Using qbo and gopayment...does anyone know how to always have sales tax charged. Even if no invoice, no customer/item assigned.

Hello there, theprintstop-yah. 

QuickBooks can automatically do the sales tax calculations for you on your invoices and receipts for easy and accurate filings.  

You can read more and learn how to use the Automated sales tax feature in QBO.

Let me also share this article about filing your sales tax return and recording your tax payment in QBO. 

Let me know if you have other questions by leaving a reply below. I'll stick around if you need more help. Have a good one and stay safe!

I'm having a hard time explaining my question apparently.  Let me give this example: someone walks in the store and I want to charge them $50 on the gopayment app.  I don't want to choose an item or a customer - I just want a miscellaneous sale of $50.  This is done through the gopayment app by selecting "custom amount".  It automatically assigns "non-taxable" to this.  How do I automatically make everything I charge money for "taxable" without having to click extra buttons on the app??

Hello again, theprintstop-yah. I appreciate you getting back and providing detailed information about your concern.

In your first statement on this thread, you're right that you can charge sales tax by assigning to customer/product/service. Right now, the option to charge sales tax even without assignments is unavailable.

We recognize that each company has unique needs, and I can see how these features would benefit and empower your business. Since the feature you're looking for isn't currently an option, I encourage you to submit feedback to our Product Development Team. They look through submitted feedback for future updates and use those suggestions to develop changes for the product.

You may also want to visit our QuickBooks Blog. And be the first one to know about any updates that you'll find beneficial for your business. The QuickBooks Blog is our way of letting you know the latest features released and what the product team is working on. They update the site every time new information is available. 

If there's anything else you need help with, let me know by adding a comment. I'm more than happy to assist you. Have a great day!