Hawaii Child Support Calculator

Free instant estimate based on Hawaii's modified Melson Formula (HRS §576D)

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Select a state and enter your monthly gross income to see an estimated child support payment based on net income.

How Hawaii Calculates Child Support

Hawaii calculates child support using a modified Melson Formula as defined in HRS §576D. This three-step formula first ensures each parent retains enough income for their basic needs through a primary support need of $1,250/month (2024). Then child support is calculated from the remaining income. Finally, a standard of living adjustment ensures children share in their parents' prosperity.

Both parents' incomes are considered at every step of the calculation. Hawaii recognizes the unique income structures of military members and federal employees, including military allowances like BAH and BAS in the income calculation. The poverty level reserve of $1,380/month (2024) provides additional protection for low-income obligors.

Courts may deviate from the formula results for good cause shown. Factors considered include the child's special needs, extraordinary medical or educational expenses, the high local cost of living, and any other circumstances that make the formula result unjust or inappropriate.

Frequently Asked Questions

How does Hawaii's modified Melson Formula calculate child support?
Hawaii's modified Melson Formula works in three steps. First, each parent retains a primary support need of $1,250/month (2024) for their own basic expenses. Second, child support is calculated from the remaining income. Third, a standard of living adjustment ensures children share in additional parental income.
What is the primary support need in Hawaii?
Hawaii's primary support need is $1,250 per month (2024). Each parent is entitled to keep this amount for their own basic living expenses before child support is calculated. This higher threshold reflects Hawaii's elevated cost of living.
What income counts for Hawaii child support?
Hawaii counts gross income from all sources including wages, salaries, bonuses, self-employment income, interest, dividends, rental income, Social Security benefits, and military pay (including BAH and BAS). Hawaii has a state income tax of up to 11%, which is deducted. The poverty level reserve is $1,380/month (2024).
Does Hawaii have special rules for military members?
Yes. Hawaii has specific provisions for military members and federal employees, recognizing the unique income structures. Military pay components including Basic Allowance for Housing (BAH), Basic Allowance for Subsistence (BAS), and other military allowances are included in the income calculation.
Can Hawaii child support be modified?
Yes. Either parent can request a modification if there has been a material change in circumstances since the last order. This includes significant income changes, changes in custody, deployment or reassignment of a military parent, or changes in the child's needs.

Important Legal Disclaimer

The information provided on SupportCalc is for general informational and educational purposes only. Nothing on this website should be taken as legal advice. Child support calculations are estimates based on publicly available state guidelines and may not reflect the exact amount ordered by a court. Every case is unique, and many factors can affect the final support order. Please consult with a qualified family law attorney in your jurisdiction for advice specific to your situation.