A: For C corporations that filed for an extension, the due date for Form 1120 was October 15, 2025. This is the standard extended deadline for calendar-year corporations. Many Massachusetts businesses rely on extensions to gather documents, finalize financials, or resolve bookkeeping issues. However, once this date passes, any corporation that has not filed is officially late.

Q: What happens if a corporation missed the 10/15/25 deadline?

A: Missing the deadline triggers automatic IRS penalties and accruing interest. The late-filing penalty for Form 1120 is generally 5% of the unpaid tax per month, up to a maximum of 25%. Even if your corporation owes nothing, failing to file can still create compliance problems and IRS notices. Interest also applies on top of penalties, which means the longer you wait, the more costly the mistake becomes.

Q: Can Massachusetts corporations get penalty relief?

A: Yes. The IRS allows corporations to request reasonable cause penalty abatement under certain circumstances. If your business can demonstrate valid reasons for missing the deadline—such as natural disasters, records destroyed, or major unforeseen events—you may qualify for relief. As enrolled agents, Drenen Financial Services can prepare the necessary filings and represent you directly before the IRS to request relief.

Q: What should you do right now if you missed the deadline?

A: The most important step is to file as soon as possible. The longer you wait, the more penalties and interest grow. At Drenen Financial Services, we can:

• Prepare and file your late Form 1120 quickly.
• Request penalty relief if you qualify.
• Negotiate payment plans with the IRS if taxes are owed.
• Ensure Massachusetts state filings are also handled correctly.

Acting fast prevents additional notices and protects your business’s compliance history.

Q: Why choose Drenen Financial Services for corporate tax help?

A: We are not just tax advisors; we are licensed enrolled agents who can represent you directly with the IRS. Based in Westfield, Massachusetts, we help local corporations resolve tax issues every day. Whether you need late filing assistance, penalty relief, or proactive tax planning for 2026, our office is ready to help.

Visit us: 89 S Maple St, Westfield, MA 01085
Call us today: 413-569-0015
Get help online: Contact us here

Q: Where can I find official IRS guidance?

A: For more details, see:

• IRS Form 1120 instructions
• IRS penalties overview

These resources explain the rules, but applying them correctly to your situation often requires expert help—especially if you are already behind.

Conclusion

The corporate tax deadline for extended returns passed on 10/15/25. If your Massachusetts corporation missed filing, don’t panic—but don’t wait either. Penalties and interest are already accumulating. Filing now, with professional representation, can reduce your costs and restore compliance. Drenen Financial Services specializes in helping corporations fix late filings, request relief, and build strategies to avoid future problems.

Call us at 413-569-0015 or visit us at 89 S Maple St, Westfield, MA 01085 to get started today.

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