This research explores how top management participation and three types of IT capability enable SMEs' competitive process alignment and flexibility capabilities. Our research hypotheses are tested using data from 310 Australian SMEs. Results show that top management participation and external IT linkage capability positively affect both process alignment and process flexibility. While IT infrastructure capability and IT business spanning capability positively affect process alignment, they are not significantly related to process flexibility. In addition, both process alignment and process flexibility capabilities have significant positive effects on SME performance. Contributions and implications of this study are discussed.