Over the past two decades, the skills needed to be successful in the workplace have expanded beyond technical skills to include 21st-century soft skills such as critical thinking, communication, collaboration, and creativity. A structural equation model of the ATC21S[superscript TM] was used to investigate the relationship between 21st-century soft skills and numeracy for employed and non-employed Americans (N = 3,948) included in the Program for the International Assessment of Adult Competencies (PIAAC) data. Higher numeracy scores predicted employment while 21st-century soft skills did not. The results of this study may indicate a greater need to focus on numeracy in compulsory education as well as adult basic education.