What Is Business Insurance?

Business insurance is a group of policies designed to protect a company's finances, property, employees, and reputation from unexpected events. Rather than one single product, it is a toolkit: a small consulting firm, a restaurant, and a construction contractor each face different risks, so each typically carries a different mix of coverage. Most policies work the same basic way — a business pays a monthly or annual premium, and in exchange the insurer agrees to pay covered claims up to the policy's limit, minus any deductible.

Types of Business Insurance

The calculators above cover eight of the most widely purchased commercial insurance products. Here is what each one is designed to do.

General Liability Insurance

General liability covers third-party bodily injury, property damage, and advertising injury claims — for example, a customer slipping in your store or a contractor accidentally damaging a client's property. It is often the first policy a new business buys and is frequently required by landlords and client contracts.

Workers' Compensation

Workers' compensation pays for medical care and lost wages when an employee is injured or becomes ill because of their job. Nearly every state requires this coverage once a business has employees, and the cost is driven heavily by payroll size and job classification.

Commercial Auto Insurance

Commercial auto insurance covers vehicles owned or used for business purposes, including liability for accidents and physical damage to the vehicle itself. Personal auto policies typically exclude business use, which makes this coverage essential for delivery, trade, and service businesses.

Professional Liability Insurance

Also called errors and omissions (E&O) insurance, professional liability covers claims that a service, advice, or work product caused a client financial harm through a mistake or omission. It is essential for consultants, agencies, accountants, and technology firms.

Cyber Liability Insurance

Cyber liability insurance helps cover the costs of a data breach, ransomware attack, or other cyber incident, including notification expenses, credit monitoring, legal fees, and business interruption. Businesses that store customer payment or health data carry meaningfully higher exposure.

Business Owners Policy (BOP)

A BOP bundles general liability and commercial property coverage into a single, typically discounted policy. It is a popular starting point for small and mid-sized businesses that want broad protection without purchasing several separate policies.

Commercial Property Insurance

Commercial property insurance covers the building, equipment, and inventory a business owns or leases against fire, storm, theft, and other covered perils. Replacement cost, rather than depreciated value, generally provides the strongest protection.

Umbrella Insurance

A commercial umbrella policy adds an extra layer of liability protection above the limits of your general liability, auto, and employer's liability policies. It is comparatively inexpensive per dollar of coverage and is often recommended for businesses with significant assets or higher-risk operations.

How Business Insurance Premiums Are Calculated

Insurers price commercial policies using a rating formula that starts with a base rate for the industry and coverage type, then applies a series of multipliers. Typical rating factors include annual revenue or payroll, number of employees, years in operation, claims history, the state where the business operates, and a general risk classification for the type of work performed. The calculators on this page use a simplified version of that same logic to produce a realistic estimate.

Factors That Affect Business Insurance Costs

Several factors consistently move premiums up or down: higher revenue or payroll increases exposure and cost; a history of prior claims signals higher future risk to underwriters; operating in a high-litigation or high-risk state raises rates; larger property or vehicle values increase the amount an insurer could have to pay out; and industries with inherently higher hazard levels, such as construction or food service, pay more than low-risk office-based businesses.

How to Lower Your Business Insurance Premium

Business owners can often reduce premiums by bundling policies into a BOP, raising deductibles, maintaining a clean claims history, installing safety and security systems, providing employee safety training, and shopping quotes from multiple carriers annually. Some insurers also offer discounts for longer time in business or for paying the annual premium in full.

Who Should Use This Calculator?

This calculator suite is built for small business owners, freelancers, independent contractors, LLCs, startups, and growing corporations who want a fast, no-obligation way to estimate costs before requesting formal quotes from licensed insurance providers.