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Calculator · Child support · Wyoming

Wyoming child support calculator.

The statute’s arithmetic, line by line: the § 20-2-304 table, the 150% shared-custody formula, split custody and the self-support reserve, with an optional gross-to-net worksheet and a printable court worksheet. Your numbers stay in your browser.

  1. 01The calculator
  2. 02How the formula works
  3. 03From gross to net
  4. →Questions
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Updated September 23, 2026Law current through Laws 2018, ch. 42 · 2026 federal taxBy Aaron Herzberg, Wyoming attorney

Wyoming child support · W.S. § 20-2-304Runs in your browser · nothing you type is sent anywhere

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How the Wyoming formula works

Wyoming uses an income-shares table: two net incomes, one row, one number, divided by who earns what. It is simpler than Colorado’s worksheet. There are no add-on lines; everything else is a deviation.

  1. Step 1 · § 20-2-303(a)(iii)
    Net income

    Income from every source, less income taxes, Social Security, the children’s health insurance, mandatory pension deductions and support paid for other children. Overtime counts only if two years show it will continue.

  2. Step 2 · § 20-2-304(a)
    The table

    Add the two net incomes and find the row for the number of children: a base amount plus a percentage of everything above the row. That is the total obligation of both parents.

  3. Step 3
    Income shares

    Each parent owes the total in proportion to net income. In a primary-custody case the parent without the children pays that share; the other parent’s share is presumed spent at home.

  4. Step 4 · § 20-2-304(c), (d)
    Shared and split custody

    If each parent has more than 25% of the overnights (92 or more) and both contribute substantially to expenses, the total is multiplied by 150%, split by income, weighted by the other parent’s time, and offset. If each parent has at least one child living with them, the per-child amount is offset the same way.

  5. Step 5 · § 20-2-304(f)
    The self-support reserve

    Support never takes the paying parent below the federal poverty line for one person, $1,330 a month in 2026.

  6. Step 6 · § 20-2-307
    Presumed correct, unless

    The result is presumed correct and every order must state it. A judge may depart only on a written finding that it would be unjust or inappropriate, weighing thirteen factors: child care, special needs, travel for visitation, time with each parent, and others.

A calculator settles the arithmetic. The case is usually about the inputs.
Seasonal and self-employed income, overtime, imputed income, and whether the 150% condition is met.
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From gross to net

Wyoming’s table runs on net income, and the statute says exactly what comes off gross: personal income taxes, Social Security and Medicare, the cost of the children’s health coverage, current support paid for other children, other court-ordered support being paid, and mandatory pension contributions (W.S. § 20-2-303(a)(iii)). Nothing else. The calculator’s From gross option builds the number line by line and shows its work on the court worksheet.

Counted as income

Wages, bonuses, commissions and tips; self-employment and business income after reasonable, legitimate business expenses; rents; interest, dividends and gains; pensions and Social Security; unemployment and workers’ compensation; alimony received; in-kind income such as employer housing. Overtime only if it has been consistent for two years. Means-tested benefits such as SSI and SNAP are not income.

Added back

Depreciation on a business or rental is added back to income for support (Houston v. Smith, 1994), though it still lowers the tax. A Section 179 write-off of a real cash purchase may count as a business expense if the court finds it reasonable and necessary (Watson v. Watson, 2002).

Lowers the tax, not the income

Voluntary 401(k), 403(b) and 457 contributions, HSA and FSA contributions, the parent’s own health premiums and child care costs are not deductions. They reduce the income tax the parent actually pays, and the calculator counts that: the child care credit, head-of-household status and the child tax credit all flow through the tax estimate.

A new spouse

A new spouse’s income is not the parent’s income. But a joint return taxes both incomes together and can push the parent into a higher bracket. The statute does not say how to split joint tax, so the calculator offers the two common answers: the joint tax split by share of income, or the tax figured as if filing separately.

