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How is child support calculated in Virginia?

Federal & State Law Editorial TeamLast reviewed: 2026-04-30

Virginia child support is governed by Va. Code § 20-108.2 (sole custody guideline) and § 20-108.2(G) (shared-custody guideline).

1. Sole Custody Calculation (§ 20-108.2(B))

  • Determine monthly gross income of each parent.
  • Combine them.
  • Read the Basic Child Support Obligation from the Schedule in § 20-108.2(B).
  • Each parent owes a pro rata share by income.
  • Add work-related childcare and health insurance premium to the basic obligation; allocate by income share.
  • The non-custodial parent's share becomes the order.
  • 2. Shared Custody Calculation (§ 20-108.2(G)(3))

    When each parent has the child for more than 90 days per year, the shared-custody formula applies:

  • Multiply the basic obligation by 1.4 (reflecting duplicated household costs).
  • Each parent owes their pro-rata share for the days the other parent has the child.
  • The lower amount is subtracted from the higher; the difference is the shared-custody support.
  • 3. Split Custody (§ 20-108.2(G)(2))

    When each parent has primary custody of at least one of the children, separate calculations are run for each child and offset.

    4. Gross Income (§ 20-108.2(C))

    Includes salaries, wages, commissions, royalties, bonuses, dividends, severance, pensions, capital gains, Social Security, workers' compensation, disability/insurance benefits, gifts, prizes, awards. Excludes child support received and benefits from public assistance.

    5. Imputation (§ 20-108.1(B)(3))

    Court may impute income on voluntary unemployment or underemployment based on recent work history, occupational qualifications, and prevailing earnings in the community.

    6. Duration (Va. Code § 20-124)

    Support continues until the child:

  • Reaches age 18, OR
  • Reaches age 19 if still a full-time high school student, not self-supporting, and living with a parent seeking support.
  • Support may continue indefinitely for an adult disabled child unable to live independently (§ 20-124.2).

    7. Modification (Va. Code § 20-108)

    A material change in circumstances permits modification. The Division of Child Support Enforcement (DCSE) conducts administrative reviews; a 15% deviation between the existing order and a new calculation is generally a material change.

    8. Deviation (§ 20-108.1(B))

    The presumptive amount may be deviated from with written findings — factors include the support obligations of either parent, age and special needs of the child, custody arrangements, and standard of living.

    This is legal information, not legal advice.

    When to Talk to a Lawyer
    • You meet the 90-day threshold for shared-custody calculation
    • Income imputation is at issue
    • You have an adult disabled child needing continued support
    Related Statutes & Laws
    • Va. Code § 20-108.1
    • Va. Code § 20-108.2
    • Va. Code § 20-124
    • Va. Code § 20-124.2

    This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.