Practical Financial Guides
2026 Federal Tax Calendar
Key 2026 federal dates to discuss with your tax advisor:
January 15, 2026 — Final 2025 individual estimated-tax installment
February 2, 2026 — W-2 and information-return deadlines
March 16, 2026 — Calendar-year partnership and S corporation returns
April 15, 2026 — Individual federal returns and first 2026 estimated-tax installment
June 15, 2026 — Second 2026 individual estimated-tax installment
September 15, 2026 — Third installment and extended partnership returns
October 15, 2026 — Extended individual federal returns
January 15, 2027 — Final 2026 individual estimated-tax installment
Always verify current deadlines at IRS.gov; requirements vary by jurisdiction and relief guidance.
2027 FEDERAL TAX CALENDAR — IRS DRAFT
The IRS has released a draft 2027 Publication 509. Dates remain subject to change until the IRS issues the final publication.
January 15, 2027 — Final 2026 individual estimated-tax installment
February 1, 2027 — W-2 and applicable information-return deadlines
March 15, 2027 — Calendar-year partnership and S corporation returns
April 15, 2027 — Individual federal returns and first 2027 estimated-tax installment
June 15, 2027 — Second 2027 individual estimated-tax installment
September 15, 2027 — Third installment and extended partnership and S corporation returns
October 15, 2027 — Extended individual federal returns
Source: IRS Publication 509 (2027 draft, dated August 24, 2026). Verify final dates at IRS.gov/Pub509 before relying on this calendar.
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This page provides general educational information, not individualized accounting, tax, legal, investment, or financial advice. Verify deadlines and requirements with the IRS and relevant state or local authorities, and consult an appropriate professional regarding your circumstances.
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