Written by Ali Razavi

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Truck accident cases in San Francisco are rarely straightforward. The insurance adjusters know this. They count on injured people not understanding how California’s fault rules actually work — and they use that gap to pay out less than a claim is worth. I’ve seen it happen repeatedly in my practice at Razavi Law Group | Who Hurt You?, where we handle truck accident cases across California.

Whether you were sideswiped on the Bay Bridge approach, rear-ended on I-280, or struck while crossing an intersection in SoMa, the legal questions you face are the same: Who pays? How much? And does it matter if you did something wrong too? This post answers all of those questions for 2026, using California law as it currently stands.

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How Does California Comparative Fault Law Affect a Truck Accident Settlement in San Francisco?

California follows a legal doctrine called pure comparative fault, codified under California Civil Code Section 1431.2. Under this rule, your fault percentage directly reduces your compensation — but it never eliminates your right to recover. If you were 30% responsible for a crash and your total damages are $500,000, you recover $350,000. That’s it. No threshold. No bar.

This matters enormously in truck accident cases. Commercial trucks operate under federal Hours of Service regulations, California DMV commercial licensing requirements, and often company-specific safety protocols. When a crash happens, there’s rarely just one cause. Maybe the truck driver ran a yellow light. Maybe you were slightly over the speed limit. Maybe road conditions on 19th Avenue played a role. Insurers and defense attorneys will look for every reason to assign you a higher fault percentage — because every percentage point they add to your share is money they don’t have to pay.

In my experience, the comparative fault argument hits hardest in three situations. First, when the injured person changed lanes near a commercial truck without a full safety check. Second, when the injured person was also cited by SFPD at the scene. Third, when the injured person made statements at the scene that could be interpreted as an admission — something as simple as “I didn’t see you” can become a problem.

That’s why fault allocation is usually the central fight in any San Francisco truck accident settlement. The final number depends far less on the total damage calculation than on how successfully your attorney pushes back on inflated fault percentages. Under California’s pure comparative fault system, even a plaintiff found 70% at fault can still collect 30% of damages. But I’d rather fight to get your fault percentage down to 5% or 10% than accept what an adjuster assigns on paper.

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What California AB5 Laws Mean for Truck Driver Liability?

Assembly Bill 5, which California passed in 2019, changed how workers — including truck drivers — are classified. Under AB5, most drivers who haul freight on California roads are presumed to be employees of the carriers they work for, not independent contractors, unless the carrier can pass a strict three-part ABC test. The law has been the subject of ongoing federal litigation, but as of 2026, AB5 applies to port drayage drivers and is being enforced in specific contexts while broader application remains contested.

Why does this matter for a truck accident claim? Employer liability. Under a legal doctrine called respondeat superior, an employer can be held financially responsible for the negligent acts of an employee while that employee is working. If a truck driver is legally classified as an employee under AB5, the trucking company is on the hook for that driver’s negligence. That means you’re not just claiming against an individual driver who may have limited assets — you’re claiming against a company that carries commercial auto liability insurance, sometimes with policy limits of $1 million or more.

Carriers have fought AB5 hard because it exposes them to exactly this kind of liability. When I review a new client’s case, one of the first things I look at is the driver’s classification status and the relationship between the driver and the carrier. If a driver was hauling loads exclusively for one company, using that company’s equipment, under that company’s dispatch system, AB5 arguments become very relevant — even if the company called that driver an independent contractor on paper.

This question intersects with California personal injury law at a practical level: more defendants with deeper pockets generally means better recovery for injured victims.

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The Statute of Limitations for a Truck Accident Lawsuit in California

Under California Code of Civil Procedure Section 335.1, you have two years from the date of the accident to file a personal injury lawsuit. Miss that deadline, and the court will almost certainly dismiss your case. Two years sounds like a long time, but truck accident cases consume that window quickly.

Here’s what people don’t always account for: critical evidence disappears fast. Electronic Logging Devices (ELDs) — the onboard computers that track a driver’s hours — often have data retention windows of only 6 to 12 months. Dashcam footage gets overwritten. Trucking companies are not obligated to preserve evidence until they receive a formal legal hold letter. I’ve seen cases where a client waited 14 months to call our office, and the ELD data was already gone.

There are limited exceptions. If the injured person is a minor, the clock doesn’t start running until they turn 18. If the defendant is a government entity — say, a city-operated vehicle — the timeline shrinks dramatically, and you typically have only six months to file an administrative claim under the California Government Claims Act.

For most adults injured by a commercial truck in San Francisco, the practical advice is this: don’t treat the two-year deadline as permission to wait. Start the process within weeks of the accident, not months. The investigation work that supports a strong settlement happens early, and it can’t always be reconstructed later.

You can find further detail on California’s civil procedure timelines through resources like FindLaw’s California statutes section or Justia’s California law pages.

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How Long a Truck Accident Lawsuit Takes to Settle in California?

The honest answer is: anywhere from a few months to several years. The range is that wide because the variables are that significant.

Pre-litigation settlements — cases resolved before a lawsuit is filed — can sometimes close in 4 to 9 months if liability is clear, injuries are well-documented, and the insurance carrier is negotiating in good faith. These tend to be cases where the driver was cited, there’s dashcam footage, and the injured person’s medical treatment is complete or nearly complete.

Cases that go into litigation — where a formal lawsuit is filed — routinely take 18 to 36 months. San Francisco Superior Court has a busy civil docket. Discovery in a commercial trucking case involves depositions of the driver, the dispatcher, the fleet safety manager, and potentially the corporate safety director. Expert witnesses — accident reconstructionists, trucking safety experts, economists calculating future lost income — each add time and cost.

