What is the QuickBooks Customer Service Phone Number? The QuickBooks Customer Service Phone Numbers are (844-222-0805) and (844)-879-7860. For any QuickBooks inquiries and support, these numbers connect you to a customer service representative. How do I contact QuickBooks Payroll Support? For payroll-related queries or support, call the QuickBooks Payroll Support Numbers at (844-222-0805) or (844)-879-7860. The payroll support team can help with payroll setup, management, tax calculations, and more.