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Confidently file your S-Corporation taxes online.

TaxAct Business 1120-S

Get affordable, step-by-step guidance to file accurately and stress-free.

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Maximize your business deductions with guided help

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Save time with data entry and import tools

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Create reports of income and expenses for each shareholder

$164.99

+$59.99per state filed.

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Super User-Friendly

This was my first time filing taxes for my S-corp. I looked on IRS site for guidance and they listed TaxAct as a resource. I really liked how easy it was to navigate through all of the possible scenarios our company works in and how easy it was to review and process. I especially appreciate the response and confirmation that my returns were approved. I have my K-1s to distribute and peace of mind.

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Verified TaxAct Customer

Mar 19, 2025

Easy, Affordable, and Quick

I realized my business taxes needed to be done by me, after my personal tax guy moved out my meeting date. I went to the IRS to ensure I found a recognized e-filing company. TaxAct was affordable and integrated with QuickBooks online. Winner Winner Chicken Dinner. I completed my business taxes directly and saved hundreds of dollars!

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Verified TaxAct Customer

Mar 18, 2025

Trusted filing with guaranteed accuracy.

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Join over 650,000 businesses who have trusted us with their tax returns since 2003.

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Fast data entry and import tools

Save time and minimize data entry errors by importing key data from last year’s tax return. Plus, enter data directly into forms or use quick entry methods for M-3, 4562, K-1, and Schedule L information.

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Automatic partner/shareholder allocation

Your Schedule K-1 items automatically allocate and update as business income, deductions, and credits change. Once complete, Schedule K-1 data can be imported into your personal TaxAct return.

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Capital gains summary

Capital gains can be confusing, especially as your portfolio grows, and keeping track of all your transactions can be taxing. TaxAct's Capital Gains Summary makes comparing your short and long-term brokerage statement to your tax return fast and easy.

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Step-by-step guidance to maximize business deductions

We’ll walk you through a broad range of business expenses to help you accurately report and maximize your deductions.

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Accounting records import

Easily import your Trial Balance Report, in .CSV format, from your bookkeeping software. Once imported, make any necessary adjustments, and TaxAct will transfer to the appropriate lines.

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Security is a top priority

We utilize security technology and monitoring processes, and we partner with the IRS to protect your personal information.

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Editions for all 1120S states

TaxAct supports every state that requires Form 1120S S Corporation income tax returns.

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100% Accuracy Guarantee

Rest assured, TaxAct guarantees the calculations on your return are 100% correct.

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Satisfaction Guarantee

With any TaxAct Online product your satisfaction is 100% guaranteed.

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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 Filing

Two tax returns. One workflow.

Bundle S Corporations with your personal tax return.

File your S Corporation and personal 1040 returns together for a connected tax experience. Automatically sync shareholder income, deductions, and credits — giving you real-time visibility into your total liability.

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Not sure if your forms are included? We make it easy to find out.

We cover the majority of federal and state partnership forms, so you can file with confidence.

Find Your Forms

File your S Corporation taxes with expert help.

Get unlimited access to experts while you DIY, or hand everything off for full-service tax prep — it’s your choice.

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DIY with Expert Help

Do it yourself, with unlimited expert help when you want it — extra support for the moments when you want to talk it out. For forms 1065 and 1120-S Only.

Starting at:

$293.99

+ State Additional

Start with Form 1120-S
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DIY filing with help whenever you need it.

  • • Live help from credentialed tax experts

  • • Support for most consumer tax forms

  • • Unlimited sessions

  • • 100% U.S.-based tax experts

  • • 100% accuracy guaranteed*

  • • Maximum refund guaranteed

  • • +$59.99 Per State

  • Learn More about Xpert Assist

  • • Xpert Assist Terms of Service

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Let us do your taxes

Send us your forms and answer a few questions — our credentialed tax experts will prepare and e-file your tax return for you. For forms 1065 and 1120-S Only.

$499

1 State Included

Learn More
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A tax expert handles it from start to file.

  • • Your taxes, done for you — just upload your docs and we’ll take it from there

  • • Work with 100% U.S.-based, credentialed tax experts

  • • Covers most consumer tax forms

  • • 100% Expert Accuracy Guarantee

  • • Maximum refund guaranteed

  • • 1 State Included

  • Learn More about Xpert Full Service

  • • Xpert Full Service Terms of Service

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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.

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Frequently 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

About 44% of users qualify. If you don’t qualify for a basic federal tax return, we have other to help you easily file taxes online with TaxAct.