November 2025 tax and compliance deadlines

As the year quickly wraps up, it’s time to get your firm in order with regard to software options for the new year and keeping up with any legislation. While you’re doing that, don’t forget about these important tax and compliance deadlines for November 2025, and be sure to share this list with your clients.

In November, it is recommended that you:

• Encourage clients to update form W-4: Notify clients to have employees review and update W-4 forms for 2026.
• Prepare year-end tax projections: Identify year-end tax-saving strategies for clients.
• Review payroll compliance: Ensure all quarterly payroll filings are accurate before year-end.
• Plan a gratitude-focused client event: Host a small gathering or virtual event thanking clients before the year wraps up.

Key Compliance Dates

Monday, November 10: Tips reporting for October. 

Monday, November 10: Extended due date for Form 941 (if all deposits were made on time). 

Wednesday, November 12: Communications and air transportation taxes deposit for the first 15 days of October. 

Friday, November 14: Regular method excise taxes deposit for the last 16 days of October. 

Monday, November 17: Monthly payroll tax deposit for October (Form 941). 

Wednesday, November 26: Communications and air transportation taxes deposit for the last 16 days of October.

Intuit® Accountant Resources

• The November 2025 calendar with filing deadlines and reminders for you and your clients.
• One Big Beautiful Bill summary and tax changes
• Navigating the tax landscape
• IRS annual inflation adjustments for tax years 2024 and 2025
• Key Tax Facts for 2025