Insurance Premium

An insurance premium is the amount an insurer charges to provide coverage for a stated period. The National Association of Insurance Commissioners, the standards body of the state insurance regulators, defines a premium as "money charged for the insurance coverage reflecting expectation of loss." That last clause is the whole logic of the price. A premium is not a deposit, a savings contribution, or a fee for service rendered; it is what the insurer calculates it must collect, across everyone it covers, to pay the losses it expects plus the cost of running the business. HealthCare.gov puts the consumer-facing version more bluntly, in describing a premium as a monthly amount "you pay for coverage whether you get services or not."

The internal structure of a premium is worth knowing, because it explains several things that otherwise look arbitrary. NAIC defines the pure premium as "that portion of the premium equal to expected losses void of insurance company expenses, premium taxes, contingencies, or profit margin." Everything charged above that figure is loading, and NAIC's definition of the gross premium names commissions and operating expenses among what gets added. So a premium is expected loss plus the cost of operating the arrangement. Two policies with identical coverage can carry different premiums for reasons that have nothing to do with the risk being insured, including how the policy is distributed and what the distribution is paid.

What sets the expected-loss half is pooling and classification. NAIC describes insurance itself as "an economic device transferring risk from an individual to a company and reducing the uncertainty of risk via pooling," which works because individual outcomes are unpredictable while the aggregate is not. Underwriting is how an insurer decides where you sit within that pool: the process by which it "examines risk and determines whether the insurer will accept the risk or not, classifies those accepted and determines the appropriate rate for coverage provided." Classification is not moral judgment, and it is not personal history alone. It is a statement about the group the insurer has placed you in, which is why a premium can rise in a year you filed nothing. The reason insurers classify at all is adverse selection, the tendency NAIC describes for people with a higher-than-average probability of loss to seek more coverage than people with less risk. Without classification, the low-risk members of a pool leave and the price for everyone else climbs.

The other half of the price is the coverage you chose. A higher deductible, a lower limit, narrower coverage, or a shorter term all reduce what the insurer expects to pay and therefore reduce the premium. The cheapest policy in a range is usually the one that asks the most of you at the moment you claim, which is why HealthCare.gov's guidance is to compare "your estimated total yearly costs for each plan, not just the premium." Its marketplace tiers are arranged on exactly that axis, with the lowest-premium Bronze plans carrying a deductible it describes as generally high and the higher-premium Gold and Platinum plans carrying low ones. That is a trade-off rather than a recommendation. The question it turns on is not which policy is cheaper but what a bad year would do to your cash, which is a fact about your finances rather than about the policy.

Three consequences round out the picture, and each one answers a common complaint. First, premiums do not count toward the deductible or the out-of-pocket maximum. HealthCare.gov lists monthly premiums among the items the out-of-pocket limit "doesn't include," so the premium is the cost of being covered and everything else is the cost of using the coverage. Second, no refund is due for a year in which you claimed nothing, because the premium bought something you received, which is the transfer of a risk you could not absorb yourself. Cancelling mid-term is different. The portion covering a period not yet elapsed is the unearned premium, which NAIC defines as premium already paid for coverage that "has not yet been provided," and it is generally returnable. Ohio, to take one state, requires an auto insurer cancelling a policy to refund any premium due the insured before the cancellation takes effect. Both the deadline and the arithmetic are set by the policy and by state law rather than nationally, and a refund on your own cancellation is not always a straight proportion of the unexpired term, because the insurer may hold part of it back against the cost of having written the policy in the first place. Third, the payment is what keeps the contract alive. NAIC defines a lapse as "termination of a policy due to failure to pay the required renewal premium," and a lapsed policy is not a paused one, since re-applying may mean new underwriting at a new price or no offer at all.

An insurer estimates how much it will have to pay out across a defined group over a defined period, divides that by the number of policies to get the expected loss per policy, and then adds enough to cover claims handling, operating expenses, commissions, premium taxes, a margin for adverse experience, and profit. That total, allocated to you according to how underwriting classified you and adjusted for the deductible and limits you selected, is your premium. It is then billed monthly, quarterly, or annually, and coverage continues only while it is paid.

A hypothetical example. An insurer covers 10,000 homeowners against a peril that experience says destroys 1 home in 200 each year, at a cost of $60,000 per loss. That is 50 losses and $3,000,000 of expected claims across the group, or $300 per policy, which is the pure premium. If expenses, commissions, premium taxes, contingencies and profit account for 30% of every dollar collected, the premium has to be $300 ÷ 0.70, or about $429. Check the arithmetic from the other end: 10,000 policies at $429 is $4,290,000 collected, less $3,000,000 of expected claims, leaving $1,290,000 for everything else, which is 30% of what came in.

Now change one term. With a $2,500 deductible, the insurer pays $57,500 per loss instead of $60,000, so the pure premium falls to $57,500 ÷ 200 = $287.50 and the premium to about $411. The homeowner saves roughly $18 a year and accepts $2,500 of exposure on any claim, which in this simplified pool is a poor trade. Note why it is simplified: this pool contains only total losses, while real claim experience is dominated by small ones, and a deductible removes many of those entirely along with the cost of processing them. Nothing in this pool can produce that effect, because every loss in it is a total loss, so a real deductible credit is larger than these figures suggest.

Pros

• Converts an unpredictable cost you might not survive into a known one you can budget, which is the entire economic point of the payment.
• The amount is stated in advance for the policy period, so it can be compared across policies and planned for like any other fixed expense.
• Level-premium designs, common in term life insurance, hold the payment constant for the whole term so the cost does not climb as the risk does.
• The premium is adjustable by design. Raising a deductible or trimming coverage you do not need lowers it without changing insurers.

Cons

• You pay it in every period, including the many periods in which you claim nothing and receive no money back.
• It does not count toward the deductible or the out-of-pocket maximum, so the lowest premium can still produce the highest total cost in a year you actually use the coverage.
• It reflects the class an insurer has assigned you to, so it can rise for reasons unrelated to anything you did.
• Part of it is not expected loss at all but expenses, taxes, commissions and profit, which is why identical coverage can be priced differently by different insurers.
• Missing a payment can end the coverage outright, and getting it back may require new underwriting at a worse price.