10/08/2026
📅 UPCOMING TAX DEADLINES | OCTOBER–DECEMBER 2026
Staying ahead of important tax deadlines helps keep your business and personal tax obligations on track and helps avoid unnecessary penalties and interest.
Here are some key deadlines coming up:
🔹 October 13
Employees Who Work for Tips: If you received $20 or more in tips during September, report them to your employer.
🔹 October 15
Individuals: If you filed an automatic 6-month extension for your 2025 individual income tax return, your return and any remaining tax, interest, and penalties are due.
Corporations: Calendar-year C corporations that timely requested a 6-month extension must file their 2025 Form 1120 and pay any remaining tax, interest, and penalties.
🔹 October 31
Employers: Form 941 for the third quarter of 2026 is due, covering payroll taxes for wages paid July 1–September 30.
Businesses: Quarterly state sales tax returns and payments may also be due. Deadlines vary by state and filing frequency.
🔹 November 10
Employees Who Work for Tips: Report September? — Correction: If you received $20 or more in tips during October, report them to your employer.
🔹 December 10
Employees Who Work for Tips: If you received $20 or more in tips during November, report them to your employer.
🔹 December 15
Corporations: Calendar-year corporations should make their fourth installment of estimated income tax for 2026.
📌 Mark your calendar and don’t wait until the last minute! Tax deadlines can vary depending on your individual circumstances and filing requirements.
If you have questions about an upcoming deadline or need help staying compliant, Whittler & Hesters CPA Group is here to help.