Split limits vs. a combined single limit: how each pays when several people are hurt
Worked scenarios that show which format pays more and how to compare them fairly
Safety Behind the Wheel Foundation built this guide from National Highway Traffic Safety Administration (NHTSA) crash and cost data, consumer guidance from the National Association of Insurance Commissioners (NAIC) and the Texas Department of Insurance, the financial responsibility laws of Florida, New York and Oregon, and federal insurance rules for motor carriers. Every source is listed at the end.
Why the shape of your limit matters
Many crashes hurt more than one person. In 2023, an estimated 2.44 million people were injured in traffic crashes nationwide, while police reported about 1.7 million crashes with injuries [1]. That same year, 40,901 people died in 37,654 fatal crashes, so some crashes took more than one life [1]. NHTSA’s early estimate for 2024 is 39,345 deaths [2].
Serious injuries are costly. In a federal study of 2019 crashes, the average economic cost for each person with a level 3 injury was $280,726 [3]. A level 4 injury averaged $675,727, and a level 5 injury averaged $979,328 [3]. The study rates injuries on a 6 point scale, from 1 (minor) to 6 (maximal), and uses 2019 dollars [3].
These are costs to society, not insurance claims. Still, they show how fast medical care, lost wages and other losses add up. The same study found private insurers paid about 54 percent of crash costs, while crash victims paid about 23 percent [3].
That is the family protection link. When liability coverage runs out, injured people and their families may carry the rest. Your liability limit decides how much help reaches them if you cause a crash. Its shape decides how that help gets divided.
A quick refresher on split limits
Liability coverage pays others when you are at fault. Bodily injury liability covers people you hurt. Property damage liability covers things you damage, like cars, fences or poles [4].
Split limits show three numbers. Texas, for example, requires at least 30/60/25 [5]. That means $30,000 for each injured person, $60,000 total for all injuries in one accident, and $25,000 for property damage [5]. State laws spell out the per person cap inside the per accident cap. Florida, New York and Oregon all limit the two or more person amount “subject to” the one person limit [6, 7, 8]. A companion article explains how to read these numbers in more detail.
What a combined single limit is
A combined single limit, often shortened to CSL, is one dollar amount. It covers all bodily injury and property damage you cause in one accident. There is no separate cap for each person and no separate cap for property.
Florida law shows how the two formats line up. In one rule for businesses that prove financial responsibility with a cash deposit, it pairs 10/20/10 split limits with a $30,000 combined single limit [9]. It also pairs 125/250/50 with a $300,000 combined single limit [9]. In both cases, the single limit equals the per accident injury limit plus the property limit.
You may also run into single limits on the road. Federal rules set one minimum amount for many trucks. For hire interstate carriers hauling nonhazardous freight in vehicles rated at 10,001 pounds or more need at least $750,000 [10]. That amount covers “public liability,” which the rules define as bodily injury or property damage, including environmental restoration after a spill [11]. Some hazardous loads require $1,000,000 or $5,000,000 [10]. If such a truck causes a crash, everyone with a claim may be drawing on one amount.
Side by side: how the two structures work
Comparison compiled by Safety Behind the Wheel Foundation
Split limits and a combined single limit side by side
| Feature | Split limits | Combined single limit |
|---|---|---|
| How it is written | Three numbers, such as 100/300/100 | One number, such as $300,000 |
| Cap per injured person | Yes | No |
| Separate property damage cap | Yes | No, shares the pool |
| One badly hurt person | Capped at per person amount | Can use the whole pool |
| Many people hurt | Shared up to the per accident amount | Shared up to the full amount |
| Large property loss | Capped at the property amount | Can use the whole pool |
Neither design is better in every collision. The right choice depends on the total dollars each option gives you and on the kinds of crashes you worry about.
Four accident scenarios, worked through
The examples below are made up illustrations, not real cases. They assume you caused the accident and that each claim is valid. They ignore legal costs, deductibles and other coverage.
Suppose you are comparing two quotes:
- Policy A: split limits of 100/300/100
- Policy B: a $300,000 combined single limit
Scenario 1: One person is badly hurt
You rear end a car. The driver suffers injuries worth $250,000. The car needs $20,000 in repairs.
Policy A pays $100,000 for the injured driver, the per person cap. It pays $20,000 for the car. That leaves $150,000 unpaid. Policy B pays the full $270,000.
Scenario 2: A family of three is hurt
You run a red light and hit a minivan. Three people each have $100,000 in injury losses. The van needs $30,000 in repairs.
Policy A pays $100,000 to each person, which uses the full $300,000 injury limit. It also pays $30,000 for the van. Nothing is left unpaid. Policy B pays $300,000 total and leaves $30,000 unpaid.
Scenario 3: A chain reaction collision
You cause a pileup on a busy road. Five people each have $80,000 in injury losses. Damage to four vehicles and a guardrail totals $150,000.
Policy A pays $300,000 for injuries and $100,000 for property. That is $400,000, with $150,000 unpaid. Policy B pays $300,000 and leaves $250,000 unpaid. The injured people and the property owners all compete for that one pool.
