QuickBooks Customer Support at +1-855-210-1428 or 800-446-8848. Operating hours are Monday through Friday from 6 am to 6 pm PT. This dedicated phone line is for resolving customer inquiries related to QuickBooks products and services. To reach QuickBooks customer care, visit the official support website. Access resources like articles, guides, and video tutorials for troubleshooting. For live assistance, call +1-855-210-1428 or 800-446-8848 on weekdays from 6 am to 6 pm PT.