For small business owners in California, staying on top of tax deadlines keeps your cash flow predictable and your compliance record clean. Between federal, state, and sometimes local requirements, it’s easy to miss an important date. This 2025 California small business taxes calendar will help you plan ahead for every major filing and payment deadline, so you can focus on running your business instead of scrambling at the last minute.
Key Federal Deadlines for Small Businesses in 2025
While this guide focuses on California-specific requirements, remember that you must also comply with federal IRS deadlines.
- January 15, 2025 – Final 2024 Q4 federal estimated tax payment due (Form 1040-ES).
- January 31, 2025 – W-2s and 1099-NECs due to recipients and the IRS.
- April 15, 2025 –
- Individual tax returns (Form 1040) are due.
- Q1 federal estimated tax payment is due.
- C-Corp returns (Form 1120) are due for calendar-year filers.
- June 16, 2025 – Q2 federal estimated tax payment due.
- September 15, 2025 – Q3 federal estimated tax payment due.
California State Deadlines in 2025
California’s tax obligations add another layer of important dates.
Income Tax (FTB)
- January 15, 2025 – Final 2024 Q4 CA estimated tax payment due (Form 540-ES).
- April 15, 2025 –
- California personal income tax returns due (Form 540).
- Q1 CA estimated tax payment due.
- June 16, 2025 – Q2 CA estimated tax payment due.
- September 15, 2025 – Q3 CA estimated tax payment due.
Payroll Taxes (EDD)
If you have employees in California, you must file payroll reports quarterly:
- January 31, 2025 – Q4 2024 payroll reports due (Forms DE 9 and DE 9C).
- April 30, 2025 – Q1 2025 payroll reports due.
- July 31, 2025 – Q2 2025 payroll reports due.
- October 31, 2025 – Q3 2025 payroll reports due.
Sales and Use Tax (CDTFA)
Due dates for Sales and Use Tax vary depending on your filing frequency in California(monthly, quarterly, or annual). Most quarterly filers have:
- April 30, 2025 – Q1 2025 sales and use tax return due.
- July 31, 2025 – Q2 2025 return due.
- October 31, 2025 – Q3 2025 return due.
- January 31, 2026 – Q4 2025 return due.
Don’t forget to keep up with local deadlines, too! If your business operates in Burbank, you may also be subject to City of Burbank business license renewals (typically due annually at the start of the calendar year or other local fees.
Why Partnering With a CPA Saves You More Than Time
A local CPA can help you proactively manage your compliance, forecast your tax liabilities, and help you plan for upcoming obligations so your cash flow isn’t disrupted. This means no late fees, maximized deductions, and peace of mind!
For California small business owners, especially those in Burbank, knowing and preparing for each tax deadline is critical to avoiding penalties and protecting profitability. From California small business taxes to local license renewals, the earlier you plan, the smoother your year will be.
Partner with Hojjati CPA!
At Hojjati CPA, we specialize in helping businesses stay ahead of the calendar while building strategies to reduce taxes and improve cash flow. Let’s make 2025 the year you file early, stay compliant, and keep more of what you earn. Contact us today!