Scenario 4: Heavy property damage
You slide into a loaded work truck, which then hits a storefront. One person has $60,000 in injury losses. Property damage totals $180,000.
Policy A pays the $60,000 injury claim but only $100,000 of the property loss. That leaves $80,000 unpaid. Policy B pays the full $240,000.
Comparison compiled by Safety Behind the Wheel Foundation
Four scenarios under each policy
| Scenario | Policy A: 100/300/100 | Policy B: $300,000 single limit |
|---|---|---|
| 1. One badly hurt person | Pays $120,000; $150,000 unpaid | Pays $270,000; nothing unpaid |
| 2. Three people hurt | Pays $330,000; nothing unpaid | Pays $300,000; $30,000 unpaid |
| 3. Chain reaction collision | Pays $400,000; $150,000 unpaid | Pays $300,000; $250,000 unpaid |
| 4. Heavy property damage | Pays $160,000; $80,000 unpaid | Pays $240,000; nothing unpaid |
Notice the pattern. The single limit did best when the damage fell on one person or one type of loss. The split policy did best when many people were hurt, because its pieces add up to more money.
Four tradeoffs to weigh
Look past the headline number to these four tradeoffs.
The per person ceiling
Under split limits, one person can never collect more than the per person amount from your policy. That is true even when the per accident pot has room left. Life changing injuries are where this ceiling bites hardest.
The shared pool
Under a single limit, every claim draws from one pool. A large property claim can shrink what is left for people who were hurt. How the money gets divided when claims exceed the limit depends on the facts and on state law. That is a question for a lawyer, not a guess.
Comparing like with like
A $300,000 single limit and a 100/300/100 split policy are not the same size. The split policy can pay up to $400,000 in one accident, $300,000 for injuries plus $100,000 for property. To compare fairly, add the per accident injury limit to the property limit. Florida’s law lines up the two formats the same way [9].
A single limit at least equal to that sum will pay at least as much in total, in every crash. Ask your insurer to quote both options at matching totals.
The people who ride with you
Think about who rides in your car and who shares the road with you. A carpool, a school run or a team trip raises the chance that one crash hurts several people. In those crashes, the per accident total matters as much as the per person number.
What state law requires and where single limits fit
Each state sets its own minimum amounts of liability coverage [12]. As of October 2026, the state laws reviewed for this article write those minimums as split limits:
- Florida sets proof of financial responsibility at $10,000 per person, $20,000 per accident for injuries, and $10,000 for property [6].
- New York sets $25,000 per person for injury and $50,000 per person for death, with $50,000 and $100,000 per accident, plus $10,000 for property [7].
- Oregon requires $25,000 per person, $50,000 per accident for injuries, and $20,000 for property [8].
- Texas requires 30/60/25 [5].
New York’s law shows that a state can add extra layers, with separate amounts for injury and death [7]. Florida’s law, as noted above, also names combined single limits in one rule about cash deposits [9].
If your policy uses a single limit, confirm that it meets your state’s rules. Ask your insurer, or call your state insurance department. Keep in mind that minimums are a floor, not a target. The NAIC warns that state minimums will not fully protect a driver who causes a serious crash [12]. Texas regulators note that minimum limits can fall short in a multivehicle crash or when another car is totaled, and the at fault driver may owe the rest [5]. Safety Behind the Wheel Foundation shares that concern and urges drivers to look beyond the state minimum.
How to check and compare your own coverage
Grab your declarations page, the summary page of your policy that lists coverages and limits.
- Find the liability line. Note whether it shows three numbers or one.
- Write down the per person, per accident and property amounts, or the single amount.
- For split limits, add the per accident injury amount to the property amount. That is your total per accident.
- Picture three crashes: one person badly hurt, a full car of people hurt, and a crash with heavy property damage.
- Run each crash through your limits, as in the scenarios above. Note where money runs out.
- Ask your insurer for quotes on higher split limits and on a single limit with a matching total.
- Check that your uninsured and underinsured motorist limits and any umbrella policy still fit the new choice.
- Save the updated declarations page where your family can find it.
Questions to ask your agent or insurer
Bring these questions to your next renewal or coverage review.
When you are the one making a claim
Sometimes you are the injured person, not the driver at fault. Then the other driver’s limit structure shapes what you can recover.
Ask the other driver’s insurer for the liability limits in writing, and whether they are split or single. Ask how many other people have filed claims from the same crash. If many people were hurt, the money may need to stretch across all of them. If a truck or other commercial vehicle was involved, ask about its insurance too.
Do not sign a release until you know what it covers. Talk with your own insurer early, because your underinsured motorist coverage may matter. Our guide on what to do when the other driver’s insurance is too low walks through those steps. For serious injuries, a lawyer licensed in your state can explain how shared limits are handled where you live.
Frequently asked questions
Is a combined single limit better than split limits?
Not always. A single limit gives more room when one person is badly hurt, or when one type of loss is very large. Split limits can do better when many people are hurt, if the split amounts add up to more money. Add the per accident injury limit and the property limit, then compare that sum to the single limit. If the totals match, the single limit pays at least as much in any crash. Price and availability vary, so ask for quotes on both.
