The expert who calculates premium for an insurance company is?

Insurance companies must charge policyholders a fair price, called a premium, for the cover they provide. Setting that price correctly requires statistical calculations based on the probability of a loss occurring, such as the chance of death, fire, or accident, and the likely size of any claim.

The professional trained in these statistical and mathematical calculations, who determines premiums and reserves for an insurance company, is an actuary. Their work ensures the company charges enough in premiums to cover expected claims while remaining fair to customers.

An assessor evaluates the value of a loss after a claim is made, an underwriter decides whether to accept a particular risk and on what terms, and a broker acts as a middleman who helps clients find suitable insurance. None of these roles is specifically responsible for the statistical calculation of premiums, which is the actuary's specialised task.

Keep the roles distinct: the actuary calculates premiums using statistics, the underwriter accepts or rejects risk, and the assessor values claims after a loss.