Hello there, tony15.

Thanks for taking the time to reach out to us. Let me help walk you through on how to remove the auto-correct in QuickBooks Online (QBO). 

QBO doesn't have the built-in auto-correct feature. To remove this, you'll need to turn it off on your browser's settings. 

For Internet Explorer, here's how:

1. Click on Tools, and go to Internet Options.
2. Select the Programs tab.
3. Click Manage add-ons.
4. In the left-hand column, click Spelling Correction.
5. Scroll to the bottom of the window and uncheck the box beside Enable spelling correction.
6. Click Close. 

For Google Chrome, you can check this article on how to disable the built-in Spell checker. 

By following the steps above, the auto-correct should now be disabled. Don't hesitate to leave a comment below if you have additional questions about the auto-correct. I'll be around to help.