When both parents practice medicine, the childcare decision is not really about price. It is about coverage. A center that closes at 6:00 p.m. does not help the parent rounding until 7:00, and neither parent can leave a coding patient to make pickup. So the honest comparison between a daycare, a nanny, and a nanny-share is a comparison of hours and reliability first, and dollars second, with a set of employer obligations that most physicians discover only after they have already hired someone. This article lays out all three, using clearly labeled representative costs, so you can price your own situation rather than trust a national average that may not resemble your city.
The decisive variable is coverage, not the sticker price
Start with the schedules, because they eliminate options before cost ever enters. A center-based daycare has fixed hours, typically a nine-to-ten-hour window, and charges late-pickup penalties by the minute. It does not flex for a delayed case or an overnight call shift. If one of you takes call, or either of you has an operative day that can run long, a center alone will not cover you without a backup plan.
A nanny covers the hours you contract for, including early mornings and evenings, and can stay late when a case runs over, which is the single reason many two-physician households pay more for one. A nanny-share, where two families employ one nanny for both sets of children, sits in between: more flexible than a center, less flexible than a solo nanny, and cheaper per family than either.
| Factor | Center daycare | Solo nanny | Nanny-share |
|---|---|---|---|
| Coverage hours | Fixed, ~9-10 hr window | Whatever you contract | Set jointly with the other family |
| Handles a late case or call | No, penalties apply | Yes, if contracted | Sometimes, needs both families to agree |
| Sick-child care | Excluded, child stays home | Included | Depends, other family may object |
| Multiple children | Priced per child | One wage covers all your kids | Split across two families' children |
| Backup when caregiver is out | Built in | You scramble | You scramble |
| Employer obligations | None, you pay an invoice | Full household-employer duties | Shared household-employer duties |
Two features on that table decide most physician households. Sick-child coverage: a center sends a feverish child home and bars return for 24 hours, which for two working physicians means one of you cancels a clinic. A nanny cares for a mildly ill child at home, and that avoided cancellation has real value in lost . Backup: a center is always open even when a specific teacher is out, while a nanny who is sick leaves you with no one, which is the center's underrated advantage.
Key insight
Price the coverage gap, not just the wage. If a center's early close forces one of you to leave clinic 30 minutes early twice a week, value that lost time at your actual hourly production before you conclude the center is cheaper. For a specialist, the avoided cancellations from in-home sick care can offset a large share of a nanny's premium.
What each option actually costs, with sources named
National averages are a starting point, not your number; childcare price varies more by ZIP code than almost any other household expense. Use these as representative figures and then price your local market.
For center-based care, Child Care Aware of America reported a national average price of $13,128 per year in its 2024 Price of Care analysis, and noted that in many states infant care in a center exceeds $20,000 per year. That is a representative 2024 figure, not a 2026 quote, and metropolitan physician markets frequently sit at the high end. Treat $13,000 to $22,000 per child, per year, as the plausible band and confirm with two or three local centers.
A nanny is priced on wages, and here you can compute your own number rather than trust an average. The worked example below uses a representative hourly rate you should replace with quotes from your market.
Example calculation
Assumptions, stated explicitly: one live-out nanny, representative wage of $22/hour (replace with your local quote), 45 scheduled hours per week, 50 paid weeks per year. Live-out nannies are non-exempt under the Fair Labor Standards Act, so hours over 40 in a week are paid at 1.5x.
Regular pay: 40 hr x $22 = $880/week Overtime pay: 5 hr x $22 x 1.5 = $165/week Gross weekly wage: $880 + $165 = $1,045 Annual gross wage: $1,045 x 50 = $52,250
Employer Social Security and Medicare (7.65% of wages): $52,250 x 7.65% = $3,997 Federal and state unemployment tax (representative): roughly $500-$800 Workers' compensation premium (state-dependent, representative): roughly $400-$1,000
Approximate total employer cost: $52,250 + $3,997 + ~$650 + ~$700 = about $57,600/year
One wage covers every child you have, so for two or three children a nanny's per-child cost can fall below a center's.
A nanny-share splits one nanny across two families. The nanny usually commands a higher hourly rate for minding more children, but each family pays a share, so a representative outcome is that each household pays roughly 55 to 65 percent of what a solo nanny would cost. You also split the employer paperwork, though both families carry their own tax obligations on the wages they pay.
The part physicians get wrong: you are now an employer
Hire a nanny and you are a household employer in the eyes of the IRS, the same as any small business, and the rules are not optional. This is where high earners most often expose themselves.
If you pay any one household employee cash wages of $3,000 or more in 2026, you owe Social Security and Medicare tax (7.65 percent from you, matched by 7.65 percent withheld from the employee), you must issue a Form W-2, and you report it all on Schedule H with your personal return. That $3,000 threshold is the figure IRS Publication 926 sets for 2026, up from $2,800 in 2025. Separately, if you pay $1,000 or more in cash wages in any single calendar quarter, you owe federal unemployment tax under the FUTA test. Your state almost certainly requires state unemployment registration and, in most states, a workers' compensation policy; both are state-specific, so check your state's rules directly.
