• Select the Company Gear (located top upper corner)
• Select “Company Settings” under Settings header
• Select “Payments” under Settings”
• Select “Existing Accounts:” under Payments
• Click “Connect” button
• New Intuit login screen will open (see screenshot photo below)
• Sign in and follow the instructions

For accepting QuickBooks Merchant Online Payment feature, select QuickBooks payment learn more button

QuickBooks Payments Get paid more ways, fast!
Take credit card or bank transfers
Accept payments through QuickBooks, emailed invoices, and mobile
QuickBooks automatically updates when you’re paid