Is the USDA figure still updated?

No. Expenditures on Children by Families ended with the 2015 edition, published in 2017, and no successor exists. That has one practical consequence people get wrong: the widely quoted 233,610 dollars is in 2015 dollars, not current ones. Restated with the Bureau of Labor Statistics' CPI-U annual averages — 237.017 for 2015 against 321.943 for 2025 — the same middle-income figure is 317,315 dollars in 2025 money, which is 36 percent higher. Quoting the raw figure in a sentence about today understates it by that much. The structure of the report ages more gracefully than its level: the share going to housing, the shape of the age profile and the economies of scale are still the best published estimates of those relationships.

Why does a child cost more in a richer household?

Because both measures are about a standard of living, not about a fixed basket. The USDA table shows a lower-income child at 174,690 dollars in 2015 money and a higher-income child at 372,210 — a ratio of 2.13. That is not a claim that the second child needs more; it is the arithmetic of allocating a bigger housing cost, a bigger food budget and a bigger transport bill. The equivalence scale does the same thing more transparently, because it multiplies your own income: on 4,000 units of currency a child adds 800, and on 8,000 it adds 1,600. If the question you are asking is "what is the minimum a child needs", neither measure answers it, and you should look at a statutory minimum-maintenance figure instead.

How much cheaper is a second or third child?

Substantially, and the USDA measured it against a two-child baseline. A one-child household spends 27 percent more on that child than a two-child household spends per child; a household with three or more spends 24 percent less per child. On the restated middle-income figure of 317,315 dollars, that is 402,990 for an only child and 241,160 per child in a family of three. So three children cost 723,479 in total, against 634,630 for two — the third child adds about 89,000, not another 317,315. Note what is being shared: bedrooms, a car, a washing machine, a parent's time and second-hand clothes. What is not shared is food, school trips and childcare places, which is why the discount is 24 percent rather than something larger.

Are the early years or the teenage years more expensive?

The totals are closer than the intuition, and the composition is what changes. In 2015 dollars the middle-income annual figure is 12,680 for ages 0 to 2 and 13,900 for ages 15 to 17 — 17,223 and 18,881 restated in 2025 money, a rise of under 10 percent across seventeen years. Childcare and education dominate the early years and then fall away; food and transport rise to take their place. The reason the early years feel far worse is not in this table: they coincide with the period when a parent's earnings are most likely to be interrupted or reduced, and the report excludes forgone earnings entirely. Two shocks arriving together is a cash-flow problem even when the eighteen-year total is flat.

How does this relate to a child support order?

It is the input, not the output. The income-shares model used by most American states works exactly this way: it starts from a schedule of what a household at a given combined income spends on children, then apportions that combined obligation between the parents in proportion to their incomes and adjusts for parenting time, childcare and health premiums. So an expenditure table like the USDA's is the ancestor of the schedule, but the order is the schedule plus the apportionment plus the adjustments. Running the cost-of-a-child figure and calling it the support amount skips two of the three steps and will usually give the wrong answer by a wide margin.

What a Child Costs Is a Marginal Cost, Not a Bill

Published 6/15/2026 · 12 min read · Finance calculators

Camille Laurent — Finance writer at Allin

Tax · Personal finance

Checked against 6 sources

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In short

The number everyone quotes comes from one report that no longer has a successor. The United States Department of Agriculture's Expenditures on Children by Families series ended with the 2015 edition, published in 2017, and its headline is that a middle-income married-couple family would spend 233,610 dollars raising a child born in 2015 from birth through age 17, in 2015 dollars. Restated with the Bureau of Labor Statistics' CPI-U annual averages — 237.017 in 2015 against 321.943 in 2025, a factor of 1.35832 — that is 317,315 dollars in 2025 money, or 17,629 a year, or 1,469 a month. The lower-income group is 174,690 in 2015 dollars and the higher-income group 372,210, a ratio of 2.13 between them, and that ratio is the first clue about what the number is. It is not a bill. It is household spending, allocated to a child by category, with each category allocated by whichever method fits it. Housing, the largest line at 28.4 percent of the total, is allocated as the average cost of an additional bedroom — a marginal cost, not a receipt. Food and clothing are allocated per person. Childcare and education, 16.3 percent of the total, is an average over families who pay nothing and families who pay a great deal, so it describes almost nobody exactly. That is why a richer household spends more than twice as much on a child than a poorer one: they are not buying twice as much childhood, they are allocating a bigger housing cost and a bigger food budget. Two corollaries follow. Economies of scale are large and are in the data: an only child costs 27 percent more than a child in a two-child family, and each child in a family of three or more costs 24 percent less. And the biggest cost is missing entirely — the report excludes forgone parental earnings and it excludes college.

