Alaska child support laws require both parents to support their children financially, and the amount is set by a percentage-of-income formula under Alaska Civil Rule 90.3. The paying parent’s adjusted annual income is multiplied by a fixed percentage that scales with the number of children, and the state has broad tools to collect if payments fall behind.
Who Owes Support
Biological and adoptive parents both owe a duty of financial support. That duty exists whether the parents were ever married, are separated, are divorced, or were never in a relationship. The trigger is parentage, not the parents’ relationship with each other. The obligation ends only when parental rights are legally terminated, such as through adoption.
In sole custody cases, the non-custodial parent pays the custodial parent. In shared custody cases, support flows from the higher-earning parent to the lower-earning one, adjusted for time with the children. A parent who lives outside Alaska still owes support; the Uniform Interstate Family Support Act allows enforcement across state lines.
If paternity is disputed, it must be established before support can be set. A parent can sign a voluntary Affidavit of Paternity (often at the hospital), the Child Support Services Division (CSSD) can establish it administratively, or a parent can file a court complaint requiring clear and convincing evidence.1Alaska Court System. Paternity A putative father served with administrative notice must submit to genetic testing within 45 days.2Justia. Alaska Code 25-27-165 – Determination of Paternity in an Administrative Proceeding
How the Amount Is Calculated
The formula under Rule 90.3 is mechanical. Start with the paying parent’s adjusted annual income, apply the percentage that matches the number of children, and that is the base support amount:
- One child: 20% of adjusted annual income
- Two children: 27%
- Three children: 33%
- Each additional child: add 3%
These percentages apply up to $138,000 of adjusted annual income. Above that cap, the court has discretion to order additional support if the children’s needs and standard of living justify it, but the formula no longer runs automatically.3Alaska Court System. Alaska Rules of Civil Procedure Rule 90.3 – Child Support Awards
What Counts as Income
Alaska defines income broadly. The Rule 90.3 Commentary lists 28 categories and calls the list non-exhaustive. It captures wages, overtime, tips, commissions, bonuses, self-employment earnings, rental income, interest and dividends (including Permanent Fund Dividends), Social Security, veterans’ benefits, workers’ compensation, unemployment, pensions, annuities, trust income, capital gains that recur as income, and even employer-provided housing or transportation that reduces living expenses.4Alaska Court System. Alaska Civil Rule 90.3 Commentary
The court adds up total income from all sources and subtracts mandatory deductions to reach adjusted annual income. Salaried parents document this with pay stubs and tax returns. Self-employed parents produce financial records showing actual earnings. If a parent is voluntarily unemployed or underemployed, the court can impute income based on what that parent could reasonably earn, which prevents someone from quitting a job to shrink the obligation.
Low-Income Floor
Parents earning $30,000 or less per year get a built-in adjustment. For them, the adjusted annual income used in the formula is the lesser of two amounts: the standard adjusted income after deductions, or total income minus $7,500. The floor leaves enough for basic living expenses before support is calculated.3Alaska Court System. Alaska Rules of Civil Procedure Rule 90.3 – Child Support Awards
Shared Custody
When both parents have significant overnight time, the math shifts under Rule 90.3(b). The court figures out what each parent would owe the other under the sole custody formula, multiplies each amount by the percentage of time the other parent has physical custody, and the parent who owes more pays the difference.3Alaska Court System. Alaska Rules of Civil Procedure Rule 90.3 – Child Support Awards If overnight percentages don’t accurately reflect what each parent actually spends on the children, the court can adjust the ratio.
Costs Beyond the Base Amount
The formula covers routine costs. Some expenses get handled separately, typically divided in proportion to each parent’s income. Health insurance is mandatory if available at reasonable cost through a parent’s employer, and the parent who carries the coverage receives a credit toward their support obligation. Uninsured medical expenses (co-pays, dental, prescriptions) and work-related or school-related childcare are also commonly shared. Extraordinary expenses tied to a child’s disability or specialized educational needs can factor in when the court finds them appropriate given the child’s needs and the parents’ finances.
