This paper presents a social work study on relationship between exogenous components including monthly income, family relationship and physical health and endogenous variables including subjective happiness scale (SHS), satisfaction with life scale (SWLS) and happiness. The proposed study designs a questionnaire and distributes it among 254 employees of private banks in city of Tehran, Iran during the year of 2012. Cronbach's Alpha and Dillon-Goldstein's Rho both are well above 0.70, for SHS and SWLS and Eigenvalue for both components were greater than one. T-student values for all components were greater than 1.96, which means they are meaningful. Mean Communalities (Ave) calculated for both Latent Variables were greater than 0.50. The results of investigating various questions of the survey indicate that while healthcare is the most important factor on happiness, there is a positive and meaningful relationship between income and family relationships and happiness