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Connecticut Child Support Calculator
Estimate Connecticut child support with the new Child Support and Arrearage Guidelines effective August 1, 2026, using the schedule of basic child support obligations based on net weekly income.
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How to Use the Connecticut Child Support Calculator
Enter what you know and press Calculate Estimate. The calculator follows the Connecticut Child Support and Arrearage Guidelines (Regs. Conn. State Agencies 46b-215a-1 to 46b-215a-6) that apply from August 1, 2026.
- Enter each parent's gross monthly income. Connecticut works with net weekly income, so the calculator converts it to weekly and estimates taxes.
- Choose the number of children and the custodial parent.
- Tick the box if the parents have shared physical custody (substantially equal time).
- Add monthly work-related child care and the health insurance premium, and say which parent pays them. A premium is deducted from that parent's income.
The result is shown per week, as Connecticut orders are written, and also per month. Your numbers are sent with the form, not placed in the page address, and this site does not store them. This is a planning estimate. A Connecticut court or family support magistrate decides the actual amount.
New Connecticut Child Support Guidelines (August 1, 2026)
Connecticut adopted new Child Support and Arrearage Guidelines effective August 1, 2026 (eRegulations tracking number PR2025-021, Secretary of the State file number 6462). The main changes:
- A new schedule that runs up to $6,000 of combined net weekly income (it stopped at $4,000 before).
- A new worksheet, CCSG-1A, for children with more than two legal parents.
- Contributions to Connecticut Paid Leave count as a deduction with state income tax.
- Hourly wages count for up to 45 hours a week, union dues no longer have to be mandatory to be deducted, and new factors for imputing income.
- Clearer rules for Social Security disability dependency benefits and for arrears after a child turns 18.
The new guidelines do not automatically change an existing order. A parent generally has to ask for a modification and show a substantial change in circumstances.
How Connecticut Calculates Child Support
Connecticut uses an income shares model based on net weekly income. The worksheet (CCSG-1) steps are:
- Lines 1-14: each parent's gross weekly income minus federal, Social Security, Medicare and state taxes, Paid Leave contributions, health insurance premiums, union dues and other allowed deductions gives net weekly income.
- Lines 15-16: add the net incomes, round to the nearest $10 and find the basic obligation in the schedule.
- Lines 17-18: each parent's share of combined net income, rounded to a whole percentage, times the basic obligation.
- Line 20: the noncustodial parent's share is the presumptive current support order. The custodial parent's share is presumed spent directly on the children.
- Lines 21-34: net disposable income shares are used to split unreimbursed medical expenses and child care.
The Connecticut Schedule of Basic Child Support Obligations
The schedule runs in $10 steps from $150 to $6,000 of combined net weekly income, for one to six children. Each line shows a percentage and a weekly dollar amount. Sample lines:
| Combined net weekly income | One child | Two children | Three children |
|---|
| $500 | $116 (23.12%) | $149 (29.82%) | $160 (31.95%) |
| $1,000 | $231 (23.05%) | $349 (34.95%) | $421 (42.06%) |
| $1,500 | $310 (20.68%) | $465 (30.99%) | $553 (36.87%) |
| $2,000 | $365 (18.26%) | $542 (27.08%) | $638 (31.88%) |
| $3,000 | $486 (16.19%) | $714 (23.78%) | $831 (27.71%) |
| $4,000 | $622 (15.54%) | $906 (22.66%) | $1,047 (26.17%) |
| $5,000 | $687 (13.74%) | $1,011 (20.22%) | $1,180 (23.60%) |
| $6,000 | $757 (12.61%) | $1,096 (18.27%) | $1,258 (20.97%) |
Above $6,000 a week, the $6,000 amount is the minimum presumptive support, and the maximum is the combined income times the $6,000 percentage. The court decides case by case within that range.
Low-Income Obligors (the Darker Shaded Area)
If the noncustodial parent's own net weekly income falls in the darker shaded area of the schedule, that parent is a low-income obligor. The basic obligation is read from the schedule using that parent's income only, and it is not split by income share. The shaded area reaches these net weekly incomes:
| Children | Shaded up to (net weekly) |
|---|
| 1 child | $470 |
| 2 children | $550 |
| 3 children | $610 |
| 4 children | $680 |
| 5 children | $750 |
| 6 children | $830 |
Low-income obligors also have limits on child care contributions and are not ordered to contribute to HUSKY A or B premiums.
Shared Physical Custody and Split Custody
In shared physical custody, where each parent has the children for substantially equal periods, the presumptive order is the support amount of the parent with the higher net weekly income, paid to the other parent. Shared custody is also a deviation criterion, so the court can order a different amount when it is fair to do so. In split custody, where each parent has at least one child, the two amounts are calculated and offset.
