When is the last day you can send in federal income tax forms?

The last day to send in federal income tax forms is typically April 15. This date is significant because it marks the deadline for individuals to file their federal income tax returns for the previous tax year. By this date, taxpayers are required to submit their forms to the Internal Revenue Service (IRS) to avoid any penalties or interest that may accrue from late filing.

April 15 is established as part of the tax regulations in the United States, ensuring that individuals and businesses comply with the tax obligations annually. In some cases, if April 15 falls on a weekend or holiday, the deadline may be extended to the next business day; however, the standard deadline is firmly set at April 15 for most years.

This is important knowledge for individuals preparing for naturalization, as understanding civic responsibilities, including taxation, is a fundamental aspect of U.S. citizenship.