Filing taxes on time helps to avoid penalties, even if you are an employee, freelancer, or business owner. And its maintain the financial discipline and transparency under the Internal Revenue Service (IRS). To file the taxes, you need to understand the tax deadline for accurate filing and better year-end planning. It is very crucial to grasp when the tax deadline is because failing to meet it may cause the issuance of penalty charges and interest on the unpaid amounts. The tax deadline for the federal income tax return is normally April 15 of each year.