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

The last day to send in federal tax forms is April 15. This date is significant because it is established by the Internal Revenue Service (IRS) as 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 adjusted to the next business day, but under normal circumstances, taxpayers should plan to have their forms submitted by this date to avoid penalties and interest.

Other dates provided do not align with the established tax filing deadline; for instance, March 31 is too early in the year, and May 1 is simply past the designated deadline. Similarly, April 1 does not comply with the IRS regulations regarding tax submissions. Understanding the importance of these deadlines helps ensure timely compliance with federal tax responsibilities.