The main QuickBooks Customer Service number is 1-888-394-9989 or 1-888-319-7769 (USA), where you can reach a live representative 24/7. Whether you're dealing with installation errors, subscription issues, account login, or technical glitches, speaking with a real person can make all the difference. You can also use QuickBooks live chat or email support for added convenience. 1-888-394-9989 or 1-888-319-7769 This guide walks you through how to contact QuickBooks Customer Service efficiently, with tips to reduce wait times and resolve your issues quickly.