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

The correct answer is April 15, which is the traditional deadline for filing federal income tax returns in the United States. This date is significant because it marks the end of the tax season for individuals who must file their annual income taxes. Each year, the Internal Revenue Service (IRS) sets this date, and it generally remains consistent unless it falls on a weekend or a holiday, in which case the deadline may be extended.

This deadline is crucial for taxpayers, as filing on time can help avoid penalties and interest on any taxes owed. It ensures that individuals are in compliance with federal tax laws and allows the IRS to process records efficiently.

Other choices, like March 31, April 30, and May 1, do not align with the established federal income tax filing deadline, making April 15 the clear choice for the date by which most individuals must file their tax returns.