Rate vs. Premium

Buyers often use rate and premium interchangeably, but they are two different numbers. A rate is a per-unit price — dollars charged for each unit of the exposure basis, such as $6.50 per $100 of payroll or $2.00 per $1,000 of sales. The premium is the full amount you are billed, calculated as rate × exposure units. In other words, the rate is the price tag on a single unit of risk, and the premium is what you pay once you account for how many of those units your business actually has.

The distinction matters when comparing quotes. A carrier offering a lower rate is not automatically cheaper, because the two insurers may classify your business differently or estimate your sales or payroll differently, changing the exposure count. Likewise, a rate increase and a premium increase are not the same event: your premium can rise even when the rate holds flat simply because your payroll or revenue grew. This is why savvy buyers ask for both the rate and the exposure assumptions behind a quote, not just the bottom-line number.

Underneath the retail rate sits regulatory plumbing worth knowing. In workers' comp, published loss costs reflect expected claim dollars per unit, and each insurer applies its own loss cost multiplier to cover expenses and profit, producing the final rate. Individual pricing factors — an experience modifier, schedule credits, or surcharges — then move your effective rate up or down from the manual premium baseline. Understanding this chain lets you see exactly where a premium comes from rather than treating it as a black box.