PurposeThe purpose of this paper is to examine the impact of three training indicators, namely offer, participation and cost, on three firm outcomes, namely voluntary turnover, firm performance and profit.Design/methodology/approachThe empirical analysis is carried out using firm-level data sourced from a Canadian national data set. In total, data from 5,237 for-profits firms with ten employees or more were analyzed longitudinally over eight years. Results were generated by XTREG fixed effect longitudinal analyses between the three variables of training, voluntary turnover, firm performance and profit.FindingsTraining offer, operationalized as the number of different formal training programs offered annually by an employer, significantly decreases voluntary turnover while it significantly increases performance and profit. Training participation, operationalized as the percentage of employees receiving training per year, has a significant positive impact on voluntary turnover. Training cost, operationalized as the annual cost of training per employee, has no impact on the three firm outcomes.Practical implicationsAmong the various human resource practices a firm can use to strengthen its human capital, training can have a significant impact of its own. Investing in a diversified training offer brings value to a firm by decreasing employee voluntary turnover while increasing firm performance and profit.Originality/valueThis research contributes to the strategic impact of organizational training, demonstrating the impact of training on key organizational outcomes over time. Further, this paper contributes to the empirical literature by making a distinction between voluntary and involuntary turnover. Last, even though this study does not entirely addresses the problem of possible reverse causality, using longitudinal objective data, this study addresses several limits of past research at the macro-level of analysis.