How to set up a nanny share between two families

Two families hire one caregiver. They need the same weekly record of shared care, solo care, and overtime so each household knows who owes what before payday, without a spreadsheet fight.

What a nanny share is

A nanny share is two families jointly employing one nanny and splitting the cost of that care. In practice that usually means coordinated schedules, one primary care location (often the host family’s home), and two employers paying one person.

Both families must agree on which hours count as shared care (both children present) versus solo care (one family only), how travel or waiting time counts, and how dollars split when the week closes. The cost-split guide walks through the math; this page is the setup map.

A typical week might look like this: Monday through Thursday both children are at the host home (shared). Friday the guest child is with grandparents, and the nanny still works for the host (solo for the host). If you do not tag Friday as solo, the guest family pays for a day they did not use.

Treat hours as paid work

Regular care in a private home can be covered employment, not “just friends splitting a sitter.” Count wages, hours, and the weekly record as real from day one.

Hours worked generally includes time the nanny must be on duty or at the home, including some waiting time when they cannot use it freely. Families who disagree later about early arrival or drive time will disagree about money. Pick those logging rules before week one and stick to them in NannySplit.

Write the rule in one sentence you can both live with. Examples: “Drive between homes after a shared morning is shared until the nanny is off duty.” Or: “The nanny arriving at 7:45 for an 8:00 start is work time if they cannot leave.” Put that sentence next to your rates so it is not rediscovered in a Sunday text thread.

Settlement from hours vs payroll and taxes

NannySplit is settlement: who owes what from the hours both families agree on. It does not run payroll, withhold, or file taxes. Each household still pays wages and handles tax filings through its own payroll process.

After families log or approve hours, both households see the same statement: shared lines, solo lines, and the overtime allocation you agreed on. That total is each side’s portion for the period. Then each family pays through payroll as usual.

What to agree before week one

Write down (even informally) the decisions that otherwise live in two spreadsheets:

• Shared vs solo days: which calendar days are two-family care vs one-family-only.
• Split method: how you divide the cost of shared hours (your families choose; NannySplit applies what you configure).
• Rates: base hourly rates per household when they differ, and how overtime displays before approval.
• Approvals: who signs off when a pay period closes.

When those inputs live in one place, closing a period is a conversation about the statement.

A simple weekly rhythm

Many shares settle on a repeating cadence even when payroll dates differ:

1. During the week, the nanny (or a designated parent) logs shared and solo time daily.
2. Before payroll cutoff, both families review the open period for missing days or wrong tags.
3. Each household confirms the statement matches what they intend to pay.
4. Each family runs its own wage payment using the approved totals as the source of truth for its portion.

That rhythm breaks when one family keeps a private tab. NannySplit exists so step three happens on shared rows, not parallel math.

If you skip the mid-week glance, Friday is when the missing Tuesday tag shows up. Ten minutes on Wednesday is cheaper than reconstructing a week from photos of a paper calendar.

Getting both families on the same page in NannySplit

Invite the second family when your arrangement is ready. Both see the same period and the same line items. Parents approve when the statement matches what they will pay through their own payroll tools; nannies see the same timestamps so they are not the messenger for every adjustment.

If you are still comparing numbers on paper, use the free planning calculator for rough weekly or monthly estimates. It is not a pay statement and not a tax estimate. It helps you sanity-check split assumptions before you start logging real weeks.

When to read the next guides

Start with how to split nanny share costs when you are ready to translate hours into dollars. Read overtime in a share before anyone crosses a long week. If one family hosts most days, host vs guest family explains roles and example agreement language.

More of these topics live on the guides hub. When the setup matches how you actually work, start a share from the button below so both households settle from the same hours.

Questions families ask early

Can you change the split later? Yes, but change it in writing and update NannySplit before the next period. Retroactive edits without notice burn trust with the other family and with your nanny.

When one family travels, solo tags and make-up days should be explicit. A guest family gone for a week may have zero shared hours even if the nanny still works for the host. Log it that way. If you promised make-up days later in the month, write the dates down so they do not vanish into “we’ll even it out.”