Tax Deadlines

    • April 15: Tax return and payment due, 1st quarter estimated tax due

    • June 15: 2nd quarter estimated tax due

    • September 15: 3rd quarter estimated tax due

    • October 15: Extended filing deadline (payment not extended)

    • January 15: 4th quarter estimated tax due

    • March 15: Tax return, K-1s, and CA $800 minimum tax due

    • April 15: 1st quarter estimated tax due (CA)

    • June 15: 2nd quarter estimated tax due (CA)

    • September 15: Extended filing deadline & 3rd quarter estimated tax due (CA)

    • December 15: 4th quarter estimated tax due (CA)

    • April 15: Tax return and CA $800 minimum tax due

    • June 15: 2nd quarter estimated tax due

    • September 15: 3rd quarter estimated tax due

    • October 15: Extended filing deadline

    • December 15: 4th quarter estimated tax due

    • Filing extensions do NOT extend the time to pay

    • Taxes owed must be paid by the original due date to avoid penalties and interest