Stay ahead of your tax obligations with this essential calendar for 2025 and early 2026. Whether you’re filing your personal taxes or making estimated payments, these deadlines will help you avoid penalties and keep your finances on track.
Key Dates for 2025
| Date | IRS Deadline/Event | FTB (California) Deadline/Event |
|---|---|---|
| April 15, 2025 | File and pay 2024 federal tax return | File and pay 2024 state tax return |
| 1st quarter estimated tax payment due | 1st quarter estimated tax payment due | |
| June 16, 2025 | — | 2nd quarter estimated tax payment due |
| June 17, 2025 | 2nd quarter estimated tax payment due | — |
| September 15, 2025 | 3rd quarter estimated tax payment due | 3rd quarter estimated tax payment due |
| October 15, 2025 | Extended federal filing deadline (with extension) | Extended state filing deadline (automatic) |
| January 15, 2026 | 4th quarter estimated tax payment due | 4th quarter estimated tax payment due |
Details and Notes
Personal Income Tax Filing
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IRS: April 15, 2025, is the deadline to file and pay your 2024 federal income tax return.
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FTB: April 15, 2025, is also the deadline for your 2024 California state tax return. However, California grants an automatic extension to file until October 15, 2025—no application required. Taxes owed are still due by April 15, 2025.
Extensions
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IRS: You can request a six-month extension to file your federal return, moving the deadline to October 15, 2025. Payment of any tax owed is still due by April 15, 2025.
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FTB: California provides an automatic extension to file until October 15, 2025. Payment must be made by April 15, 2025, to avoid penalties.
Estimated Tax Payments (Pre-Payments)
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IRS: Estimated tax payments are due quarterly for those who expect to owe tax not covered by withholding.
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1st Quarter: April 15, 2025
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2nd Quarter: June 17, 2025
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3rd Quarter: September 16, 2025
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4th Quarter: January 15, 2026
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FTB: California also requires quarterly estimated payments if you expect to owe more than a certain amount.
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1st Quarter: April 15, 2025
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2nd Quarter: June 16, 2025
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3rd Quarter: September 15, 2025
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4th Quarter: January 15, 2026
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Special Considerations
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Disaster Relief: If you are in a disaster-declared area, you may qualify for extended deadlines for both IRS and FTB filings and payments.
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Farmers and Fishermen: Special rules and deadlines may apply.
Summary Table
| Quarter | IRS Payment Due Date | FTB Payment Due Date |
|---|---|---|
| 1st | April 15, 2025 | April 15, 2025 |
| 2nd | June 17, 2025 | June 16, 2025 |
| 3rd | September 16, 2025 | September 15, 2025 |
| 4th | January 15, 2026 | January 15, 2026 |
Stay Compliant and Avoid Penalties
Mark your calendar with these key dates and set reminders to ensure you meet all filing and payment deadlines. For more information or personalized tax planning, contact AndersenCPA.com.
Note: This calendar is current as of June 2025. Always check with the IRS and FTB for the latest updates, especially if you are affected by disasters or special circumstances.
