Indiana Child Support Calculator (Income Shares)
Enter both parents' weekly adjusted incomes and the number of children to estimate Indiana child support.
Estimate only — not legal advice. This is an educational estimate using Indiana's official weekly support schedule and the income shares method. It is not legal advice. It uses the weekly incomes you enter and omits adjustments the court applies — parenting-time credits, health-insurance and childcare costs, and other factors. Consult an Indiana attorney or the state's official calculator for a binding figure.
Indiana uses the income shares model on weekly income. Both parents' weekly adjusted incomes are combined, the state's Guideline Schedule gives the total weekly support for that income and number of children, and each parent is responsible for their percentage share. The parent without primary custody typically pays their share.
⚠️ Double-check important results. This is an educational estimate, not professional advice — and where it uses a rate, bracket or fee, those change over time. Verify anything you'll rely on, especially in legal, financial, tax or medical matters, and read our full disclaimer. Think a result is wrong? Tell us so we can fix it.
How to Use This Calculator
Enter each parent's weekly adjusted income and choose the number of children. The calculator combines the incomes, looks up the basic weekly support obligation in Indiana's official guideline schedule, and splits it by each parent's share of the combined income.
Indiana works in weekly figures, so convert monthly or annual income to a weekly amount first (annual ÷ 52). 'Adjusted' income is gross weekly income after specific deductions the guidelines allow.
How the Calculation Works
The income shares model assumes children should receive the share of parental income they would in an intact home. Indiana adds both parents' weekly adjusted incomes and reads the total weekly support from its published schedule for that combined income and number of children.
Each parent is then responsible for the percentage of that amount equal to their share of the combined income. The parent who does not have primary physical custody generally pays their computed share to the other.
combine weekly incomes → schedule obligation → split by income share
Worked Example
Parent 1 earns $600 a week and Parent 2 earns $400, so combined weekly income is $1,000, with 2 children. Indiana's schedule gives a basic weekly obligation of $270 at that income.
Parent 1's share is 600 ÷ 1,000 = 60%, or about $162 a week; Parent 2's is 40%, about $108. If Parent 1 is the non-custodial parent, they would pay roughly $162 a week before adjustments.
Assumptions, Limitations and Source
This tool uses Indiana's official Guideline Schedules for Weekly Support Payments and the standard income shares split, computing the base weekly obligation only.
It does not apply the parenting-time credit, health-insurance or childcare adjustments, or other factors a court weighs, and it rounds the combined income to the nearest amount in the schedule. For a binding figure, use the Indiana Judicial Branch's official calculator or consult an attorney.
- Uses Indiana's official weekly support schedule
- Requires WEEKLY adjusted incomes (annual ÷ 52)
- Base obligation only — omits parenting-time, insurance and childcare adjustments
- Not legal advice; the court sets the official amount
Rate source. The default value used above (Indiana Guideline Schedules for Weekly Support Payments) comes from Indiana Judicial Branch — Guideline Schedules for Weekly Support Payments. Rates like this change over time, so the field in the calculator is editable — overwrite it if it has changed.
Last verified 2026-07-31
Who Uses an Indiana Child Support Calculator
Indiana parents and their advisors use this to estimate weekly support from the state's official guideline schedule. Run it while working out an agreement, preparing for court, or reviewing an existing order. It gives the base weekly figure; a court will factor in parenting time, insurance, and other costs, so treat it as a starting estimate.
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Open calculator →Frequently Asked Questions
How is child support calculated in Indiana?
Indiana uses the income shares model on weekly income: both parents' weekly adjusted incomes are combined, the state schedule gives the total weekly support, and each parent pays their percentage share of it.
Does Indiana use weekly or monthly income?
Weekly. Indiana's guideline schedule is built on combined weekly adjusted income, so convert monthly figures (× 12 ÷ 52) or annual figures (÷ 52) to weekly first.
What is weekly adjusted income?
Gross weekly income after the specific deductions Indiana's guidelines allow, such as support for prior children. This tool takes the adjusted weekly figure you enter.
Does parenting time change Indiana child support?
Yes. Indiana applies a parenting-time credit based on overnights, which can significantly change the amount. This tool gives the base obligation before that and other adjustments.
Is this the exact court-ordered amount?
No. It estimates the base obligation from the official schedule. Courts adjust for parenting time, insurance, childcare and other factors, so confirm with an attorney or the state's calculator.
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