Updated July 2026
What Is Full Coverage Car Insurance Insurance?
Full coverage combines three distinct coverage types into one policy: liability insurance to pay for damage you cause to others, collision coverage to repair your vehicle after an accident regardless of fault, and comprehensive coverage to repair damage from non-collision events like theft, hail, or vandalism. The term exists because carriers bundle these three types frequently, but no standardized full coverage product exists across the industry. One carrier's full coverage quote may include rental reimbursement and roadside assistance while another's does not.
- You merge into another vehicle on I-55 in Chicago. The other driver has $9,000 in vehicle damage and $15,000 in medical bills. Your liability coverage pays the other driver's $24,000 in damages up to your policy limits. Your collision coverage pays to repair your own vehicle minus your deductible, typically $500 to $1,000. Without collision, you pay out of pocket to fix your car.
- A severe hailstorm in Naperville causes $4,200 in dents and broken glass across your vehicle. Comprehensive coverage pays the repair cost minus your deductible. Liability and collision do not apply because no collision occurred and you caused no damage to another party. Without comprehensive, you pay the full $4,200.
- You're hit by another driver who runs a red light in Springfield. Your vehicle is totaled. The at-fault driver's liability insurance pays your vehicle's actual cash value, but they carry only Illinois minimum limits of $25,000 and your car is worth $18,000. Your collision coverage pays the $18,000 minus your deductible even if the other driver is uninsured or underinsured. Without collision, you rely entirely on the at-fault driver's coverage.
Who Needs Full Coverage Car Insurance Insurance?
Full coverage makes financial sense if your vehicle is worth more than $4,000 or if you cannot afford to replace it out of pocket after a total loss. Drivers financing or leasing a vehicle must carry it because lenders require collision and comprehensive to protect their interest in the vehicle. If you live in an area with high rates of vehicle theft, hail, or uninsured drivers, comprehensive and collision provide financial protection liability-only policies do not.
Calculate your vehicle's actual cash value using current market listings for your make, model, and mileage. Multiply your annual collision and comprehensive premium by three years. If that total exceeds your vehicle's value and you can self-fund a replacement, dropping full coverage and keeping liability-only is financially rational. If the vehicle is financed, leased, or worth more than two years of premiums, keep full coverage.
How Much Does Full Coverage Car Insurance Insurance Cost?
Full coverage in Illinois typically adds $85 to $180 per month compared to liability-only policies, or $1,020 to $2,160 annually, depending on vehicle value and deductible selection.
- Vehicle value directly affects comprehensive and collision premiums — a $45,000 vehicle costs significantly more to insure fully than a $12,000 vehicle because potential claim payouts are higher.
- Deductible choice changes monthly cost — selecting a $1,000 deductible instead of $500 can reduce premiums by 15 to 25 percent but increases out-of-pocket cost per claim.
- Driving record impacts all three coverage types — one at-fault accident in the past three years can raise full coverage premiums by 30 to 50 percent in Illinois.
- Location within Illinois affects theft and weather risk — comprehensive coverage costs more in Cook County due to higher vehicle theft rates than in rural counties.
- Credit-based insurance score influences pricing in Illinois — carriers use credit history as a rating factor, and lower scores increase full coverage premiums more than liability-only premiums.