Alaska child support calculator

How Alaska calculates child support

• Each parent’s adjusted annual income is total income from all sources minus the deductions Civil Rule 90.3 allows: income and payroll taxes, mandatory union dues and retirement contributions, voluntary retirement up to 7.5% of income, support ordered for prior children or a former spouse, work-related child care for these children, the parent’s own health insurance (up to 10% of income) and life insurance for the children or the other parent (up to $1,200 a year).
• A parent with total income of $30,000 or less uses the smaller of that figure and total income minus $7,500. Adjusted income above $138,000 a year is not counted (figures effective October 16, 2023).
• With primary custody, the other parent pays 20% of adjusted income for one child, 27% for two, 33% for three and 3% more for each additional child, at least $50 a month.
• With shared custody (each parent has the children at least 30% of the year, 110 overnights), each parent’s amount is weighted by the other parent’s time, the two are offset and the difference is multiplied by 1.5, but never more than the primary-custody amount.
• The cost of the children’s health insurance is shared equally by adjusting the monthly payment.

What the calculator asks

• How many children is the support for?
• Do all of the children follow the same parenting schedule?
• How many overnights a year will the children spend with you?
• Your total income for the year
• Federal, state and local income tax you pay for the year
• Social Security (or self-employment), Medicare and state unemployment (SUI) tax you pay for the year
• Mandatory union dues you pay for the year
• Mandatory retirement or pension contributions you pay for the year
• Voluntary retirement contributions you pay for the year (401(k), IRA, TSP and similar)
• Court-ordered child support for older children from another relationship, and court-ordered spousal support to a former spouse, that you pay each year
• Work-related child care for the children in this case that you pay each year
• Health, dental and vision insurance premiums you pay each year for your own coverage
• Life insurance premiums you pay each year for a policy that benefits these children or the other parent
• The other parent’s total income for the year
• Federal, state and local income tax the other parent pays for the year
• Social Security (or self-employment), Medicare and state unemployment (SUI) tax the other parent pays for the year
• Mandatory union dues the other parent pays for the year
• Mandatory retirement or pension contributions the other parent pays for the year
• Voluntary retirement contributions the other parent pays for the year (401(k), IRA, TSP and similar)
• Court-ordered child support for older children from another relationship, and court-ordered spousal support to a former spouse, that the other parent pays each year
• Work-related child care for the children in this case that the other parent pays each year
• Health, dental and vision insurance premiums the other parent pays each year for their own coverage
• Life insurance premiums the other parent pays each year for a policy that benefits these children or the other parent
• Does either parent have children from another relationship, born or adopted before these children, who live with that parent at least 30% of the time?
• What you pay each month to cover these children on health insurance
• What the other parent pays each month to cover these children on health insurance

It never asks for names, Social Security numbers or account numbers, and your answers are not saved.

What the estimate leaves out

• The extended visitation credit of up to 75% for visits of more than 27 consecutive days, which the court may allow
• Variations the court may make for good cause, including in divided or hybrid custody
• An additional award on adjusted income above $138,000, which the court may make
• Seasonal or unequal payment schedules, and payments spread over fewer than 12 months
• Travel expenses for visitation and uncovered health care costs, which the court allocates separately

When a situation is outside what the calculator covers, it says so and points you to the official worksheet instead of guessing.

Official sources

• Alaska Civil Rule 90.3 and Commentary (Alaska Rules of Court, Rules of Civil Procedure)
• Alaska Supreme Court Order No. 2004 amending Civil Rule 90.3, effective October 16, 2023
• Child Support Guidelines Affidavit, DR-305 (6/25)
• Shared Custody Child Support Calculation, DR-306 (9/23)
• Alaska Court System Self-Help Center: Child Support

Alaska Court System child support forms (DR-305, DR-306, DR-307, DR-308) →