The Internal Revenue Service (IRS) reminds taxpayers from the areas of Louisiana, Mississippi and Alabama, most severely damaged by Hurricane Katrina, that the deadline for filing tax year 2004 and 2005 individual tax returns is October 16, 2006. No additional postponements or extensions are available for tax year 2004. An additional six-month filing extension to April 15, 2007, is available to affected taxpayers whose 2005 filing date was postponed from April 15, 2006, to October 16, 2006.