Child Support Add-Ons: Childcare, Health Insurance, and Dental
Childcare, the child’s health insurance premium, dental, and uninsured medical costs are usually ordered on top of basic child support, not inside it. The calculators on this site estimate the basic obligation only, so a real order can be several hundred dollars a month higher.
Updated November 12, 2026 Sources and methodology
What counts as an add-on
Basic support covers food, clothing, shelter, and ordinary care. Everything that depends on actual receipts is handled separately: childcare, the child’s share of a health insurance premium, uninsured medical and dental costs, and sometimes travel or extracurricular activities.
States do not agree on the name or the mechanics. The same item can appear as an add-on, additional child support, mandatory add-ons, medical support, or a separate schedule or worksheet. Some are mandatory when the expense is incurred; others are discretionary. A few states build certain costs into the basic schedule instead of adding them on top. That is why every state page on this site lists what the estimate leaves out.
Childcare
Work-related childcare is the most common add-on. It usually requires the cost to be necessary for a parent to work, look for work, or attend job training. The amount is the actual cost net of any subsidy, for the hours the parent needs.
Because the need changes with the school calendar, orders often separate a school-year figure from a summer figure. Summer camp can count when it substitutes for childcare, but the rule varies. Some states require the cost to be reasonable and may cap it.
Documentation decides most disputes: provider invoices, a registration letter, or tax records. An estimate without proof is the most common reason an add-on is denied.
Health insurance
The add-on is the child’s portion of the premium, not the parent’s own coverage. When the child is on a family plan, the usual approach is the difference between employee-only coverage and employee-plus-children coverage, not the whole family premium.
The parent who carries the plan is usually reimbursed for the child’s share, or gets a credit against the support transfer. Some orders split the premium in proportion to income; others assign it to one parent and adjust the transfer elsewhere.
Public coverage such as Medicaid or CHIP usually has no premium to add, but the court still orders medical support, and a parent who can provide private coverage may be required to do so.
Dental, vision, and uninsured medical
Dental and vision premiums usually follow the same rule as health insurance. Orthodontia is the most frequent separate item because it is expensive, predictable, and often only partly covered by a dental plan.
Uninsured costs (co-pays, deductibles, prescriptions, therapy, orthodontia) are often shared in proportion to income. Many orders also set a reimbursement process: the parent who pays submits a receipt within a set number of days, and costs below a threshold are not reimbursed at all.
Without a written process, these costs are the most disputed part of an order. The basic guideline does not solve them, and neither does a calculator that shows only the basic obligation.
How add-ons are split: a worked example
Assume a basic obligation of $800 a month, work-related childcare of $600, and the child’s health insurance premium of $220. The parents’ incomes give Parent A a 60% share.
- Basic support, Parent A: $800 × 60% = $480.
- Add-ons, Parent A: ($600 + $220) × 60% = $492.
- Total from Parent A to Parent B: $972 a month.
If Parent A also carries the plan, the order may credit the premium inside the transfer instead of adding it. That changes the monthly payment, not the total cost of raising the child. The example is arithmetic: every state allocates these items differently.
What to check in an order
- Who carries health, dental, and vision coverage, and how the premium is calculated.
- The percentage each parent pays for uninsured costs, the receipt deadline, and any annual threshold.
- Whether childcare must be work-related, and how the school year and summer are handled.
- Whether travel and extracurricular costs are mandatory or discretionary.
- Whether add-ons can be modified separately from basic support.
Where the official rule lives
Each calculator below applies the statute, schedule, or worksheet cited on its page. The add-on rules are usually in the same chapter, or in a separate worksheet or form. Parenting time is a separate input that changes the basic obligation; the guide to 50/50 custody and child support compares how the twenty states handle it.
Frequently asked questions
Does child support include daycare or childcare?
Usually as an add-on, not inside the basic obligation. Most states require the cost to be work-related, charged at the actual amount paid net of any subsidy, and documented with invoices or a provider letter. Because the need changes with the school calendar, orders often set a different figure for the school year and for summer.
Who pays the child’s health insurance premium?
The premium is usually an add-on split between the parents, and the parent who carries the plan is reimbursed for the child’s share or gets a credit against the transfer. When the child is on a family plan, the usual measure is the difference between employee-only and employee-plus-children coverage, not the whole family premium. Public coverage such as Medicaid or CHIP usually has no premium to add.
Are dental and vision costs included?
They are usually treated like medical costs: premiums follow the health-insurance rule, and uninsured work such as orthodontia is often shared in proportion to income. The basic guideline rarely includes them, so check the order for the percentage, the receipt deadline, and any annual threshold.
Can add-ons be added or changed after the order?
Usually yes, by a motion to modify when the expense or the income changes: for example when childcare starts, when a child ages out of a plan, or when an insurance premium changes. The standard and the process depend on the state, and some orders allow add-ons to be adjusted on their own.
- OCSE, Essentials for Attorneys: medical support obligations
- California Family Code § 4062: mandatory additional support
- Florida Statutes § 61.30: child support guidelines
- The state calculators linked above, each with its own source list.
Figures are estimates for the basic obligation and are not legal advice. The court’s order controls. See the methodology and update policy.
Written and maintained by Jesús Muentes.