When are corporate tax returns due with extension

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It's essential to know when taxes are due in 2025.

And, for many people, there are more tax deadlines to worry about than just the due date for your federal income tax return.

Tax deadline 2025

The IRS can hit you with penalties and interest if you miss a tax deadline.

• For example, the standard penalty for failing to file your annual tax return on time is 5% of the tax due for each month (or partial month) your return is late.
• If you don't pay your taxes on time, the monthly penalty is 0.5% of the unpaid amount, up to 25% of what you owe.
• You will also owe interest on the unpaid taxes.

  Penalties apply to missing other tax deadlines, too.

However, it can be hard to keep track of every IRS tax deadline. (After all, there's at least one monthly tax deadline.)