Courtesy Withholding in Zenefits Payroll
Zenefits Payroll does not support an opt out of courtesy withholding. This means you will need to be registered in every state that you have an employee either living or working in. If you have a state employees live in but do not work in, then you will only need to register for withholding (income) tax, not unemployment taxes in that state.
Please note that registering to pay payroll income tax does not necessarily obligate your company to register and pay business or sales tax in that state.
There is more information about which states are currently supported by Zenefits Payroll here.
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