Nanny share vs daycare, the real cost comparison.

A nanny share splits one nanny between two families. It usually lands between full-time daycare and a solo nanny on price. In high-cost cities, it can come in below center daycare on a per-child basis. In lower-cost cities, daycare wins. The interesting math is what is hidden in each column.

The big picture

Three care models, three pricing structures:

• Daycare — a center or family child care home prices per child. Costs are split across many families. National average for licensed full-time infant care: $13,200 to $24,200 per year (Child Care Aware 2024).
• Solo nanny — one nanny in your home, one or more of your children. You are the household employer. Median nanny wage per BLS 2024 is $17 to $24 per hour, higher in coastal metros.
• Nanny share — one nanny rotates between two families' homes (or sits at one rotating home). Costs are split between the two families, usually 50/50 or weighted by number of children.

Typical 2026 numbers

A representative comparison for one infant in a mid-cost US metro, 50 hours per week, 50 weeks per year:

A typical share arrangement pays the nanny a 20 to 35 percent premium over a solo-nanny rate (because they are caring for two children), and the total bill is split between the two families. For example, a solo nanny at $25 per hour might earn $32 per hour in a share, with each family paying $16 per hour. The math depends on local wages, which are higher in New York, San Francisco, and Boston.

Worked example

Tax math on each side

Both models qualify for the Dependent Care FSA and the Child and Dependent Care Credit, but the mechanics differ.

Daycare

Receipts come from the provider. The center supplies their EIN for Form 2441 in January. Tax preparation is trivial.

Nanny share

You are a household employer under IRS Publication 926. Each family individually must: register as an employer with IRS and state, run payroll, withhold federal and state taxes, pay employer FICA (7.65%) and FUTA (~0.6%), file quarterly state employment tax returns, file Schedule H with their 1040, and issue a W-2 in January. Most families use a service like HomePay or Poppins Payroll for $50 to $80 per month.

For the underlying tax treatment, see our tax credit guide.

The hidden differences

Cost is only one input. The structural trade-offs:

• Sick days. If the nanny is sick, both families need backup care simultaneously. Daycare absorbs staff illness silently.
• Vacation overlap. Two families' vacation calendars must align (the nanny's paid time off has to coincide), or one family pays for unused weeks.
• Family fit. Sharing a nanny means trusting another family's hygiene, schedule, parenting style, and pickup punctuality. Most shares end when one family changes job or moves.
• Socialization. Two children in a share has more socialization than a solo nanny but less than a daycare's 10 to 60 children. Many families value the 1:2 ratio for under-1s, and shift to daycare at 18-24 months.
• Curriculum and structure. Daycare provides daily activities and developmental assessments. A nanny share is unstructured unless the nanny brings their own approach.
• Illness exposure. A share has dramatically less illness exposure than daycare. Per CDC reports, group child care is associated with more frequent upper respiratory infections in the first year.

When the share wins

• In high-cost metros where center infant tuition runs $24,000+ per year.
• For families with one infant and a strong preference for in-home care.
• When two families' schedules and parenting styles genuinely align.
• When immune-system concerns favor reduced group exposure (immunocompromised siblings, etc.).

When daycare wins

• In lower-cost metros where center tuition is $10,000 to $15,000 a year.
• For families who value structured curriculum and ratio-regulated group settings.
• For working parents who cannot absorb caregiver sick days or vacation overlap.
• Once a child is past 24 months, when socialization gains and lower per-child cost both favor a group setting.

The third option

A family child care home (sometimes called a home daycare) splits the difference: home-like setting, 1:4 to 1:6 ratios, lower cost than a center, and minimal household-employer paperwork. Per Child Care Aware data, family child care homes typically run 10 to 25 percent below center pricing. Worth comparing alongside a share. Our center vs home daycare guide and the broader nanny vs daycare cost comparison cover the trade-offs.

How to start a share

• Find the second family first (local parent groups, neighborhood lists, baby classes).
• Agree on the basics in writing: hourly rate, schedule, location, vacation policy, sick-day backup.
• Recruit the nanny together. Both families interview, both families reference-check.
• Use a payroll service from day one. Two W-2s, two Schedule Hs.
• Set a 30-day check-in to renegotiate if anything is not working.

Bottom line

A nanny share is usually cheaper than a solo nanny and more expensive than a daycare center, except in the highest-cost US metros where it can match or beat center prices for one infant. The financial comparison is straightforward; the operational comparison — sick days, vacation overlap, household-employer paperwork — is where most families underestimate the friction. For the underlying cost numbers, see our cost pillar, the nanny cost comparison, and the cost calculator.