Final deadline to file individual tax returns (with extension). (Forms 1040, 1040A, 1040EZ.)
Last day the IRS will accept an electronically filed tax return for the year 2013. If filing after October 15th, you’ll need to mail in your tax return for processing.
Final deadline to fund a SEP-IRA or solo 401(k) for tax year 2013 if you requested an automatic extension of time to file.