How is the Employer Account Number for the Unemployment Insurance changed

Glad to see you here in the Community.

I got steps you can follow to find out why does the Employer Account Number for the Unemployment Insurance was changed.

Since QuickBooks Online allows multiple users to access the same account, it's possible that someone else with access to your QuickBooks Online account made the changes without your knowledge. So it is important to keep track of who is making changes to the account. We can validate it by utilizing the audit log. 

Here's how:

1. Go to the Gear icon then select Audit Log.
2. Click on Filter.
3. Choose the appropriate User, Date, or Events to narrow the results.
4. Select Apply.

Should you need to update your State Unemployment Insurance (SUI) rate, refer to this article: Update your SUI rate in QuickBooks Online.

Please don't hesitate to notify us by hitting on the reply button if you have additional questions about your employer's SUI account number. Keep safe.

How do I get to the article “Update your SUI rate in QuickBooks Online”?

Hello there, @Pawnplanet.

I'll share the article for your reference to update SUI rate. 

Your SUI rate depends on your state. This rate is specific to your company. Until you file unemployment taxes for a specific amount of time, your state assigns you a new employer rate if you're a new employer.

You must adjust your SUI rate in payroll whenever it changes. Your SUI tax liability remains accurate as a result.

You can read this article for the detailed steps:  Update your State Unemployment Insurance (SUI) rate.

Additionally, here is an article for future reference to process payroll: Create and run your payroll.

Feel free to click the Reply button below if you need further assistance in updating your SUI rate. I'm always here to help.