E-HRM is coming to a more full-grown stage within organisational life. Much is assumed and expressed about the advantages of e-HRM, however scientific proof of these advantages is scarce. No clarity exists about the answer to the question whether e-HRM contributes to HRM effectiveness. In this paper we present results from the first quantitative study on the contribution of e-HRM to HRM effectiveness. The data is collected in a Dutch ministry. Results show that actual use of the e-HRM application correlates with HR effectiveness, especially the content and design (= quality of the e-HRM application). Regression analysis confirms that the experienced quality of the e-HRM application is the only significant explanatory factor of technical and strategic HR effectiveness. In the final section of the paper conclusions are drawn, limitations discussed and future research directions raised.