The current document is the main outcome of UNITI "Task 3.5 Health socio-economic impact model and analysis". As a consequence, in this study we tried to calculate the socio-economic costs of tinnitus and estimate the socio-economic value of the UNITI treatments and interventions. Therefore, the overall objective was the generation of improved knowledge that will lead to better diagnostic predictions that can potentially lead to reduced costs and improve life-expectance. This document reports on the results of Task 3.5. A systematic literature review on the healthcare and societal costs of tinnitus was completed and already published. The results of this review were used to design a questionnaire for an empirical evaluation with the participants in the UNITI randomized controlled trial (RCT). The results are reported here and are currently submitted to a peer-reviewed journal.