Worked example: Alimony Child Support in New York

7 min read

Published April 15, 2026 • By DocketMath Team

Example inputs

Run this scenario in DocketMath using the Alimony Child Support calculator.

This worked example shows how DocketMath can calculate combined alimony (spousal support) and child support in New York (US-NY) using jurisdiction-aware rules. It’s a calculation walkthrough—not legal advice—and it assumes you already have the inputs you’d typically gather from a case filing, agreement, or court order.

Note: In this article, we focus on how the math works with DocketMath. Any final order depends on the specific facts of your case and what the court (or parties) actually ordered.

Case setup (hypothetical facts)

We’ll model a common scenario: two incomes, one child, and a request for support. The goal is to show how outputs respond when key inputs change.

InputExample valueWhy it matters
JurisdictionNew York (US-NY)Selects New York-specific support logic and formatting.
Child(ren)1Child support scales with the number of children.
Annual gross income — Parent A$120,000Used to compute the guideline-based child support portion and any support interaction.
Annual gross income — Parent B$80,000Same—paired against Parent A for combined guidance.
Parenting time / schedule140 days with Parent BAffects the allocation assumptions used by the calculator.
Spousal support request typeFixed monthly (modeled)This example treats spousal support as an amount to be handled alongside child support in the output.
Proposed spousal support (monthly)$850Demonstrates “alimony + child support” in one view.

Tool inputs you would enter into DocketMath

In DocketMath’s alimony-child-support calculator flow, you typically provide:

  • Income (gross income for each parent)
  • Children count
  • Parenting time (or schedule/number of overnights/days)
  • Spousal support amount (or a way to model the spousal-support component)
  • Filing or order context fields used to select jurisdiction-aware defaults

Because DocketMath is a tool for computation—not adjudication—keep your inputs consistent:

  • Use the same time basis across fields (for example, annual income, monthly support amounts)
  • Confirm parenting-time figures are entered in the same way the tool expects (commonly days with the other parent)
  • Ensure currency and rounding match your source documents

Jurisdiction-aware defaults and time-rule reference

This article also includes a jurisdiction timing reference included with the provided New York jurisdiction data. Separately from the calculation itself, you can use that reference when you’re thinking about general timing expectations.

For New York, the jurisdiction data provides this general/default period:

Important clarity for this article: the jurisdiction data notes that no claim-type-specific sub-rule was found. That means the 5-year general/default period is used here as a general timing reference, not a claim-specific tailored rule.

Warning: A statute of limitations or timing reference can’t determine whether a support obligation is enforceable in your specific situation. Enforcement and modification timelines can involve different doctrines and procedural rules depending on the posture of the case.

If you want to run your own numbers, use the calculator here: /tools/alimony-child-support.

Example run

Now let’s run the numbers using the hypothetical inputs above in DocketMath.

Run the Alimony Child Support calculator using the example inputs above. Review the breakdown for intermediate steps (segments, adjustments, or rate changes) so you can see how each input moves the output. Save the result for reference and compare it to your actual scenario.

Inputs (recap)

  • Parent A annual gross: $120,000
  • Parent B annual gross: $80,000
  • Children: 1
  • Parenting time: 140 days with Parent B
  • Spousal support (modeled): $850/month

What the calculator produces (example outputs)

DocketMath’s alimony-child-support output is designed to show support in a combined, decision-friendly format. A practical way to interpret the output is to separate it into:

  1. Child support amount (guideline-based portion)
  2. Alimony/spousal support amount (as modeled input)
  3. Total monthly support = child support + spousal support

Below is an example output layout consistent with how you’d typically use the tool:

Output componentExample result
Child support (monthly)$1,450
Spousal support (monthly input/model)$850
Total support (monthly)$2,300

Interpreting the run

Use these outputs to shape next steps such as:

  • Checking whether the proposed spousal amount meaningfully changes the total monthly burden
  • Stress-testing whether parenting-time changes would shift the child-support portion
  • Comparing “before and after” figures for an adjustment negotiation or review

Practical checklist for a clean interpretation:

Timing reminder alongside calculations

Because this article includes the jurisdiction timing reference, you can pair it with your computation workflow:

  • If your workflow involves questions with a timing component, start from the general/default 5-year period referenced in the jurisdiction data: N.Y. Crim. Proc. Law § 30.10(2)(c).
  • Again, this is a general timing reference, and no claim-type-specific sub-rule was identified in the provided jurisdiction data.

Sensitivity check

Support outcomes rarely remain stable when real-world facts change. A sensitivity check helps you see which inputs have the biggest effect on the total monthly amount.

Below are three “what if” changes. For each scenario, the spousal support component is held constant at $850/month so you can isolate the impact on the child-support side.

Scenario A: Parenting time changes

Change: Parent B increases parenting time from 140 days to 170 days.

Expected direction: Child support typically moves down as the non-primary parent’s time increases, because the calculator allocates more time-based costs to the parent with more parenting time.

Parenting timeChild support (monthly)Spousal supportTotal (monthly)
140 days$1,450$850$2,300
170 days$1,300 (illustrative)$850$2,150

Scenario B: Income shift for Parent A

Change: Parent A gross income decreases from $120,000 to $105,000.

Expected direction: Child support generally trends down when the higher-income parent’s income decreases.

Parent A incomeChild support (monthly)Spousal supportTotal (monthly)
$120,000$1,450$850$2,300
$105,000$1,280 (illustrative)$850$2,130

Scenario C: Income shift for Parent B

Change: Parent B gross income increases from $80,000 to $95,000.

Expected direction: Child support typically trends down as the relative income comparison changes (depending on how the calculator treats which parent is the primary payer in the child-support portion).

Parent B incomeChild support (monthly)Spousal supportTotal (monthly)
$80,000$1,450$850$2,300
$95,000$1,360 (illustrative)$850$2,210

Pitfall: Sensitivity checks can create false confidence if you change too many inputs at once. For practical review, change one driver at a time (parenting time, Parent A income, or Parent B income) and record the delta in the child support line.

Practical use of sensitivity results

Turn the sensitivity results into action:

To run the same type of comparisons quickly, use the DocketMath calculator directly here: /tools/alimony-child-support.

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