Tax Law and News

October 2025 tax and compliance deadlines

Written by Christopher J. Picciurro, CPA/PFS, MBA, ARA
Published Sep 17, 2025
1 min read

October is a busy month for most tax pros. Not only are you finalizing your clients’ extensions; you are also planning ahead for the next tax year. Along the way, check out these important tax and compliance deadlines for October 2025, and be sure to share this list with your clients.

In October, it is recommended that you:

Complete extended individual and corporate returns: Prioritize 1040 and 1120 filings before October 15.
Initiate year-end tax planning: Begin discussions on charitable contributions, retirement planning, and deductions.
File Q3 payroll and excise tax returns: Prepare and file Form 941, Employer’s Quarterly Federal Tax Return, and Form 720, Quarterly Excise Federal Tax Return.
Participate in a fun fall festival or local event: Break away from tax software, QuickBooks® Online, and spreadsheets to enjoy a seasonal event such as a pumpkin patch, food festival, or Oktoberfest.

Key Compliance Dates

Friday, October 10: Tips reporting for September.

Wednesday, October 15:

Extended Individual (1040) and Corporate (1120) returns due.
Monthly payroll tax deposit for September (Form 941).

Monday, October 27: Communications and air transportation taxes deposit for the last 15 days of September.

Wednesday, October 29: Regular method excise taxes deposit for the first 15 days of October.

Friday, October 31:

Form 941 for 03 2025 due.
Form 720 for 03 2025 due.
Form 730, Monthly Tax Return for Wagers, and Form 2290, Heavy Highway Vehicle Use Tax Return, for September due.

Intuit® Accountant Resources

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

Previous Post

The GENIUS Act and the new cryptocurrency rules

Chris Picciurro is a highly respected expert in U.S.-based tax planning and strategy for real estate investors. Based in Franklin, TN, where he resides with his family, Chris is an accomplished public speaker, recognized for delivering informative and engaging presentations at notable events hosted by organizations such as the National Association of Tax Professionals (NATP), Michigan Association of CPAs, and the Memphis Investment Group. He also previously participated as an Adjust Professor at Baker College and Davenport University. Chris served on the Intuit Tax Council from 2017-2020, and is a co-founder and executive officer of the Integrated CPA Group, founder of Teaching Tax Flow, and the Monthly Recurring Revenue Institute. More from Christopher J. Picciurro, CPA/PFS, MBA, ARA