The USDA's figure of 233,610 dollars for a middle-income child born in 2015 — 317,315 restated in 2025 money — is not a sum of receipts. It is allocated household spending, and the housing line is measured as the cost of one more bedroom.

Why the American number is an allocation, not a receipt

Read the method and the headline stops being mysterious. Housing is 28.4 percent of the middle-income total and is allocated as the average cost of an additional bedroom — so a family that already had a spare room did not spend that money, and a family that moved to a bigger flat spent more than that. Food and clothing are allocated per person, which is close to a real marginal cost. Childcare and education, 16.3 percent of the total, is an average across every family in the sample, including the many who pay nothing because a relative helps or a parent stays home. Health care is net of insurance. Transport is a per-person share of household vehicle costs. Add these up and you get a household-level number attributed to a child, which is the right way to answer "how much more does a family with a child spend" and the wrong way to answer "what will this cost me".

The income gradient in the same table proves the point. The lower-income group's total is 174,690 dollars in 2015 money and the higher-income group's is 372,210 — 2.13 times as much for the same eighteen years of childhood. Children in richer households are not consuming 2.13 times as much; the households are allocating a share of a larger housing cost, a larger food budget and a larger transport bill. Which means the correct way to use this data on your own family is to find the row that matches your income and your household size, and then to ignore the categories that describe someone else's arrangements — most obviously childcare, where the average is a blend of zero and a great deal.

Economies of scale are real and they are large

The USDA measured them and the ratios are worth memorising. Compared with a two-child married-couple household, which is the baseline of the table, a one-child household spends 27 percent more on that child, and a household with three or more children spends 24 percent less per child. On the restated middle-income figure of 317,315 dollars per child, that is 402,990 for an only child, and 241,160 per child in a family of three — 723,479 for the three of them, against 634,630 for two children at the baseline rate. So the third child adds about 89,000 dollars to a household bill that was already 634,630, not another 317,315. Bedrooms, cars, washing machines and the parent's time are shared; food and school trips are not.

The age profile is flatter than people expect, and its shape is the opposite of the common intuition. In 2015 dollars, the middle-income annual figure runs 12,680 for ages 0 to 2 and 13,900 for ages 15 to 17 — 17,223 and 18,881 in 2025 money, a rise of less than 10 percent over seventeen years. What changes is the composition, not the level: childcare dominates the early years and disappears, while food and transport rise to replace it. That has a planning consequence. The years that feel most expensive are the years with childcare, and they are also the years when a parent's earnings are most likely to be reduced. The two shocks arrive together, which is why the early period strains budgets far more than the totals suggest.

The costs that are not in any table

The USDA report says so itself: it does not include the cost of a parent's forgone earnings, and it stops at age 17, so it excludes higher education entirely. Both omissions are larger than several of the categories it does include. Three years out of the labour market on 30,000 dollars a year is 90,000 of gross pay, which is more than the report's entire eighteen-year housing allocation in 2015 dollars — and that ignores the pension credits those years would have earned and the promotions that did not happen. Add four years of a public four-year degree and, on the projection in the college-cost article, the eighteen-year total roughly doubles.

There is a second omission that runs the other way: public transfers and tax relief. The child tax credit, dependent care benefits, subsidised school meals and health coverage reduce the net cost, sometimes substantially, and the report is a measure of expenditure and not of net burden. So the honest personal calculation has three steps. Start with an allocated expenditure figure scaled to your income group and family size. Subtract the transfers you actually receive. Add the forgone earnings and the post-18 costs the report leaves out. The result will not match any published headline, and that is the point.

Using an old dataset honestly

The 2015 report is the last edition; the series was discontinued and nothing has replaced it. That leaves two defensible ways to use it and one indefensible one. Defensible: restate it into today's money with a general price index and treat it as a structure — which categories dominate, how they change with age, how they scale with family size — rather than as a level. Also defensible: use the 2015 relativities and substitute your own local price levels for housing and childcare, which are the two lines that vary most by place. Indefensible: quoting the raw 2015 dollar figure in a 2026 sentence as though it were current, which understates it by 36 percent on CPI-U alone.

The calculator on this page restates the 2015 table with the CPI-U factor of 1.35832, applies the report's own economies of scale and projects forward at a rate you choose. That makes the arithmetic reproducible, which is the most it can honestly claim. It cannot know whether you pay for childcare, whether you moved to a bigger home, or whether a parent left work — and those three questions, between them, account for most of the variance between real families.

