The purpose of this study was to establish the influence of capital structure and diversification of financial products on the performance of Sacco Societies in Kenya particularly Gusii Mwalimu Sacco society.The findings include: refinancing loans which was one of the diversified financial products of the Sacco had the greatest correlation with performance of the Sacco (Pearson Correlation = 0.907) this was attributed to its high level of interest charge on this financial product when compared with other financial products. Performance of the Sacco depends on firm’s capital structure, Sacco’s financial products diversification; Performance of the Sacco (PS) = 2.002E-15 + 0.778 FPD+ 0.222FCS.The capital structure had a significant contribution to performance (β=0.214, p= 0.0000<0.005) while Financial Products diversification had the highest significant contribution (β=0. and a strong association exists between financial products Diversification, Sacco capital Structure and Performance (R = 0.984) and the variation in Sacco’s Performance can be accounted for upto 96.7% by the regressors: Sacco’s capital structure as Kenya shillings over time and volume of Kenya shillings given out as loans on financial Products offered by the Sacco to its customers. The study recommends that Saccos should observe Capital structure requirements and financial products diversification to maximize their performance