How can I enter the address of an employee who live s in overseas into QBO? Company S-Corp is located in Virginia, but employee who is US citizen lives in overseas.

Hello, str_dsgn.

Thanks for dropping by in this thread again. I'll give some details when handling an overseas employee. 

We're unable to add a non-permanent US address (including the PO mailbox address) for QuickBooks Online Payroll. Forcing the program to accept the PO box will affect you and their taxes. 

You'll want to track their payroll and taxes outside of QuickBooks Online instead. I would also recommend contacting a tax advisor so they can guide you on handling an overseas employee.

Also, if you need to track their payroll checks made outside QuickBooks, you can create a journal entry. This article has all the details you need to get started: Manually enter payroll paychecks in QuickBooks Online.

Do you need help filing your annual forms or handling other payroll-related tasks? Check out our guides here: QuickBooks Online Payroll Taxes topic. 

I'll see you around again but if you have more questions, let me know. I'll give some guides and pointers to help you with your payroll or QuickBooks Online tasks.