Thanks for joining in this thread, blumtn.
I'm here to help and provide you with some information about adding a due date to payment template in QuickBooks.
Right now, adding a due date to payment template is unavailable in QuickBooks Desktop. However, there's a variety of templates that you can customize in QuickBooks such as invoices, estimates, credit memos, sales orders, purchase orders, sales receipts, statements, and packing slips.
I can see how important it is to customize the payment template to add the due date. I'll be sure to take note of your suggestion about this option.
You may find this article helpful: https://quickbooks.intuit.com/community/Help-Articles/Use-and-customize-form-templates/m-p/207841.
For additional help, feel free to reach out to our QuickBooks Desktop Support. You can get our most updated contact number here:
Feel free to post a reply below if you need more help with customizing a template in QuickBooks Desktop.