Before you file your 2011 federal income tax return in 2012, you should be aware of a few important tax changes that took effect in 2011. Check www.IRS.gov before you file for updates on any new legislation that may affect your tax return.

Due date of return. File your federal tax return by April 17, 2012. The due date is April 17, instead of April 15, because April 15 is a Sunday and April 16 is the Emancipation Day holiday in the District of Columbia.

New forms. In most cases, you must report your capital gains and losses on the new Form 8949, Sales and Other Dispositions of Capital Assets. Then, you report certain totals from that form on Schedule D (Form 1040). If you had foreign financial assets in 2011, you may have to file the new Form 8938, Statement of Foreign Financial Assets, with your return.