| • | Filing Deadline: April 15, 2026, is the deadline to file or request an extension using Form 4868. |
| • | Payment Deadline: If you owe taxes, payment is due by April 15, 2026, even if you file an extension. |
| • | Extension: Filing a request for an extension gives you until October 15, 2026, to file your return, but you must still estimate and pay what you owe by April 15. |
| • | Postmark Rule: If mailing, your return is considered on time if it is postmarked on or before April 15. |
| • | Estimated Tax: The first quarterly estimated tax payment for 2026 is also due on April 15, 2026. |