From the NYS website: There will be two seven-day temporary exemption periods from State and certain local sales and use taxes beginning on Tuesday, August 30, 2005, and ending on Labor Day, Monday, September 5, 2005, and beginning on Monday, January 30, 2006, and ending on Sunday, February 5, 2006. Also to be noted usually this is only on purchases under $110 for clothing and footwear. It is up to each county to decide whether to collect local taxes during this week. Since I don't take advantage of these weeks as I should I can't recall if NYC collected local taxes during the last week, which was in January of this year.