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State Guide · Connecticut
Child Support in Connecticut: How It's Calculated, Modified & Enforced
A plain-English guide to Connecticut child support — the guideline model, how the number is computed, the modification and enforcement process, and where to find the official worksheet.
Direct answer
Broad gross weekly income minus a defined list of deductions (taxes, FICA, health insurance, existing support, union dues). The list is exhaustive.
Connecticut uses the Income Shares Model on both parents' combined ADJUSTED NET weekly income, looking up the basic obligation in the Schedule of Basic Child Support Obligations (Regs. § 46b-215a-2c) and allocating it by each parent's income share. Health insurance, unreimbursed medical, and work-related childcare are added on top and split proportionally. The guideline schedule caps at $4,000/week combined net (rising to $6,000/week on Aug. 1, 2026); above that, support is set case-by-case.
Open the Connecticut child support calculator to see your own number under the current guideline: Connecticut calculator.
How a support order is established in Connecticut
Calculate each parent\'s gross weekly income from all sources.
Subtract allowed deductions (taxes, FICA, health insurance, court-ordered support, union dues) to get adjusted net weekly income.
Add both adjusted net incomes to get combined net weekly income.
Look up the basic obligation in the Schedule of Basic Child Support Obligations by combined income and number of children.
Add health insurance, unreimbursed medical, and childcare costs, then split the total by each parent\'s percentage share of combined income.
The noncustodial parent pays their share (the custodial parent\'s share is presumed spent directly on the child).
Worked examples
Illustrative example - combined $1,000/week net, 1 child, 60/40 split — Parent A adjusted net $600/wk, Parent B $400/wk; combined $1,000/wk; one child. Schedule basic obligation = $229/week. Parent A earns 60% of combined income, so pays 60% x $229 = $137.40/week (about $595/month), plus 60% of add-on costs. The schedule gives the total basic obligation; the paying parent covers only their proportional share.
Modifying or enforcing an order
Orders in Connecticut can be modified when there is a substantial change in income, custody, or circumstances. Use the modification eligibility check and the cross-state comparison tool to see how a move would change the outcome. Enforcement runs through the state agency and can include income withholding and contempt proceedings.
Official sources
Connecticut DSS - Child Support — https://portal.ct.gov/dss/child-support
Connecticut Judicial Branch - Child Support — https://www.jud.ct.gov/
What income counts in Connecticut?
Broad gross weekly income minus a defined list of deductions (taxes, FICA, health insurance, existing support, union dues). The list is exhaustive.
Does shared custody automatically lower support?
No fixed overnight formula; courts find \'shared physical custody\' case-by-case when time is substantially equal, and a deviation is not automatic.
Connecticut child support calculator
Estimate for Connecticut
Connecticut uses the Income Shares model.
⚠ Model estimate — not yet verified. Partial official data. The official Connecticut schedule covers up to 1 child; figures for more children use the NCSEA reference model until the full schedule is loaded. Verify with the official Connecticut child support calculator.
Enter the paying parent’s net (after-tax/deductions) monthly income.
Connecticut Child Support Worksheet — Planning Estimate
Generated September 22, 2026 · Model: Income Shares · Income basis: net · Statute: Conn. Gen. Stat. § 46b-215
This is an informal planning estimate, not a court worksheet and not legal advice. Confirm the current guideline with the state child-support agency or a licensed family-law attorney.
Estimated monthly support$675.56per month
Annual estimate$8,106.72
Effective rate13.5%
MethodIncome Shares: combined income → schedule → split by income share (+ add-ons, parenting-time credit)
View calculation breakdown
Combined parental income
$9,000
Total basic obligation (schedule)
$1,216
Obligor income share
55.6%
Obligor basic obligation
$676
Estimated monthly support
$676
How the basic obligation splits between parents
56%
44%
Paying parent: $676 Other parent: $540
Each parent pays their proportional share of the combined basic obligation.
Estimated monthly support by number of children
At the incomes you entered, for 2 children.
This article is general education, not legal or tax advice. For your exact number, open your state calculator.
Not legal or financial advice. This estimate follows the state’s statutory guideline formula but cannot capture every factor a court considers (health insurance, childcare, prior orders, deviations, imputed income).
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