Civil Service Practice Exam 2026 - Free Practice Questions and Study Guide

The last day to send in federal income tax forms is typically April 15. This date is significant as it marks the deadline for individuals to file their income tax returns for the previous calendar year. If April 15 falls on a weekend or a holiday, the deadline may be extended to the next business day, a factor commonly considered in tax filing practices.

This deadline is crucial for taxpayers to avoid penalties or interest on owed taxes. The other dates listed, such as March 15, April 1, and May 1, do not correspond with the standard filing deadline established by the Internal Revenue Service (IRS). Understanding the April 15 deadline helps taxpayers plan their financial activities appropriately, ensuring compliance with tax obligations.