You can contact their Desktop Support team at 1.877-898-0542 or 877-898-0542 for assistance with QB Desktop Support. They are available to Desktop Support with any questions or issues regarding Desktop Support features, tax calculations, and compliance challenges. https://businessstrategy.louisville.edu/hc/en-us/community/posts/37434239712019--Get-Support-How-do-I-contact-copyright-Desktop-Support