[Penelitian ini bertujuan untuk mempelajari faktor-faktor yang mempengaruhi struktur modal perusahaan. Objek penelitian ini adalah perusahaan manufaktur yang beroperasi di Indonesia dan terdaftar di Bursa Efek Indonesia selama periode penelitian yaitu tahun 2009 hingga 2013. Faktor-faktor yang diuji pengaruhnya terhadap struktur modal perusahaan adalah profitabilitas, tingkat pertumbuhan,tingkat pajak, struktur aset, tingkat risiko dan ukuran perusahaan. Estimasi model yang dilakukan dengan menggunakan regresi panel Fixed Effect Model. Dari hasil regresi yang dilakukan, semua faktor menunjukkan pengaruh signifikan terhadap struktur modal perusahaan kecuali tingkat risiko.;The aim of this study is to explore the impact of firm’s factors toward structure capital. Using panel regression, this study seeks to examine the effect of several factors on capital structure for the period of 2009 to 2013. The variables of firm’s factors that are being explored are profitability, growth, tax, asset structure, risk and size. The Fixed Effect Model of panel regression is being employed in the model estimation. The findings reveal that all of factor’s play an important role ininfluencing capital structure except risk.;The aim of this study is to explore the impact of firm’s factors toward structure capital. Using panel regression, this study seeks to examine the effect of several factors on capital structure for the period of 2009 to 2013. The variables of firm’s factors that are being explored are profitability, growth, tax, asset structure, risk and size. The Fixed Effect Model of panel regression is being employed in the model estimation. The findings reveal that all of factor’s play an important role ininfluencing capital structure except risk., The aim of this study is to explore the impact of firm’s factors toward structure capital. Using panel regression, this study seeks to examine the effect of several factors on capital structure for the period of 2009 to 2013. The variables of firm’s factors that are being explored are profitability, growth, tax, asset structure, risk and size. The Fixed Effect Model of panel regression is being employed in the model estimation. The findings reveal that all of factor’s play an important role ininfluencing capital structure except risk.]