What is the last day to submit federal income tax forms?

The last day to submit federal income tax forms in the United States is April 15. This date is significant as it marks the deadline by which individuals and businesses must file their annual income tax returns with the Internal Revenue Service (IRS). Failing to file by this date can result in penalties and interest on any owed taxes.

April 15 is set as a standard deadline, although it may shift to the next business day if it falls on a weekend or a holiday. This consistency allows taxpayers to plan their finances accordingly and remembers the date each year as a key time for tax compliance.

The other dates do not reflect the established deadline for filing federal income tax returns. April 1 is too early in the tax season, as it does not allow sufficient time for individuals to prepare and gather necessary financial documentation. April 30 and May 15 are also later than the official deadline and would not be valid for timely submissions of tax forms.