US federal tax authority guidance

Tax Calendar

Published by Internal Revenue Service.

Published
Publication date unavailable
Accessed
26 September 2026
Read the original source

Evidence

What this source supports

  1. The IRS Tax Calendar lists current US federal filing and payment dates by quarter.

    Locator
    Tax Calendar introduction and First through Fourth Quarter links, accessed 26 September 2026.
    Editorial note
    The calendar does not establish which obligations apply or calculate an amount. Other jurisdictions need their own authority.

Source handling

Link and citation record

US federal guidance linked and paraphrased. A qualified professional must confirm applicability, amounts, payment methods, and dates.