I can help you with that, @Big Dog 100. 

QuickBooks Online (QBO) provides the option to create and customize recurring transactions such as invoices. Since you already have an existing template that you wish to use for immediate invoicing, you can just easily make use of this manually without modifying the date to set it in advance. 

Here's how: 

1. Select the Gear icon and select Recurring transactions in the Lists column. 
2. Search and select your desired template. 
3. In the Action column, click on Use. 

See the screenshot below for visual reference:

I'm leaving this article for future reference in receiving invoice payments in QuickBooks: Record invoice payments in QuickBooks Online. 

Additionally, you can set up automated reminders for your customers when your invoices are due. This feature can help you get paid faster and reduce the number of overdue payments. 

You can utilize the reply button below if you have further questions about recurring transactions in QBO. The Community is always here to support you. Keep safe.