How do I post a bounced check (NSF) for a Sales > Donor > Sales Receipt using QB Desktop?

I have the steps you need, acct9.

You can manually record the bounced check by following the steps below:

• Create an income account with a name: Bounced Checks Income.
• Create a bad check charge item with an Item Name: Bad Check Charge, Amount or %: Leave it at 0.00, Tax Code: Non-taxable, and select the Bounced Checks Income from the account drop-down.
• Record a journal entry  to reverse the original payment.

I've got these articles that include the steps in creating an account and adding an item:

• Create, edit, or delete account in QuickBooks
• Add, edit, and delete items

Once done, proceed in recording the journal entry by following these steps:

1. Go to Company > Make General Journal Entries.
2. In the first line, select the account used for the item and enter amount on the DEBIT column.
3. For the second line, select the bank account where the sales receipt was deposited to and then enter the amount on the CREDIT column.
4. Enter a note in the MEMO column to describe the transaction.
5. Select the donor's name under the NAME column.
6. Click Save and Close.

Please see this sample screenshot below:

You can also open this article to see the other option: Handle Non-Sufficient Funds (NSF) or bounced check from customers.

If there's anything else you need, please let me know and I'll get back to you as soon as I can. Thanks.