Estimate the yearly cost of raising a child by age.
The cost of raising a child is not flat across childhood. Infants carry a small premium for equipment and childcare intensity, the primary-school years are the cheapest stretch, and the teenage years add roughly 15% through food volume, clothing, technology and transport. The age multiplier applies that curve to your own figures rather than a national average. The remaining-cost projection holds today's rate constant to age eighteen, so treat it as a real-terms floor rather than a forecast — it excludes inflation entirely.
Annual cost of a child by age
Annual = (housing share + food per week x 52 + education + other x 12) x age band factor
Food volume rises to adult levels, clothing and footwear turn over faster and cost more per item, and technology, transport and social spending all appear. Together those push the annual figure up by roughly 15%.
A common approach is to divide total housing cost by the number of occupants, or to use the marginal cost of the extra bedroom the child occupies. The second is lower and arguably more honest for a decision about an additional child.
No. It holds today's cost flat, so the real figure to age eighteen will be higher in cash terms. Treat the projection as a present-value floor and revisit it annually rather than trusting it as a forecast.