An insurance premium is the amount you pay — monthly, quarterly, or annually — to keep an insurance policy active. It is the cost of coverage, separate from what you pay out of pocket when you actually file a claim.
A premium is the price of an insurance policy — the payment you make to the insurer, on a schedule you agree to, in exchange for coverage. Paying the premium keeps the policy "in force" (active). Stopping payments typically causes the policy to lapse, meaning you lose coverage. Premiums are separate from what you pay when you use insurance; those costs are governed by your deductible, copay, or coinsurance terms.
Insurers use actuarial data to estimate how likely you are to file a claim and how costly that claim might be. Factors vary by policy type, but common inputs include your age, location, claims history, coverage limits, and the deductible you choose. The National Association of Insurance Commissioners (NAIC) publishes consumer guides explaining how insurers are regulated and how rates are filed with state agencies.
Your premium is what you pay to own the policy. Your deductible is what you pay before insurance kicks in on a claim. A policy with a $1,200 annual premium and a $500 deductible means you pay $1,200/year regardless of claims, and if you file a claim you pay the first $500 of covered costs before the insurer pays the rest. The CFPB's insurance resources walk through these relationships in plain language.
Insurers can adjust premiums at renewal. Rate changes must generally be filed with and approved by your state's insurance department before they take effect — a protection established under state insurance regulation. If your premium increases significantly, you have the right to shop for competing coverage or ask your insurer for an explanation. The USA.gov insurance page lists state insurance regulators you can contact with complaints or questions.