New York Consolidated Laws, Tax Law - TAX § 495. Returns and payment of tax

(a) Every person on whom tax is imposed under this article shall, on or before the twentieth day of the month following each quarterly period ending on the last day of February, May, August, and November, respectively, file electronically with the commissioner a return on forms to be prescribed by the commissioner, showing the total amount of tax due in such quarterly period, and including such other information as the commissioner may require.

(b) Every person required to file a return under this section shall, at the time of filing such return, pay electronically to the commissioner the total amount of tax due for the period covered by such return.  If a return is not filed when due, the tax shall be due on the day on which the return is required to be filed.