Important Dates Berlino HotelYou should take the action indicated on or before the dates listed.Saturdays, Sundays, and legal holidays have been taken into account,but statewide holidays have not. A statewide legal holiday delays adue date only if the IRS office where you are required to file islocated in that state. Due dates for deposits of withheld income taxes, social securitytaxes, and Medicare taxes are not listed here. For these dates, seePublication 509,Tax Calendars for 2000. Malmo hotel roomsFiscal year taxpayers.Generally, the due dates listed apply, whether you use a calendaror a fiscal year. However, if you have a fiscal year, refer toPublication 509for certain exceptions that may apply to you.