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Tax Calendar

A common question people ask is, when are taxes due, or when do I file taxes? Use the brief income tax calendar below to help you navigate the upcoming tax year. Whenever possible, you should take action before the listed due date. If you're late, you may have to pay a penalty as well as interest on any overdue taxes.

First quarter 2018 (January - March)

January 16 (first business day after January 15)

Final installment of your 2017 estimated tax payments is due if you make these payments. However, you do not have to make this payment if you file your 2017 return (Form 1040) and pay any tax due by January 31, 2018. If you follow a fiscal year, see below.

January 31

  • File your income tax return (Form 1040) for 2017 if you did not pay your last installment of estimated tax by January 16. Filing your return and paying any tax due by this date prevents any penalty for late payment of the last installment.

February 15

If you claimed exemption from income tax withholding last year on the Form W-4 you gave your employer, you must file a new Form W-4 by this date to continue your exemption for another year.

Second quarter 2018 (April - June)

April 17 (first business day after April 15)

Emancipation Day in Washington, D.C. falls on Monday, April 16, delaying the tax deadline until April 17.

  • 2017 income tax return is due along with any tax payments. Use Form 1040, 1040A, or 1040EZ.
  • Extension. Last day to obtain an automatic six-month extension of the time to file the return. File Form 4868, Application for Automatic Extension of the Time to File U.S. Individual Income Tax Return. Then file Form 1040, 1040A, or 1040EZ by October 15.
  • Estimated tax. If you're not paying your 2018 income tax through withholding (or will not pay in enough tax during the year that way), pay the first installment of your 2018 estimated tax. Use Form 1040-ES. For more information, see IRS Publication 505, Tax Withholding and Estimated Tax. 
  • IRAs. Last day to make a 2017 contribution to your Individual Retirement Account or Roth Individual Retirement Account. Contributions may be tax-deductible, if you qualify. You should make your IRA contribution as early in the year as possible, though, to make maximum use of tax-deferred growth. For more information about IRAs, visit our IRA Center.

June 15

  • Estimated tax. Second installment date for estimated tax in 2018.
  • This is the last day to file your 2017 income tax return, or file Form 4868 for an automatic four month extension, if you are living and working (or on military duty) outside the United States or Puerto Rico.

Third quarter 2018 (July - September)

September 17 (first business day after September 15)

Third installment date for estimated tax in 2018.

Fourth quarter 2018 (October - December)

October 15

If you filed for an automatic six-month extension, your 2017 income tax return is due.

December 31

  • Last day for charitable contributions to be eligible on your 2018 tax return.
  • Last day to make a family gift for 2018.
  • Last day to take a required minimum distribution (RMD) if you are over age 70 ½ before 2018.

Fiscal year taxpayers

Form 1040 is due on the 15th day of the fourth month after the end of your tax year.

Estimated tax payments are due on the 15th day of the fourth, sixth, and ninth months of your tax year and on the 15th day of the first month after your tax year ends.

If any of these dates fall on a weekend or holiday, the due date is the next business day.