With QuikBooks Online can I write and print an invoice if there is no internet connection?

Thanks for getting in touch with the Community, securitylocksvc.
 

I can certainly understand how an ability to create and print invoices without an internet connection could be useful and have submitted a suggestion about it as of today.
 

You can also submit your own feature requests while signed in.
 

Here's how:

1. Use the Gear icon, then go to Feedback.
2. Enter your suggestion(s) in the Have feedback? window.
3. If necessary, attach a file with your Camera icon.
4. Select Next.
   
   

Your feedback's definitely valuable to Intuit. It will be reviewed by our Product Development team and considered in future updates. You can stay up-to-date with the latest news about your product by reviewing Intuit's Product Updates webpage.
 

You also have the option of checking our QuickBooks App Store for apps which may be able to help you accomplish what you're looking to do.
 

For the time being, you'll need to have an internet connection to create and print invoices. I'd recommend using a connection with speeds of at least 1.5 Mbps to 3Mbps or higher.
 

I've also included a detailed resource about system requirements which may come in handy moving forward: System requirements
 

If there's any additional questions, I'm just a post away. Have an awesome Friday!