What happens if you were partly at fault in Missouri?

Nobody hands you a fault percentage the way a referee hands out a penalty. It starts as a proposal, gets argued over, and only rarely lands in front of a jury for a real decision.

Where the first number comes from

An insurance adjuster is usually the one who floats a percentage first, often before your medical records are even complete. That early number tends to favor the company writing the check, not an honest read of the crash. It’s a starting point in a negotiation, nothing more.

What pushes back against it

Evidence moves the number, not tone or persistence. A witness account, dashcam footage, skid marks noted in the crash report, or a more complete timeline of the intersection can all shift a percentage that started out unfavorable. This is where an attorney’s involvement tends to matter most, since arguing a fault split is a different skill than accepting one.

Missouri’s rule, plainly

Missouri runs on pure comparative fault, adopted by the state’s supreme court in 1983. That rule means your own share of blame reduces your recovery, but it never wipes it out entirely, no matter how large that share turns out to be. Missouri’s rule cuts both directions: two drivers who share blame for one wreck can each pursue the other’s insurer for their own reduced share.

Contrast that with the way some states cut a claim off once fault crosses a set line. Missouri simply doesn’t work that way. A driver found mostly at fault can still bring a claim; the total just shrinks to reflect that share.

The police report is a starting document, not a verdict

Officers write a fault determination based on what they can piece together in a short window, often from two drivers giving conflicting versions of the same few seconds. That entry carries weight, but it isn’t the last word. New evidence, a second witness, or a closer look at vehicle damage can all change how a fault question gets read later in a claim.

If your case ends up in front of a jury

Most Missouri claims settle before trial, but the fact that a jury could weigh in shapes how both sides negotiate. A jury hears the same evidence an insurer already has, plus whatever testimony gets added at trial, and decides a percentage on its own. That possibility is part of why insurers rarely dig in on an unreasonable split forever.

Working out what your share actually means

A fault percentage only matters once it’s applied to a real number, and that number comes from the same inputs discussed in the how much is my case worth guide: medical bills, wage loss, and the toll an injury takes on daily life. If an adjuster reaches you before that number takes shape, the insurance adjuster tips guide times what to say and what to hold back until the file is further along.

Being partly at fault changes the math. In Missouri, it doesn’t end the conversation.