NOTICE: Internet Explorer was retired by Microsoft on June 15th, 2022 and is no longer supported. This could change how you access Online Banking.

Skip Navigation

Business Tax Deadlines You Need to Know

02/27/2024 - Business Insights

desk view of a person using a calculator a pen and a laptop to file their taxes
Business Insights: Business Tax Deadlines You Need to Know

Whether you’re a solo entrepreneur or a sizeable employer, you probably have several different tax deadlines to keep track of.

In this post, we’ll review some key federal tax forms and filing due dates you need to know.

A Note About These Dates

All dates listed below are “standard,” not set in stone. There are three reasons for this:

  1. If the standard date falls on a Saturday, Sunday, or legal holiday (including certain state-specific holidays), the deadline is moved to the next regular business day.
  2. In rare instances, the IRS has been known to extend deadlines for some or all taxpayers due to widespread emergencies (such as Hurricane Sandy in 2012–2013 and COVID-19 in 2020–2021).
  3. These dates assume that your business follows a calendar year (January 1 to December 31) as your accounting period. If you’ve adopted a different fiscal year, some quarterly and annual filing deadlines will shift.

So, you can use this document as a general tax prep guide. Still, remember to consider your situation, consult a tax professional, and confirm the exact dates and details on

What’s Considered “On Time”?

The IRS considers your tax return to be filed on time if the envelope is properly addressed, stamped, postmarked, and deposited in the mail by the due date. If you file electronically, you must submit your return by 11:59:59 p.m. in your local time zone on the due date.

Business Federal Income Tax Return Deadlines

Your business entity type and tax status determine which income tax form you have to file and when:

  • Sole proprietorships and single-member LLCs: File Form 1040 (Individual Income Tax Return) and a Schedule C (Profit or Loss from Business) by April 15.
  • Partnerships and multi-member LLCs: File Form 1065 (U.S. Return of Partnership Income) by March 15.
  • S corporations: File Form 1120-S (U.S. Income Tax Return for an S Corporation) by March 15.
  • C corporations: File Form 1120 (U.S. Corporation Income Tax Return) by April 15.

Business Tax Extension Deadlines

If you need additional time to complete your annual income tax return, you can request an extension:

  • Sole proprietorships and single-member LLCs: File Form 4868 (Application for Automatic Extension of Time to File U.S. Individual Income Tax Return) by April 15 to extend to October 15.
  • Partnerships and multimember LLCs and S corporations: File Form 7004 (Application for Automatic Extension of Time to File Certain Business Income Tax, Information, and Other Returns) by March 15 to extend to September 15.
  • C corporations: File Form 7004 (Application for Automatic Extension of Time to File Certain Business Income Tax, Information, and Other Returns) by April 15 to extend to October 15.

Business Quarterly Estimated Tax Deadlines

Most businesses are required to file and pay quarterly estimated taxes to avoid underpayment penalties:

  • All businesses other than C corporations: File Form 1040-ES (Estimated Tax for Individuals) by April 15, June 15, September 15, and January 15.
  • C Corporations: File Form 1120-W (Estimated Tax for Corporations) by April 15, June 15, September 15, and December 15.

Business Payroll Tax Deadlines

Employers must report the payroll taxes withheld from employees’ paychecks, plus the portions they owe:

  • All employers: File Form 941 (Employer’s Quarterly Federal Tax Return) by April 30, July 31, October 31, and January 31, and file Form 940 (Employer’s Annual Federal Unemployment Tax [FUTA] Return) by January 31. Be aware that you may have to make quarterly FUTA payments if your liabilities exceed a certain dollar amount.

Business Employee and Contractor Tax Deadlines

Typically, businesses must report the compensation they pay to employees and independent contractors:

  • All employers and contractees: Provide Form W-2 (Wage and Tax Statement) to each employee – as well as copies of those forms accompanied by Form W-3 (Transmittal of Wage and Tax Statements) to the Social Security Administration – by January 31. Provide Form 1099 to independent contractors to whom you paid more than $600 throughout the year – as well as copies of those forms to the IRS – by January 31.

Don’t Forget Your Other Taxes

Remember, the deadlines and forms above cover only the most common federal tax obligations for businesses. You may also owe state and local income tax, property tax, sales tax, franchise tax, vehicle use tax, and/or excise tax at various points throughout the year. It’s a good idea to sit down with an experienced tax attorney or advisor to create a master schedule and payment plan.


Content is for informational purposes only and is not intended to provide legal or financial advice. The views and opinions expressed do not necessarily represent the views and opinions of WesBanco.

While we hope you find this content useful, it is only intended to serve as a starting point. Your next step is to speak with a qualified, licensed professional who can provide advice tailored to your individual circumstances. Nothing in this article, nor in any associated resources, should be construed as financial or legal advice. Furthermore, while we have made good faith efforts to ensure that the information presented was correct as of the date the content was prepared, we are unable to guarantee that it remains accurate today.

Neither Strategy Academy nor its sponsoring partners make any warranties or representations as to the accuracy, applicability, completeness, or suitability for any particular purpose of the information contained herein. Strategy Academy and its sponsoring partners expressly disclaim any liability arising from the use or misuse of these materials and, by visiting this site, you agree to release Strategy Academy and its sponsoring partners from any such liability. Do not rely upon the information provided in this content when making decisions regarding financial or legal matters without first consulting with a qualified, licensed professional.

Stay Informed:

Sign up for regular news & updates.

    This will close in 0 seconds