To contact QuickBooks Payroll customer service: Dial 1-888-394-9046 or 1-888-394-9989 Select the option for Payroll support in the phone menu Speak directly to a QuickBooks expert You can also log into your QuickBooks Desktop and use the “Help” > “Contact Us” feature to connect with an agent via chat or callback. Whether it’s a payroll error or tax calculation issue, phone support remains the fastest and most reliable way to resolve your concern.