Hello, @Jnflores92.
You can connect your Google account so you'd be able to send invoices from a Gmail address. I can guide you on how to do it.
- Enter the invoice details.
- Select the Email button.
- Click the From drop-down, choose to add Gmail Address.
- Hover your mouse to the Connect Google Account button.
- Type in your Google account's login credentials.
- Follow the on-screen instructions to complete the process.
Just a heads-up, this feature is still in beta which is available to some random customer's account. You can read through this article to learn more about adding products and services to an invoice and send it to your customers: Create invoices in QuickBooks Self-Employed.
Visit us here again if you have other questions about managing your invoices in QuickBooks. I'm always here to help.