Company is registered in NJ. A full-time employee is a FL resident working from home only. She never visit NJ in any way. Should I with hold NJ state tax, family leave?

Hello there, @info-intuit-joym. I'm here to share some details on how we can resolve this issue.

Since your concern involves agreement between 2 states, you'll need to contact the state agency to make sure you are guided with how your employee should be set up in QuickBooks Online Payroll.

You can refer to this article on how you can access your state agency websites: Payroll Tax Compliance Links

Additionally, if you want learn more on the things you’ll need to do to set up your employees and new state(s) in your payroll product, here's an article: Set up employees and payroll taxes in a new state.

I'll be around if you need clarification on how you can manage you state taxes. I'm happy to help. Take care!