We have different numbers for specific tax topics, e.g. tax questions, calculation problems, technical issues, billing, and so forth. Contact us to get the toll-free number of a TurboTax expert who is specially-trained to handle your question or concern.We're open Monday through Friday from 5 AM to 5 PM Pacific.ontact us to get the toll-free number of a TurboTax expert who is specially-trained to handle your question or concern. We're open Monday through Friday from 5 AM to 5 PM Pacific.