Corporation Tax Filing Deadline — April 15, 2026 | Netfintax
Deadline Alert — C-Corp & Individual Filers

Your Corporation Tax
Return Is Due April 15,
Don't Miss It.

The IRS deadline for C-Corporations (Form 1120) and individual tax returns (Form 1040) is April 15, 2026 — approaching fast. Missing this date triggers automatic penalties, daily interest, and potential IRS notices. File on time or secure an extension — act before it's too late.

Time remaining until April 15 deadline
34Days
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00Hrs
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00Min
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IRS-Compliant Filing
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🗓 Deadline: April 15, 2026
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Why This Matters

What happens if you miss the April 15 deadline?

⚠️

Failure-to-File Penalty

The IRS charges 5% of unpaid taxes per month — up to 25% of your total unpaid balance — starting the day after the deadline.

📈

Daily Interest Accrues

Interest on unpaid taxes compounds daily from April 15 onward — even if you eventually file. It adds up fast.

File Now or Get an Extension

Netfintax can file your return or secure a 6-month extension today — stopping penalties before they start.

Who Must File by April 15

Does This Deadline Apply to You?

🏢

C-Corporations (Form 1120)

All domestic C-Corps with a calendar tax year must file Form 1120 by April 15 — or file Form 7004 to extend.

👤

Individual / Self-Employed (Form 1040)

Sole proprietors, freelancers, and independent contractors file Form 1040 with Schedule C by April 15.

💼

Single-Member LLCs (Disregarded Entity)

Single-member LLCs taxed as sole proprietors report on Schedule C — same April 15 deadline as individuals.

📋

Need More Time? File Form 4868

An extension gives you until October 15 to file — but taxes owed must still be paid by April 15 to avoid interest.

Why Netfintax

Your Trusted Partner for US Business Taxes

Since 2013, Netfintax has helped small business owners across all 50 states with tax filing, accounting, and small business consulting — done right, on time, every time.

Whether you're a C-Corp, sole proprietor, or need a quick extension, our experienced team handles your filing from start to finish.

  • Form 1120 (C-Corporation) filing
  • Form 1040 & Schedule C (Self-Employed) filing
  • Extension filing (Form 4868 / 7004) to avoid penalties now
  • Estimated tax calculation to minimize penalties
  • Year-round bookkeeping & tax planning
  • English & Vietnamese-speaking consultants

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For informational purposes only. Consult a licensed tax professional for advice specific to your situation.