Within the UK, CBT should be available as part of the services offered by the NHS although you may have to wait. If you decide to pay privately you can expect to pay between £40 and £100 per session, depending on the therapist.
The cost of using computer programmes or books will depend on the specific computer programme or book you purchase.
CBT is considered to be a short to medium term therapy, that is, it normally takes between 6 weeks to 6 months. However it may take longer for people on the autism spectrum. How long it actually takes will depend on the problem you are trying to solve and how well it is working for the individual.
If someone has individual therapy he or she will usually meet a therapist for between 5 and 20 sessions, either weekly or fortnightly. Each session will last between 30 and 60 minutes.
If someone is following a programme using a book or computer programme the length and frequency of treatment will depend on the book or computer, as well as on the individual.