How support is calculated, modified, and enforced — from guidelines to college expenses.
Louisiana child support ranges from $43 to $8,783/month based on income. Learn 2026 guidelines, calculation formulas, and modification rules under La. R.S. 9:315.
Child support in Louisiana ends at age 18, or 19 if the child is a full-time high school student. Learn termination rules, emancipation, and disability exceptions under La. R.S. 9:315.22.
Use the Louisiana child support calculator to estimate payments. Louisiana uses the Income Shares Model under La. R.S. 9:315 with combined income up to $40,000/month.