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Important Dates

Individuals

January 17
Individuals. Make a payment of your estimated tax for 2011 if you did not pay your income tax for the year through withholding (or did not pay in enough tax that way). Use Form 1040-ES. This is the final installment date for 2011 estimated tax. However, you do not have to make this payment if you file your 2011 return (Form 1040) and pay any tax due by January 31, 2012.

January 31
Individuals who must make estimated tax payments. If you did not pay your last installment of estimated tax by January 17, you may choose (but are not required) to file your income tax return (Form 1040) for 2011 by January 31. Filing your return and paying any tax due by January 31 prevents any penalty for late payment of the last installment. If you cannot file and pay your tax by January 31, file and pay your tax by April 17.

February 15
Individuals. If you claimed exemption from income tax withholding last year on the Form W-4, Employee's Withholding Allowance Certificate, you gave your employer, you must file a new Form W-4 by this date to continue your exemption for another year.

April 17
Individuals. File a 2011 income tax return (Form 1040, 1040A, or 1040EZ) and pay any tax due. If you want an automatic 6-month extension of time to file the return, file Form 4868, Application for Automatic Extension of Time To File U.S. Individual Income Tax Return. For more information, see Form 4868. Then, file Form 1040, 1040A, or 1040EZ by October 15.

Household employers. If you paid cash wages of $1,700 or more in 2011 to a household employee, you must file Schedule H. If you are required to file a federal income tax return (Form 1040), file Schedule H with the return and report any household employment taxes. Report any federal unemployment (FUTA) tax on Schedule H if you paid total cash wages of $1,000 or more in any calendar quarter of 2010 or 2011 to household employees. Also, report any income tax you withheld for your household employees. For more information, see Publication 926.

Individuals. If you are not paying your 2012 income tax through withholding (or will not pay in enough tax during the year that way), pay the first installment of your 2012 estimated tax. Use Form 1040-ES. For more information, see Publication 505.

June 15
Individuals. If you are a U.S. citizen or resident alien living and working (or on military duty) outside the United States and Puerto Rico, file Form 1040 and pay any tax, interest, and penalties due. Otherwise, see April 17. If you want additional time to file your return, file Form 4868 to obtain 4 additional months to file. Then, file Form 1040 by October 15.

However, if you are a participant in a combat zone, you may be able to further extend the filing deadline. See Publication 3, Armed Forces' Tax Guide.

Individuals. Make a payment of your 2011 estimated tax if you are not paying you income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the second installment date for estimated tax in 2012. For more information, see Publication 505.

September 17
Individuals. Make a payment of your 2012 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the third installment date for estimated tax in 2012. For more information, see Publication 505.

October 15
Individuals. If you have an automatic 6-month extension to file your income tax return for 2011, file Form 1040, 1040A, or 1040EZ and pay any tax, interest, and penalties due.