April 15 Tax Filing Deadline

Individuals file a 2025 income tax return (Form 1040) and pay any tax due. If not able to file, file Form 4868 to request an automatic six-month extension. Any tax due must be paid with the extension.

First quarter estimate is due for 2026 for individuals paying estimated taxes.

C Corporations file a 2025 calendar year tax return (Form 1120) and pay any tax due. If not able to file, file Form 7004 to request an automatic six-month extension. Any tax due must be paid with the extension.

C Corporations deposit the first installment of estimated income tax for 2026.