WASHINGTON — The Internal Revenue Service today reminded Boston area taxpayers and others affected by the April 15 Boston Marathon explosions that their individual income tax returns and tax payments are due Monday, July 15.

This relief applies to all individual taxpayers who live in Suffolk County, Mass., including the city of Boston. It also includes victims, their families, first responders, others impacted by this tragedy who live outside Suffolk County and taxpayers whose tax preparers were adversely affected.

The relief gives eligible taxpayers until July 15, 2013, to file their 2012 returns and pay any taxes normally due April 15. No filing and payment penalties will be due as long as returns are filed and payments are made by July 15. By law, interest, currently at the annual rate of 3 percent compounded daily, will still apply to any payments made after the April deadline.

The IRS automatically provided this extension to anyone living in Suffolk County. Eligible taxpayers living outside Suffolk County must have claimed this relief by calling 866-562-5227 before filing a return or making a payment. Eligible taxpayers who receive penalty notices from the IRS can also call this number to have these penalties abated.

Eligible taxpayers who need more time to file their returns may receive an additional extension to Oct. 15, 2013, by filing Form 4868 by Monday, July 15.

Taxpayers with questions unrelated to the Boston tragedy should visit IRS.gov, or contact the regular IRS toll-free number at 800-829-1040.

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Upcoming Tax Dates

June 1 Wagering tax
File Form 730 and pay the tax on wagers accepted during April.

June 1 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in April.

June 10 Employees who work for tips
If you received $20 or more in tips during May, report them to your employer - Details

June 10 Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of May.

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 4 additional months to file - Details

June 15 Individuals
Make a payment of your 2015 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 second installment - Details

June 15 Corporations
Deposit the second installment of estimated income tax for 2015 - Details

June 15 Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in May.

June 15 Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in May.

June 25 Regular method taxes
Deposit the tax for the last 16 days of May.

June 29 Regular method taxes
Deposit the tax for the first 15 days of June.

June 30 Wagering tax
File Form 730 and pay the tax on wagers accepted during May.

June 30 Heavy highway vehicle use tax
File Form 2290 and pay the tax for vehicles first used in May.

June 30 Floor stocks tax for ozone depleting chemicals
(IRS No. 20). Deposit the tax for January 1, 2015.

View More Tax Dates