Welcome to the Community, @lkeyser.

When setting up an employee's home address, all states should appear from the drop-down. Let's perform some troubleshooting steps to get this fixed and get you back to working order.

There are times that the browser stores frequently-accessed data, thus causing websites, like QuickBooks Online (QBO), to act weirdly. Let's try logging in to your QBO account using a private browser.

To use a private browser, here's how:  

• For Google Chrome: Ctrl + Shift + N
• For Mozilla Firefox: Ctrl + Shift + N
• For Internet Explorer: Ctrl + Shift + N
• For Safari: Command + Shift + N

Once logged in, go back and try to select the state of your employee again to double-check.

If this works, it means that you need to clear the browser's cache so the system can start fresh.

If they get the same result while using a private browser, I recommend switching to a different one. 

You might want to read this article to know more about multistate employment: About multistate employment payroll situations.

Please know you can continue to reach me here with any additional questions. Thanks for coming to the Community, wishing you continued success.