Child Support Calculation Worksheet

IMPORTANT: THIS IS A PREPARATION GUIDE — NOT THE OFFICIAL COURT WORKSHEET

Alaska requires the use of official form DR-305 (Child Support Guidelines Affidavit) for child support calculations.
This template provides the substantive content and calculation methodology to help you
prepare — but you must transfer your figures to the official worksheet before filing.
The official form is available at https://courts.alaska.gov/shc/family/support.htm.
Do not file this document directly with the court.

CHILD SUPPORT CALCULATION WORKSHEET

State of Alaska — Civil Rule 90.3 Percentage of Income Model

Table of Contents

1. Case Information
2. Children Subject to This Order
3. Income Determination
4. Allowable Deductions
5. Adjusted Annual Income
6. Child Support Calculation
7. Shared and Divided Custody Adjustments
8. Health Insurance and Additional Expenses
9. Deviation Factors
10. Duration and Modification
11. State-Specific Notes
12. Sources and References

1. Case Information

2. Children Subject to This Order

Total Number of Children: [____]

Custody Arrangement:
☐ Primary Physical Custody
☐ Shared Physical Custody (each parent has physical custody for at least 30% of overnights)
☐ Divided Custody (each parent has primary custody of at least one child)
☐ Hybrid Custody

3. Income Determination

Noncustodial Parent — Annual Gross Income

Custodial Parent — Annual Gross Income (for shared custody calculation)

4. Allowable Deductions

Noncustodial Parent Deductions

5. Adjusted Annual Income

☐ Adjusted annual income exceeds $138,000
☐ Evidence presented for inclusion of income above $138,000: ☐ Yes ☐ No

6. Child Support Calculation

Primary Custody Percentage Schedule

Calculation

7. Shared and Divided Custody Adjustments

Shared Custody (Rule 90.3(b))

☐ Shared custody applies

Parent obligated to pay: ☐ Parent A ☐ Parent B
Monthly Amount: $ [________________________________]

Divided Custody (Rule 90.3(b))

☐ Divided custody applies

8. Health Insurance and Additional Expenses

9. Deviation Factors

☐ No deviation requested

☐ Deviation requested based on:

☐ Unusually large family size
☐ Especially large income of the obligor
☐ Health or other extraordinary needs of the child
☐ Unusually high or low expenses of the custodial parent
☐ Standard of living the child would have enjoyed absent separation
☐ Particular prior debts of either parent
☐ Tax consequences
☐ Other: [________________________________]

Proposed deviation amount: $ [________________________________]

Justification:
[________________________________]
[________________________________]

10. Duration and Modification

Duration of Support:

• Support continues until the child reaches age 18, or
• Age 19 if the child is still in high school
• ☐ Child is emancipated
• ☐ Child marries
• ☐ Child enters active military duty
• ☐ Other terminating event: [________________________________]

Modification:

☐ This is a modification of a prior order dated [__/__/____]
☐ Existing order amount: $ [____________] per month
☐ Recalculated amount: $ [____________] per month
☐ Change exceeds 15%: ☐ Yes ☐ No

11. State-Specific Notes

1. Percentage of Income Model: Alaska uses a Percentage of Income model focused primarily on the noncustodial parent's income, unlike Income Shares states that combine both parents' incomes.

2. Income Cap: The standard calculation applies to the first $138,000 of adjusted annual income. Income above this threshold requires separate evidence and court determination.

3. Permanent Fund Dividend: The Alaska Permanent Fund Dividend is included in gross income for child support calculation purposes.

4. Shared Custody Threshold: Shared custody provisions apply when each parent has physical custody for at least 30% of overnights annually (approximately 110 nights).

5. Military Allowances: Non-housing military allowances (BAS, COLA, hazard pay) are included in gross income. BAH is generally excluded.

6. Legislative Changes: The Alaska Legislature has considered revisions to Rule 90.3 (see SB 46). Practitioners should verify current rule status.

12. Sources and References

• Alaska Civil Rule 90.3 — Child Support Awards
• DR-310: How to Calculate Child Support Under Rule 90.3
• Alaska Courts — Child Support Forms and Information
• Alaska Statutes Title 25 — Marital and Domestic Relations

CERTIFICATION

I declare under penalty of perjury that the information provided in this worksheet is true and correct to the best of my knowledge.

Parent A Signature: [________________________________] Date: [__/__/____]

Parent B Signature: [________________________________] Date: [__/__/____]

Attorney for Parent A: [________________________________] Bar #: [____________]

Attorney for Parent B: [________________________________] Bar #: [____________]