Can multiple payment types be accepted on an invoice? ie part check & part credit card

Yes, karlanllc-gmail-.

You can accept your customer's payments with multiple payment methods in QuickBooks Online. However, you have to apply it one at a time. 

Here's how:

1. Go to the + New menu and then select Receive payments.
2. Choose the name of your customer.
3. On the Payment method column, select Check.
4. Select the correct account from the Deposit to drop-down menu.
5. In the Amount received field, enter the payment received.
6. Choose the invoice you're recording the payment for.
7. Once done, click on Save and close.
   
8. Repeat the process when applying for the credit card payment.

For more details, please see this article: Record Invoice Payments in QuickBooks Online.

Additionally, I've added an article that'll help you deposit the payments in QuickBooks Online. This ensures the program matches your real-life bank record: Add the Funds to the Correct Accounts.

 If you have any other questions in mind, you can leave them below. I'll get back to you as soon as I can. Have a great rest of the day.

@karlanllc-gmail- 

Another option, consider having a 3rd party merchant service to integrate with your QBO. They offer a feature to match and reconcile transactions automatically.