Last Updated: September 26, 2026
Welcome to SupportCalcUSA.com, a free informational resource dedicated to helping parents, guardians, and families understand how child support is estimated across the United States.
Our Mission
Child support guidelines vary significantly by state, income type, and custody arrangements. Official state calculators are often difficult to use, outdated, or confusing. Our mission is to simplify this process by providing a clean, fast, and easy-to-understand estimator based on publicly available state guideline information.
What We Do (And What We Don’t Do)
We DO:
- Provide free child support estimate calculators based on general formulas like the Income Shares Model and Percentage of Income Model used by many states.
- Publish educational guides explaining terms like gross income, net income, custody time, health insurance add-ons, and modification rules.
- Organize information state-by-state so you can find the relevant guideline for California, Texas, Florida, New York, and all 50 states.
We DO NOT:
- Provide legal advice, financial advice, or accounting advice.
- Represent any state child support enforcement agency, court, or government entity. We are an independent private website.
- Create an attorney-client relationship. For legal decisions, please consult a qualified family law attorney in your state.
How Our Calculators Work
Our calculators use general formulas derived from publicly published state guidelines. They are for informational and educational purposes only. Courts consider many additional factors including, but not limited to, existing court orders, special needs, childcare costs, health insurance premiums, and local court rules which our tool may not fully capture. Therefore, our results are ESTIMATES only.
Our Commitment to Accuracy
We strive to keep our content updated for 2026 guidelines. However, laws change. We review our state pages regularly. If you notice an error, please contact us at our Contact page. We will correct it promptly.
Who We Are:
SupportCalcUSA.com is operated by an independent team focused on family law technology and public legal education. We are not attorneys. Our content is reviewed for general accuracy but is not reviewed by a bar association.
For any questions, please use our Contact page.