Deadlines and filing
When is the business tax filing deadline?
Short answer
For calendar-year businesses, partnership and S-Corporation returns are due March 15, while C-Corporation returns and individual returns with a Schedule C are due April 15. A deadline on a weekend or federal holiday moves to the next business day. Form 7004 or Form 4868 extends the filing deadline six months.
Answered by Dushyant Hirwani · Updated November 3, 2026Need help with tax preparation?
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