The instruments for subjective assessment of work-related stress are aimed to evaluate individual perceptions of aspects that are crucial in the causal process linking psychosocial exposure to harmful physical and psychological health effects. Subjective assessment is most commonly performed by means of self-administered questionnaires, non least for their ability to hold down financial and economic costs of both field studies and data analyses. A common problem is that, for the major part of these questionnaires, no Italian validated (or accept) versions exist. Among available questionnaires, those that have been applied to a higher number of subjects in Italy are the Job Content Questionnaire, the Effort/Reward Imbalance Questionnaire, the Occupational Stress Indicator and the Multidimensional Questionnaire of Organizational Health. In this contribution, the main characteristics of the above-mentioned instruments are depicted. Finally, important aspects relating to the usage of self-administered questionnaires are emphasized, mainly when field evaluations are undertaken in specific work contexts.