In this study we investigate the impact of firm and entrepreneurship characteristics in small and medium enterprises (SME-s) investment finance through debt (bank loan). Data are gathered from interviews based on a self-organized questionnaire with 150 SME-s in Kosovo. Based on the econometric model of linear regression, key factors are identified which influence the investment growth financed by debt. The results indicate that there is mutual correlation among the firm’s age, size, business plan, sector, number of owners, sources of financing and the investment growth financed from banks in Kosovo. Therefore, findings in this work suggest that the access to external sources of financing through bank loan is an important factor that influences the investment growth. The paper provides some important conclusions and implications for policymakers and entrepreneurs.