October 16, 2023
for e-filing
Deadline for this form has passed

Form 1120



once annually




If you had upto
in US entity expenses for the year

Small businesses operating as corporations in the U.S. must file Tax Form 1120.

Start Filing 1120 📁Check other Deadlines
Mandatory for

The following entities in the United States must file Tax Form 1120.

  • Small businesses
  • Certain LLCs
  • S Corporations

If taxes are not filed or paid after the deadline, costly penalties and interest fees may occur.

Due date

The deadline to file this form for your corporation's tax year is typically March 15th, the 15th day of the third month after the year-end.

All About Form 1120

The 1120 tax form has been created exclusively to furnish details about a corporation's earnings, expenses, and allowances for the year.

Small businesses must submit their 1120 tax form with precise and comprehensive information before the March 15th deadline (or with a six-month extension) to avoid penalties and audits.

Summary of US BEA Deadlines


May 31, 2023
June 30, 2023 for eFile
Within 45 days of acquisition


What is a Form 1120 in Delaware?

Form 1120 is a crucial tax document utilized by corporations in the United States to disclose their income, gains, losses, deductions, and credits for federal income tax goals. In Delaware, corporations are expected to submit Form 1120 if they are operating within the state or have obtained income from sources within its boundaries.

What is Delaware C corporation tax?

C corporations conducting business in Delaware must pay an annual fee known as the Delaware state franchise tax, a privilege fee for operating within the state's jurisdiction.

What does Delaware C Corp mean?

A Delaware C Corporation (C Corp) is a type of business entity formed under the laws of Delaware and is taxed separately from its owners. A C Corp is considered a separate legal entity from its shareholders, meaning it can enter into contracts, own assets, and conduct business in its name.

What Is an 1120 Tax Form? Filing Tips for Startup Founders

Attention all business owners and entrepreneurs! Are you aware of the upcoming BE-12 2023 Survey? If not, it's time to mark your calendars!

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