Cost Calculator AI
Family & ChildcareCo-Care Savings

Nanny Share Cost Calculator

Calculate cost splits and savings between two families sharing one dedicated nanny, including premium hourly pay rates and dual employer taxes.

Nanny Share Rate & Dual Family Split

Your Monthly Cost
—
share + taxes/fees
Annual Savings vs Solo
—
money saved per year
Your Effective Hourly
—
per hour wage paid
Your Annual Outlay
—
annual budget

Nanny Share Split Calculation

Family Share Cost = (Shared Hourly Rate × 0.50 to 0.70 × Weekly Hours) + Family Share of Employer Taxes & Payroll Fees
  • Standard Nanny Share Wage: A nanny sharing care of two children typically receives 20% to 35% higher hourly pay than caring for a single child (e.g. $28-$32/hr instead of $24/hr).
  • Per-Family Savings: Each participating family pays roughly 60% to 70% of a solo nanny rate, saving 30% to 40% while getting personalized in-home care.
  • Separate Employer Entity: Each family is an independent household employer under IRS rules and must maintain separate payroll filings.

Step-by-Step Worked Example

Scenario: Two families share a nanny for 40 hours/week. Solo rate would be $26/hr; shared rate is $32/hr ($16/hr per family)

Calculation Steps:

  1. Weekly Gross Wages per Family = 40 hrs × $16 = $640/wk
  2. Weekly Overhead per Family = $640 × 10% = $64/wk
  3. Total Weekly Cost per Family = $704/wk ($36,608/yr)
  4. Solo Nanny Alternative = 40 × $26 × 1.10 = $1,144/wk ($59,488/yr)
  5. Annual Savings per Family = $59,488 - $36,608 = $22,880/year
Result: Each family saves approximately $22,880 annually compared to hiring a solo nanny, paying $3,050.67/month.

How to Use This Calculator

  1. 1Enter the target shared hourly rate for the nanny (typically $28-$36/hr).
  2. 2Specify the cost split between families (default 50/50).
  3. 3Add weekly hours and employer payroll tax allowances.

Assumptions & Limitations

  • Each family files their own Schedule H and issues a separate W-2 to the nanny.

Frequently Asked Questions

Does the host family get a discount in a nanny share?

Frequently yes. It is customary for the family hosting the nanny share in their home to pay 5% to 10% less (e.g., 45% vs 55% split) to compensate for household wear and tear, utilities, and daily hosting preparations.

Related Cost Calculators

Family & ChildcareInteractive

Daycare vs. Nanny Cost Calculator

Compare commercial infant daycare tuition against hiring an in-home nanny with payroll taxes.

Open CalculatorPopular
Family & ChildcareInteractive

Nanny Cost Calculator

Calculate total household employer costs for hiring a full-time or part-time nanny, including hourly pay, overtime, taxes, insurance, and payroll fees.

Open CalculatorPopular
Family & ChildcareInteractive

Nanny Tax Calculator

Calculate Schedule H household employer tax obligations, including Social Security, Medicare, FUTA, and state unemployment withholdings.

Open Calculator