Car insurance premiums are calculated using a complex formula that weights dozens of risk factors. Understanding which factors matter most — and which you can control — is the first step to reducing your rate.
The 12 Key Factors That Affect Car Insurance Rates
| Factor | Impact on Rates | Controllable? |
|---|---|---|
| Driving record | Very high | Yes |
| Age and experience | Very high | Partially |
| Location (state, ZIP) | Very high | Yes (long-term) |
| Vehicle type and value | High | Yes |
| Credit score | High (most states) | Yes |
| Coverage level and deductibles | High | Yes |
| Annual mileage | Moderate | Yes |
| Gender | Moderate (most states) | No |
| Marital status | Low to moderate | No |
| Claims history | High | Partially |
| Insurance gap | Moderate | Yes |
| Anti-theft and safety features | Low to moderate | Yes |
1. Driving Record: The Biggest Factor
Insurers look at the past 3–5 years of violations and accidents on your Motor Vehicle Record (MVR):
| Violation | Average Rate Increase |
|---|---|
| At-fault accident | +20–50% |
| Speeding ticket (1–15 mph over) | +10–25% |
| Speeding ticket (16–30 mph over) | +20–40% |
| Reckless driving | +50–100% |
| DUI/DWI (first offense) | +70–150% |
| At-fault accident (with injury) | +30–80% |
After 3–5 years, most violations drop off your record.
2. Age and Driving Experience
| Age Group | Relative Premium vs. 35-Year-Old |
|---|---|
| 16–17 | +150–250% |
| 18–19 | +100–200% |
| 20–24 | +40–100% |
| 25–34 | +5–25% |
| 35–55 | Baseline |
| 56–65 | +5–15% |
| 65–75 | +15–30% |
| 75+ | +30–60% |
Teen drivers are by far the most expensive to insure due to their higher accident rates.
3. Location: State and ZIP Code
| State | Avg. Annual Full Coverage Premium (2026) |
|---|---|
| Michigan | $2,800–$4,000 |
| Florida | $2,800–$3,500 |
| New York | $2,400–$3,200 |
| Louisiana | $2,500–$3,500 |
| California | $2,000–$3,000 |
| Texas | $1,800–$2,600 |
| Ohio | $1,100–$1,600 |
| Iowa | $1,000–$1,400 |
| Maine | $900–$1,300 |
Urban ZIP codes cost more than rural ones even within the same state.
4. Vehicle Type: Make, Model, Year
Insurers look at:
- Repair cost — luxury and EV parts cost more
- Safety ratings — IIHS and NHTSA ratings affect injury claim likelihood
- Theft rate — High-theft vehicles (certain pickup trucks and SUVs) cost more to insure
- Engine size — Sports cars and high-performance engines cost more
| Vehicle Category | Relative Collision Premium |
|---|---|
| Economy sedan | Baseline |
| Midsize SUV | +10–20% |
| Full-size pickup | +15–30% |
| Sports car | +30–70% |
| Luxury sedan | +40–80% |
| Electric vehicle | +40–90% |
5. Credit Score (Most States)
| Credit Range | Relative Rate vs. Good Credit |
|---|---|
| Exceptional (800+) | −15–25% |
| Good (740–799) | Baseline |
| Fair (670–739) | +15–30% |
| Poor (580–669) | +40–80% |
| Very poor (below 580) | +80–150% |
States that prohibit credit scoring: California, Hawaii, Massachusetts, Michigan.
6. Coverage Level and Deductibles
| Coverage Change | Average Premium Impact |
|---|---|
| Minimum liability only vs. full coverage | −50–60% |
| $500 to $1,000 collision deductible | −15–25% |
| Adding UM/UIM coverage | +8–15% |
| Adding roadside assistance | +$20–$50/year |
7. Annual Mileage
Drivers who drive less than 7,500 miles/year often qualify for low-mileage discounts. Telematics programs (Progressive Snapshot, State Farm Drive Safe & Save) track actual driving behavior:
| Annual Mileage | Typical Discount |
|---|---|
| Under 5,000 miles | 10–20% |
| 5,000–10,000 miles | 5–15% |
| 10,000–15,000 miles | Baseline |
| Above 15,000 miles | +5–15% |
Common Discounts That Can Lower Your Rate
| Discount | Typical Savings |
|---|---|
| Bundling home/renters + auto | 10–25% |
| Good student (B or better) | 8–15% |
| Safe driver (3+ years clean record) | 10–20% |
| Defensive driving course | 5–10% |
| Anti-theft device | 5–15% |
| New car | 5–10% |
| Military or veteran | 5–15% |
| Loyalty | 5–10% |
| Paperless billing and autopay | 1–5% |
For a step-by-step guide to choosing the right policy based on these factors, see how to choose car insurance. For the state minimum coverage requirements, see minimum car insurance requirements by state. For the top-rated carriers to shop for the best rate, see Geico review and Progressive review.
The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy