How Insurance Companies Rate Traffic Violations

Ever wonder why your friend's rate barely moved after a speeding ticket while yours jumped 30%? Insurance companies use complex rating algorithms that weigh violations differently. Understanding how they work gives you a strategic advantage when shopping.

How Insurance Pricing Works (Simplified)

Every insurance company uses a proprietary rating algorithm that considers:

• Base rate — Determined by your zip code, age, gender, vehicle, credit
• Surcharges — Added for violations, accidents, lapses in coverage
• Discounts — Subtracted for clean record, bundling, safety features, etc.
• The final calculation — Base × surcharge factors - discounts = your premium

The key insight: surcharge amounts vary dramatically between companies.

Violation Classification Systems

Most carriers classify violations into categories:

Major Violations

• DUI/DWI
• Reckless driving
• Hit and run
• Driving on suspended license
• Fleeing/evading
• Racing

These typically trigger the highest surcharges (50-200%+) and may result in policy cancellation.

Minor Violations

• Speeding (under 15 over)
• Running a red light
• Failure to signal
• Improper lane change
• Rolling stop

Lower surcharges (10-30%), and some carriers have first-minor-violation forgiveness.

Why Rates Differ Between Companies

Several factors explain why Company A charges $200/month while Company B charges $350 for the same driver:

• Risk appetite: Some carriers actively seek high-risk drivers (more competitive pricing); others price them out
• Claims data: A carrier with good DUI driver claims experience will price DUI more favorably
• Surcharge formulas: One carrier might add $50/month for a speeding ticket; another adds $30
• Look-back periods: Some look at 3 years of history; others look at 5
• Decay curves: Some reduce surcharges gradually; others maintain them for the full period

The MVR Check

When a carrier checks your Motor Vehicle Record, they see:

• All convictions within their look-back period
• License suspensions and reinstatements
• SR-22 filings
• Point accumulation
• Any administrative actions (DUI APS, negligent operator)

They do NOT typically see:

• Pending (unconvicted) tickets
• Violations masked by traffic school
• Parking violations
• Warnings

How Carriers Handle Multiple Violations

Multiple violations create compounding surcharges. Most carriers use one of these approaches:

• Additive: Each violation adds its own surcharge (1 ticket = +20%, 2 tickets = +40%)
• Multiplicative: Surcharges multiply (1 ticket = ×1.2, 2 tickets = ×1.2 × 1.2 = ×1.44, or +44%)
• Tiered: You're placed in a risk tier. More violations = higher tier = higher base rate

The multiplicative and tiered approaches explain why rates can seem disproportionately high for drivers with multiple violations.

Recency Matters

Most carriers weight recent violations more heavily than older ones:

• Violation from last 6 months: Full surcharge
• Violation from 1-2 years ago: Reduced surcharge at some carriers
• Violation from 2-3 years ago: Further reduced, or gone at some carriers
• Violation from 3+ years ago: Most carriers no longer surcharge

This is why re-shopping every 6-12 months matters — as your violation ages, more carriers offer competitive rates.

What This Means For You

1. Always compare multiple carriers — Rating differences are enormous
2. Work with an independent agent — They know which carriers are forgiving for specific violation types
3. Re-shop frequently — Your best option changes as violations age
4. Ask about the look-back period — A 3-year look-back carrier is better if your violation is 2.5 years old
5. Understand your profile — A carrier that's cheap for DUI might be expensive for multiple speeding tickets, and vice versa