October Tax Deadline 2025 Usa. For tax year 2023 (filed in 2025), you needed to submit your tax extension request by monday, april 15—the regular tax filing deadline—or face a penalty. Reporting social security and medicare taxes and income tax withholding for third quarter 2025 (form 941) and paying any tax due if all associated taxes due weren’t deposited on time and in.

However, if a taxpayer has all the. For example, victims of december’s severe storms and tornadoes.