Federal Holidays
January 1	New Year's Day
January 19	Birthday of Martin Luther King, Jr.
January 20	Inauguration Day
February 16	Washington's Birthday
April 16	District of Columbia Emancipation Day
May 25	Memorial Day
July 3	Independence Day
September 7	Labor Day
October 12	Columbus Day
November 11	Veterans' Day
November 26	Thanksgiving Day
December 25	Christmas Day
E-File
January 16	First day to electronically file
January 18	First IRS acknowledgements of e-filed returns
April 15	Last day to e-file timely returns
April 15	Last day to e-file timely extension requests
April 20	Last day to retransmit rejected timely filed returns and extensions
June 15	Last day to e-file timely extension request for overseas taxpayers
October 15	Last day to e-file returns that received 6-month extension
October 20	Last day to retransmit rejected late or extension returns
Individuals
January 12	Report tips of $20 or more to employer
January 15	Make last 2008 estimated tax payment
February 10	Report tips of $20 or more to employer
March 10	Report tips of $20 or more to employer
April 10	Report tips of $20 or more to employer
April 15	Due date to file calendar year 2008 tax returns or request an automatic 6-month extension of time to file. Pay any tax that is due, even if you file a 6-month extension of time to file.
April 15	First 2009 estimated tax payments due
May 11	Report tips of $20 or more to employer
June 10	Report tips of $20 or more to employer
June 15	Second 2009 estimated tax payments due
July 10	Report tips of $20 or more to employer
August 10	Report tips of $20 or more to employer
September 10	Report tips of $20 or more to employer
September 15	Third 2009 estimated taxpayments due
October 13	Report tips of $20 or more to employer
October 15	Final due date to file calendar year 2008 tax returns for taxpayers who received a 6-month extension
November 10	Report tips of $20 or more to employer
December 10	Report tips of $20 or more to employer