Changing an Existing Order
Support orders can be modified when a parent shows a material change in circumstances. The usual benchmark: if recalculating support under current income would produce a number at least 15% different from the existing order, that qualifies.5Alaska Court System. Modifying Child Custody or Child Support Order A move from sole custody to shared custody, or the reverse, also qualifies because it changes the applicable formula.
A parent can request modification through CSSD administratively or by filing in court. Either way requires documentation: pay stubs, tax returns, medical records, or proof of changed custody. Parents who agree can submit a written stipulation for court approval. If they disagree, a hearing decides. The agency must grant a hearing when the petition shows good cause and a material change in circumstances.6FindLaw. Alaska Code 25-27-190 – Modification of Administrative Finding or Decision
Even without a material change, periodic review and modification can happen if the current order hasn’t been modified in the preceding three years. That complies with federal requirements and lets parents refresh orders that have grown stale.
Enforcement
Alaska does not wait for arrears to pile up before acting. Most enforcement runs automatically once payments fall behind.
Wage Withholding
Income withholding is the default. Once an employer receives a withholding order, it must immediately begin deducting the specified amount. Withholding reaches wages, unemployment benefits, workers’ compensation, and Social Security. An employer that ignores an order is liable for the full amount owed, and firing or disciplining an employee because of a withholding order carries a civil penalty of up to $1,000.7FindLaw. Alaska Code 25-27-062 – Income Withholding Order for Support
Permanent Fund Dividend, Tax Refunds, Lottery Winnings
CSSD can intercept a parent’s annual PFD payment to cover past-due support. Tax refunds and lottery winnings are also subject to interception.
License Suspensions
CSSD can suspend a driver’s license, professional license, or recreational license once arrears cross certain thresholds. A case qualifies when the parent owes at least four times the monthly support amount, or owes $1,000 or more with no payment in 60 days.8Alaska Child Support Services. Licensing FAQ Recreational licenses can also be suspended as part of a criminal nonsupport sentence.9Justia. Alaska Code 12-55-139 – Penalties for Criminal Nonsupport and Aiding Nonpayment of Child Support
Passport Denial
Parents who owe more than $2,500 in past-due support are reported to the U.S. State Department, which will deny new passport applications and can revoke existing passports when the parent next presents one for service.10Administration for Children and Families. Passport Denial Program 101
Criminal Charges
Persistent nonpayment can lead to criminal nonsupport charges under Alaska Statute 11.51.120, and Alaska separately criminalizes helping someone avoid child support payments. These cases can carry jail time, fines, and additional license restrictions. Criminal enforcement is rare compared to administrative tools but sits behind them as a backstop.
When the Obligation Ends
Child support generally ends when the child turns 18. If the child is still attending high school and living with a parent, support continues until graduation or age 19, whichever comes first. A child who marries or is otherwise legally emancipated before 18 ends the obligation early.
For children with disabilities that prevent self-sufficiency, a parent can petition for support that extends past the normal cutoff. Alaska courts have ordered post-majority support where a child’s disability makes independent living impossible.11Justia. Alaska Code 25-24-160 – Judgment The statute gives courts broad discretion to order payments for a child’s “nurture and education,” and Alaska case law has confirmed this extends to adult children with severe disabilities.
Do not stop paying unilaterally, even if you believe the child has aged out. An order remains enforceable until it is formally modified or terminated. Stopping on your own creates arrears that trigger every enforcement tool above, and back support does not disappear just because the child eventually turns 19.
Tax Treatment
Child support is tax-neutral under federal law. The paying parent cannot deduct the payments, and the receiving parent does not report them as income.
The dependency claim is separate. The custodial parent generally claims the child, but can release the claim to the non-custodial parent by filing IRS Form 8332. The release can cover a single year or multiple years, and the custodial parent can revoke it, with revocation taking effect the following tax year. The release only works if both parents together provide more than half the child’s support and the child does not live with someone else for more than six months of the year.