File S Corporation Taxes Online with Smarter, Automated Accuracy

File your S corporation tax return online using intelligent automation built for accuracy, speed, and IRS compliance. X.TAX helps you eFile Form 1120-S with confidence,no manual stress, no missed deductions.

4.9/5  (2,341 User Reviews)
Start Filing Form 1120-S

What’s Form 1120-S, and
Why Does It Matter? 

Form 1120-S is the required tax return for S corporations to report income, deductions, credits, and shareholder distributions to the IRS. Filing it correctly is critical to avoid penalties and ensure each shareholder’s Schedule K-1 is accurate.

Income and Expenses

Stay compliant and maximize deductions

Shareholder Distributions

Pass profits to shareholders without double taxation. 

Federal Compliance

Avoid IRS penalties that cost up to $210 per month, per shareholder. 

That’s why choosing the right S corporation tax software matters.

What Information Do You Need to File Form 1120-S?

Ready to File? Here’s Your Checklist. 

E-File Form 1120-S

Information Required to File 1120-S

Gather these essentials before you begin

  • Financial Records: Income, expenses, receipts, and invoices.
  • EIN and Corporate Details: Business name, address, and tax year. 
  • Shareholder Info: Contributions and allocations for Schedule K-1.
  • Proof for Deductions: Like wages, rent, and utilities. 

Keep these organized, and X TAX will do the heavy lifting with its tax software for S corporations

Why S-Corps Trust X TAX ?

Built specifically for S corporation tax filing online, X.TAX combines automation with expert oversight.
Try X.TAX Today 

Save Hours, Not Minutes

Adapt the AI-tomatic way and cut filing time by more than half. 

Get Every Dollar You Deserve

No deduction or credit is overlooked.

Stay Stress-Free

Built-in compliance checks to keep you IRS-ready.

Expert Assistance

When things get tricky, our experts have your back.

Add-On's

Stay compliant with proactive alerts, audit protection, and real-time IRS monitoring. Leverage expert assistance for complex filings and full audit support. 

Let us handle taxes so you can focus on your business.

Audit Protection

$99/per filing

Tax Expert Review

$59/per filing

State Annual/Franchise Tax Reporting

$129/per filing

File Your 1120-S Forms in 4 Simple Steps

Tax filing doesn’t have to feel like rocket science

Create Your Account

Quick and easy setup

Input Financial Data

Use our guided platform to report income and expenses

Review Your Filing

Built-in checks catch errors before you submit.

Submit to the IRS

One click, and you’re done.

File Form 1120-S Now 

Why Thousands of Businesses Trust X TAX 

Here’s what our customers are saying
Corporation Tax filing has never been this simple!
"X.TAX’s smart AI filing tool made importing data from QuickBooks effortless. I completed our Form 1120 in no time!
Emily R.Tax Consultant
A must-have for busy business professionals
As a partnership, filing Form 1065 used to take hours. X.TAX’s automated mapping saved us so much time. Highly recommend!
John P.Managing Partner
Perfect for businesses of all sizes
Our S Corporation relies on X.TAX for filing Form 1120-S. The software’s precision and ease of use are unmatched.
Mark T.Business Owner
Smart, fast, and reliable
The AI-driven features ensure every detail is correct, and the process is seamless from start to finish. X.TAX has earned our trust.
Sara K.Financial Analyst

Have Some Questions? We’ve Got Answers. 

The best S corporation tax software automates Form 1120-S, validates entries, and supports IRS-compliant eFiling like X.TAX.
S corporation tax returns are typically due March 15. Late filing penalties can apply per shareholder or September 15 if you file for an extension.

X.TAX simplifies this process, ensuring each shareholder gets accurate K-1s.

Yes. X.TAX prepares accurate Schedule K-1s for each shareholder.
Audit Protection – Extra Protection for Every Filing
 
Audit Protection gives X-TAX users expert support whenever a tax return is questioned or reviewed by the IRS or state agencies.
 
This add-on service provides professional guidance, document support, and clear instructions to help you handle audit situations with confidence and ease.
 
Key Benefits:
  • Expert guidance on IRS or state notices Helps you understand and resolve inquiries correctly.
  • Professional review of correspondence Ensures the right actions are taken on every notice.
  • Help preparing documentation Gathers what you need for audit responses.
  • Assistance drafting responses Clarifies information and communicates with tax authorities.
  • Error review and correction support Addresses issues if your filing triggers an audit.
  • Step-by-step progress tracking Follow updates inside X.TAX for full visibility.
 
Why It matters?
Audit Protection reduces stress, saves time, improves accuracy, and lowers the risk of penalties by ensuring users have expert help throughout the audit process. It provides peace of mind and stronger compliance for your business year-round.
With Tax Expert Review, your tax return is examined by a qualified tax professional before e-filing to ensure accuracy and completeness.
 
The reviewer checks for calculation errors, missing details, and potential issues that could lead to IRS or state rejection. 
 
You’ll receive clear guidance on how to correct any problems, helping you file confidently and avoid delays. 
 
Key Benefits:
  • Professional Return Review A trained tax expert reviews your return for accuracy, proper calculations, and completeness.
  • Error & Issue Detection Identifies missing information, inconsistencies, and common rejection triggers.
  • Compliance Check Ensures your forms, schedules, and data align with IRS and state filing standards.
  • Clear Correction Guidance Provides easy-to-follow instructions on updates needed before e-filing. 
  • Reduced Rejection Risk Professional review lowers the chance of delays or rejections by tax authorities.

 

Why It matters?

Tax Expert Review reduces stress, saves time, improves accuracy, and lowers the risk of penalties by ensuring users have expert help throughout the audit process. It provides peace of mind and stronger compliance for your business year-round.

Still Need Help? Contact Us Today