Thanks for joining us here, @ttapp01.

I'll guide you on how to add the subtotal item to your invoices. QuickBooks Online has the option to add a subtotal after each item on your invoices.

Here's how:

1. Go to +New.
2. Choose Invoice.
3. Enter your invoice details. Then, scroll down and select the Add subtotal button.
4. Click Save and close.

I'm also attaching this link in case you need help managing customer-related tasks. It has our general customer topics with articles: Sales and Customers.

Please know that you're always welcome to swing by anytime if you still have questions or concerns with invoices. I'll be here to help. Take care and have a nice day ahead.