Nanny vs. Daycare vs. Au Pair Cost Comparator
Compare the true all-in monthly and annual cost of a nanny (with payroll taxes), daycare center, or au pair for your family's specific childcare needs.
Calcady™ · Calculation Report Nanny vs. Daycare vs. Au Pair Cost Comparator calcady.com Note: Nanny costs include an estimated 8% employer payroll tax. Au Pair agency fee is annualized over a 12-month program period. Consult a tax professional for exact rates in your state. Option A: Nanny$/hr hrs/wk True Monthly Cost (incl. 8% payroll tax):$4,118 Option B: Daycare Center$/mo True Monthly Cost (1 child):$1,800 Option C: Au Pair$ $/wk $/mo True Monthly Cost (all-in):$2,117 Best Value Daycare $1,800/mo Calculated result for Nanny (True Cost): Nanny (True Cost)$4,118 $49,421/yr incl. employer taxes Calculated result for Daycare (Total): Daycare (Total)$1,800 $21,600/yr for 1 child Calculated result for Au Pair (All-In): Au Pair (All-In)$2,117 $25,400/yr incl. agency fee |
Quick Answer: What's the real cost difference between a nanny, daycare, and au pair?
A nanny's "sticker price" understates the true cost by ~8% because parents must pay FICA, FUTA, and SUTA employer payroll taxes on household employees earning above ~$2,700/year. Daycare tuition multiplies per child. Au pairs carry a large upfront agency fee ($7,000–$15,000) that amortizes across 12 months. This calculator reveals the all-in monthly cost for each option so you compare apples to apples.
Hidden Cost Factors by Childcare Type
| Cost Factor | Nanny | Daycare | Au Pair |
|---|---|---|---|
| Payroll Taxes (FICA/FUTA) | ~8% added | Included | Not applicable |
| Multi-Child Scaling | Same cost | × per child | Same cost (up to 2) |
| Upfront Agency Fee | None/$0 | None/$0 | $7K–$15K |
| Room & Board | No | No | $400–$600/mo |
| Max Hours/Week | Negotiable | Center hours only | 45 hrs max (federal law) |
Pro Tips & Common Mistakes
Do This
- ✓Use a DCFSA (Dependent Care FSA) to pay with pre-tax dollars. Both parents can contribute up to $5,000/year combined to a Dependent Care FSA, paying for childcare with pre-tax income. At a 22% federal bracket + 5% state, that saves roughly $1,350/year in taxes — effectively a 27% discount on the first $5,000 of childcare expenses.
- ✓For 2+ children, re-run the math. A nanny's cost is fixed regardless of children (one nanny watches all). Daycare tuition multiplies per child. Au pairs cover up to 2 children at the same stipend. The "winner" often flips entirely when you add a second child.
Avoid This
- ✗Don't pay a nanny "under the table." The IRS classifies nannies as household employees. If they meet the annual IRS wage threshold ($2,700 for 2024), employers are required to withhold and pay FICA (Social Security and Medicare) and FUTA. Failure to do so is tax fraud — and it eliminates your ability to claim the Child & Dependent Care Tax Credit, which can be worth up to $1,050.
- ✗Don't forget the au pair's hidden costs. Beyond the stipend and agency fee, you must provide a private bedroom, meals, auto insurance if they drive, and pay for their required education credits ($500/year minimum). These "room and board" costs easily add $400–$600/month that families often underestimate.
Frequently Asked Questions
Is a nanny or daycare cheaper for one child?
For a single child, daycare is almost always cheaper. A full-time nanny at $20/hr × 40 hrs/wk costs ~$3,467/mo before taxes; add 8% employer taxes and you're at $3,744/mo. Average U.S. daycare for an infant runs $1,200–$2,200/mo depending on region. However, a nanny becomes competitive at 2+ children because the nanny cost stays flat while daycare doubles.
What taxes do I owe as a nanny employer?
If your nanny earns $2,700+ per year (2024 threshold), you must pay: employer's share of Social Security (6.2%), employer's share of Medicare (1.45%), and Federal Unemployment Tax (FUTA, 0.6% on first $7,000). Many states also require State Unemployment Tax (SUTA). Total employer burden is approximately 7.65–8.5% on top of gross wages. You report this annually on Schedule H of your personal tax return.
Can an au pair work more than 45 hours per week under program rules?
No. The U.S. State Department regulations for the J-1 visa au pair program cap childcare hours at 45 per week and 10 per day. Au pairs must also receive 1.5 consecutive days off per week and one full weekend off per month. Violating these limits can result in program termination and potential visa issues. If you need 50+ hours of childcare, a nanny is the only legal option.