The core policies, and what each one actually does

  • General liability. Third-party bodily injury, property damage, and personal and advertising injury. The customer who slips in your shop, the contractor who damages a client's floor. See our general liability guide.
  • Commercial property. Your building, equipment, inventory and furnishings. Note that standard commercial property excludes flood and earthquake, exactly as homeowners policies do.
  • Business owner's policy (BOP). General liability plus commercial property plus business interruption, bundled and priced for small and mid-sized low-hazard businesses. Usually cheaper than buying the parts separately.
  • Workers' compensation. Medical care and wage replacement for employees injured at work. Legally required in nearly every state once you have employees. See our workers comp guide.
  • Commercial auto. Vehicles owned, leased or used by the business. Personal auto policies exclude business use. See our commercial auto guide.
  • Professional liability (E&O). Claims that your professional advice or service caused a financial loss. See our E&O guide.
  • Cyber liability. Data breach response, notification, extortion and business interruption from a cyber event. See our cyber guide.
  • Umbrella / excess liability. Additional limits sitting above general liability, auto liability and employers liability.

Two more that mid-sized firms often need: employment practices liability (EPLI) for wrongful termination, discrimination and harassment claims, which are excluded from general liability; and directors and officers (D&O) liability, relevant as soon as you have a board, outside investors, or a nonprofit governance structure.

What is legally required versus contractually required

Legally required. Workers' compensation once you have employees, in every state except Texas, where private-employer coverage is elective — though a Texas non-subscriber gives up important legal defenses and must report its status to the state. Commercial auto liability for business-owned vehicles, under state financial responsibility laws. Certain industry-specific coverages, such as surety bonds for contractors or malpractice for licensed clinicians in some states.

Contractually required. This is what actually forces most purchases. Commercial leases routinely require general liability with specified limits and the landlord named as additional insured. Client master service agreements require E&O and cyber limits. Lenders require property coverage. General contractors require subcontractors to carry general liability, auto and workers comp before they can step on site.

The practical consequence: read your leases and client contracts before you shop, because the insurance requirements are already written there. Buying to those specifications the first time avoids the expensive scramble of mid-term endorsements.

How commercial policies are priced

Commercial pricing runs on exposure bases rather than flat rates, which is why quotes require so much information.

  • Class code. Your industry classification drives the base rate more than anything else. A software consultancy and a roofing contractor are priced in entirely different worlds.
  • Revenue and payroll. General liability commonly rates on gross receipts or payroll; workers comp rates per $100 of payroll by class code.
  • Property values. Building limit, business personal property, and the construction, occupancy, protection and exposure of the location.
  • Limits and deductibles. Per-occurrence and aggregate limits, and any self-insured retention.
  • Loss history. Usually five years of prior claims, and for workers comp an experience modification factor.

Because most commercial policies are auditable, the premium you pay at inception is an estimate. At the end of the term the insurer audits actual payroll or receipts and issues an additional premium or a return. Underestimating revenue at binding does not save money — it defers a bill.

Occurrence versus claims-made: the distinction that matters most

This is the single most consequential technical difference in commercial insurance, and it is routinely misunderstood.

An occurrence policy covers incidents that happen during the policy period, no matter when the claim is reported — even years later, after the policy has expired. General liability is normally written this way.

A claims-made policy covers claims first made against you during the policy period, and only for incidents after a stated retroactive date. Professional liability, cyber, D&O and EPLI are normally written this way.

Two implications follow. First, on a claims-made policy you must maintain continuous coverage and preserve your retroactive date when you change insurers — a new policy with a fresh retro date wipes out coverage for everything you did before. Second, when you cancel or retire, you need tail coverage (an extended reporting period) to cover claims that arrive after the policy ends. Tail is typically priced at 100% to 300% of the annual premium and is not optional if you have exposure.

How to build the program in order

  1. List every legal and contractual requirement from your state, your lease, your loans and your client agreements. Note required limits and additional-insured language.
  2. Map your actual exposures. Do you have employees? Vehicles? A physical location customers enter? Do you give professional advice? Do you hold customer data? Each yes points to a specific policy.
  3. Start with a BOP if you qualify, then add the specialty lines your exposures require.
  4. Set limits against realistic worst cases, not against price. A $1 million per-occurrence limit is the market default, not a considered decision.
  5. Use an independent broker for anything complex. Commercial wordings are not standardized the way personal lines are, and a broker who works your industry knows which carriers' forms are broad and which are hollowed out.
  6. Review annually and after every material change — new state, new product line, new employee category, first vehicle, first big client contract.

Frequently asked questions

For a low-hazard business with no employees, no vehicles, no professional advice and no sensitive data, often yes. Add workers comp the moment you hire, commercial auto the moment you use a vehicle for work, E&O if you advise clients, and cyber if you hold customer data.
Only marginally. Standard homeowners policies carry very low sublimits for business property and generally exclude business liability entirely. A home-business endorsement covers modest operations; anything with real revenue, inventory or client visits needs a commercial policy.
An endorsement extending your liability coverage to another party — typically a landlord or a general contractor — for claims arising out of your work. It is a contractual requirement, not a courtesy, and the specific endorsement form number usually matters to whoever is requiring it.
It varies far too much by industry, revenue, payroll, location and limits for a national average to be useful. Insurer-published benchmarks put many small low-hazard businesses in the range of roughly $500 to $2,000 a year for a general liability policy or a basic BOP, but a contractor or a clinic will pay multiples of that.

Sources

Every figure above is drawn from the following publications. Links open on the publisher's own site.

IW

InsureWiseHub editorial team

We write plain-language explainers about U.S. insurance and cite a primary source for every number. We do not sell insurance and we are not paid by insurers. Read our editorial policy.

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