Sales tax refers to the tax that needs to be paid when your company applies for a Sales Certificate. It is reported quarterly. When your company has sales business, it needs to collect the state's sales tax on behalf of the government and file quarterly, closing dates are March 20 (reported 12/1/february sales), June 20 (reported 3/4/may sales), September 20 (reported 6/7/august sales), December 20 (reported 9/10/november sales).

The sales tax rate varies from place to place, with 8.875 percent in New York City. Employers need to be reminded that once they apply for a sales license, they should start filing quarterly sales tax returns, even if they don't make any sales.