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Strict liability

Strict liability is the responsibility that small business owners have for damages or injuries their products cause, even if they did nothing wrong.

What is strict liability?

If you sell products, use potentially dangerous tools or chemicals, or run certain high-risk operations, you could be held responsible for injuries or damage even if you did nothing wrong. That’s called strict liability, and it’s one of the most important legal concepts small business owners need to understand.

In short, strict liability means you can be held legally responsible for harm your product or activity causes even if you took every reasonable precaution and weren’t negligent.

In other words, whether or not you were careless, made a mistake, or knew about a problem, you can still be liable if someone is injured and your product or business activity was the cause.

If someone is injured and your product or business activity caused it, you can still be liable.

Who needs to worry most about strict liability?

You should pay close attention to strict liability if you:

Even service businesses can face strict liability if they sell products as part of their work.

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Strict liability vs. negligence: What’s the difference?

The key difference is that negligence focuses on how you acted, while strict liability focuses only on what happened, the harm itself.

With strict liability, the injured person doesn’t need to prove you were careless. They only need to show:

  • Your business made, sold, or used something
  • Someone was injured
  • The injury was caused by that product or activity

This is why strict liability creates serious risk for small businesses—even very careful ones.

ConceptWhat must be proven

Negligence

You failed to act with reasonable care

Strict liability

Your product or activity caused harm

What is product liability?

Product liability means the product you designed, produced, distributed, or sold had a defect that ended up hurting the purchaser of the product. Alternatively, it might have damaged the buyer’s personal or business property.

Defects are at the core of product liability lawsuits. Normally, plaintiffs will allege that the small business sold a product that had:

A manufacturing defect: This is a problem in a mass-produced product that made it more dangerous to use and that caused customer injury or property damage. Selling a defective product automatically exposes you to strict liability even though you took reasonable steps to assure the product was free of defects.

A design defect: A manufacturing defect normally only applies to isolated units that leave production with a flaw. However, a design issue produces an entire product line with defects.

In addition, plaintiffs might allege that the business failed to warn them of the inherent, but not necessarily obvious, dangers of using a product.

For example, a candy bar manufacturer might include a warning on its product labels that it made the candy on equipment exposed to peanuts. This warns consumers with peanut allergies to avoid eating those candy bars.

Not putting that warning on the label might subject the candy manufacturer to consumer lawsuits for failure to warn.

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How does strict liability affect small business owners?

Strict liability can affect your business in ways beyond just lawsuits:

  • Higher insurance premiums after a claim
  • Reputational damage if your product is seen as unsafe
  • Lost contracts if clients require proof of coverage
  • Financial stress from legal defense and settlements

Even one strict liability claim can be devastating for a small business without proper coverage.

Strict product liability relaxes the burden of proof a plaintiff must meet in pursuing legal action against a small business. As a result, it makes running a business much riskier than under standard liability rules.

In practice, this means businesses that design, manufacture, wholesale, or sell products need robust liability insurance to protect them in case they’re sued under strict liability rules.

Standard general liability insurance provides coverage for product liability lawsuits under the products and completed operations aggregate limit. However, if your firm manufactures or sells high-risk products, you may want to boost your protection by adding a product liability endorsement to your general liability policy.

Common strict liability situations for small businesses

Strict liability most often applies to products, but it can also apply to other business activities, including:

  • Product liability: If you manufacture, distribute, or sell a product that injures someone, you could be strictly liable for design defects, manufacturing defects, or missing or unclear warnings. This applies even if you didn’t make the product yourself.
  • Inherently dangerous activities: Some activities are considered risky by nature, such as: using explosives or flammable chemicals, handling toxic substances, or running certain industrial operations. If someone is injured during these activities, liability may apply regardless of fault.
  • Animals and property risks: In certain states, businesses can be strictly liable for injuries caused by animals they own or use, or dangerous conditions on their property.

What is the plaintiff’s burden of proof in a strict liability lawsuit?

First and foremost, plaintiffs must prove that:

  • The product they purchased had a defect.
  • The defect resulted in them suffering property damage or bodily injury.
  • The defect made the product unreasonably hazardous to use.

Are strict liability lawsuits limited only to those who purchase a product?

No, those without a direct relationship to the product—bystanders, guests, family members, and others—still have grounds to sue if a product defect hurts them or damages their property.

How does strict liability affect your insurance?

Strict liability is one of the main reasons general liability insurance and product liability coverage are so important.

There are several policies that can protect your small business, such as:

Some high-risk activities or products may require specialized coverage or higher limits.

If you’re sued under a strict liability tort (wrongful act) scenario, your attorney may raise one or more common legal defenses. These include:

Assumption of risk: Here your lawyer will try to prove the plaintiff knew or should have known about the risk of operating the product and the person voluntarily assumed that risk.

Federal regulation: Your attorney may also argue you complied with all relevant federal safety regulations, making you immune from strict liability exposure.

Statute of limitations: Finally, your attorney might try to convince a judge the plaintiff failed to file the claim soon enough after the loss was discovered (or should have been discovered).

How else can a small business owner protect against a strict liability lawsuit?

In addition to insurance, which serves as your financial backstop, you should focus on liability exposures when a product is being designed, as well as:

  • Rely on your engineers and legal team to identify potential defects and safety concerns before a product enters manufacturing.
  • Review customer feedback from similar products to identify problem areas.
  • Finally, be sure to invest in comprehensive product label warnings, as well as detailed user manuals. This'll help you to establish assumption of risk if and when a consumer sues you over an alleged product defect.

Practical risk-reduction tips for small businesses

While you can’t eliminate strict liability, you can reduce your risk:

  • Test products and keep safety records
  • Use clear warning labels and instructions
  • Vet suppliers and manufacturers
  • Keep quality control documentation
  • Train employees on safe handling procedures
  • Maintain strong insurance limits

Insurance is your financial backstop—but good documentation and safety practices help prevent claims in the first place.

Get free quotes and compare policies with Insureon

Insureon helps small business owners compare business insurance quotes with one easy online application. Start an application today to protect yourself against strict liability claims arising from your product design, manufacturing, and sales activities.

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Updated: January 26, 2026
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