged?
In some states, a first-offense DUI can be expunged after completing all requirements and a waiting period. This varies significantly by state.
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