Thanks for reaching out to us here. QuickBooks makes it seamless to edit your invoice so they can stand out to your customers. I can see the benefit of being able to send an invoice without a due date on it and I'll be happy to show you how to do that.
Here's how to remove the Due date option:
1. Click on the Gear icon and select Custom form styles.
2. Select the invoice template in question.
3. Click on the Content tab.
4. Scroll down and uncheck the Due date option under the Display tab.