Virginia's child support formula does not set a fixed dollar amount — it calculates a percentage of both parents' income

Virginia does not say "child support for one child is $X per month." Instead, the court uses the Virginia Child Support Guidelines, which take both parents' combined monthly income and apply a percentage based on how many children need support. For one child, that percentage is 17% of combined income. The amount each parent pays depends on their share of that combined income and custody arrangement.

This means a parent earning $3,000 per month and another earning $2,000 per month (combined $5,000) would have a guideline amount of $850 per month total for one child. How that $850 splits between them depends on who has custody and each parent's income proportion. A parent with 50% custody and 60% of the income might pay around $300 to $400 monthly; the exact figure requires the full calculation.

The court can order a different amount if it finds the guideline amount unjust or inappropriate, but the guideline is the starting point in nearly all cases.

Key Takeaways

  • Virginia calculates child support as 17% of both parents' combined monthly income for one child, not a fixed dollar amount.
  • Each parent's actual payment depends on their percentage of combined income and custody arrangement — the same guideline amount splits differently for each family.
  • Income includes wages, salary, bonuses, self-employment earnings, rental income, and some benefits; it does not include child support received for other children.
  • The court can order more or less than the guideline amount if it determines the guideline is unjust, but this requires a written finding of reasons.
  • Child support continues until the child turns 18, or 19 if still in high school, unless the child is emancipated or the court orders otherwise.

What counts as income for the calculation

Virginia's guidelines count gross monthly income from most sources. This includes W-2 wages, salary, bonuses, overtime, self-employment net income, rental income, interest and dividend income, social security benefits (except SSI), unemployment benefits, workers' compensation, and military allowances. It also includes income from pensions and retirement accounts if the parent is actually receiving payments.

Income that does not count includes Supplemental Security Income (SSI), Temporary Assistance for Needy Families (TANF), food stamps, housing assistance, and child support the parent receives for other children. If a parent is voluntarily unemployed or underemployed, the court may assign income based on their earning capacity rather than actual income — this happens when a parent quits a job or refuses work without good reason.

Self-employed parents must provide tax returns and business records. The court uses net income (revenue minus legitimate business expenses) rather than gross revenue. If a parent's income varies significantly month to month, the court typically averages income over a recent period, often the prior 12 months.

How custody arrangement affects the payment amount

The percentage of time each parent spends with the child changes how the guideline amount is split. If one parent has primary custody (the child lives with them most of the time), the other parent typically pays child support to that parent. If custody is roughly equal — often called 50/50 or shared custody — the calculation still uses the 17% guideline, but the payment may be smaller or flow in either direction depending on income difference.

For example, if both parents earn $3,000 monthly and have equal custody, the guideline amount is $1,020 (17% of $6,000). But because neither parent has primary custody, the court may order no payment, a reduced payment, or a payment from the higher-earning parent to the lower-earning one. Virginia law says the court must consider the standard of living the child would have had if the parents remained together.

Overnight visitation also matters. If the non-custodial parent has the child overnight 30% or more of the time, the court adjusts the calculation downward because that parent is directly covering expenses during those nights.

How to find the exact amount for a specific situation

The only way to know the exact amount is to run the Virginia Child Support Guideline Worksheet, which requires both parents' gross monthly income, custody arrangement, and any adjustments the court allows (such as health insurance costs, childcare, or prior child support obligations). The Virginia Supreme Court provides a blank worksheet and instructions on its website, and many family law attorneys use software that calculates the amount automatically.

If you are in a court case, the judge or magistrate will complete the worksheet and explain the calculation in the order. If you are negotiating outside court, both parents can fill out the worksheet together or hire an attorney to do it. Some legal aid organizations in Virginia offer free or low-cost help with this calculation.

The worksheet also shows adjustments: if one parent pays for the child's health insurance, that amount is deducted from their income before the percentage is applied. If a parent has other children from other relationships, that obligation reduces the income available for this child. These adjustments can lower or raise the final amount significantly.

When the court orders more or less than the guideline amount

A Virginia court can order child support above or below the guideline amount if it finds the guideline is unjust or inappropriate. The law lists 13 factors the court can consider, including the age and health of the child, the standard of living the child would have had if the parents stayed together, the earning capacity of each parent, the child's special needs or talents, and the tax consequences to each parent.

A parent asking for a different amount must ask the court in writing and explain why the guideline is unjust. The court must write down its reasons if it orders a non-guideline amount. This happens in cases where one parent has very high income (the guideline may seem too harsh), one parent has a disability or serious health issue, or the child has special needs requiring extra expenses.

Deviation from the guideline is not automatic. The court must find a specific reason, and that reason must be documented in the order. Simply disagreeing with the guideline amount is not enough.

How long child support lasts and when it can change

Child support in Virginia continues until the child turns 18, or until the child finishes high school (whichever is later), up to age 19. If the child is emancipated before that age — meaning they marry, join the military, or the court declares them independent — support ends. If the child is still in high school after turning 18, the parent paying support must continue until graduation or age 19, whichever comes first.

Either parent can ask the court to change the amount if circumstances change significantly. A substantial change in income (usually 10% or more), a change in custody, or a change in health insurance costs can trigger a modification. The parent requesting the change must file a motion with the court and show the change is real and ongoing, not temporary.

If the paying parent loses their job, they should ask the court to modify the order rather than simply stop paying. Falling behind on support creates arrears, which accrue interest and can result in wage garnishment, license suspension, or contempt charges. A court order modifying the amount protects both parents.

Frequently Asked Questions

Does Virginia have a minimum child support amount?

No. If both parents have very low income, the guideline amount may be $0, and the court will not order support. However, if either parent has income above the guideline threshold, support is calculated even if the amount is small. The court can also order support in forms other than money — such as health insurance, childcare costs, or education expenses — if cash support is not feasible.

What if the parents were never married?

The calculation is the same. Virginia child support law applies whether the parents were married, cohabited, or had a brief relationship. If paternity has not been established, the mother can file a petition to establish paternity, and then the child support case proceeds using the same guidelines. Paternity can be established by agreement or by court order based on DNA testing.

Can child support be modified if one parent's income drops?

Yes, but only if the income drop is substantial and ongoing. A temporary layoff or seasonal job loss may not be enough. The parent requesting the change must file a modification petition and show the new income level. If the court finds the change is real and likely to last, it will recalculate support. Voluntary job loss without good reason may not result in a modification.

Does child support include money for activities, tutoring, or extracurriculars?

The guideline amount is meant to cover basic living expenses. Costs for sports, music lessons, tutoring, or camps are sometimes negotiated separately between parents or ordered as additional support on top of the guideline amount. The court can order one or both parents to pay for these if the child has special talents or needs, but this is not automatic and must be requested in the case.

What happens if the paying parent does not pay?

Unpaid child support becomes a debt that accrues interest. Virginia can enforce collection through wage garnishment, tax refund intercept, driver's license suspension, professional license suspension, and contempt of court charges. The receiving parent can file a motion to enforce, and the court can hold the paying parent in contempt if they willfully refuse to pay. Arrears do not disappear and can follow a parent for years.