An ulcer of the jejunum occurring after gastroenterostomy. The American HeritageÂ® Stedman's Medical Dictionary Copyright Â© 2002, 2001, 1995 by Houghton Mifflin Company.
These are the quarterly estimated tax payment due dates for calendar year 2015: April 15, 2015: Not only is this the income tax due date, itâs the due date for your first quarterly estimated tax payment.
Time Frame. Federal income tax is paid once per quarter. Your first payment is due by the end of the first quarter in which you earn taxable income. For example, if your business first generates income between Jan. 1 and April 1, your first tax payment is due by April 15. If it first earns income between April 1 and May 31, payment is due by June 15; between June 1 and Aug. 31, by Sept. 15; and between Aug. 31 and Jan. 1, by Jan. 15.