What Happens If the Other Driver Is At Fault?
In a Nutshell: When the other driver is at fault, their liability insurance pays for your vehicle repairs, medical bills, and other damages. You file a "third-party claim" with their insurance company. The process is faster if fault is clear, but can take weeks if fault is disputed. You can also file with your own insurance and let them subrogate.
When the Other Driver Is At Fault
| Your Damage | Who Pays | How It Works |
|---|---|---|
| Vehicle repairs | At-fault driver's property damage liability | File third-party claim with their insurer |
| Medical bills | At-fault driver's bodily injury liability | Submit medical bills to their adjuster |
| Lost wages | At-fault driver's BI liability | Provide proof of income |
| Rental car | At-fault driver's PD liability | Their insurance pays for reasonable rental |
| Pain and suffering | At-fault driver's BI liability | Negotiated as part of injury claim |
Third-Party Claim Process
| Step | What Happens | Timeline |
|---|---|---|
| 1 | Collect the other driver's insurance info | At the scene |
| 2 | File a claim with their insurer | Day 0–1 |
| 3 | Claim assigned to adjuster | Day 1–3 |
| 4 | Vehicle inspection/estimate | Day 3–7 |
| 5 | Fault determination | Day 5–14 |
| 6 | Repair authorization | Day 7–14 |
| 7 | Rental car arranged | Day 7–14 |
| 8 | Settlement offer (if injury) | Day 14–60 |
Filing with Your Own Insurer Instead (Subrogation)
| Your Coverage | Your Insurer Pays | Then Subrogates Against |
|---|---|---|
| Collision | Repairs minus deductible | Other driver's insurer for full amount |
| MedPay/PIP | Medical bills up to limit | Other driver's BI liability |
| Rental (if you have it) | Rental costs | Other driver's PD liability |
Filing with your own insurer is faster — your insurer pays right away and then fights the other company for reimbursement. You just need to pay your deductible upfront, which you'll get back when subrogation is successful.
When Fault Is Disputed
| Situation | What Happens |
|---|---|
| Both drivers claim they're right | Insurers investigate and negotiate |
| No witnesses | Often split fault (50/50) |
| Police report assigns fault | Usually accepted by both insurers |
| Dash cam footage available | Clear evidence — speeds up everything |
| One driver has strong evidence | That driver's claim gets paid faster |
Your Rights After an At-Fault Accident
| Right | Details |
|---|---|
| Choose your own repair shop | Insurer can't force you to use theirs |
| Rent a comparable vehicle | At-fault insurer pays for reasonable rental |
| Full value of repairs | Including OEM parts (varies by policy) |
| Diminished value claim | In most states, claim residual value loss |
| Fair settlement for injuries | Includes medical, lost wages, pain/suffering |
Settlement Negotiation Tips
- Don't accept the first offer — Initial offers are often low
- Document everything — Medical bills, lost income, pain diary
- Get a lawyer for serious injuries — Over $10,000 in medical bills
- Don't sign a release until treatment is complete — You can't reopen a settled claim
- Understand the statute of limitations — 2–4 years depending on state
Key Takeaways
- At-fault driver's liability insurance pays for your damages
- File a third-party claim with their insurer; or use your own and subrogate
- Fault disputes slow things down — dash cams help
- You have the right to choose your own repair shop
- Pain and suffering compensation is negotiable
- Don't sign a final settlement until all medical treatment is complete
- Statute of limitations varies by state (typically 2–4 years)
Last updated: July 2026
Disclaimer: This article provides general information about claims when another driver is at fault. State laws and insurance processes vary. Consult with an attorney for advice specific to your situation.