1. The probability of the insured event occurring

It is shown by mortality tables in life insurance and morbidity tables in health insurance. The part of risk premium can be calculated by multiplying the sum assured with relevant information in these tables.

2. The time value of money
The time value of money through rate of interest is the second factor taken into account for the calculation of premium. Net premium can be calculated by deducting interest component from risk premium.

3. Loading to cover expenses, taxes, profits and contingencies
Tabular premium can be calculated by adding all these office expenses to net premium.

4. The benefits promised

The fourth factor is the benefits promised under the contract. A loading in this respect is also included to arrive at the actual premium payable. Office premium is the sum of tabular premium and the promised benefits.