Skip to main content
Skip to footer
Staples | 2004-2005 Tax Calendar

2004–2005 Tax Calendar

Keep up with important tax dates all year long. From estimated tax payments to extension filing deadlines, you'll find all the dates you need to know by clicking here.

2004 tax dates and deadlines


December 31
  • Deadline for establishing many self–employed retirement plans.


  • Last day to contribute to a charity.

2005 tax dates and deadlines

You can find any of the below forms at the IRS Web site. Simply type in the number of the form you want in the field marked "Search Forms and Publications for" on the left side of the IRS home page.

January 15
  • Individuals: Make the fourth payment of your 2004 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.
February 2
  • W–2s are due from your employer. Forms 1099 are due from payers of interest, dividends and other specified types of income.


  • You should file your 2004 income tax return if you did not pay your last installment of estimated tax by January 15, 2005. Filing your return and paying any tax due by February 2 prevents any penalty for late payment of the last installment.
February 16
  • If you were exempt from income tax withholding for 2004, you must file a new Form W–4 by today to continue your exemption for 2005.
April 15
  • Tax returns due.


  • Last day to file for an extension. Contact H&R Block and let them file the extension, or file Form 4868, Application for Automatic Extension of Time To File. With an extension, your new deadline will be August 15, 2005.


  • Last day to set up an IRA or make 2004 IRA contributions even if you get an extension.


  • Individuals: Make the first payment of your 2005 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.
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.


  • If you want additional time to file your return, file Form 4868 to obtain two additional months to file. Then file Form 1040 by August 16. If you still need additional time, file Form 2688 to request an additional two months as soon as possible so that your application can be acted on before August 16. However, if you are a participant in a combat zone you may be able to further extend the filing deadline.


  • Individuals: Make the second payment of your 2004 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.
August 15
  • If you filed for an extension, file your return by today and pay any tax, interest, and penalties due.


  • Additional two–month extension: File Form 2688, Application for Additional Extension of Time To File. It must be postmarked today. Caution: This extension is not automatic. You must have a valid reason for needing this extension. If your second extension is approved, your new tax filing deadline is October 15.
September 15
  • Individuals: Make the third payment of your 2004 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.
October 1
  • Deadline for establishing a SIMPLE IRA.

Content provided by H&R Block. ©2003.