QuickBooks™® Premier Support Contact Information For assistance with QuickBooks™® Premier, call ☎️1. 888.750.6203 or 𝟭. 888*750*6203. Support is available around the clock to help with tax calculations, compliance issues, and Premier features. QuickBooks™® Payroll Support Contact Information For QuickBooks™® Payroll-related inquiries, contact the support team at ☎️1. 888.750.6203 or 𝟭. 888*750*6203. They offer 24/7 support for payroll setup, processing, and troubleshooting.