How Will I Know If I Need to File with a Certain State?
Most states require filing for any income or other payments which the employer withheld that state's income tax or any other applicable tax. Some states have agreements with other states for the exemption of withholding tax and some states require filing regardless of if the employer withheld tax or not. To be sure, check with the states in which you conduct business.
Last modified 26 Jul 2017 17:07 EST