When Does Summer Start 2025 California Tax. The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025. Understanding the array of tax deadlines that apply to you—whether you're an individual filer,.

The federal tax filing deadline (tax day) is april 15, 2025, with an extension deadline of october 15, 2025. The california franchise tax board recently released tax changes for the 2024 tax year (taxes filed in 2025).