Abstract: An aspect of the present disclosure provides an estimate of incentive compensation for opportunities in a sales performance management system (SPMS). In an embodiment, the SPMS computes incentive compensation for sales representatives based on completed transactions, and then formulates polynomials modeling the computed incentive compensation for each sales representative. The SPMS thereafter estimates incentive compensation for various opportunities based on the formulated polynomials. According to another aspect of the present disclosure, the SPMS is designed to compute the incentive compensation (for actual completed transactions) in batch-mode, while the sales representatives may interactively obtain estimates of incentive compensation for opportunities in real-time.