Tax Day deadline arrives Wednesday, IRS urges filing and payment on time

The fastest way to avoid extra costs was to file and pay by midnight Wednesday. For calendar-year filers, the 2025 federal individual income tax return was due April 15, 2026, and the Internal Revenue Service said taxpayers could avoid interest and some penalties by getting the return in and paying the full amount owed on time.

The IRS expected about 164 million individual income tax returns for tax year 2025, and it said most taxpayers were filing electronically. For anyone still scrambling, the agency said there was still time to file online and request direct deposit, a faster route for refunds than waiting on paper processing. The clock mattered because once the deadline passed, penalties and interest could begin accruing immediately on unpaid balances.

Taxpayers who needed more time to complete the paperwork had a fallback, but only if they acted by the deadline. An extension request filed by April 15, 2026, gave them until October 15, 2026, to submit the return. That extra time applied only to filing, not to payment, which meant anyone who owed money still had to pay by Wednesday to avoid added charges.

For people mailing returns, the IRS said a return counted as filed on time if it was properly addressed, had enough postage, was postmarked, and was deposited in the mail by the due date. That rule mattered for taxpayers who were heading to the post office at the last minute, because a late postmark could turn a close call into a penalty problem.

The agency had been warning for days that the filing window was closing. On April 3, it urged taxpayers to act now to file, pay, or request an extension, and on April 9 it repeated that the deadline was coming up fast. By Wednesday night, the choice was down to a few simple options: file the return, pay the bill, request the extension, or risk interest and penalties starting immediately.