United States version
How it works
Allocate an already determined guideline obligation in a simple income-shares scenario. It is not a 50-state child-support calculator and does not supply a court schedule.
This is the United States planning view, with monetary inputs and outputs in USD. A currency label does not establish that a tax rate, construction price, coverage rule or legal limit has been verified locally. The inputs and limitations below describe the actual scope.
Input query strings and outputs
Use an input name in this page’s URL as ?name=value, and join additional inputs with &. Portable shared links may instead use the compact ?ac= state parameter.
Input query strings
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?parentA=Parent A monthly guideline-adjusted incomeMoney · Required · Default: 4,000
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?parentB=Parent B monthly guideline-adjusted incomeMoney · Required · Default: 3,000
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?baseObligation=Combined obligation from the verified state guidelineMoney · Required · Default: 1,000
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?childcare=Eligible monthly childcareMoney · Required · Default: 300
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?health=Eligible child health-insurance costMoney · Required · Default: 100
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?aDirect=Eligible credit for Parent A direct paymentsMoney · Required · Default: 0
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?aAdjustment=Verified reduction/credit from custody adjustmentMoney · Required · Default: 0
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?rulesConfirmed=Applicable jurisdiction rules and entered amounts independently verifiedTrue or false · Optional · Default: false
Outputs
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aShareParent A income sharePercentage
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bShareParent B income sharePercentage
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combinedCombined entered support costsCurrency · Currency: USD
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aContributionParent A modeled contribution after entered creditsCurrency · Primary output · Currency: USD
Formula
A share = A adjusted income / combined adjusted income. A contribution = max(0, combined eligible costs × A share − verified direct credits − verified adjustment).
Calculations retain numeric precision internally. Displayed values are rounded for readability. Quantities that must be purchased as whole units are rounded up only where the formula explicitly requires it.
Read the inputs before calculating
- Parent A monthly guideline-adjusted income: Enter the quantity described by the label.
- Parent B monthly guideline-adjusted income: Enter the quantity described by the label.
- Combined obligation from the verified state guideline: Enter the quantity described by the label.
- Eligible monthly childcare: Enter the quantity described by the label.
- Eligible child health-insurance cost: Enter the quantity described by the label.
- Eligible credit for Parent A direct payments: Enter the quantity described by the label.
- Verified reduction/credit from custody adjustment: Enter the quantity described by the label.
- Applicable jurisdiction rules and entered amounts independently verified: Enter the quantity described by the label. Leave this unconfirmed until you have actually checked the required condition.
Reproducible worked example
The following is a fictional arithmetic example, not a local quote, a verified claimant or a market forecast. Its values are included so the formula can be checked. The form does not automatically confirm any verification checkbox.
Applicable jurisdiction rules and entered amounts independently verified: assumed confirmed solely for this fictional demonstration
| Input | Example value |
|---|---|
| Parent A monthly guideline-adjusted income | 4,000 |
| Parent B monthly guideline-adjusted income | 3,000 |
| Combined obligation from the verified state guideline | 1,000 |
| Eligible monthly childcare | 300 |
| Eligible child health-insurance cost | 100 |
| Eligible credit for Parent A direct payments | 0 |
| Verified reduction/credit from custody adjustment | 0 |
| Applicable jurisdiction rules and entered amounts independently verified | true |
| Output | Calculated result |
|---|---|
| Parent A income share | 57.1429 |
| Parent B income share | 42.8571 |
| Combined entered support costs | USD 1,400 |
| Parent A modeled contribution after entered credits | USD 800 |
Interpreting a changed assumption
Start with one complete scenario and change only one input when diagnosing a difference. Recheck units, the period of every rate, whether an amount is recurring or one-off, and whether a cost is already included elsewhere. A larger calculated benefit is not evidence that an assumption is more likely to occur.
Limitations
- A worksheet is not a legal entitlement, court award, filing deadline, benefit decision or legal advice. Confirm the jurisdiction and facts with a qualified local professional.
- No state negligence rule, damages cap, limitation period, child-support schedule or benefit table is inferred.
- Only use this allocation where the applicable guideline permits it. Shared custody, low-income adjustments, multi-family cases, income caps and deviations require the official worksheet.
Frequently asked questions
What does this Child Support Cost-sharing result represent?
Allocate an already determined guideline obligation in a simple income-shares scenario. It is not a 50-state child-support calculator and does not supply a court schedule. It applies the displayed formula to your inputs; it does not infer omitted facts.
Are the starting amounts verified United States prices or legal rules?
No. Numeric defaults are illustrative unless an input or dated reference explicitly identifies a researched component. Currency is USD; local quotes, eligibility and unsupported rules must be entered and verified separately.
What must I check before relying on the result?
A worksheet is not a legal entitlement, court award, filing deadline, benefit decision or legal advice. Confirm the jurisdiction and facts with a qualified local professional. No state negligence rule, damages cap, limitation period, child-support schedule or benefit table is inferred.
Can I compare or share different assumptions?
Change one assumption at a time and use the browser-local project or share controls. A shared URL contains the encoded input values; do not include information you do not wish to disclose.
Sources and reference scope
- US legal help and official resources — retrieved 2026-09-24. Route to jurisdiction-specific advice; not a source of state-specific caps or negligence rules.
These references support only their stated scope. They are not evidence that every local rule or price needed by the master expansion has been loaded.