Hawaii Child Support Calculator

How Child Support Is Calculated in Hawaii

Hawaii uses the Child Support Guidelines Worksheet (CSG Worksheet), a Melson-style model that first protects each parent's basic needs, then funds the children's primary needs, and finally shares any remaining income with the children. Each parent contributes toward the total support obligation in proportion to their share of the parents' combined income.

The Hawaii Worksheet Steps

• Monthly Net Income. Hawaii converts each parent's gross income to a "Guidelines Net Income" using the official Table of Incomes, which builds in taxes and a poverty-level self-support reserve. Enter that net figure above.
• Primary Child Support Need. The children's basic need is set at $455 per child (based on Hawaii federal poverty guidelines), plus actual child care and health insurance costs.
• Standard of Living Adjustment (SOLA). Income remaining after the self-support reserve and the primary need is shared with the children at 10% per child, capped at 30% (1 child = 10%, 2 = 20%, 3 or more = 30%).
• Proportional Share. The total obligation is split between the parents in proportion to each parent's share of combined net income. The paying parent owes their share.

Hawaii — Frequently Asked Questions

What is the minimum child support in Hawaii?

The Hawaii guidelines set a presumptive minimum support obligation of $91 per child per month.

Why does Hawaii ask for net income?

Hawaii's worksheet is built on a "Guidelines Net Income" that the court derives from gross income using an official Table of Incomes. That table accounts for federal and state taxes and a poverty-level self-support reserve, so the net figure is the correct starting point for the calculation.

What are the Hawaii SOLA percentages?

The Standard of Living Adjustment is 10% of remaining income for each child, up to a maximum of 30%: 10% for one child, 20% for two, and 30% for three or more.

Estimate only. This tool applies the Hawaii Child Support Guidelines worksheet math to the net income you enter and does not reproduce the full Table of Incomes or shared-custody worksheets. For a binding order, use the Judiciary's official worksheet or consult the Hawaii CSEA or a family law attorney.