Persons with psychiatric disabilities are often assumed to lack capacity to take charge and make decisions concerning their own lives. Assistive technology can form one part of the rehabilitation process for this group. The devices are intended to give a feeling of security and independence in day-to-day life for the individual and assist in increasing participation in society. To investigate accessibility to assistive technology for persons with psychiatric disabilities a web-based questionnaire was sent to each of Sweden's county councils and regions (totally 22). Questions were asked about the availability of assistive technology for persons with cognitive decline. To also define the cost and the benefit of assistive technology a cost-benefit analysis was implemented. The cost-benefit assessment was based on information from existing studies and from interviews. The results showed that persons with psychiatric disabilities are the group with least accessibility to assistive technology. Moreover, it is apparent that the cost of assistive technology after eighteen months is offset by real cost savings for municipal and county councils and a reduced need for support from closely related persons and relatives. Together, the studies reported here show that persons with psychiatric disabilities do not have access to assistive technology to the extent they need although it is beneficial with assistive technology for this group. Most of the people interviewed in the cost-benefit study are of the opinion that only one tenth of the target group have assistive devices. The vision is that access to assistive technology should be as good for persons with psychiatric disabilities as for persons with other disabilities. Effects which should be expected are that day-to-day tasks become easier, which can lead to an improved quality of life for users and a reduced need for help from society and relatives. Access to assistive technology may also result in individuals starting to study, finding employment and retaining or increasing the hours of employment that they have.