Reliable online filing for C-Corporation taxes.
Form 1120 C-Corporations
Trusted guidance for Form 1120, payroll tax forms, and everything your corporation needs to stay compliant.
Identify eligible corporate deductions with step-by-step guidance
Save time with import and data entry tools.
Maintain clear records of corporate income, expenses, and shareholder equity
TaxAct walked me through my business taxes.
This was a tremendous help to me and was easy to understand and do thereby saving me several thousand dollars by not having to use our regular accountant.
Verified TaxAct Customer
Oct 25, 2025
Easy Peasy.
My first time this year with TaxAct for a C-Corp and for personal. Really couldn't have been easier and I was done with both in record time.
Never, ever going back to "the other guys".
Verified TaxAct Customer
May 24, 2025
Trusted filing with guaranteed accuracy.
Join over 650,000 businesses who have trusted us with their tax returns since 2003.
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Comprehensive corporate deduction guidance.
Identify allowable corporate expenses including salaries, benefits, rent, depreciation, and start-up costs.
Support for shareholder, officer, and payroll reporting.
Easily enter officer compensation and integrate payroll information to ensure full compliance.
Depreciation and asset management made simple.
Choose between MACRS, bonus depreciation, and Section 179 with step-by-step support.
Easy document storage and export.
Access prior-year filings and export finalized forms for bankers, investors, or internal reporting needs.
Built-in checks for corporate compliance.
Avoid common errors with alerts for missing schedules, balance sheet discrepancies, and book-to-tax adjustments.
Smart guidance on credits and carryovers.
We help you identify general business credits, NOL carryforwards, and other tax benefits that lower your corporate liability.
100% Accuracy Guarantee*
Rest assured, TaxAct guarantees the calculations on your return are 100% correct.
Satisfaction Guarantee*
With any TaxAct Online product your satisfaction is 100% guaranteed.
7-year return access
Easily access and print copies of your prior returns for seven years after the filling date.
Prefer Offline? Download the Software.
Edit directly in forms and work offline with our downloadable software for PC.
View Desktop FilingTwo tax returns. One connected experience.
Bundle C Corporations with your personal tax return.
From preparing your corporate tax return to seamlessly incorporating key tax data into your personal filing, our bundled solution keeps everything aligned.
Get accurate corporate tax calculations, clear insight into how salary, dividends, and equity impact your personal taxes, and peace of mind knowing your business and personal outcomes work together — not in silos.
Select list of Federal and State tax forms supported
Below are the Partnership forms included with this product. Release status is updated as forms become available. For the most up-to-date status of any form, visit our main forms page.
Form | Description |
|---|---|
| Form 1062 | Deferral of Tax on Gain From the Sale or Exchange of Qualified Farmland Property to Qualified Farmers |
| Form 1062A | Section 1062 Gain From the Sale or Exchange of Qualified Farmland Property to a Qualified Farmer |
| Form 1120 | US Corporation Income Tax Return |
| Form 1120N | Foreign Operations of US Corporations |
| Form 1120X | Amended US Corp Income Tax Return |
| Form 1122 | Authorization and Consent of Subsidiary Corporation To Be Included in a Consolidated Income Tax Return |
| Form 1125A | Cost of Goods Sold |
| Form 1125E | Compensation of Officers |
| Form 1139 | Corp Application for Tentative Refund |
| Form 2220 | Underpayment of Estimated Tax by Corporations |
Do it yourself
File with confidence using our simple, step-by-step guidance and built-in tools.
Your data stays secure with trusted safeguards, and our 100% Accuracy Guarantee* has you covered. And whenever questions come up, our support team is here to provide fast, reliable help so you can file with confidence.
Start FilingFrequently Asked Questions
You can file for free yourself with TaxAct's Free Edition if you meet the qualifications below, including filing using IRS Form 1040 only without having to attach any forms or schedules. Only certain taxpayers are eligible.
Situations covered (assuming no added tax complexity):
W-2 income, Unemployment income, Retirement income
Earned Income Tax Credit, Child Tax Credit
Dependents
Current Students
Student loan interest
Situations not covered:
Investment income: Stock, interest, dividends, crypto, or capital gains/losses
Sale of home, real estate taxes, mortgage interest, or rental property income
Royalty, trusts, and foreign accounts
Business and farm income
Itemized deductions
Adoption credits and child and dependent care
Health Savings Account (HSA)
Freelance, contractor, side hustle, or self-employed income and expenses
