Nanny vs Daycare vs Au Pair After Taxes: $17,800, $47,500, or $25,400 a Year for One Child With a $7,500 DCFSA
Your maternity leave ends in six weeks. You have a $1,700-a-month daycare quote, a nanny who wants $22 an hour, and a friend telling you an au pair is "basically free." Which one is cheapest?
You can't know from the sticker price. The sticker price is the least useful number in this decision. What you pay depends on your tax bracket, your employer's benefits, how many kids you have, and how old they are.
This post walks through one worked example. Every dollar figure below is an illustrative example I built, not a survey result or a quote from your area. Swap in your own numbers and the winner can change.
A "barrel" isn't a barrel, and "$1,700 a month" isn't $1,700 a month
The Tax Foundation piece "States' Nonconformity with Federal Measurements Creates 'Barrels' of Compliance Costs" is about liquid taxes, not kids. Its point still applies to childcare. Some states define a "barrel" differently than the standard measurement, so a business paying tax in several states has to convert every number before comparing them.
Childcare quotes work the same way. "Full-time" at one center means 50 hours a week. At another it means 40, with late fees after that. A nanny's "$22 an hour" doesn't include the employer's share of payroll tax. An au pair's "$200 a week" doesn't include the agency fee or the spare bedroom.
Before you compare anything, convert every option into one unit: total annual out-of-pocket cost after taxes and credits.
The example household
- Two parents, joint income $140,000
- One child, age 1
- 22% federal bracket, 5% state income tax, 7.65% FICA (Social Security and Medicare)
- Employer offers a dependent care FSA (DCFSA), which lets you pay for childcare with pre-tax dollars
Federal law raised the household DCFSA limit to $7,500 starting in 2026, up from $5,000. Confirm your employer's plan actually offers the higher amount. Some plans lag behind the law.
Sticker prices for the three options
Daycare (center-based, infant): $1,700 a month, or $20,400 a year. Add registration and supply fees if your center charges them.
Nanny: $22 an hour, 40 hours a week, 52 weeks (paid vacation and sick days included).
| Nanny line item | Annual cost |
|---|---|
| Wages ($22 × 40 × 52) | $45,760 |
| Employer FICA (7.65%) | $3,501 |
| Federal unemployment (FUTA, example) | $42 |
| State unemployment (example) | $300 |
| Workers' comp / liability (example) | $500 |
| Total | $50,103 |
That is the answer to "Do I really have to pay nanny taxes?" Yes. If you pay a nanny above the IRS household employee threshold, you are a household employer. The taxes above are your share, and they are why a $45,760 wage becomes a $50,103 cost. For the full breakdown, see Nanny Taxes 2026: What You Actually Owe as a Household Employer.
Au pair (example):
| Au pair line item | Annual cost |
|---|---|
| Weekly stipend (about $200 × 52) | $10,400 |
| Agency and program fees | $9,500 |
| Required education allowance | $500 |
| Room and board (spare room, food, utilities) | $7,000 |
| Health, phone, and other extras | $600 |
| Total | $28,000 |
The au pair only looks cheap if you leave out the last four rows. If you have no spare bedroom, this option may not work at all. That is a housing question, not just a childcare one.
Applying the tax breaks
Here is how the DCFSA changes each number.
DCFSA math at your bracket: $7,500 contributed pre-tax avoids 22% federal tax and 7.65% FICA, which is 29.65%, or $2,224. Add 5% state tax, or $375. Total savings: $2,599.
Dependent care credit: For one child, the credit applies to at most $3,000 of expenses. Every dollar you run through the DCFSA comes off that $3,000. With a $7,500 DCFSA, the credit drops to $0 for one child. If you skip the DCFSA, the credit at this income would be roughly 20% of $3,000, about $600, which is far less than $2,599. For two kids the credit cap is $6,000, which still leaves nothing after a $7,500 DCFSA. Congress changed the credit's rates in 2026, so check Form 2441 for your exact percentage. For a deeper walk-through, see DCFSA vs Dependent Care Credit 2026: Which Cuts Your Daycare Bill More?
Child Tax Credit: This credit doesn't depend on how you provide care. It's the same whether you choose daycare, a nanny, or an au pair, so it doesn't change the comparison. Don't count it as a childcare savings.
