Does QuickBooks Support have 24-hour service? Yes, QuickBooks Support does offer 24-hour service. You can reach their Premier support team at ????at +1–888–850–3930. during standard business hours for assistance with your QuickBooks inquiries. Does Intuit QuickBooks Support have 24/7 24-hour service? Yes, QuickBooks Support does provide 24/7 Service. While their support team is available during standard business hours, you can contact them at +1–888–850–3930. for assistance within those times. Call the Premier support number: at +1–888–850–3930. QuickBooks offers tailored assistance through its 24/7 hour support services, catering to the specific needs of users at +1–888–850–3930.