Why does the tag field disappear under the category field when editing a register transaction?

Merry Christmas, @MesaCT. I'll be happy to help you sort this out so you can prevent the tag field from disappearing when editing a transaction in QuickBooks Online (QBO).

A possible reason why it disappears on your end may have something to do with your browser. Since QuickBooks is a cloud base program, know that temporary internet files like cache and cookies can affect your experience using QBO. Although these so-called Internet files speed up the loading process, too much can build up and cause operations to slow down or even stop working.

To get through this situation, I recommend freeing your browsers from those temporary internet data so you can access QuickBooks with a clean slate. I'll gladly input the steps below. To begin, here's how:

1. Restart your browser.
2. Log in to your account in an incognito or private browser and try to modify a transaction to check if you can still see the Tag field. You can use these keyboard shortcuts to launch a new private window:

Google Chrome: press Ctrl + Shift + N
Mozilla Firefox: press Ctrl + Shift + P
Safari: press Command + Shift + N

If it works on the private browser, you can go back to the regular browser and clear your browser's cache. Then see if you have the Tag field and if it's working well on your end. However, if the incognito window doesn't work, you can use another supported browser.

In addition, I'll be leaving this article about reconciling an account in QBO: Reconcile an account in QuickBooks Online.  

You can also visit this page about modifying a report and adding extra details to it in QuickBooks: Customize reports in QuickBooks Online.

As always, I'll be here in the Community space if you have any additional QuickBooks-related concerns or need help performing specific tasks in QuickBooks. Feel free to click the Reply button below. I'll make sure to get back to you as soon as possible. Take care and happy holidays!

Thanks for getting back to this thread, @MesaCT. I appreciate you for following the steps provided by my colleague above and let me route you to the right support so you can get through this and resolve your issue.

Since the suggested resolutions didn't work for your tags in the registers, I recommend contacting our Customer Care Team. They have the tools to pull up and look into your account securely to help you identify the cause of the issue and explain the components of how to fix it. 

Here's how to reach them:

1. Sign-in to your QuickBooks Online account. 
2. Go to Help. 
3. Click the Search tab and click Contact Us.
4. Enter your concern in the description box and select Continue.
5. Choose Start a chat or Get a callback.

To ensure you get on hold to our support team on time, I've added our support hours so you can set an available time to reach them out.

Furthermore, you can visit this link to guide you on what to do if QuickBooks doesn't match your bank statements after reconciling the accounts: Fix issues at the end of a reconciliation in QuickBooks Online.

You're always welcome to reach us again if you require further assistance with any QuickBooks-related concerns. The Community is here to help. Stay safe!