Thanks for joining this thread, @kbulger.

You can create a recurring invoice for each specific date and just make sure to input the end date if you don't want QuickBooks Online (QBO) to create the transaction again.

Here's how:

1. Go to the +New and select Invoice.
2. Enter the necessary details and click the Make recurring button.
3. Enter the Template name, Type, specific day to create an invoice in advance, etc. 
4. Input a Start date, for example, 1/1/21, 4/1/21, 6/1/21. 
5. Then, click the End drop-down arrow and choose By.
6. Input the End date.
7. Hit Save template. 

For more info about creating a scheduled invoice in QBO, please visit this article: Schedule recurring transactions created with a template. 

Here's a great article that you may open to help manage your recurring transactions in QBO. 

Keep me posted if you have any other concerns when scheduling invoices in QBO. I'm always here to help. Have a great day ahead.