If I have the online quickbooks version can I install a Point of Sale system on it?

It's my pleasure to assist you today, @rgvdecals. I'll provide some insight about integrating QuickBooks Point of Sale (POS) into QuickBooks Online (QBO).

At this time, we were unable to integrate QBO into POS. However, you can look for a third-party application that works best for your program. You can use customer reviews to help you decide which app is best suited for your business type and needs.

You can also follow the steps below to search for the app:

1. Log into QuickBooks Online.
2. Go to the Apps menu from the left pane.
3. Enter a keyword in the search bar, like "point of sale" or click the Browse category button.
4. Follow the on-screen steps to proceed.

Feel free to visit our website: QuickBooks Apps.

In addition, you can also seek self-help video tutorials on our video tutorials for QuickBooks Online to help you get your QuickBooks tasks done in no time.

I'll be around if you still have questions or concerns with POS integration. Don't hesitate to reply. Enjoy your day!

@rgvdecals 

If your company is located in the US, make sure to us QBO US version.

https://quickbooks.grsm.io/US

https://quickbooks.grsm.io/us-promo

Then you can explore some 3rd party POS to integrate with your QBO account

https://hikeup.com/?afmc=bk

http://phppointofsale.com/buy.php?ref=fiatlux

If you prefer to use QB POS, you will need a 3rd party app as the connector. One app starts from $40/month to manage up to 500 orders/month for 1 user.