Pro Rata Rate
The term pro rata comes from Latin and translates to in proportion, proportionally, the proportion of, proportionately determined, or according to a specific rate. It is often used in legal and economic texts or contexts to express a just distribution of an allocation. Pro rata generally refers to shares of a whole that is split in various ways, like a year is divided into 12 months or 365 days, a cost is divided in two ways that correspond in value to the profit, an asset is split into two, corresponding with the investment of each party.
The reason for which we discuss pro rata in the insurance world is because there are many pro rata elements in the field. The term weighs heavily on proportionate distributions of gains, liabilities, premiums, and payments, and the insurance industry deals with all of these. Pro rata clauses deal with spitting the coverage. In contrast, pro rata cancellations cover policies terminated during their coverage.
Pro rata rates are ways through which an insurance company can determine monthly payments or additional payments to an existing policy. We’ll see how just below.
Where is Pro Rata Rate Used?
Usually, insurance policies have a timeline of 12 months, a full year. There are, however, several types of insurances that have policies running for a few days, a few weeks, or a few months. Not all types of insurances are limited to the 1-year timeline. Look at travel insurance, car insurance, or health insurance as their coverage can be for less than a year.
In those instances, the insurance company has to establish an amount for the insurance premium. So, if an annual premium costs $1,000, but the driver loans the car and only uses it for two and a half months, he can sign a policy for that period alone. The insurance company needs to calculate the pro rata of the premium for that period. The pro rata rate, in this case, would be:
Pro Rata Rate = daily premium X days
Pro Rata Rate = ($1,000(annual premium)/365) x 76 (two and a half months)
Pro Rata Rate = $208 approximately
Another situation in which these pro rata rates help insurance companies to carefully calculate the exact premium required for a policy is when the policy changes. So, if John has a $1,000 annual premium for his car, but sometimes during that period, he decides to add another car to the policy from August 24th. In this situation, the start date, end date, and the date when the policy changes are required for a correct calculation. The pro rata rate, in this case, would be:
Pro Rata Rate = daily premium X days
Pro Rata Rate = ($1,000/365) X 130
Pro Rata Rate = $356 approximately
The figures are usually rounded up.
Popular Insurance Terms
Agreement by an insurance company to pay a predetermined amount, as indicated in an insurance policy, should a loss occur. ...
Coverage providing funds for maintenance of a business as closely to normal as possible in the event of a loss of a key person, owner, or partner. ...
Choice of a lump sum payment for an injury incurred instead of a series of periodic payments, available under a health insurance policy. ...
Individual appointed by the insurance company as an independent contractor. The agent receives various expense allowances for office-associated expenses and direct commissions on products ...
Arrangement whereby the insured pays the insurance company a relatively small monthly premium payment. In exchange for this premium payment, the insurance company processes and pays claims ...
Form of excess of loss reinsurance under which each year's reinsurance premium is determined by the amount of the cedent's excess losses for a given period of time, usually three or five ...
Employee benefit plans under which both the employee and the employer pay part of the premium. Contribution ratios vary. For example, an employer contributes two dollars for every dollar ...
Same as term Direct Response Marketing: method of selling insurance directly to insureds through a companies own employees, through the mail, or at airport booths. The company uses this ...
Means of projecting the costs of pension plans on a level basis over a specified future period of time. The actuarial value of each employee's future benefits to be paid at retirement is ...

Have a question or comment?
We're here to help.