What this calculator adds up
A baby moves your budget in two directions. Costs go up: the birth under your health plan, a bigger insurance premium, gear, diapers, feeding, child care and pay you miss on leave. Some taxes go down: the Child Tax Credit and, for some families, a Dependent Care FSA, the Child and Dependent Care Credit and tax-free HSA or FSA money. This page shows the first-year cost, the cost after estimated tax benefits and a monthly budget.
It uses no national average, because birth, child care and leave costs vary too much by plan, place and employer. Every box starts with a labeled example value so the page shows a result right away. Replace each example with your own quote, bill or plan document.
How the birth cost is worked out
Enter what your plan allows for prenatal care, delivery, the hospital stay and newborn care, from your plan's cost estimate or an Explanation of Benefits. The calculator applies the usual rules: you pay the remaining deductible first, then your coinsurance share of the rest, and the total stops at the out-of-pocket maximum you have left this plan year. Copays and other bills the plan will not pay are added on top. Enter what you already paid this year and it is taken into account.
A worked example with the example numbers
With $18,000 in allowed charges, a $3,000 deductible, 20% coinsurance and a $9,000 out-of-pocket maximum, you pay the $3,000 deductible plus 20% of the other $15,000, which is $3,000 more. That is $6,000, under the $9,000 maximum. Add $500 of copays and other bills and the medical cost is $6,500. These figures are examples, not a prediction of any real bill.
Gear, supplies, child care and leave
Gear is a one-time amount. Diapers, feeding and other baby costs are monthly amounts times 12. Child care is the monthly cost times the months you will pay for it. For leave, enter each parent's weekly take-home pay, the weeks with no pay, the weeks with partial pay and the share of pay you still get. Federal FMLA leave is job-protected for up to 12 weeks for eligible workers, but it is unpaid. Some states and employers pay part of your wages, so use the weeks and share that your employer or state agency confirms.
The tax benefits the calculator counts
- Child Tax Credit. For 2026, up to $2,200 per child under 17 with a Social Security number valid for work. Up to $1,700 per child is refundable, limited to 15% of earned income over $2,500. It shrinks above $200,000 of income ($400,000 joint).
- Dependent Care FSA. From 2026 the limit is $7,500 per household when your employer's plan allows it. Money set aside this way is not taxed and cannot also count for the care credit.
- Child and Dependent Care Credit. For 2026, 20% to 50% of up to $3,000 of care costs for one child under 13, with the highest rate at lower incomes. It is not refundable, and everyone who files must work or study.
- HSA and health FSA. Doctor and hospital charges for pregnancy and birth, pregnancy test kits, breast pumps and lactation supplies are medical expenses. Diapers and child care for a healthy baby are not. The 2026 limits are $8,750 for a family HSA and $3,400 for a health FSA.
- Trump Accounts. A U.S. citizen child with a Social Security number, born 2025 through 2028, can get a one-time $1,000 pilot deposit from Treasury after a parent elects it on IRS Form 4547. It goes into the child's account, so the calculator shows it but does not subtract it from your costs.
The calculator compares your household's federal, state and payroll tax with and without the baby, so each benefit is a real difference in tax. Credits arrive when you file, or sooner if you change your W-4 withholding.
What it leaves out
It treats the first 12 months as one tax year, counts wages as your only income and leaves out itemized deductions, other credits and state child credits. It counts only the baby's care costs for the care credit and does not model every insurance rule, such as a separate deductible for the newborn. Use it to see which numbers matter most, then check the real ones with your insurer, employer and a tax professional.
Frequently asked questions
Does the Child Tax Credit apply the year the baby is born?
Yes. A child born at any point in the tax year can count for the whole year, and the credit is not cut for a late birth. The child needs a Social Security number valid for work by the return's due date, including extensions, and so must you (or one spouse on a joint return).
Should I use a Dependent Care FSA or the Child and Dependent Care Credit?
Not for the same costs. The credit uses up to $3,000 of costs for one child, and every dollar set aside in an FSA reduces that amount. Which saves more depends on your tax rate and care costs, so the calculator compares them. Your employer's plan decides whether the $7,500 limit is available.
Are diapers and formula covered by an HSA or FSA?
IRS Publication 502 says diapers and diaper service do not count unless a disease requires them, and care for a healthy baby does not count either. Breast pumps, lactation supplies, pregnancy test kits and doctor and hospital charges do count. Ask your plan administrator first.
Official sources
Figures checked on irs.gov and dol.gov on October 14, 2026: Revenue Procedure 2025-32 (Child Tax Credit for 2026), IRS Child Tax Credit page, 2026 Form 2441 instructions (early release draft), Publication 15-B (Dependent Care FSA limit), Publication 502 (medical expenses), Revenue Procedure 2025-19 (HSA limits), IRS Trump Accounts and Department of Labor FMLA.
This page gives general information and arithmetic, not tax, insurance, legal or financial advice. Ask your insurer, your employer's benefits team or a tax professional about your own situation.