Alaska Child Support Calculator

Free instant estimate based on Alaska's Percentage of Income model (Civil Rule 90.3)

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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 Alaska Calculates Child Support

Alaska calculates child support using the Percentage of Income method as defined in Civil Rule 90.3. Unlike most states that use an Income Shares model, Alaska applies a fixed percentage of the non-custodial parent's adjusted annual income. The percentage scales with the number of children: 20% for one child, 27% for two, 33% for three, 36% for four, and at least 38% for five or more children.

Adjusted annual income is calculated by taking the non-custodial parent's gross income from all sources and subtracting federal income taxes, Social Security taxes, Medicare taxes, health insurance premiums for the child, and mandatory union dues. Notably, Alaska has no state income tax, which means parents retain more of their gross income compared to most other states.

Courts may deviate from the guideline percentages when applying them would be unjust. Factors considered include the child's special needs, the financial resources of both parents, the standard of living the child would have enjoyed, and any extraordinary expenses related to the child's education or healthcare. Shared custody adjustments apply when a parent has over 30% of overnights.

Frequently Asked Questions

How does Alaska calculate child support under the Percentage of Income method?
Alaska uses a Percentage of Income model under Civil Rule 90.3. The non-custodial parent pays a percentage of their adjusted annual income: 20% for one child, 27% for two children, 33% for three children, 36% for four children, and at least 38% for five or more children. There is no income cap.
Does Alaska have an income cap for child support?
No. Unlike most states, Alaska has no statutory income cap on child support. The percentage is applied to the non-custodial parent's entire adjusted annual income, regardless of how high the income is.
What counts as adjusted annual income in Alaska?
Adjusted annual income includes all wages, salary, commissions, bonuses, self-employment income, interest, dividends, rental income, pensions, and Social Security benefits, minus federal income taxes, Social Security taxes, Medicare taxes, health insurance premiums for the child, and mandatory union dues. Alaska has no state income tax.
How does shared custody affect Alaska child support?
Alaska provides a shared custody adjustment when a parent has more than 30% of overnights (over 110 overnights per year). The adjustment reduces the support obligation to account for the direct costs the parent incurs while the child is in their care during those overnights.
Can Alaska 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 changes in income, custody arrangements, or 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.