Four different questions that all get answered with "what a child costs"
The question	Who answers it, and how	What the answer is good for
How much more does a household actually spend?	Expenditure surveys, allocated to the child by category. The USDA series did this: housing by the cost of an extra bedroom, food and clothing per person, childcare and education directly. The last edition covers 2015 spending and no newer one exists	Understanding where the money goes and how the mix changes with age. Useless as a personal forecast, because the childcare average mixes families paying nothing with families paying a great deal
How much income keeps the standard of living the same?	The OECD-modified equivalence scale used by Eurostat and the national statistical offices: 1 for the first adult, 0.5 for each further person aged 14 or over, 0.3 for each child under 14	Budgeting and comparing households of different sizes. It is proportional to income by construction, so it says a child costs more in a richer household — which is a feature, not a flaw, because the question is about a standard of living
What is the legal minimum one parent owes?	In Germany, a regulation states it: the Mindestunterhaltsverordnung sets the minimum maintenance of a minor child under § 1612a BGB at 486, 558 and 653 euros a month for the three age bands from 1 January 2026, before crediting child benefit	Enforcement and court orders. Summed over eighteen years those three bands come to 122,184 euros, about 62 percent of what the equivalence scale says a child costs in a household on 4,000 euros net — which is the correct relationship, since a minimum is a floor and not a description
What did the family give up?	Nobody, in any of these tables. Forgone parental earnings are excluded from the USDA report by design and are absent from the equivalence scale, because both measure spending or income and not opportunity cost	Nothing yet — which is why you have to add it by hand. Three years out of the labour market on 30,000 a year is 90,000 of gross pay, plus the pension rights those years would have built and the salary progression that did not happen

Frequently asked questions

Is the USDA figure still updated?: No. Expenditures on Children by Families ended with the 2015 edition, published in 2017, and no successor exists. That has one practical consequence people get wrong: the widely quoted 233,610 dollars is in 2015 dollars, not current ones. Restated with the Bureau of Labor Statistics' CPI-U annual averages — 237.017 for 2015 against 321.943 for 2025 — the same middle-income figure is 317,315 dollars in 2025 money, which is 36 percent higher. Quoting the raw figure in a sentence about today understates it by that much. The structure of the report ages more gracefully than its level: the share going to housing, the shape of the age profile and the economies of scale are still the best published estimates of those relationships.
Why does a child cost more in a richer household?: Because both measures are about a standard of living, not about a fixed basket. The USDA table shows a lower-income child at 174,690 dollars in 2015 money and a higher-income child at 372,210 — a ratio of 2.13. That is not a claim that the second child needs more; it is the arithmetic of allocating a bigger housing cost, a bigger food budget and a bigger transport bill. The equivalence scale does the same thing more transparently, because it multiplies your own income: on 4,000 units of currency a child adds 800, and on 8,000 it adds 1,600. If the question you are asking is "what is the minimum a child needs", neither measure answers it, and you should look at a statutory minimum-maintenance figure instead.
How much cheaper is a second or third child?: Substantially, and the USDA measured it against a two-child baseline. A one-child household spends 27 percent more on that child than a two-child household spends per child; a household with three or more spends 24 percent less per child. On the restated middle-income figure of 317,315 dollars, that is 402,990 for an only child and 241,160 per child in a family of three. So three children cost 723,479 in total, against 634,630 for two — the third child adds about 89,000, not another 317,315. Note what is being shared: bedrooms, a car, a washing machine, a parent's time and second-hand clothes. What is not shared is food, school trips and childcare places, which is why the discount is 24 percent rather than something larger.
Are the early years or the teenage years more expensive?: The totals are closer than the intuition, and the composition is what changes. In 2015 dollars the middle-income annual figure is 12,680 for ages 0 to 2 and 13,900 for ages 15 to 17 — 17,223 and 18,881 restated in 2025 money, a rise of under 10 percent across seventeen years. Childcare and education dominate the early years and then fall away; food and transport rise to take their place. The reason the early years feel far worse is not in this table: they coincide with the period when a parent's earnings are most likely to be interrupted or reduced, and the report excludes forgone earnings entirely. Two shocks arriving together is a cash-flow problem even when the eighteen-year total is flat.
How does this relate to a child support order?: It is the input, not the output. The income-shares model used by most American states works exactly this way: it starts from a schedule of what a household at a given combined income spends on children, then apportions that combined obligation between the parents in proportion to their incomes and adjusts for parenting time, childcare and health premiums. So an expenditure table like the USDA's is the ancestor of the schedule, but the order is the schedule plus the apportionment plus the adjustments. Running the cost-of-a-child figure and calling it the support amount skips two of the three steps and will usually give the wrong answer by a wide margin.

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This article is explanatory. It shows how a calculation works and what changes the answer; it is not financial, tax, legal or investment advice, it knows nothing about your income, your court order, your family or your contributions record, and it cannot tell you what to sign or what to claim. Lending rules, support guidelines, tuition schedules, contribution limits and pension formulas differ by country and by state, and most of them are revised every year — so every rule described below must be checked against the text in force before you rely on it. Every monetary input is a stated assumption, not a forecast or a quotation. Put your own figures into the calculator, and take regulated advice before committing money or agreeing to an order.

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