Edit Form 1120 online free, or download the PDF
Corporate Tax Return: U.S. Corporation Income Tax Return
or choose your own copy:
- ✓ Official current version
- ✓ Free download, no account
- ✓ No card, no trial
- ✓ Never uploaded
Form 1120 in short
Form 1120 is the yearly income tax return for a domestic C corporation. It reports income, gains, losses, deductions and credits and figures the corporation's income tax. Domestic corporations file it whether or not they have taxable income, unless they are exempt or must file a special return. The current form is for tax year 2025.
| Issued by | Internal Revenue Service (IRS) |
|---|---|
| Current version | 2025 (checked 2026-10-25) |
| Who fills it in | All domestic corporations, including corporations in bankruptcy, unless exempt under section 501 or required or electing to file a special return. An LLC files Form 1120 only if it elected on Form 8832 to be taxed as a corporation. S corporations file Form 1120-S instead. |
| Who receives it | The IRS. |
| Where to send it | Corporations that file 10 or more returns of any type during the calendar year are required to e-file, unless they get a waiver. If you mail it, the address depends on the state of the principal business, office or agency and on total assets. Entities in Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, West Virginia or Wisconsin with total assets under $10 million and no Schedule M-3 use Kansas City, MO 64999-0012. Those same states with $10 million or more in assets, or filing Schedule M-3, use Ogden, UT 84201-0012. All other states use Ogden, UT 84201-0012. A foreign country or U.S. territory uses Internal Revenue Service, P.O. Box 409101, Ogden, UT 84409. Check the Where To File table in the instructions before mailing. |
| Deadline | Generally the 15th day of the 4th month after the tax year ends, which is April 15 for calendar year corporations. A corporation with a fiscal year ending June 30 files by the 15th day of the 3rd month after year end. Form 7004 requests an automatic extension of time to file, but not to pay. |
| Official links | Official page · Official PDF · Official instructions |
What changed
For returns required to be filed in 2026, the minimum penalty for a return more than 60 days late is the smaller of the tax due or $525. New line 32 and Schedule J line 22b cover the section 1062 election for gain on qualified farmland sold to qualified farmers. Direct deposit fields were added on lines 37c to 37e. The IRS continues to waive the estimated tax penalty for 2025 to the extent it relates to corporate alternative minimum tax.
How to fill out Form 1120, line by line
| Item A | Check boxes Consolidated return (attach Form 851), personal holding company (attach Schedule PH), personal service corporation, and Schedule M-3 attached. |
| Items B to E | EIN, date incorporated, total assets, return type Enter the EIN, date of incorporation and total assets, and check initial, final, name change or address change if they apply. |
| Lines 1a to 11 | Income Gross receipts, cost of goods sold, dividends and inclusions from Schedule C, interest, rents, royalties, capital gains and other income. |
| Line 12 | Compensation of officers Deductible officer pay. Form 1125-E is required when total receipts are $500,000 or more. |
| Lines 13 to 27 | Deductions Wages, repairs, bad debts, rent, taxes, interest, charitable contributions, depreciation from Form 4562, advertising, benefits and other deductions. |
| Lines 28 to 30 | Taxable income Income before the net operating loss deduction and special deductions, then taxable income after them. |
| Line 31 and Schedule J | Total tax Figured on Schedule J. The instructions multiply taxable income by 21% for the regular income tax, then add other taxes and subtract credits. |
| Lines 33 to 37e | Payments, amount owed, overpayment Estimated tax payments and credits, any estimated tax penalty from Form 2220, the balance due, and how to apply or refund an overpayment. |
| Signature | Officer signature Signed by the president, vice president, treasurer, assistant treasurer, chief accounting officer or another authorized officer. |
| Schedule C | Dividends, inclusions and special deductions Figures the dividends received deduction and related amounts that flow to page 1. |
| Schedule K | Other information Yes or No questions on accounting method, ownership and other items. Question 13 lets corporations with receipts and assets under $250,000 skip Schedules L, M-1 and M-2. |
| Schedules L, M-1, M-2 | Balance sheet and reconciliations Book balance sheet, reconciliation of book income to taxable income, and retained earnings analysis. |
Common mistakes to avoid
- Filing Form 1120 for an LLC that never filed Form 8832 to be taxed as a corporation.
- Filing Form 1120 when the company has a valid S election. Use Form 1120-S instead.
- Thinking Form 7004 extends the time to pay. It only extends the time to file.
- Using the April due date for a June 30 fiscal year corporation, which has a different due date.
- Leaving out Form 1125-E when total receipts are $500,000 or more.
- Mailing to Kansas City when Schedule M-3 is attached or total assets are $10 million or more.
Questions about Form 1120
Does a corporation with no income still file Form 1120?
Yes. The instructions say domestic corporations must file whether or not they have taxable income, unless they are exempt or file a special return.
When is Form 1120 due?
Generally the 15th day of the 4th month after the tax year ends, so April 15 for a calendar year. A June 30 fiscal year corporation files by the 15th day of the 3rd month.
What is the corporate tax rate on Form 1120?
The Schedule J instructions multiply taxable income by 21% for the regular income tax. Other taxes and credits are then added or subtracted.
What is the penalty for filing Form 1120 late?
5% of the unpaid tax for each month or part of a month, up to 25%. For returns required to be filed in 2026 that are more than 60 days late, the minimum is the smaller of the tax due or $525.
Does a corporation pay estimated tax?
Generally yes, if it expects its total tax for the year, less credits, to be $500 or more. Installments are due by the 15th day of the 4th, 6th, 9th and 12th months of the tax year and must be paid by electronic funds transfer.
Can I e-file Form 1120?
Yes. Corporations that file 10 or more returns of any type in the calendar year are required to e-file unless they get a waiver.
Related forms
Tools for this form
Sources
Checked against the official sources on 2026-10-25. PDF Editor Hub is not affiliated with the Internal Revenue Service or any government agency. This page is general information, not legal or tax advice.