Child Care, Health Insurance and Medical Expenses
- Child care contribution: the noncustodial parent pays their percentage share of combined net disposable income times reasonable, work-related child care costs that are not subsidized. Low-income obligors pay the lesser of their share or 50%, or 20% if the custodial parent is not low income.
- Health insurance: premiums a parent pays for themselves and their dependents are deducted when figuring net income, and the order must provide for the child's health care coverage at reasonable cost.
- Unreimbursed medical and dental expenses are divided by the parents' shares of net disposable income.
Connecticut Child Support Examples
In each example the children live mostly with Parent B. Net income is estimated by this calculator, so amounts can differ from a worksheet that uses actual tax returns.
Example 1: One child
A earns $5,000 a month and B earns $3,000. Estimated net weekly incomes are $914 and $576, combined $1,490. The schedule amount is $309, and A's 61% share is $188 a week (about $815 a month).
Example 2: Two children with child care
A earns $6,000 and B earns $4,000, and B pays $800 a month for child care. A pays $301 a week in current support plus a 43% child care contribution of $79, $380 a week.
Example 3: Shared physical custody
A earns $7,000 and B earns $3,000, one child, equal time. A has the higher net income and pays A's share: $231 a week.
Example 4: Low-income obligor
A earns $1,500 a month, about $313 net a week, with one child. That is in the shaded area, so A pays $31 a week.
These are illustrations produced from the regulations, not court rulings.
What Counts as Income in Connecticut
Gross income includes salary and wages (hourly wages for up to 45 hours a week), commissions, bonuses and tips, self-employment income, interest, dividends, pensions, Social Security, workers' compensation, unemployment and disability benefits, alimony received and other income listed in the regulations. Public assistance and SSI are excluded. A court may base support on earning capacity, and the 2026 guidelines list factors such as assets, work history, health and the local job market, with full-time work defined as 32 hours a week.
What This Connecticut Estimate Does Not Include
- Actual tax returns, the Connecticut personal tax credit and recapture, union dues, life and disability insurance and uniform costs.
- Other support orders and the qualified child deduction, and Social Security dependency benefits.
- Cash medical support, the split of unreimbursed medical expenses, split custody, more than two parents, and deviation criteria.
Connecticut Child Support Terms
- Net weekly income
- Gross weekly income minus the deductions on lines 2-12 of the worksheet.
- Basic child support obligation
- The schedule amount for the combined net weekly income and number of children.
- Low-income obligor
- A noncustodial parent whose net income is in the darker shaded area of the schedule.
- Net disposable income
- Net income adjusted for the support order, used to share child care and medical costs.
- CCSG-1 / CCSG-1A
- The child support guidelines worksheets for two parents and for more than two parents.
Frequently Asked Questions About Connecticut Child Support
Is this the official Connecticut child support calculator?
No. ChildSupportCalculator.xyz is an independent tool and is not affiliated with the State of Connecticut, its courts or the Department of Social Services. It applies the guidelines effective August 1, 2026 with estimated net income. A court sets the actual amount.
Are there new child support guidelines in Connecticut in 2026?
Yes. New Child Support and Arrearage Guidelines took effect on August 1, 2026. The schedule now goes up to $6,000 of combined net weekly income, and there is a new worksheet for more than two parents.
How is child support calculated in Connecticut?
Each parent's net weekly income is figured, the incomes are combined and the basic obligation is found in the schedule. The noncustodial parent pays their percentage share of that amount, plus a child care contribution if applicable.
Does Connecticut use gross or net income?
Net weekly income: gross income minus taxes, Paid Leave contributions, health insurance premiums and other allowed deductions.
Why is the result weekly?
Connecticut guidelines and orders work in weekly amounts. This calculator also shows the monthly equivalent (weekly x 52 / 12).
Who pays child support with shared custody in Connecticut?
With shared physical custody, the presumptive order is the support amount of the parent with the higher net weekly income, paid to the other parent. The court may deviate.
What happens above $6,000 a week?
The amount at $6,000 is the minimum presumptive support, and the maximum is the combined income times the $6,000 percentage. The court decides case by case.
What is a low-income obligor in Connecticut?
A noncustodial parent whose own net weekly income falls in the darker shaded area of the schedule, for example up to $470 a week with one child. Their obligation comes from their income alone.
How is child care handled in Connecticut?
The noncustodial parent pays a child care contribution equal to their share of combined net disposable income times qualifying child care costs, with special limits for low-income obligors.
Does the Connecticut calculator need my personal details or a login?
No. This site needs no login and does not store your numbers.
Official Connecticut Child Support Resources
Published: October 17, 2026
Last reviewed: October 17, 2026
Researched and reviewed by Eric John, founder and editor, using official state statutes and guidance. How we build and check our calculators · Corrections
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