How to calculate Alimony Child Support in Vermont

Quick takeaways

• Vermont calculates child support using the state guidelines table based on the parents’ combined available income under 15 V.S.A. § 656.
• Spousal maintenance (“alimony”) is governed by 15 V.S.A. § 752. Vermont treats child support and maintenance as separate calculations, which you add together for a fuller payment picture.
• DocketMath’s Alimony Child Support calculator is set up for jurisdiction-aware inputs (US-VT), so your results follow Vermont’s framework rather than a one-size-fits-all formula.
• There isn’t a claim-type-specific override implied in this guide. The general/default approach is: guideline-table child support under § 656 and factor-based maintenance under § 752, not a special “period” rule tied to a particular claim type.

Inputs you need

Before you use DocketMath, gather the information below. Doing this first reduces entry mistakes and makes it easier to run “what-if” scenarios (for example, testing different income levels or custody schedules).

1) Income inputs (core)

Vermont’s child support guidelines are based on combined available income (see § 656). DocketMath will ask for the income numbers in the form it supports for US-VT.

Checklist:

• Mother’s income (enter in the format DocketMath requests)
• Father’s income
• Any additional income streams (overtime, commissions, bonuses, self-employment income)
• Ongoing supports received that affect “available income” (if applicable)
• Ongoing supports paid that affect “available income” (if applicable)

2) Child-related inputs (core)

For Vermont child support, the guidelines table is applied to combined available income under 15 V.S.A. § 656, and then allocation reflects parenting time.

Checklist:

• Number of children
• Parenting time / custody allocation (so DocketMath can apply the guideline table correctly)
• Whether the arrangement is closer to mostly with one parent or roughly shared (use the best-supported schedule you have)

3) Maintenance (alimony) inputs (additional)

For spousal maintenance, Vermont uses the statutory factors in 15 V.S.A. § 752. The maintenance result in DocketMath depends on how those factor inputs map into its US-VT maintenance model.

Checklist:

• Length of marriage (years and months, if available)
• Each spouse’s earning capacity (use current income as a starting point; adjust within reason if DocketMath prompts you to reflect limitations)
• Need and ability to pay inputs (captured via the numbers you enter)
• Any relevant circumstances you can document for maintenance (for example, health-related limits affecting earning capacity, if applicable in the calculator)

4) Verification materials (optional but useful)

These aren’t required to use the tool, but they help you enter more accurate inputs:

• Pay stubs and year-to-date income
• Tax return excerpts (especially if self-employed or income is variable)
• Documentation or notes supporting the parenting time schedule

How the calculation works

DocketMath’s US-VT calculator separates the calculation into two parts:

1. Child support under 15 V.S.A. § 656 (guideline-table method), and
2. Spousal maintenance under 15 V.S.A. § 752 (factor-based framework).

You then review both outputs together.

A) Child support calculation under 15 V.S.A. § 656 (guideline-table method)

Vermont statute provides that the total child support obligation is determined using the support guidelines table and the parents’ combined available income.

The statutory mechanics are in 15 V.S.A. § 656:

“The total child support obligation shall be determined by use of the support guidelines table prescribed by the secretary of human services under section 654 of this title, applied to the parents' combined available income.”

Source: https://legislature.vermont.gov/statutes/section/15/011/00656

What this means operationally in DocketMath:

1. DocketMath uses your entries for each parent’s available income.
2. It combines those incomes to select the appropriate guideline table level (because § 656 ties the guideline table to combined available income).
3. It then uses your parenting time allocation inputs to arrive at each parent’s share/allocation, consistent with Vermont’s approach.

How changes affect results:

• If you increase combined income, the guideline table level typically increases—so the child support total can move up.
• If parenting time shifts, the allocation can change—even if combined income stays the same.

B) Spousal maintenance (alimony) under 15 V.S.A. § 752 (factors-based framework)

For maintenance, Vermont’s approach is different: it’s not the guideline-table method in § 656. Instead, maintenance is governed by the factors in 15 V.S.A. § 752.

In DocketMath terms:

• The maintenance output is driven by your entered factor-related inputs such as:

  • length of marriage,
  • earning capacity / income indicators,
  • need and ability to pay,
  • and other maintenance-relevant circumstances you provide through the US-VT maintenance inputs.

Because this is factor-based, two scenarios with the same child support numbers can still produce different maintenance outcomes if the maintenance inputs differ (for example, a different length of marriage or different earning-capacity assumptions).

C) Combining the outputs: what you’re looking at

A practical way to interpret your DocketMath results:

• Child support → derived from the guideline table framework under § 656 (income + children + parenting time allocation).
• Maintenance → derived from the § 752 factor framework using the maintenance inputs.

Then:

• Total monthly support picture = child support amount + spousal maintenance amount.

D) Default approach vs special rule periods (what’s included in this guide)

You asked specifically about jurisdiction-aware rules and periods. In the materials provided for this guide, no claim-type-specific sub-rule was identified.

So the approach described here reflects the general/default framework:

• Child support follows the guideline table method under 15 V.S.A. § 656.
• Spousal maintenance follows the § 752 framework using statutory factors.

If your case has a unique procedural posture or special custody facts, real-world outcomes may differ—but that would be due to the underlying facts and documentation, not because this guide applies a hidden claim-type-specific override.

Common pitfalls

These are frequent causes of incorrect or confusing results when using DocketMath for Vermont.

Pitfall 1: Misstating income used for “combined available income”

Because § 656 ties child support to combined available income, small income-entry errors can move you to a different guideline level.

Checklist:

• Handle variable income (overtime/commissions/bonuses) consistently (for example, using a realistic average approach)
• For self-employment income, use a repeatable method rather than switching assumptions between runs
• Don’t ignore recurring benefits that function like income (if the calculator expects them)

Pitfall 2: Forgetting child support and maintenance are separate

People often look for one single “alimony child support” formula. Vermont instead treats them as separate concepts:

• Child support: 15 V.S.A. § 656 (guidelines table)
• Maintenance: 15 V.S.A. § 752 (maintenance factors)

If you enter only maintenance-related figures, the child support output will be incomplete. If you enter only child-support-related figures, the maintenance output will be missing.

Pitfall 3: Inconsistent parenting time assumptions

Guideline allocation can depend on the parenting time schedule inputs.

Quick sanity check:

• If the schedule is “mostly with Parent A,” set it that way rather than selecting “about equal” unless that’s truly supported by documentation.

Pitfall 4: Treating “what-if” numbers as guaranteed court outcomes

DocketMath is useful for scenario modeling, but actual orders depend on evidence and how a court applies Vermont law to your facts.

If you’re running multiple scenarios:

• keep a short log of what changed between runs (e.g., “increased overtime by X” or “switched custody schedule to mostly Parent A”) so you can explain differences clearly.

Sources and references

• 15 V.S.A. § 656 (Child support guidelines) — “total child support obligation” determined by the support guidelines table applied to parents’ combined available income
  https://legislature.vermont.gov/statutes/section/15/011/00656

Next steps

1. Open DocketMath’s Vermont calculator here: /tools/alimony-child-support
2. Enter income and parenting time inputs first to generate the child support portion based on the § 656 guideline-table approach.
3. Then switch to the maintenance inputs to generate the spousal maintenance portion based on the § 752 factor framework.
4. Run at least 2 scenarios:

   • Scenario A: best-estimate current incomes and the most realistic parenting-time schedule
   • Scenario B: adjust the most uncertain income item (for example, bonuses/overtime) using a realistic range