Nanny Share Calculator
What Is a Nanny Share?
A nanny share is an arrangement where two or more families hire a single nanny to care for their children together. This setup can significantly reduce child care costs while still providing the personalized, in-home care that makes nannies so appealing. Families split the nanny's salary proportionally based on the number of children each family has in the arrangement.
Benefits of Sharing a Nanny
Nanny shares offer several advantages over traditional child care options. First and foremost, it reduces the cost dramatically compared to hiring a nanny exclusively for your own children. While a solo nanny typically costs $40,000-$70,000 per year including taxes, a nanny share can cut your share by 30-50%. Children also benefit from built-in socialization with their nanny share peers, similar to what they would get in a daycare setting but with more individualized attention. Plus, you retain the flexibility of in-home care — no drop-off and pick-up logistics at a daycare center.
How Nanny Share Costs Are Calculated
The most common approach is proportional cost sharing. Each family pays based on the number of children they have in the share. For example, if family A has 1 child and family B has 2 children (3 total), family A pays for 1/3 of the total cost while family B pays for 2/3. Our calculator adds a 10% coordination premium to your share to account for the extra work involved in managing a multi-family arrangement — scheduling coordination, communication overhead, and aligning policies on sick days, holidays, and discipline.
Legal and Tax Considerations
Even in a nanny share, you are considered a household employer and must comply with nanny tax laws. This includes paying Social Security (6.2%), Medicare (1.45%), and federal unemployment (FUTA) taxes, as well as state unemployment insurance. Both families can claim the Child and Dependent Care Credit (CDCC) on their taxes, up to $3,000 per child (or $6,000 for two or more). It's essential to have a written nanny share agreement that covers hours, pay, holidays, sick days, vacation time, and how the arrangement will be terminated. Many families find it helpful to use a payroll service like NannyKeeper or Poppin Pay to handle tax compliance.
Is a Nanny Share Right for Your Family?
A nanny share works best when families have compatible schedules, parenting philosophies, and geographical proximity. It's ideal for families who want the personalized care of a nanny but need to reduce costs. Consider factors like the nanny's comfort level with multiple families, backup care arrangements when one family's children are sick, and how conflicts will be resolved. Many families start with a trial period before committing to a long-term arrangement, and the best nanny shares are built on clear communication and a detailed written agreement.