Alaska Child Support Calculator
Calculate child support in Alaska using the state's official Percentage of Income Model. Includes custody adjustments, health insurance credits, and childcare deductions.
Alaska divorces typically cost 22% less than the national average of $12,900.
Child Support in Alaska
- Formula
- Percentage of Income Model
- Income cap
- None specified
- Equal parenting presumption
- No
- Property system
- Equitable distribution
Child Support Calculator in Alaska: What You Should Know
Alaska is one of a small group of states that uses the Percentage of Income Model, applied to the paying parent's adjusted annual income under Civil Rule 90.3. The guideline rates are set by rule: 20 percent for one child, 27 percent for two, 33 percent for three, and higher for additional children. Adjusted income means gross income minus taxes and certain mandatory deductions, so the percentage applies to a figure below gross pay. Because the calculation looks only at the paying parent's income rather than both incomes combined, Alaska support is simpler to estimate than in income shares states. Shared and divided custody arrangements use separate formulas that can lower the primary calculation.
Key point: Alaska applies a flat percentage of the paying parent's adjusted income under Civil Rule 90.3: 20 percent for one child, 27 percent for two, and 33 percent for three.
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Locked to Alaska on this page.
Use your gross (before-tax) monthly income. If you are paid annually, divide by 12.
Use their gross (before-tax) monthly income. If they are paid annually, divide by 12.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.
Child Support in Alaska - Frequently Asked Questions
How is child support calculated in Alaska?
Alaska uses the Percentage of Income Model to calculate child support. Child support is calculated as a fixed percentage of the paying parent's gross income, ranging from 20% for one child upward for additional children.
Can child support be modified in Alaska?
Yes. Either parent can request a child support modification if there has been a substantial change in circumstances, such as a significant change in income, change in custody arrangements, or changes in the child's needs. Courts in Alaska typically require a change of at least 15-20% in the support amount to justify modification.
Does custody arrangement affect child support in Alaska?
Yes. Parenting time is a significant factor in child support calculations. When a parent has the children for a substantial portion of time (typically 40% or more overnights per year), child support is adjusted to reflect the additional direct costs that parent bears.
Is there an income cap for child support in Alaska?
Alaska does not set a specific income cap in its child support formula. However, courts have discretion to deviate from the guideline amount in cases with very high incomes.
How long does child support last in Alaska?
Child support in Alaska typically continues until the child turns 18 or graduates from high school, whichever is later. Support may continue longer if the child has a disability or if the parents agree to extend support for college expenses.
This estimate is for planning purposes only and does not constitute legal or financial advice. Consult a licensed family law attorney in your state for guidance specific to your situation.