Author: John Mattiacci | Owner Mattiacci Law
Published January 27, 2026
So you got into an accident that wasn’t your fault and assumed the at-fault driver’s insurance would step in and take care of everything.
You expect things to move fairly once it’s clear you weren’t the one who caused the mess, yet here you are chasing updates, leaving voicemails, and staring at emails that never seem to arrive.
It feels a bit like being stuck in traffic with no clue how long you’ll be sitting there.
The good thing is you’re not out of options, not even close.
When the other driver’s insurer won’t pay, there are steps that actually work and ways to push the claim forward without losing your mind.
In this post, I’ll show you exactly what to do if the at fault driver’s insurance won’t pay.
#1. Start With Understanding Why They Won’t Pay
Before you go into battle mode, it helps to understand why an insurance company sometimes stalls or refuses to pay.
They’re businesses and paying claims cuts into their profits, so they look for anything they can question or investigate.
They might say the claim is still “under review” because the adjuster is trying to verify details, or they might be disputing liability because the at-fault driver gave a totally different story.
Sometimes they claim your damages look too high, your medical treatment seems “excessive,” or they simply want more documentation.
And yes, there are moments when they’re using delay tactics hoping you’ll give up or take a low offer.
Also Read: Insurance Says I’m At Fault When I’m Not
Knowing the root of the holdup gives you a little more clarity.
#2. Re-Check The Accident Details & Your Evidence
Grab your folder, and look at everything you’ve collected.
Strong evidence is the backbone of any smooth claim, so make sure you’ve got your police report, plenty of photos or videos from the scene, medical records, and repair estimates.
If you took screenshots of conversations or grabbed witness details, keep those ready too.
Go through everything and make sure it’s complete because missing pieces can slow the entire process.
A lot of people assume their evidence is solid until they realize they forgot something simple like a doctor’s note or a clearer picture of the damage.
Double-checking now saves you a ton of stress later.
#3. Contact The At-Fault Driver’s Insurance Again
Now that you’re confident in your files, reach out to the insurer again.
Don’t go in frustrated, just firm and direct.
Ask for an update on the claim and request a written explanation if they’re delaying things.
Adjusters sometimes get overwhelmed, claims fall behind, and sometimes they just need a little nudge to move forward.
Keep a record of every conversation, phone call, email, or voicemail because that paper trail helps if you need to escalate the situation later.
Insurers tend to take things more seriously when they know you’re keeping track.
And if the adjuster’s responses feel vague or repetitive, ask for a supervisor. You’re allowed to push for progress without feeling guilty about it.
Also Read: Driver Refused To Give Insurance Details
#4. File A Claim With Your Own Insurance
A lot of people don’t realize their own insurance can save them from major headaches in situations like this.
If the other company is stonewalling you, call your insurer and ask what they can do.
Your collision coverage can handle the repairs and get your car back on the road quicker.
Medical payments coverage can help with treatment, and uninsured or underinsured motorist coverage steps in if the at-fault driver’s policy refuses to play along.
Once your insurer pays, they usually go after the at-fault company through something called subrogation, which basically means they fight it out on their end while you move on with your life.
It’s a lot smoother than sitting around waiting for the other company to get its act together.
#5. Dispute The Denial Or Delay
If you’ve received an official denial or the insurer has been dragging their feet for way too long, you can dispute it.
Ask for a copy of the denial letter because it tells you exactly what they’re basing their decision on.
Once you have that, you can challenge any incorrect information or missing facts. Sometimes the adjuster misunderstood something or didn’t include a piece of evidence, and clearing that up can put your claim back on track.
If things still feel off, request a supervisor review.
Insurance companies don’t love having their decisions challenged, but they also know they have to reconsider legitimate concerns.
And if their behavior feels shady, you might be dealing with bad faith, which opens up even more options.
Also Read: What Happens If A Cop Rear Ends You
#6. Gather More Evidence If They’re Claiming “Not Enough Proof”
If the insurer insists your evidence isn’t strong enough, don’t panic. There’s always more you can gather.
You can get additional repair estimates from a trusted shop, or ask your doctor for more detailed medical notes if your injuries are part of the claim.
You can reach out to witnesses and see if they’re willing to write a short statement. You can even get an expert opinion if the damage or medical situation is complex.
The point is that you’re not stuck. Every extra piece of proof strengthens your case and leaves the insurer with fewer excuses to drag things out.
Here are a few things that help close those gaps
- Updated medical reports
- A second or third repair estimate
- Written statements from witnesses
Use what makes sense for your situation and keep it organized so you can send it over quickly when the insurer asks for something new.
#7. File A Complaint With Your State Insurance Department
If the insurance company still refuses to play fair, this is the moment to involve your state’s insurance department.
You don’t need anything dramatic to do this. Just file a complaint explaining the issue and provide the documents you have. State regulators don’t mess around when it comes to consumer complaints, and insurers know that.
Once a complaint is filed, the company is usually required to respond, and that alone often speeds things up.
It creates pressure the insurer can’t ignore and shows you’re not backing down.
#8. Consider Sending A Demand Letter
A demand letter is basically a formal way of saying “I’ve had enough, here’s what I need, and here’s your deadline.”
It doesn’t have to be aggressive, just make it clear and organized. You outline what happened, list your damages, include your supporting documents, and give them a fair amount of time to respond.
Insurance companies treat demand letters seriously because they show you’re willing to escalate things if needed.
Even the possibility of legal action pushes adjusters to look at your claim more closely.
Some people write them on their own, while others prefer having an attorney handle it, but both approaches work depending on your comfort level.
#9. Speak With A Personal Injury Attorney
Speaking to a lawyer is the best option if the at fault driver’s insurance won’t pay.
If the insurer keeps dragging things out or the denial makes no sense, a lawyer can step in and do the heavy lifting. Most personal injury attorneys work on contingency, so they only get paid when you do, making it a low-risk option for you.
Once an attorney is involved, insurers usually shift gears pretty fast because they know they have to follow strict rules and timelines.
They also understand that lawyers won’t tolerate nonsense or delays.
Your case goes into negotiation, arbitration, or even court, you’ve got someone who knows exactly how to push things forward.
What Not To Do While Waiting
Here are a few things that can sabotage your claim while you wait:
- Don’t accept a quick lowball offer just because you’re tired of the delay
- Don’t sign any release forms too early
- Don’t skip your medical appointments or stop treatment halfway through
These mistakes make it easier for the insurer to reduce your payout or blame you for gaps in your claim, so stay consistent and cautious.
Bottom Line
Dealing with an at-fault driver’s insurance that won’t pay is incredibly frustrating, but it’s not the end of the road. You’ve got more power than you think, and once you start taking the right steps, things begin to shift.
You can follow up, dispute, gather more proof, involve your own insurer, file complaints, or even bring in a lawyer.
You’re not stuck waiting forever, and you definitely don’t have to accept an unfair outcome. Keep everything organized, stay persistent, and don’t be afraid to push back a little.
Your claim deserves to be handled properly, and you deserve to move forward without all the hassle.