QB has incorrectly paid an employee wrong SMP. Employee is due about £500. How do I pay this to them and submit a new EPS to HMRC as we have a bill outstanding for error?

Let me route you to the department that can help you further about opening a journal entry, @dave198.

Our Customer Care team helps you modify your payroll. I'll guide you on how to reach them.

Here's how:

1. Log in to your QuickBooks Online company.
2. Go to Help (?) and select Contact Us.
3. Enter your concern, then click Let's Talk.
4. Choose a way to connect with us:

• Start a chat with a support expert.
• Get a callback from the next available expert.

Feel free to visit our Payroll page for more insights about managing payroll transactions. 

Let me know if you need additional assistance managing payroll in QuickBooks Online. I'm always here to help. Have a great day.