Biratnagar Customs Office situated in Biratnagar, Morang District, EasternDevelopment Region of Nepal. This is the third largest Customs Office as per the Revenue Collection Volume. There are nine sub-customs offices.

Major imported goods through this customs are Petroleum Product like Diesel, Petrol, LP Gas, Crude soya-bean oil, Motorcycles, Betelnuts, M.S. Billets, Iron Structure, Coal, Glazed Tiles, etc. Similarly, major exported goods are Betelnuts, Cardamom, Woven Fabrics, Jute Sacking Bag, G.I.Wire, PP GI Coil, Dyed Yarn, Jute Hessian Fabric, Brass Strip in Coils, G.C.Sheet etc.