Alaska Child Support Calculator
Calculate estimated child support using Alaska's official guidelines
About Alaska's Guidelines
Percentage of Income Model based on adjusted net income
Note: Uses adjusted annual income, rates vary by number of children
Key Information
- •Model: Percentage of Income
- •Last Updated: January 15, 2024
Common Deviation Factors
Monthly Income
Alaska uses the Percentage of Income model — only the non-custodial parent's income is used. Enter both incomes and we'll determine the calculation based on your custody time.
Children & Custody
Additional Monthly Expenses
Estimates only — not legal advice. Consult a Alaska family law attorney for official calculations.
Official Alaska Court Forms
Download official court forms from the Alaska judiciary website. These are free, legally valid forms for your family court case.
Child Support Forms
Official petitions & worksheets
Modification Forms
Request changes to orders
Parenting Plan
Custody & visitation schedule
These links go to official Alaska court websites. Forms are free and provided by the state judiciary.
Alaska Child Support Guidelines
Alaska uses the Alaska Civil Rule 90.3 to determine child support obligations. Under the Percentage of Income model, a fixed percentage of the non-custodial parent's adjusted gross income is applied based on the number of children. This approach focuses primarily on the paying parent's ability to contribute.
Alaska has several distinctive features in its child support system. Alaska uses adjusted annual income — includes PFD (Permanent Fund Dividend) as income for both parents. Higher cost of living in Alaska results in higher self-support reserves than most states. Military BAH and other allowances are counted as income for child support purposes.
Alaska bases calculations on adjusted gross income — gross income minus specific allowable deductions defined by state guidelines. This approach balances between gross and net income methods. The self-support reserve in Alaska is $1,600/month, ensuring the paying parent retains enough income to cover basic living expenses.
How Alaska Calculates Child Support
Alaska follows a 6-step process under the Alaska Civil Rule 90.3:
- 1
Calculate the non-custodial parent's total annual income from all sources, including PFD payments
- 2
Subtract mandatory deductions: federal and state taxes, Social Security, Medicare, retirement (mandatory only)
- 3
Apply the percentage based on number of children (20% for one child, 27% for two, etc.)
- 4
Divide by 12 to get monthly obligation
- 5
If shared custody applies (110+ overnights), calculate each parent's obligation and offset
- 6
Court may deviate for hardship or if amount is manifestly unjust
Income Thresholds & Key Numbers in Alaska
Minimum Income Threshold
$0/mo
Self-Support Reserve
$1,600/mo
Federal Poverty Guideline
$1,573/mo
Shared Custody Threshold
110 nights/yr
30% of overnights
Income Basis
adjusted gross
Support Percentages by Number of Children
20%
1 child
27%
2 children
33%
3 children
36%
4 children
39%
5 children
42%
6 children
Custody Time Adjustments in Alaska
Alaska recognizes "Shared Physical Custody" when the non-custodial parent has the children for at least 110 overnights per year (approximately 30% of the time). When this threshold is met, the standard child support formula is adjusted to reflect the increased direct expenses borne by both parents.
Under Alaska's Percentage of Income approach, shared custody adjustments offset each parent's calculated obligation against the other's. Each parent's support is computed independently, and the parent with the higher obligation pays the difference to the other parent.
Below 110 overnights, Alaska generally treats the arrangement as a sole custody situation with standard visitation, and no custody time adjustment is applied to the child support calculation.
Frequently Asked Questions About Alaska Child Support
Does the Alaska PFD count as income for child support?
What percentage of income is child support in Alaska?
How does shared custody work in Alaska?
How to Reduce Child Support Costs in Alaska
While child support is determined by Alaska's guidelines, there are legitimate ways to ensure your obligation is calculated fairly.
Increase Parenting Time
In Alaska, more overnights with your children can reduce your support obligation. Document actual time spent and request a formal custody modification if needed.
Ensure Accurate Income Reporting
Both parents' incomes must be reported accurately. Verify that bonuses, overtime, and variable income are averaged correctly over the appropriate period.
Claim All Allowable Deductions
Alaska allows deductions for items like mandatory retirement contributions, union dues, and health insurance premiums. Make sure all qualifying deductions are included.
Request a Modification When Eligible
If your income has decreased by 15-25% or more, you may qualify for a modification. File promptly — changes are typically not retroactive before the filing date.
Account for Other Children
If you have other children you're legally obligated to support, this can be factored into the calculation as a deduction in most states.
Review Healthcare & Childcare Costs
Ensure shared expenses like health insurance and childcare are divided proportionally. If costs have changed, update the court.
Key Facts About Child Support in Alaska
Calculation Model
Percentage of Income
Guidelines Source
State Statute
Review Frequency
Every 4 Years
Last Updated
January 15, 2024
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