As a rule, you clarify the reason for and aim of the assessment with the consultant in a non-binding and free initial consultation and discuss the procedure, duration and costs.
The cost of a career assessment for adults varies from free to more than CHF 200 per consultation hour - depending on the provider and duration. Check the options in your canton of residence: some of the cantonal career advice centers offer their residents career assessments and career advice free of charge or at reduced rates.
In addition to public providers, there are numerous private providers of career assessment for adults. Ask about their rates and whether you can have a career assessment separately or whether it is only offered as part of comprehensive career counseling.