Abstract: Methods and apparatuses, including computer program products, are described for dynamically determining a set of threshold interest rates associated with a guaranteed life insurance product. A computing device determines an in-effect set of threshold interest rates for the product based on a target profit value for the product and applies the in-effect set of rates to an application for the product upon receipt of the application. The computing device determines periodically whether to modify the in-effect set of rates based on a comparison of an estimated profit value to the target profit value. If the computing device determines that the in-effect set of rates is to be modified, the computing device calculates a modified set of rates and applies the modified set of rates to the application on its issuance date, if the modified set of rates is higher than the set of rates currently applied.