The Internal Revenue Service today announced a three-month tax filing and payment extension to Boston area taxpayers and others affected by Monday’s explosions.

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.

Under the relief announced today, the IRS will issue a notice giving 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, 2013. By law, interest, currently at the annual rate of 3 percent compounded daily, will still apply to any payments made after the April deadline.