An insurance company totals your car when the cost to repair it, plus its salvage value, equals or exceeds a percentage of the vehicle's actual cash value set by state law or by carrier policy. That percentage, called the total-loss threshold, ranges from 60% in Iowa to 100% in a handful of "Total Loss Formula" states.
The short answer
A car is declared a total loss when the insurer determines that repairing it is uneconomical compared to paying you the actual cash value (ACV). Two formulas are used in the United States: the Total Loss Threshold (TLT), set by state statute as a fixed percentage, and the Total Loss Formula (TLF), where repair cost plus salvage value must equal or exceed ACV.
Twenty-three states use a fixed percentage (commonly 70 to 80 percent). The remaining states use the Total Loss Formula or allow the insurer to decide using its own internal threshold, subject to consumer-protection rules.
How insurers calculate it
The carrier orders an appraisal, pulls comparable vehicles sold in your local market over the last 90 days, applies adjustments for mileage and condition, and arrives at the ACV. The body-shop estimate is then compared against that number using your state's rule.
- Total Loss Threshold (TLT) states: repair cost / ACV >= state percentage = total loss.
- Total Loss Formula (TLF) states: repair cost + salvage value >= ACV = total loss.
- Carrier-discretion states: insurer applies internal threshold, typically 70-75%.
State total-loss thresholds (selected)
These percentages are codified by state statute or regulation. Check your state department of insurance for the current rule before negotiating.
- Alabama: 75% TLT
- Arkansas: 70% TLT
- Colorado: 100% TLF
- Florida: 80% TLT (Fla. Stat. 319.30)
- Indiana: 70% TLT
- Iowa: 70% TLT (lowest fixed)
- Louisiana: 75% TLT
- Maryland: 75% TLT
- Michigan: 75% TLF (insurer discretion)
- Nevada: 65% TLT
- New York: 75% TLT
- Oklahoma: 60% TLT (lowest in U.S.)
- Texas: 100% TLF
- Virginia: 75% TLT
- Wisconsin: 70% TLT
📚 Legal & Regulatory References
- Fla. Stat. 319.30 (Florida 80% total-loss threshold and salvage-title triggers).
- NAIC Auto Insurance Database Report and the NAIC Total Loss Settlement model guidance (national reference for ACV practices).
- National Motor Vehicle Title Information System (NMVTIS), 49 U.S.C. 30502, federal salvage-title reporting requirement.
- FTC Used Car Rule, 16 C.F.R. Part 455 (Buyers Guide disclosures).
- State-by-state thresholds compiled from individual state department of insurance bulletins; verify with your state regulator before relying on a specific number.