Does a combined single limit meet my state’s minimum insurance law?
It depends on your state. The state laws reviewed for this article write minimums as split amounts, and Florida’s law also names combined single limits in one rule [6, 9]. Do not assume. Ask your insurer to confirm in writing that your policy meets your state’s proof of insurance rules. You can also call your state insurance department or DMV.
If three people are hurt, does each one get the full per person limit?
Only if the per accident total allows it. With 100/300/100 limits, three people could each receive up to $100,000, because that adds up to $300,000. With four or five people hurt, they share the $300,000 per accident amount. No one can receive more than $100,000 from the policy, even if one person’s losses are far larger.
Can property damage really use up a single limit?
It can reduce what is left for injured people. Under a single limit, injury and property claims draw from the same pool. A crash that damages a work truck, a building, or several cars can take a large share. Under split limits, property claims are capped separately, so they cannot eat into the injury money. The tradeoff is that property owners may go unpaid sooner.
How do I tell which kind of limit I have?
Look at the liability line on your declarations page. Split limits appear as three numbers, often written with slashes, such as 100/300/100. A single limit appears as one dollar amount, sometimes marked CSL. If it is unclear, ask your agent or insurer.
How does this choice affect my uninsured motorist or umbrella coverage?
Check rather than assume. Your uninsured and underinsured motorist coverage has its own limits, and it protects you and your passengers. An umbrella policy may require certain liability limits underneath it. Before you switch formats, ask your insurer how the change affects both. Companion articles cover these coverages in depth.
The bottom line
Recommendation from Safety Behind the Wheel Foundation
Safety Behind the Wheel Foundation recommends comparing liability options by their total dollars and choosing higher limits in either format. Split limits and a combined single limit both put a ceiling on what your policy pays after a crash you cause. The difference is how that money gets divided. Split limits fence off a fixed amount for each person and for property. A single limit puts everything in one pool.
When one person is badly hurt, a single limit often stretches further. When many people are hurt and property damage is high, the bigger total wins. So start with the total, then think about the crashes your family is most likely to face. Higher limits in either format protect the people you might hurt, and they protect your family’s savings too.
Related articles
Sources and further reading
- 1National Highway Traffic Safety Administration, National Center for Statistics and Analysis. Overview of Motor Vehicle Traffic Crashes in 2023 (DOT HS 813 705). Published April 2025. Data year: 2023. crashstats.nhtsa.dot.gov/…/813705
- 2National Highway Traffic Safety Administration. Early Estimate of Motor Vehicle Traffic Fatalities in 2024 (DOT HS 813 710). Published April 2025. Data year: 2024 (estimate). crashstats.nhtsa.dot.gov/…/813710
- 3National Highway Traffic Safety Administration. The Economic and Societal Impact of Motor Vehicle Crashes, 2019 (Revised) (DOT HS 813 403). Published February 2023. Data year: 2019. crashstats.nhtsa.dot.gov/…/813403
- 4National Association of Insurance Commissioners. Consumer Auto (auto insurance consumer page). Accessed October 2026. content.naic.org/consumer/auto-insurance.htm
- 5Texas Department of Insurance. Auto insurance guide. Updated December 11, 2025. tdi.texas.gov/pubs/consumer/cb020.html
- 6Florida Legislature. Florida Statutes, Section 324.021 (subsection 7, proof of financial responsibility). 2025 Florida Statutes. flsenate.gov/Laws/Statutes/2025/324.021
- 7New York State Senate. New York Vehicle and Traffic Law, Section 311 (subdivision 4). Last updated March 8, 2024. nysenate.gov/legislation/laws/VAT/311
- 8Oregon Legislature. Oregon Revised Statutes, Chapter 806, Financial Responsibility Law (ORS 806.070). 2025 edition. oregonlegislature.gov/bills_laws/ors/ors806.html
- 9Florida Legislature. Florida Statutes, Section 324.031, Manner of proving financial responsibility. 2025 Florida Statutes. flsenate.gov/Laws/Statutes/2025/324.031
- 10Electronic Code of Federal Regulations. 49 CFR 387.9, Financial responsibility, minimum levels. Current as of October 1, 2026. ecfr.gov/…/section-387.9
- 11Electronic Code of Federal Regulations. 49 CFR 387.5, Definitions. Up to date as of September 29, 2026. ecfr.gov/…/section-387.5
- 12National Association of Insurance Commissioners. A Consumer’s Guide to Auto Insurance. Published 2022. content.naic.org/…/publication-aut-pp-consumer-auto.pdf
This article reflects the safety priorities of auto insurance consumer protection and financial security for drivers and the people they could hurt. It is general education, not legal, insurance or financial advice, and its examples are made up. Laws and policy terms vary by state and insurer and can change, so verify them with official sources. For your own situation, talk with a licensed insurance agent or your insurer, your state insurance department, or a lawyer licensed in your state. Reviewed October 2026.
Cite this article: Safety Behind the Wheel Foundation. “Split limits vs. a combined single limit: how each pays when several people are hurt.” drivewithcare.org, https://drivewithcare.org/split-limits-vs-combined-single-limit/. Reviewed October 2026.
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