Staying on top of bookkeeping and tax deadlines is one of the most important — and stressful — responsibilities for business owners and individuals alike. Missing a filing or payment deadline can result in penalties, interest, and unnecessary headaches.
To help you plan ahead, we’ve compiled a comprehensive 2026 bookkeeping and federal tax deadline calendar covering individuals, small businesses, employers, and tax professionals. Bookmark this page, save it to your favorites, or share it with your clients so 2026 stays compliant and stress‑free.
January 2026
- January 15 – Fourth quarter 2025 estimated tax payment due (Form 1040‑ES).
- January 31 – Forms W‑2 due to employees and 1099‑NEC due to independent contractors.
- January 31 – Form 940 (FUTA) due for employers.
- January 31 – Fourth quarter 2025 payroll tax return due (Form 941).
February 2026
- February 2 – Due date to file W‑2 and 1099 forms with the SSA and IRS (adjusted for weekend).
- March 2 – Last day for paper filing of certain information returns.
March 2026
- March 16 – S‑Corporation (Form 1120‑S) and Partnership (Form 1065) tax returns due.
- March 16 – Schedule K‑1s must be provided to shareholders and partners.
- March 31 – Deadline for electronic filing of most 1099 forms.
April 2026
- April 15 – Individual income tax returns due (Form 1040).
- April 15 – C‑Corporation returns due (Form 1120).
- April 15 – First quarter 2026 estimated tax payment due.
- April 15 – Deadline to request extensions (Form 4868 for individuals, Form 7004 for businesses).
May 2026
- May 15 – Form 990 due for calendar‑year nonprofit organizations.
June 2026
- June 15 – Second quarter 2026 estimated tax payment due.
- June 30 / July 31 – Form 5500 due for employee benefit plans (based on plan year end).
July 2026
- July 31 – Second quarter payroll tax return due (Form 941).
September 2026
- September 15 – Third quarter 2026 estimated tax payment due.
- September 15 – Extended deadline to file S‑Corp and Partnership returns.
October 2026
- October 15 – Final extended deadline to file individual and C‑Corporation tax returns.
- October 15 – Deadline for certain retirement plan actions tied to extended returns.
November 2026
- November 2 – Third quarter payroll tax return due (Form 941, adjusted for weekend).
December 2026
- December 10 – Employees must report November tips (Form 4070).
- December 31 – Final day to make retirement plan contributions for 2026.
- December 31 – Required Minimum Distributions (RMDs) must be taken if applicable.
- December 31 – Year‑end bookkeeping close and charitable contribution deadline.
January 2027 (Looking Ahead)
- January 15, 2027 – Fourth quarter 2026 estimated tax payment due.
Payroll & Ongoing Compliance Reminders
- Payroll tax deposits are generally due monthly or semiweekly, depending on your deposit schedule.
- Sales tax, state payroll filings, and local business taxes vary by jurisdiction and should be tracked separately.
Final Thoughts
Tax deadlines don’t have to be overwhelming when you plan ahead. A proactive bookkeeping system and a clear compliance calendar can save you time, money, and stress throughout the year.
Staying compliant is easier when your books are accurate, your payroll is timely, and your tax strategy is proactive—not reactive.
Ready to Stay Ahead in 2026?
If you’re tired of scrambling at tax time or worrying about missed deadlines, professional support can make all the difference.
We help business owners stay compliant year‑round with:
- Monthly bookkeeping & reconciliations
- Payroll and payroll tax compliance
- Quarterly estimated tax planning
- Year‑end tax preparation & strategy
👉 Call to Action: Schedule a free consultation today to review your current bookkeeping setup and make sure you’re prepared for every 2026 deadline—before penalties and stress pile up.
Disclaimer: This calendar reflects general federal tax deadlines. Some dates may shift due to weekends, holidays, or individual circumstances. Always confirm deadlines with the IRS or a qualified tax professional.
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