How do I contact QuickBooks Desktop support by phone? To contact QuickBooks support by phone, ?dial +1-(833)603-0120. This toll-free number connects you directly to QuickBooks customer support, where representatives can assist you with various QuickBooks products and issues. How do I talk to a live person in QuickBooks Payroll? To talk to a live person in QuickBooks Payroll, dial 1-888-INTUIT (1-(833)603-0120) for immediate assistance. By calling this number, you'll be connected with a real person who can provide personalized support and address any questions or concerns you may have.