Official Rule 90.3 Percentage-of-Net-Income Estimate
Alaska calculates child support based on Civil Rule 90.3. The model is a "Percentage of Net Income" approach where the court identifies the non-custodial parent's (obligor) adjusted annual net income. This income is then multiplied by a fixed percentage depending on the number of children. Note that Alaska imposes a significant high-income cap on the adjusted income used for these calculations.
(Numbers below are illustrative only, not official figures)
Effective October 16, 2023, the Alaska high-income cap was increased to $138,000 in adjusted annual net income. This breaks down to $11,500 per month. Support percentages are typically applied only to income up to this amount.
Adjusted income includes all sources of income (wages, bonuses, overtime, dividends) minus mandatory deductions. Allowable deductions under Rule 90.3 include federal taxes, Social Security, Medicare, mandatory retirement contributions, and mandatory union dues.
The standard guidelines are: 20% for one child, 27% for two children, and 33% for three children. For each additional child thereafter, the percentage increases by exactly 3% (e.g., 36% for four children).
Yes. If a parent has "Shared Custody" (residing with the child for at least 30% of the year, or roughly 110 overnights), Alaska uses a specialized shared-custody formula that considers both parents' incomes and the exact percentage of time spent with each.
Child support generally ends when a child turns 18 or is emancipated. However, support may continue until the child graduates from high school (or reaches age 19) if they are still attending school and living at home.
Estimate only. This page is an educational tool. For a binding order, consult the Alaska Court System, CSSD, or a qualified family-law attorney.