About the Project
Last Updated: April 2026
The LLC vs S-Corp Tax Calculator is an independent small-business tax research project. Our goal is to provide freelancers, consultants, and solo entrepreneurs with a transparent, high-precision utility for estimating the potential tax implications of their business structure decisions.
This calculator is designed for educational estimates and is not a substitute for CPA, Enrolled Agent (EA), attorney, or tax professional advice. Tax laws are complex, subject to interpretation, and vary significantly by individual situation and jurisdiction.
Our Mission
Deciding whether to elect S-Corporation status is one of the most consequential financial decisions a small business owner can make. Most tools available online are either overly simplified (ignoring state taxes and maintenance costs) or are designed to "sell" a specific filing service.
Our mission is to provide a transparent, data-backed utility that shows you the "math behind the switch" so you can have a more informed and productive conversation with your qualified tax professional.
Why Transparency Matters
We believe that financial tools should not be "black boxes." That is why we provide a detailed Methodology Page that lists our formulas, assumptions, and data sources. We want you to see exactly how your estimated savings are being calculated, including the often-overlooked costs of corporate maintenance and state income tax brackets.
Independent Research
All content and logic on this site are researched against current IRS guidelines and state tax publications. We do not accept payment from payroll providers or tax filing services to influence our calculator results. Our priority is accuracy and educational value for the small business community.
How Content Is Created
Each guide starts with a real small-business tax planning question, such as how self-employment tax works, when an S-Corp election may be worth reviewing, or how reasonable salary affects the estimate. We then connect that question back to the calculator logic, published tax guidance, and the limitations listed in our methodology.
We do not present the calculator result as tax advice. Pages are written to help readers understand the moving parts before they speak with a CPA, enrolled agent, tax attorney, payroll provider, or other qualified professional.
Read the full Editorial Standards for how we handle updates, corrections, sources, and advertising disclosures.
Why These Pages Exist
The site has one primary purpose: helping US small business owners compare default LLC taxation with S-Corp election scenarios. New pages are added only when they support that purpose. We avoid unrelated finance topics, generic news posts, and thin pages that do not help someone understand the calculator or the decision behind it.
Contact & Feedback
We are constantly refining our models to reflect the latest tax year changes. If you notice a bug or have feedback on our methodology, please reach out via our Contact Page.