How Missouri Comparative Fault Law Affects Your Car Accident Claim

How Missouri Comparative Fault Law Affects Your Car Accident Claim

If you've been in a car accident in Missouri, you might be wondering: "What if I was partly at fault?" It's one of the most common questions we hear, and the answer could significantly affect how much compensation you receive.

Missouri follows a legal doctrine called pure comparative fault — and understanding how it works is essential to protecting your rights after a crash.

What Is Comparative Fault?

Comparative fault is a legal principle that divides responsibility for an accident between all parties involved. Instead of saying one person is 100% at fault, the court looks at everyone's actions and assigns each party a percentage of fault.

Each state handles this differently. Some states use "contributory negligence" (if you're even 1% at fault, you get nothing). Others use "modified comparative fault" (you can recover only if you're less than 50% or 51% at fault, depending on the state).

Missouri uses pure comparative fault — and that's good news for injury victims.

How Missouri's Pure Comparative Fault Rule Works

Under Missouri's pure comparative fault system, you can recover damages regardless of your percentage of fault. Even if you were 99% at fault, you could technically still recover 1% of your damages.

Here's how it plays out in practice:

Example 1: Rear-End Collision with Contributory Negligence

You're driving on I-64 in St. Louis when traffic slows. You brake in time, but the driver behind you doesn't — they rear-end your car. However, your brake light was out.

The court might find:

• Rear driver: 80% at fault (failed to maintain safe following distance)
• You: 20% at fault (broken brake light)

If your total damages are $50,000, you'd recover $40,000 (80% of $50,000).

Example 2: Left-Turn Accident

You're making a left turn in St. Charles when an oncoming vehicle hits you. The other driver was speeding, but you failed to yield properly.

The court might find:

• You: 60% at fault (failed to yield)
• Other driver: 40% at fault (speeding)

If your damages are $100,000, you'd recover $40,000 (40% of $100,000).

Why Comparative Fault Matters for Your Claim

Insurance Adjusters Will Use It Against You

Insurance companies know Missouri's comparative fault rule — and they use it to their advantage. An adjuster might try to argue that you were significantly at fault, even when the evidence doesn't support it. Why? Because every percentage point of fault they can assign to you reduces your payout.

Common tactics include:

• Twisting your statements at the scene into admissions of fault
• Arguing that your injuries were pre-existing
• Claiming you failed to mitigate your damages
• Pointing to traffic violations that may not have actually caused the accident

The Stakes Are Higher Than You Think

Let's say your damages total $200,000 (medical bills, lost wages, pain and suffering). If the insurance company can shift just 10% more fault onto you — from 20% to 30% — that's $20,000 less in your pocket. Small shifts in fault percentage have massive financial consequences.

Common Situations Where Comparative Fault Comes Up

Distracted Driving

If you were checking your phone when the accident happened, the other side will argue you were at least partially at fault — even if the other driver ran a red light.

Failure to Use a Seatbelt

Missouri law doesn't allow the defense to reduce your damages simply for not wearing a seatbelt. However, they may try to argue that your injuries would have been less severe if you had been wearing one.

Speeding

Even if the other driver caused the accident, your speeding could be used to assign partial fault to you.

Driving Without Headlights at Night

If you were driving without headlights after dark, even on a well-lit St. Louis street, the other side may argue that you contributed to the accident.

How to Protect Your Claim Under Comparative Fault

1. Don't Admit Fault at the Scene

Never say "I'm sorry" or "I didn't see you" at the accident scene. These statements can be used to assign fault to you, even if the other driver was primarily responsible.

2. Document Everything

Photos, witness statements, police reports — the more evidence you preserve, the harder it is for the insurance company to shift fault onto you.

3. Be Careful What You Post on Social Media

A photo of you at a barbecue three days after the accident can be used to argue your injuries aren't serious. Set your accounts to private and don't post about the accident.

4. Get Medical Treatment Immediately

Gaps in treatment give insurance companies ammunition to argue your injuries aren't real or weren't caused by the accident.

5. Work With an Attorney Who Understands Missouri Fault Law

An experienced Missouri car accident lawyer knows how to counter comparative fault arguments and present evidence that minimizes your share of fault — maximizing your recovery.

The Bottom Line

Missouri's pure comparative fault system means you can recover compensation even if you were partly at fault. But the insurance company will fight to maximize your percentage of fault and minimize your payout. Don't face them alone.

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Call 314-721-3040 for a free consultation.

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