Hello there,

Currently, we can import past paid invoices into QuickBooks Online. However, you'll have to receive payments for each invoice manually.

As a workaround, you can batch-record invoice payments for specific customers. I'll show you how:

1. Go to Sales and select Invoices.
2. Choose an invoice of a customer and click Receive payment.
   
   
    
3. On the Receive Payment page, scroll down to the Outstanding Transactions. Look for the imported invoices and put each checkmark on the check box.
   
   
    
4. Click Save and Close.

You may visit these links to guide you on how to categorize your transactions and reconcile your account flawlessly:

• Categorise and match online bank transactions in QuickBooks Online.
• Reconcile an account in QuickBooks Online.

The Community always welcomes you for further inquiries about transactions. Have a great day ahead!