Hi, we are doing this for a CC not a check but we tried both ways and notice that QB MAC Desktop does NOT prompt us to enter a new name it actually fills in payable line with the existing customer name. I take it we should NOT accept that and create a new name since it's a vendor, right? That's really our whole question, maybe we didn't explain it correctly.
Glad to have you back, @mac2it,
When making donations or charitable contributions, you may set up the Non-profit organization you're donating to as a vendor, just as you would do for any other company expenses.
To add a Vendor in QuickBooks Mac:
- Select the Vendor menu from the top toolbar, and select Vendor Center.
- Click the Plus (+) menu at the bottom of the vendor list.
- Pick Add Vendor from the options.

QuickBooks doesn't allow multiple names in the system. Since the organization is already listed as a customer, add a slightly different or modified name in the Vendor Center.
Once added, record the credit card contribution as Bill or Check then use Credit Card for the Payment Method. You may also utilize the Enter Credit Card Charges under the Banking tab.
Let me know if you have other questions or need clarification about this topic, mention me or add a new comment below. I'm more than glad to share additional insights about QuickBooks and help any time. Have a wonderful day!