How do I mark an invoice as paid when the customer paid through PayPal. My account has not been approved to accept payments.

I can walk you through receiving customer payments, akrissy02.

While PayPal is still approving your request, you can manually receive the invoice payment. Let me show you how:

1. Go to the +New button and click Receive Payment.
2. Select the customer and enter the correct payment dates.
3. Under the Deposit to account, select the account where the funds will be deposited to.
4. Check the invoice that is being paid and review the amount.
5. Click Save and close.

If you connected your PayPal account and the payment will download in your bank feeds, you can match it to the payment you created. This is to avoid duplicates. 

Check out these articles for more details in handling customer payments:

• Record invoice payments in QuickBooks Online
• Categorize and match online bank transactions in QuickBooks Online

Let me know if you have other questions. Feel free to post them here and I'll surely keep an eye on it. Take care!