Next deadline: Oct. 15

Federal tax deadlines

Oct. 15, 2026 Extended 2025 individual and calendar-year C corporation returns
Jan. 15, 2027 Last 2026 estimated tax payment

Full deadline calendar

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Updates by Maria Delgado-Kunz

Principal. Profile

2 updates by Maria Delgado-Kunz

Sept. 16, 2026

Individuals

Filing on extension: what to send us before Oct. 15

Extended 2025 individual returns are due Oct. 15, 2026.

By Maria Delgado-Kunz
Sept. 2, 2026

Individuals

Answering an IRS notice: the first three steps

Find the notice number and the reply date, then send us a copy.

By Maria Delgado-Kunz