Need to calculate child support in Tennessee? Use this free and simple Tennessee Child Support Calculator to estimate monthly support payments based on TN child support guidelines. Updated for 2025, our calculator considers both parents’ income, number of children, and custody percentages.

How to Use This Calculator

  1. Enter each parent’s monthly gross income

  2. Add the number of children shared

  3. Input the percentage of time Parent 1 has custody

  4. Click “Calculate Support” to get your monthly estimate

Need to calculate support in a different state? Try our 

Pennsylvania Child Support Calculator

Texas Child Support Calculator

Florida Child Support Calculator

Why Use a Tennessee Child Support Calculator?

Tennessee’s child support laws follow an “income shares” model, which considers both parents’ incomes and parenting time. This tool is helpful because it allows you to:

  • Estimate payments before you go to court.

  • Prepare for mediation or legal discussions.

  • Understand financial responsibilities clearly.

  • Plan ahead with accurate numbers.

Tennessee Child Support Calculator

FAQ – Tennessee Child Support

Q. How accurate is this Tennessee child support calculator?
A. It offers a close estimate using typical TN guidelines. For legal use, consult a family law attorney or the Tennessee Department of Human Services.

Q. What if we split custody 50/50?
A. Equal time can reduce payments but doesn’t always eliminate them. Income differences still matter.

Q. Does this apply if one parent is unemployed?
A. TN may impute income to unemployed parents, assuming a minimum earning potential.

⚠️ Disclaimer: This calculator provides an estimate based on typical calculations. Actual support amounts may vary depending on your court case, deductions, health insurance, childcare expenses, and other factors.