To speak with QuickBooks Payroll support, dial their toll-free number at 1-855-200-0590. When you call, you’ll be directed to an automated system. Follow the prompts to select the option for QuickBooks Payroll support. This will connect you with a knowledgeable representative who can assist you with any issues or questions related to QuickBooks Payroll software. Be prepared to provide details about your specific problem or inquiry to expedite the resolution process.