OESC calculates employer contribution rates using the information provided in an employer's quarterly wage reports, as well as the state's current experience factor (50%) and conditional factor (D). The rate calculation involves dividing the benefit wage charges (BWC) into the timely taxable wages to create a benefit wage ratio. That ratio is then used to calculate the employer's contribution rate using the Rate Table in the Oklahoma Employment Security Act (last 2 pages).
Example - Benefit wage charge amount of $10,000 divided by the amount of timely taxable wages of $300,000 ends up with a benefit wage ratio of 3.3%. The $10,000 is 3.3% of the $300,000. The benefit wage ratio is then referenced on the Rate Table in the Oklahoma Employment Security Act, using the state's current experience factor (50%) and conditional factor (D), which shows a contribution rate of 2.8% (for 2021).
More information about contribution rates, and the various factors that go into it by viewing article 3 of the Oklahoma Employment Security Act.