Hello @kknigge4,
We don't have an option to set an account as default. Though, you can create an invoice transaction using the correct A/R account. Let me walk you through how.
- Go to Customers, then Create Invoices.
- Select the correct account in the Account drop-down.
- Enter the invoice details.
- Click Save & Close.
The next time you create an invoice QuickBooks will remember your previous account. Please see this article for details: Create an invoice in QuickBooks Desktop.
I'm also attaching our page about income and expenses for future reference.
Should you need help with anything else, please reach out anytime. The Community has your back. Have a great day.