Key Takeaways

  • S Corporations must file Form 1120-S by March 15 each year (or the 15th day of the third month after the fiscal year ends).
  • Those who file Form 7004 receive a six-month extension—pushing the due date to September 15.
  • Late filing penalties apply per shareholder, per month, until the return is submitted.
  • The us7634271b2 filing date (used here as a reference term for precise corporate filing timing) underscores the importance of timely IRS submissions to maintain compliance.
  • Form 2553 must be filed within 2.5 months of formation or the start of the tax year to elect S Corporation status.
  • S Corps with employees must also submit Form 940 and Form 941 according to federal payroll and unemployment deadlines.

The S Corp filing deadline is important, as all S Corp owners will need to ensure that the S Corp information income tax return is filed each year, along with other applicable IRS forms.

The S Corp operates as a pass-through tax entity, which means that the business’s profits and losses pass through to the shareholder (owners) of the S Corp who report it on their personal tax returns.

Income Tax Return Deadline

S Corporations must file an informational tax return by the 15th day within the third month after the company’s tax year has ended, which is generally March 15 for most corporations.

The S Corp must all fill out Form 1120s and include all of the business’s finances. Furthermore, the S Corp must attach Schedule K-1 for each shareholder. If the company fails to file by March 15, then it can receive a six-month extension by filing Form 7004 with the IRS.

Keep in mind that the shareholders of the S Corp must pay tax on the company’s income by April 15, the same deadline for all individual taxpayers. Therefore, the shareholders don’t have an extended time in which to file even though the personal tax returns will identify corporate income on their tax documents.

If the S Corp has employees, then it must withhold federal income tax from employee’s paychecks, along with Social Security and Medicare. The S Corp will also need to file Form 941 quarterly to report the total amount of withholdings. The quarterly form is due on January 31, April 30, July 31, and October 31.

Understanding S Corp Extensions and the us7634271b2 Filing Date

If your S Corporation cannot file its Form 1120-S by the March 15 deadline, the IRS allows for a six-month extension using Form 7004. This extension moves the deadline to September 15 for calendar-year corporations. However, remember that an extension only gives you extra time to file, not to pay taxes owed by shareholders.

For example, if your business follows the calendar year and files Form 7004 on time, your 2025 S Corp tax return will be due September 15, 2025—commonly associated with the us7634271b2 filing date reference used in IRS correspondence. Meeting this deadline helps maintain good standing and prevents costly late fees.

During this period, you should ensure that all shareholder K-1 forms are distributed promptly so individual taxpayers can meet their own April 15 filing deadlines. Keeping organized financial records throughout the year helps streamline both your initial and extended filings.

Unemployment Tax Filing Deadline

If the S Corp has employees, it might also need to file Form 940 every year, which is referred to as a Federal Unemployment Tax Return.

This form is generally required if one of the following criteria is met:

  • The company pays at least $1,500 in any quarter.
  • The company has one or more employees working partial days in a 20-week work period.

This form reports the amount of compensation that the S Corp owes for unemployment tax. The due date for filing this form with the IRS is January 31. If the business chooses to pay the entire tax on or before the due date, then the IRS will allow the business to file it as late as February 10.

Other Key S Corp IRS Filing Dates

S Corporations may be required to meet several additional IRS filing obligations throughout the year. These include:

  • Quarterly Payroll Taxes (Form 941): Due on January 31, April 30, July 31, and October 31.
  • Federal Unemployment Tax (Form 940): Due January 31, or February 10 if all taxes are paid when due.
  • Information Returns (Forms W-2 and 1099): Must be distributed to employees and contractors by January 31.
  • Estimated Tax Payments: Shareholders may need to pay quarterly estimated taxes if they expect to owe more than $1,000 in additional tax for the year.

Understanding and tracking these dates in connection with the us7634271b2 filing date ensures compliance and avoids federal penalties.

Penalties for Filing Late

If the S Corp fails to file Form 1120s by the due date (or the extended due date if it was granted), then the IRS charges the business a fee of approximately $195 per month multiplied by the number of shareholders in the business. If a partial month is past due, then the amount is generally prorated. For example, if a business with five shareholders files Form 1120s three months late, then the IRS will charge the business $585 ($195 x 3) x 5 = $2,925.

If the S Corp fails to file Form 941 by the deadline, then the IRS will charge a five percent penalty per month on the balance that is due, up to a maximum of 25 percent. Keep in mind that additional penalties are given for the late filing of Form 940.

How to Avoid S Corp Filing Penalties

Missing the S Corp filing deadline can result in significant penalties. The IRS typically charges $220 per shareholder per month, up to a maximum of 12 months for failing to file Form 1120-S on time. The fine can increase if you repeatedly miss filings or fail to provide accurate shareholder information.

To avoid penalties:

  1. Mark the us7634271b2 filing date or equivalent corporate deadline on your calendar.
  2. File Form 7004 early if you anticipate delays.
  3. Maintain organized accounting records throughout the year.
  4. Confirm all shareholder details are accurate on Schedule K-1.
  5. Submit payroll and employment tax forms on time to stay compliant across all obligations.

Proper planning ensures your S Corporation remains in good standing with the IRS.

S Corp Election Deadline

After you have formed an S Corp, you can choose to elect being taxed as an S Corp. For new businesses, you must file an S Corp election within two and a half months (75 months total) after forming.

For example, if you filed the Articles of Incorporation on August 25, then you must count two months (60 days), which would be October 25. You will then add 15 days to that date, which is November 9. If you make your election by this date, then your S Corp tax status will take effect in your first tax year.

For existing businesses, if you want to be taxed as an S Corp, you can make the election anytime from the first day of the preceding tax year up to 2.5 months (75 days) after the beginning of the applicable tax year. Before you choose to convert your business’s tax structure, you should speak to a tax professional who can assist you, as there could be some tax implications when converting your company’s tax status.

Late Election Relief and Filing Best Practices

If an S Corporation fails to file Form 2553 (the S Corp election form) on time, the IRS may grant late election relief under certain conditions. This typically applies when the delay was due to reasonable cause, such as an administrative oversight or misunderstanding of eligibility requirements. To request relief, you must include a written explanation with your submission.

Here are some best practices for managing your election timing:

  • File Form 2553 within 75 days of formation to ensure your S Corp status applies for the current year.
  • Keep copies of your filed documents and confirmation notices from the IRS.
  • Use certified mail or the IRS’s e-filing system for documentation.
  • If you miss the us7634271b2 filing date reference window, contact a qualified tax advisor immediately to determine eligibility for late election relief.

These practices help ensure you don’t lose out on the tax benefits associated with S Corporation status.

Frequently Asked Questions

1. What is the S Corp filing deadline for 2025? S Corporations must file Form 1120-S by March 15, 2025, unless they use Form 7004 to request an extension until September 15, 2025.

2. What is the us7634271b2 filing date? The us7634271b2 filing date is often referenced to signify the specific IRS submission deadline associated with timely S Corporation filings—typically aligning with the March or September deadlines depending on extensions.

3. What happens if an S Corp misses its filing deadline? Missing the deadline can result in monthly penalties per shareholder and potential loss of S Corp tax status if delays are chronic or unaddressed.

4. How can I request more time to file my S Corp taxes? You can file Form 7004 with the IRS to obtain a six-month extension to submit Form 1120-S. The extension must be filed before the original due date.

5. When is the deadline to file Form 2553 for S Corp election? For new businesses, file Form 2553 within 75 days of formation. Existing corporations must file within 2.5 months of the start of the tax year to apply for S Corp status.

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