Taxpayers who requested an extension will have until Monday, Oct. 17, to file a return. Not everyone has to ask for more time, however. Disaster victims, taxpayers serving in combat zones and those living abroad automatically have longer to file.

An extension of time to file will also automatically process if taxpayers paid all or part of their taxes electronically by this year’s original due date of April 18. Although taxpayers can file up to six months later when they have an extension, taxes are still owed by the original due date.

Here’s more about those who get automatic extensions:

Disaster victims

Victims of the December 2021 tornadoes and flooding in Arkansas, Illinois, Kentucky and Tennessee have until May 16, to file their 2021 returns and pay any tax due, as do victims of Colorado wildfires and straight-line winds that began Dec. 30. In addition, victims of severe storms, flooding and landslides that began on Feb. 4 in Puerto Rico will have until June 15, to file and pay.

The IRS automatically provides filing and penalty relief to any taxpayer with an IRS address of record located in a federally declared disaster area when at least one area qualifies for FEMA’s Individual Assistance program. Ordinarily, this means that taxpayers need not contact the IRS to get disaster tax relief.

This relief also includes more time for making 2021 contributions to IRAs and other plans and making 2022 estimated tax payments. In some cases, relief is also available to people living outside the disaster area if, for example, they have a business located in the disaster area, have tax records located in the disaster area or are assisting in disaster relief. For details on all available relief, visit the Around the Nation page on IRS.gov.

Combat zone taxpayers

Military service members and eligible support personnel serving in a combat zone have at least 180 days after they leave the combat zone to file their tax returns and pay any tax due. This includes those serving in Iraq, Afghanistan and other combat zones. A complete list of designated combat zone localities can be found in Publication 3, Armed Forces’ Tax Guide, available on IRS.gov.

Combat zone extensions also give affected taxpayers more time for a variety of other tax-related actions, including contributing to an IRA. Various circumstances affect the exact length of the extension available to taxpayers. Details, including examples illustrating how these extensions are calculated, are in the Extensions of Deadlines section in Publication 3.

Taxpayers outside the United States

U.S. citizens and resident aliens who live and work outside the U.S. and Puerto Rico have until June 15, to file their 2021 tax returns and pay any tax due.

The special June 15 deadline also applies to members of the military on duty outside the U.S. and Puerto Rico who do not qualify for the longer combat zone extension. Affected taxpayers should attach a statement to their return explaining which of these situations apply.

Though taxpayers abroad get more time to pay, interest — currently at the rate of 4 percent per year, compounded daily — applies to any payment received after this year’s April 18 deadline. For more information about the special tax rules for U.S. taxpayers abroad, see Publication 54, Tax Guide for U.S. Citizens and Resident Aliens Abroad, on IRS.gov.