Wyoming has no state income tax. Federal tax is estimated under 2026 law; a parent with a filed return or year-to-date pay stubs can enter the actual tax instead, which is what a court will want to see.

Questions

Is this the same as the state's calculator?
It applies the same statute. The Department of Family Services calculator takes two net incomes, the number of children and a custody type. This one adds the parenting-schedule picker, a gross-to-net worksheet with the deductions the statute allows, the self-support reserve, and a line-by-line worksheet you can print. On the same inputs the two should agree to the cent.
Does 50/50 custody mean no child support in Wyoming?
No. With each parent over 25% of the overnights and both paying real expenses, the table amount is multiplied by 150% and each parent's share is weighed against the other parent's time. Equal time and equal incomes produce zero. Equal time and unequal incomes do not.
What happens above $15,000 a month?
The table keeps going: every table ends with a percentage "of anything over $15,000." There is no cap. A parent who says the result exceeds what the children need argues for a deviation under § 20-2-307(b), and the court must explain any departure in writing.
Where do child care and school costs go?
Not into the formula. Wyoming's table has no add-on lines for child care, tuition or activities, the way Colorado's does. They are deviation factors: the court can raise or lower the presumptive figure for them, on findings. The children's health insurance premium is different: it is deducted from the net income of the parent who pays it.
How is child support figured for a self-employed parent in Wyoming?
Income is gross receipts less reasonable, unreimbursed, legitimate business expenses (§ 20-2-303(a)(ii)), not the taxable profit on the return. Depreciation is added back (Houston v. Smith, 1994). A Section 179 write-off of a real cash purchase may count as an expense if the court finds it reasonable and necessary (Watson v. Watson, 2002). The parent claiming the expense has to prove it. Self-employment tax is deducted as a Social Security deduction.
When can Wyoming child support be modified?
Once an order is six months old, either parent can ask for a review, and if applying the guidelines to current circumstances changes the amount by 20% or more a month, the court treats that as a change of circumstances justifying modification (§ 20-2-311(a)). Every three years either parent can ask for a review without showing any change. A modification reaches back only to the date notice of the petition was served, unless the parents agree otherwise (§ 20-2-311(d)).
What is the self-support reserve in 2026?
The federal poverty guideline for one person, $15,960 a year or $1,330 a month for 2026. Support cannot take the paying parent below it: if net income less $1,330 is less than the table amount, support is set at that difference (§ 20-2-304(f)).
How much child support is paid for one child in Wyoming?
It depends on both parents' combined net income. At $5,000 combined the one-child table gives $1,024 a month in total; at $10,000 it gives $1,601; at $15,000, $2,157. The paying parent owes his or her income share of that figure, and shared custody, split custody and the self-support reserve adjust it.
Does a new spouse's income count?
Not as income. Wyoming counts income paid "to an individual," the parent. A new spouse's income only matters for tax: on a joint return it can raise the parent's bracket. The calculator shows the joint tax split by share of income, or the tax figured as if filing separately. The statute does not choose between them; the court does.
Are 401(k) contributions or health insurance deducted?
Mandatory pension contributions are; voluntary 401(k) and similar contributions are not. Premiums for the children's health coverage are deducted; the parent's own premiums are not. Both still lower the income tax actually paid, and the calculator counts that.
Can I file the printed worksheet?
It follows the line order of the court's own Child Support Computation Form and Net Income Calculation Worksheet, so the numbers transfer line for line. That form is for computation; it is exchanged and used to settle or prove support, and each parent must still file a Confidential Financial Affidavit with pay stubs and the latest tax return. Ask whether your judge wants the court's form itself.
How close is this to what the court will order?
For two salaried parents with a settled schedule, usually very close, because the statute is arithmetic. It is only as good as the inputs. Seasonal, self-employed and business income, overtime, imputed income for a parent who is not working, and whether the 150% condition is met are where the real arguments are, and a calculator cannot resolve them.

The full page on Wyoming support, including how orders are paid, changed and enforced: Child support in Wyoming.

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