2024 California S-corp due dates

Below is a comprehensive guide to assist you through the upcoming tax season for small business owners, individuals, S-corp holders & C-corps.

2024 California S-corp due dates

Individual Taxpayers

• Federal Income Tax Returns:

  • Due Date: April 15, 2025.

  • Extension: Taxpayers can request an extension to file until October 15, 2025. However, any taxes owed are still due by April 15, 2025.

• California State Income Tax Returns:

  • Due Date: April 15, 2025.

  • Automatic Extension: California provides an automatic extension to file until October 15, 2025. No application is required for this extension, but any taxes owed must be paid by April 15, 2025, to avoid penalties and interest.

    ftb.ca.gov

• Estimated Tax Payments for 2025:

  • 1st Quarter: April 15, 2025.

  • 2nd Quarter: June 16, 2025.

  • 3rd Quarter: September 15, 2025.

  • 4th Quarter: January 15, 2026.

  These dates apply to both federal and California state estimated tax payments.

  taxes.ca.gov

  
  

Business Entities

• S Corporations and Partnerships:

  • Due Date: March 17, 2025 (for calendar year filers).

  • Automatic Extension: S Corporations receive a 6-month extension to September 15, 2025, and Partnerships receive a 7-month extension to October 15, 2025. Payments are still due by March 17, 2025.

    taxes.ca.gov

• C Corporations:

  • Due Date: April 15, 2025 (for calendar year filers).

  • Automatic Extension: C Corporations receive a 7-month extension to November 15, 2025. Payments are due by April 15, 2025.

    taxes.ca.gov

Tax Relief for Disaster-Affected Areas

The IRS has announced tax relief for individuals and businesses in parts of California affected by wildfires and straight-line winds that began on January 7, 2025. Taxpayers in Los Angeles County now have until October 15, 2025, to file various federal individual and business tax returns and make tax payments. This extension applies to returns and payments originally due between January 7, 2025, and October 15, 2025.

irs.gov

Important Considerations

• Timely Payments: While extensions provide additional time to file returns, any taxes owed are still due by the original due dates to avoid penalties and interest.

• Automatic Extensions: California offers automatic filing extensions; however, this does not extend the time to pay any taxes due.

• Stay Informed: Tax laws and deadlines can change, especially in response to unforeseen events like natural disasters. Regularly consult official IRS and California Franchise Tax Board communications for the most current information.

By adhering to these deadlines and guidelines, you can ensure compliance and avoid potential penalties for your clients during the 2024 tax season.