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The Daily Insight

How does A S corporation file a tax return?

Author

Ava Robinson

Published Feb 14, 2026

Along with the Form 1120S, the S corporation is also responsible for preparing a separate K-1 for each shareholder to report their respective share of earnings and deductions on their own tax returns. To illustrate, suppose your S corporation has 10 equal shareholders and earns $1 million in revenue and reports $500,000 in deductible expenses.

When do chapter’s Corps file personal tax returns?

In most cases, the S corporation must attach 10 K-1s to the Form 1120S, each of which should report $100,000 in revenue and $50,000 in expenses to each shareholder. All of these forms are due to the IRS by the 15th day of the third month following the close of the tax year, which is usually March 15.

Can a LLC be taxed as a s Corp?

To be treated as an S-Corp, an election must be made by filing a form 2553 to elect S-Corporation status, which effectively makes your LLC an S-Corporation, subject to its rules for operation and filing. Thanks! Can a partnership elect to be taxed as an S corporation?

Why does A S corporation file a K-1?

This tax form is for informational purposes only and provides the IRS with an aggregate view of the business’ earnings and expenses. Along with the Form 1120S, the S corporation is also responsible for preparing a separate K-1 for each shareholder to report their respective share of earnings and deductions on their own tax returns.

What kind of tax form do I file for my business?

A corporation is a business that’s seen as an entity separate from its owner (s) that pays its own tax. Corporations file their taxes using Form 1120. Limited liability companies (LLCs) can also choose to be treated as a corporation by the IRS, whether they have one or multiple owners.

Do you have to file personal and business tax returns?

Yes, your personal and business tax returns will have to be filed separately. An LLC listed as an S-Corp is considered a separate legal entity and will require its own tax return to be filed — a 1120S form.

How to file 1120s’S corporation tax return?

TaxAct supports every state that requires Form 1120S S Corporation income tax returns. E-file for free and get notification via email and/or text as soon as your return has been processed by the state. Easily view and navigate to specific forms in your return.