Baby first year cost calculator: how much should you save before the birth?
Do not save the first-year cost. Save the lowest point your bank balance reaches. Add the one-time purchases, then go month by month through the first year: household income, which is lower during parental leave, minus your regular spending, the monthly baby costs and childcare once it starts. The deepest dip in that running total is what you need in the bank on the due date. Example: a first year that costs $10,800 for the baby, with three months of leave at reduced pay, needs $4,800 saved before the birth.
Calculate your baby budget
Use take-home pay, after taxes, for both income fields. Leave months are counted from the birth. Regular spending is what the household spends today without the baby.
Worked example
A couple takes home $6,000 a month and spends $5,000. One parent takes three months of leave, which drops household take-home pay to $4,200. They plan $1,800 of one-time purchases, $200 a month for diapers, feeding and clothes, and daycare at $1,100 a month from month 7.
| Month | Income | Spending incl. baby | Month result | Running total |
|---|---|---|---|---|
| Before the birth | 1,800 | −1,800 | −1,800 | |
| 1 to 3 (leave) | 4,200 | 5,200 | −1,000 | −4,800 after month 3 |
| 4 to 6 | 6,000 | 5,200 | +800 | −2,400 after month 6 |
| 7 to 12 (daycare) | 6,000 | 6,300 | −300 | −4,200 after month 12 |
| Result | Amount |
|---|---|
| First-year cost of the baby: 1,800 + 12 × 200 + 6 × 1,100 | 10,800 |
| Income lost during leave: 3 × (6,000 − 4,200) | 5,400 |
| Lowest running total (after month 3) | −4,800 |
| Save before the birth | 4,800 |
| Per month with 5 months to go | 960 |
What the example shows: two things. First, the money is needed early: the balance is lowest right after the leave, not at the end of the year. Second, from month 7 the household spends $300 more than it earns every month. Savings cover that for a while, but not for good: by month 12 the running total is down to −$4,200 again. Before daycare starts, the regular budget needs $300 less spending or more income.
What goes into each field
- One-time purchases: crib and mattress, car seat, stroller, changing table, a first set of clothes, bottles or a breast pump, baby monitor. Price what you will really pay, secondhand prices included; only free hand-me-downs count as zero.
- Monthly baby costs: diapers and wipes, formula or feeding supplies, clothes in the next size, health costs your insurance does not cover.
- Childcare: daycare, a nanny or a family member you pay. The month it starts usually follows the end of the leave.
- Income during leave: what lands in the account each month while one or both of you are home, from paid leave, short-term disability or state programs. If one parent gets nothing during leave, enter only the other parent's pay.
Common mistakes
- Saving the first-year cost instead of the gap. The baby costs $10,800 in the example, but the household only needs $4,800 in the bank, because income keeps coming in. Saving too much is rarely the problem; saving for the wrong number is.
- Forgetting the income drop. Paid leave often pays less than full salary, or nothing at all. In the example, the lost income is half of what the baby costs.
- Treating childcare as a one-year problem. If the monthly result is negative once childcare starts, savings only delay the shortfall. Fix the monthly budget before the leave ends.
Follow-up questions
Where should the baby money go? In a separate savings account, so it is still there when the leave starts. Keep it apart from your emergency fund, which is for job loss and repairs; our emergency fund guide works out how big that one should be.
What if the result says save $0? Then your income covers the first year on its own. Check the month results anyway: a negative month after childcare starts still needs a fix.
Disclosure: Still Penny makes the Baby Budget Planner Spreadsheet (5.90 EUR, one-time purchase on Etsy) for Excel and Google Sheets. It has a checklist for one-time purchases, monthly baby costs, parental leave for two parents and the same month-by-month running total, with a chart. It is optional: the calculator above is free.
General information, not financial advice.