“We Find You 50% at Fault”: How to Dispute a Fault Split
Last reviewed October 10, 2026 by Ali Ahmad, MyAutoTriage editor.
What the adjuster said
"We find you 50% at fault."
Short answer
A fault percentage is the insurer's opinion, not a final ruling. It matters a lot: depending on your state, your share of fault cuts your payout or, at 50% or 51% (or any fault at all in a few states), blocks it. Ask how the percentage was set and send evidence that changes it.
What it usually means
Split decisions are common when there is no independent witness or video, or the drivers' stories conflict. Insurers on both sides may each settle at their own split.
What the rules say
- The NAIC model act lists refusing to pay claims without conducting a reasonable investigation as an unfair claims practice (Model 900, Section 4F), and denials or compromise offers should come with a reasonable explanation (Section 4L).
- Your state's fault rule decides what a split does to your payout. Our state pages list each state's rule with its citation.
- Fault decided by an insurer doesn't bind a court. If the amount is within your state's small claims limit, a judge can decide fault.
The NAIC model act and regulation are templates that most states have adopted in some form, often with different deadlines or wording. Your state's own law and your policy are what apply.
What to say back
Reply in writing (email is fine) so you have a record. Fill in the brackets:
I dispute your decision that I was [percent]% at fault for the accident on [date], claim [claim number]. Please send me the basis for this percentage, including the statements, photos and any police report you relied on. Enclosed is additional evidence: [photos of the damage pattern / witness contact / dashcam / police report]. Please review the liability decision and respond in writing within 14 days.
Frequently asked questions
Does 50/50 fault mean I get half?
In pure comparative and modified (51% bar) states, yes, you recover 50%. In states with a 50% bar, being exactly 50% at fault can block recovery. In the few contributory negligence states, any fault can block it.
Will a fault split raise my insurance rates?
It can, because your insurer may treat a shared-fault accident as partly at fault. How much depends on your insurer and state.