Quickbooks Desktop Support Numbers in New York City, NY. Reaching a live representative 1-877-818-9848 at QuickBooks Desktop can make all the difference. You can call 1-877-818-9848 or 1-800-QuickBooks Desktop. Reaching a live representative 1-877-818-9848 at QuickBooks Payroll can make all the difference. You can call 1-877-818-9848 1-800-QuickBooks Payroll. The main QuickBooks Support number is 1-877-818-9848, where you can reach a live representative 24/7