Below is a list of toll free 800 numbers for TurboTax. Customer Service: 1-866-888-2402. 1  Thank you for calling TurboTax, I will help connect you to the best experts to answer your question.2  If you need help purchasing your TurboTax or want to check on the status of an order press one.elow is a list of toll free 800 numbers for TurboTax. Customer Service: 1-866-888-2402. 1  Thank you for calling TurboTax, I will help connect you to the best experts to answer your question.