Key Findings -Between 167,000 and 300,000 hectares of forest are lost every year in Zambia, and different polices are in place or have been proposed to contain forest loss. -Agriculture land expansion is one of the major drivers of deforestation, yet increasing agricultural production is necessary to feed a growing population and meet changing diets. -This paper assesses the extent of cropland expansion among smallholder farmers and whether or not climate smart agriculture (CSA) can help reduce expansion and deforestation. -About 21 percent of rural farm households interviewed in RALS 2019 expanded cropland between the 2016/2017 and 2017/2018 farming seasons, clearing on average 0.18 ha, but only 13 percent of rural smallholders expanded their cropland into forests, clearing an average of 0.10 ha of forestland per household. -Smallholder cropland expansion into forests represents about 60 percent of the average 250,000 ha of forests lost per year in Zambia. -Most households expanded cropland because of the need to meet subsistence food needs and a few others in response to market opportunities. -Much of the cropland expansion among smallholder farmers is concentrated in Luapula, Muchinga, Northern, North-Western, and Western provinces. -Using CSA had no statistically significant effects on cropland expansion in our sample, indicating that CSA alone might not avert expansion-led deforestation. -Thus, CSA-led intensification alone might not reduce deforestation unless if complemented with improved forest management policies.