A nanny is your employee, not an independent contractor. You cannot hand a nanny a Form and call it done; the IRS treats in-home childcare under your direction and control as employment. Misclassifying to avoid payroll tax is the same error whether a hospital does it to a physician or a physician does it to a nanny.
Important
Paying a nanny "under the table" is not a gray area. It is unpaid federal and state employment tax, and in most states it is wage theft the moment overtime goes unpaid or no workers' compensation coverage exists. It also strips your nanny of Social Security credits and unemployment eligibility, and it makes your dependent care FSA reimbursements unsupportable, because those require a documented, tax-compliant caregiver. The downside is not hypothetical; back taxes, penalties, and state labor findings all attach to you personally.
Payroll services exist because the paperwork is real
The compliance load, quarterly filings, W-2 issuance, Schedule H, state unemployment returns, and tracking overtime, is why household payroll services exist. For a representative fee in the range of a few hundred dollars a year, a payroll service registers you as an employer, runs withholding, files the state and federal returns, and issues the W-2. For two physicians whose scarce resource is time, outsourcing this is usually rational; the fee is small next to the cost of a missed filing or a misclassification finding. The alternative is to run it yourself, which is feasible but adds a recurring administrative task to two already-full schedules. Building this into a shared system is exactly what the household money systems guide is for.
Overtime is a rule, not a courtesy
Because a live-out nanny is non-exempt under the Fair Labor Standards Act, every hour over 40 in a workweek is paid at one and a half times the regular rate. This is federal law administered by the Department of Labor, not a negotiating point. If your call weeks push the nanny to 50 or 55 hours, those extra hours are overtime, and budgeting for straight-time only will leave you underpaying, with liability attached.
Live-in nannies are treated differently. A domestic worker who resides in your home is exempt from the overtime requirement under Section 13(b)(21) of the Fair Labor Standards Act, though the minimum-wage requirement still applies to all hours worked. So a live-in arrangement removes the overtime premium but not the wage floor or the tax obligations. If irregular, long hours are your reality, the live-in exemption changes the math meaningfully; price it separately.
Quick takeaway
A live-out nanny earns overtime after 40 hours in a week; a live-in nanny is exempt from overtime but still owed at least minimum wage for all hours and full employment taxes. Whichever you choose, the $3,000 wage threshold triggers Social Security and Medicare tax, a W-2, and Schedule H reporting for 2026.
The dependent care FSA reaches all three, if you stay compliant
Whichever arrangement you pick, the dependent care FSA can reimburse the care portion pre-tax up to the 2026 household limit, but only for compliant care. A center's invoice with a tax ID supports it automatically. A nanny supports it only if you have the nanny properly on payroll with a Social Security or tax identification number, which is another reason the under-the-table route quietly costs you the FSA benefit. The full analysis of whether the FSA is worth electing at your income, and how it interacts with the tax credit, is in the dependent care FSA breakdown. Coordinating both incomes and both benefit menus is covered in two-physician household optimization, and the filing mechanics of Schedule H alongside a two-earner return are in the married-filing physicians tax guide.
Common questions
Is a nanny always more expensive than daycare?
Not per child. A center charges for each child, while one nanny's wage covers every child you have. For one child a center is usually cheaper; at two children the gap narrows sharply, and at three a nanny is often less expensive per child, before you even value the extra coverage hours and sick-child care.
Can I just pay my nanny cash and skip the paperwork?
No. Once you pay any household employee $3,000 or more in 2026 you owe Social Security and Medicare tax, must issue a W-2, and report on Schedule H. Paying off the books is unpaid tax and, in most states, unpaid-overtime and workers' compensation exposure that attaches to you personally, and it disqualifies the wages from dependent care FSA reimbursement.
Do I owe my nanny overtime?
A live-out nanny, yes: every hour over 40 in a week is paid at 1.5x under the Fair Labor Standards Act. A live-in nanny is exempt from overtime but still must be paid at least minimum wage for all hours worked. Budget for overtime if your call schedule pushes long weeks.
What is a nanny-share and does it help with coverage?
Two families employ one nanny for both sets of children, splitting the wage. Each family typically pays roughly 55 to 65 percent of a solo nanny's cost, gaining more flexibility than a center but less than a solo nanny. Coverage depends on both families agreeing on hours and sick-care rules, so align those before you start.
What to do next
- Map your true coverage need first: earliest drop-off, latest pickup, call frequency, and how a sick child would be handled, then rule out any option that cannot meet it.
- Get two or three local quotes for each viable option rather than relying on a national average, and note per-child versus per-family pricing.
- For any nanny option, price the full employer cost, wages plus the 7.65 percent employer payroll tax plus state unemployment and workers' compensation, not just the hourly rate.
- Confirm your state's workers' compensation and unemployment registration requirements, since both are state-specific.
- If you hire a nanny, put them on payroll from the first paycheck, using a household payroll service if your time is scarce, and issue a W-2.
- Elect the dependent care FSA to reimburse the compliant care portion pre-tax, and keep the documentation that supports it.
The right answer is the arrangement that covers your actual hours at a total cost, including employer obligations, that you have priced honestly. The protocol above works with or without us. This is education, not individualized financial advice.