Small Business Insurance Cost Calculator

Advertising disclosure: we may earn a commission from links on this page, at no cost to you.

Want the reasoning, not just the number? Read how much small business insurance costs, compare general liability vs professional liability vs a BOP, or look up the average cost in your state.

What most small businesses actually pay

Before you trust any estimate — ours included — it helps to know the shape of the market. Small business insurance is cheap relative to what owners expect, and the spread is wide because insurers are pricing the risk of the work itself.

How this calculator works

There is no magic in it, and we would rather show you the working than ask you to trust a black box. The calculator takes the national base rate for the coverage you picked and applies four multipliers:

Base rate × trade × size × state × limit = estimated monthly premium

The typical range shown under the figure is the estimate −25% to +30%, which is roughly the spread between the cheapest and most expensive carrier quoting the same risk. That asymmetry is deliberate: premiums have a floor (carriers have a minimum they will write a policy for) but no real ceiling.

Everything runs in your browser. Nothing you select is sent to us, stored, or used to contact you, and there is no email wall in front of the result.

Trade multipliers

Industry is the single biggest input, because the insurer is pricing how likely a normal working day is to injure someone or damage property.

Business size multipliers

Headcount is a proxy for payroll and for how much work you do — more people means more hours in which something can go wrong. It matters most for workers’ compensation, which is rated directly on payroll.

State multipliers

Where you operate moves your premium by roughly 40% either side of the national average. Litigation climate, weather exposure, medical costs and state regulation all feed in. These multipliers are derived from the same data as our average business insurance cost by state guide, so the two agree.

Coverage limit multipliers

The counter-intuitive one: doubling your limit does not double your premium, because the expensive part of a policy is the first dollar of risk, not the last.

Three worked examples

The same arithmetic the calculator runs, spelled out.

A solo consultant in Ohio, general liability

$45 base × 0.80 (consulting) × 0.80 (just me) × 0.92 (Ohio) × 1.00 (standard limits) = about $27 a month, or roughly $324 a year. This is the profile that gets closest to advertised “from” pricing.

A five-person landscaping company in Texas, general liability

$45 base × 1.35 (landscaping) × 1.00 (2–5 people) × 1.22 (Texas) × 1.00 = about $74 a month, or roughly $888 a year. Powered equipment and a higher-cost state each add roughly a third.

A ten-person contractor in Florida, BOP at $2M limits

$83 base × 1.75 (contractor) × 1.55 (6–20 people) × 1.56 (Florida) × 1.30 ($2M/$4M) = about $455 a month. Four multipliers all pushing the same direction is how a “$45 a month” product becomes a five-figure annual line item — and why contractors in Florida should be quoting several carriers, not one.

Why your real quote may not match the estimate

If the number that comes back from a carrier is well above what the calculator said, one of these is usually why:

• Prior claims. One paid claim in the last five years can add 20–40%. Three moves you into a different market entirely.
• Revenue. We assume revenue typical for the headcount you chose. A three-person agency billing $2M is priced like a much larger business.
• Class code. Insurers rate on granular class codes, not the twenty broad trades in this tool. “Contractor” covers both a handyman and a steel erector.
• Subcontractors. Uninsured subs are usually rated as your own payroll. Collecting certificates of insurance from them is the single cheapest way to cut a contractor’s premium.
• Required endorsements. Additional insured, waiver of subrogation, primary and non-contributory — each one a client contract demands adds cost.
• Location specifics. Coastal Florida, wildfire-exposed California and hail-belt Texas are priced well above their own state averages.

If the quote comes back well below the estimate, read the limits and the exclusions before you celebrate — a cheap policy that excludes your main activity is not a bargain.

Six ways to pay less than the estimate

• Bundle into a BOP. General liability plus property in one policy typically costs 20–25% less than buying them separately. See the BOP cost guide.
• Pay annually. Monthly instalments usually carry a 5–10% financing charge.
• Raise the deductible on property coverage. Going from $500 to $1,000 often saves 5–10%, and you were never going to claim $500 anyway.
• Buy the limit your contract requires, not more. Most owners buying $2M are satisfying a contract that asked for $1M.
• Collect certificates from every subcontractor. The biggest single lever for any trade that hires help.
• Quote at least three carriers. The same risk is priced very differently by different underwriters — a 40% spread on identical coverage is normal, which is the entire reason this site exists.

Frequently asked questions

Figures on this page are illustrative benchmarks compiled from carrier-advertised pricing and published industry medians, not quotes. Compare Small Business Insurance is an independent comparison and referral service, not an insurance company, agency or broker; we do not underwrite, sell or service insurance. Your actual premium is determined solely by the insurer that underwrites you. This is general information, not insurance advice — see our editorial policy, advertiser disclosure and terms of use.