What slows cases down most, in my experience, is when the injury picture is still developing. I strongly advise clients not to settle before they’ve reached Maximum Medical Improvement (MMI) — the point where their doctors can state with confidence what the long-term damage looks like. Settling before MMI means accepting a number before you know the full cost of what happened to you. Insurance companies will happily rush that process along. A good attorney won’t let them.

Cases involving catastrophic injuries — spinal cord damage, traumatic brain injury, amputation — almost always go deeper into litigation, sometimes all the way to trial. The higher the damages, the harder carriers fight.

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What the Average Settlement for a Truck Accident Case Looks Like in California?

No honest attorney will give you a meaningful average settlement figure, and you should be skeptical of any firm that does. The range is enormous — from low five figures for minor soft tissue injuries to seven figures for serious permanent injuries. What actually drives the number is specific to your case.

That said, here are the factors that consistently separate high-value truck accident settlements from low ones in California:

Severity and permanence of injury. A fractured lumbar vertebra that requires fusion surgery and leaves the victim with chronic pain will settle for far more than a whiplash injury that resolves in six weeks. Future medical expenses, future lost income, and non-economic damages like pain and suffering all scale with the severity of the harm.

Policy limits and available insurance. Federal regulations require interstate commercial trucks to carry at minimum $750,000 in liability coverage, and many carriers carry $1 million or more. Some large carriers are self-insured up to $5 million. The defendant’s coverage capacity sets a ceiling on what’s collectable without additional litigation.

Strength of liability evidence. Clear fault — driver was hours-of-service compliant (or not), dashcam shows the truck crossing the center line, driver tested positive for amphetamines — produces better settlements. Cases where liability is disputed settle for less, and more of that amount gets eaten up in litigation costs.

Your comparative fault percentage. As discussed above, every point of fault attributed to you reduces the recovery. A client with $1 million in damages who is found 20% at fault nets $800,000. That same client found 40% at fault nets $600,000. The fight over fault percentages is where real money changes hands.

I’ve handled cases on both ends of this spectrum. What I can tell you is that the cases where clients received the best outcomes were the ones where they got legal help early, preserved the evidence, and didn’t accept the first number an adjuster offered.

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Can You File a Truck Accident Claim If You Were Partially at Fault in California?

Yes. California’s pure comparative fault rule means partial fault does not bar your claim. You can be 1% at fault or 99% at fault and still have a legal right to recover damages proportional to the other party’s responsibility.

This is worth stating clearly because insurance adjusters regularly imply otherwise. It’s a common tactic — suggest to an injured person that since they were “part of the problem,” their claim won’t go anywhere. That’s not how California law works. The American Bar Association and legal academics have documented how pure comparative fault states like California produce different litigation outcomes than contributory negligence states, precisely because partial fault doesn’t eliminate recovery.

What partial fault does do is require you to be prepared to defend your own conduct. If you were distracted, speeding, or failed to signal, the defense will build a case around that. Your attorney builds a counter-case — evidence of what the truck driver did wrong, expert testimony on how that conduct was the primary cause of the collision, data from the truck’s black box showing speed, braking, and steering inputs in the seconds before impact.

In San Francisco specifically, I’ve seen cases where clients were assigned fault for things like merging without adequate space on the 101 corridor or failing to yield at a Caltrain crossing intersection. In each case, the question isn’t whether you made a mistake — it’s what percentage of the overall fault is fairly yours versus the truck driver’s, the carrier’s, or even the municipality’s if road conditions contributed.

If you have any doubt about whether your partial fault makes a claim worthwhile, contact us for a direct conversation. I’d rather spend 30 minutes going through your facts than have you walk away from a valid claim.

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What to Do in the Weeks After a San Francisco Truck Accident?

The steps you take in the first few weeks shape everything that follows. Here’s what actually matters:

Get your medical records organized from day one. Every visit, every imaging order, every prescription. Gaps in treatment are used against you — insurers argue that if you weren’t seeing a doctor, you weren’t really hurt.

Send a preservation demand letter immediately — or have your attorney do it. This puts the trucking company on formal legal notice that litigation is anticipated and that they must preserve all data including ELD logs, GPS data, maintenance records, pre-trip inspection reports, and any footage from the vehicle.

Don’t give a recorded statement to the carrier’s insurance company without talking to an attorney first. You’re not required to. Anything you say will be analyzed for statements that raise your fault percentage.

Document your own losses. Keep a journal of pain levels, missed work days, things you can no longer do. Non-economic damages are hard to quantify, and contemporaneous documentation helps.

The Razavi Law Group | Who Hurt You? team handles truck accident cases throughout California, including San Francisco, the Bay Area, and cities like Santa Ana where we also have established truck accident legal representation. Our work on these cases draws on the same principles that inform how we approach car accident claims and other California personal injury matters.

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Talk to a Truck Accident Attorney About Your Specific Case

Every truck accident case in San Francisco involves a different combination of facts, defendants, insurance coverage, and injury profile. The legal framework — comparative fault, AB5, statutes of limitations — matters, but how those rules apply to your situation requires a direct analysis of your case.

If you were injured in a commercial truck crash in San Francisco, reach out before evidence starts to disappear. Visit our San Francisco office at 71 Stevenson St Suite 400, San Francisco, CA 94105, United States, or call us directly at (415)-384-5025. You can also schedule a consultation online — we offer free case evaluations and work on a contingency basis, meaning you pay nothing unless we recover for you.

Razavi Law Group | Who Hurt You? is ready to look at what happened, tell you honestly what your case is worth, and fight for every dollar California law entitles you to.

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Written by Ali Razavi. Ali Razavi is a California personal injury attorney and founder of Razavi Law Group | Who Hurt You?, representing injured clients in truck accident, car accident, and serious injury cases throughout California. Read more about the author.