Smarter S-Corp Returns. Shareholders Sorted Automatically.
From wages and basis to shareholder K-1s — X.TAX handles the hard parts of your 1120S before you ever hit file.
schedule k-1
Enter your books just once. We allocate every item by ownership and produce a clean K-1 for each shareholder.
Allocate automatically
pro-rata math by ownership and holding period
Basis carried forward
stock and debt basis tracked return to return
S-Corp Specific
Separately stated items
the line items that can't be lumped into ordinary income
Mid-year changes handled
stock sales and admissions prorated to the day
Why S-Corps don't go back
Built to simplify S-corp filing while keeping costs predictable.
Basis That Actually Carries Forward
Stock and debt basis carries from year to year, so every shareholder's K-1 starts from the right number.
Compensation Risk, Flagged Early
We flag low officer compensation relative to distributions before you file, a common IRS audit trigger for S-corps.
Built for Form 1120-S
Every workflow is designed for S corporations: shareholder allocations, basis and officer pay.
How it works
From financials to filed – In four steps
From first click to IRS acceptance - no manual data entry, no guesswork.
01
Add Your Financials, Your Way
Enter manually, upload your files, or connect your accounting software.
Secure Setup
Import Data
02
Add Shareholders
Review income, deductions, wages, and tax adjustments.
Shareholder Details
Capital Accounts
03
Review K-1s
Verify allocations, stock basis, distributions, and K-1 details.
Basis Check
Confirm K-1s
04
E-File with IRS
Submit your Form 1120-S and shareholder K-1s to the IRS.
IRS Authorized
Secure Filing
Ready to File Your Return?
Get started in minutes and only pay when you're ready to file.
pricing
Priced per return, not per headache
Know exactly what you'll pay before you file. No hourly CPA fees, surprise invoices, or hidden charges. Customize your filing with optional services and instantly see your total cost.
IRS-authorized e-filing included
Automatic Schedule K-1 generation included
Transparent flat-rate pricing starts at $159
State filing support available for $49
Expert review and audit protection available as add-ons
Average savings
Save an average of $2,241 per filing compared to traditional CPA preparation and filing costs.
Estimate Your Filing Cost
No payment until you're ready to file
faq
Frequently asked questions
What information do I need to file Form 1120-S?
When is Form 1120-S due?
Can I e-file Form 1120-S with X.TAX?
How are shareholder Schedule K-1s handled?
What if I need more time to file my S corporation return?
Can I amend a filed Form 1120-S?
Still have questions?
IRS Authorized e-File Provider
Let's Get Your S-Corp Filed
File your 1120-S with fast, accurate, IRS-authorized e-filing.
No payment until you file
IRS-authorized e-file
One Flat Price