Results after the DCFSA:
| Option | Sticker cost | DCFSA savings | Net annual cost |
|---|---|---|---|
| Daycare | $20,400 | $2,599 | $17,801 |
| Au pair | $28,000 | $2,599 (if eligible) | $25,401 |
| Nanny | $50,103 | $2,599 | $47,504 |
Assumption to check: not every au pair cost is DCFSA-eligible. Stipends generally qualify as care expenses. Room and board and agency fees may not. Ask your plan administrator before you count on the full $2,599.
At this income, daycare beats the nanny by $29,703 a year. The DCFSA barely moves the ranking, because it saves the same $2,599 no matter which option you pick.
For more on stacking these breaks, see DCFSA + Dependent Care Credit + Child Tax Credit: How Much Do You Actually Save on Daycare?
This is the kind of analysis Kelivon runs for you, so you don't have to build the spreadsheet yourself.
Your variables change the winner
Variable 1: How many kids you have
Nanny cost barely changes when you add a second child. Daycare cost roughly doubles, even after a sibling discount.
Break-even for two kids in daycare vs one nanny (using the $50,103 nanny above): $50,103 ÷ 24 months = $2,088 per child per month. If your daycare quote is above that per child, the nanny is cheaper. If it's below, daycare wins. In the example, two infants at $1,700 each cost $40,800, so daycare still wins by $9,303. The gap is much smaller than with one child.
The DCFSA limit is per household, not per child. At two kids, the $2,599 savings is the same for either arrangement, so it doesn't change this break-even.
For the two-child math in more detail, see Two Kids, One Nanny vs Two Daycare Spots in 2026.
Variable 2: Whether you can share a nanny
Say a second family joins your nanny. To make the arrangement worthwhile for the nanny, assume a 20% raise for handling two children. The total employment cost becomes $50,103 × 1.2 = $60,124, and each family pays half: $30,062 a year.
That is still $9,662 more than the $20,400 daycare sticker price. The share only beats daycare when your daycare quote is above about $2,505 a month (that is $30,062 ÷ 12). In a high-cost metro with $2,700-a-month infant rooms, that is where the share starts to make sense. In a $1,700 metro, it doesn't.
Variable 3: Your child's age
Infant care is the most expensive stage. A nanny's cost doesn't fall as your child grows, while daycare cost does. Here is an illustrative five-year curve (example rates only):
| Age | Daycare per month | Daycare per year | Nanny per year |
|---|---|---|---|
| 1 | $1,700 | $20,400 | $50,103 |
| 2 | $1,400 | $16,800 | $50,103 |
| 3 | $1,400 | $16,800 | $50,103 |
| 4 | $1,200 | $14,400 | $50,103 |
| 5 | $1,200 | $14,400 | $50,103 |
| 5-year total | $82,800 | $250,515 |
The nanny option only stays this high if you keep a full-time nanny after preschool. Many families switch to part-time or after-school care at that point, and that changes everything. For the kindergarten transition specifically, see Head Start and CCDF Subsidies in 2026: Why Your Last Year of Preschool Still Costs $8,400.
Variable 4: Your income and tax bracket
The DCFSA saves more at a higher bracket. It saved 34.65% of $7,500 in the example. At a 12% federal bracket with no state income tax, the same $7,500 saves 19.65%, or $1,474. At a 32% federal bracket with 5% state tax, it saves 44.65%, or $3,349. That is a $1,875 swing on the same bill.
If your income is low enough, you may also qualify for a state subsidy that changes everything. The Child Care and Development Fund (CCDF) is the federal money states use for childcare assistance, and income limits vary widely by state. See CCDF Subsidy Eligibility in 2026 for who qualifies.
Variable 5: Single-parent households
A single parent on $70,000 earns less than the two-parent example, so the tax savings are smaller. The 22% bracket applies to a single filer above roughly $50,000, so the DCFSA would save about 34.65% at the same 5% state rate. But the $47,504 nanny cost would be 68% of gross income. In that case, the question "Is it even worth going back to work?" is really about daycare at $17,801, which is about 25% of gross income. If a second adult's income isn't part of the picture, the childcare share of income matters more than the dollar amount.
The surprise costs that don't show up on quotes
NerdWallet's "I Can't Stop Buying Surprise Bags" is about impulse purchases, but the mechanism applies to childcare. The appeal of a surprise bag is that you don't know what's inside until you open it. Childcare has its own version:
- Registration and annual supply fees
- Late-pickup fees (often charged per minute)
- Closed days for holidays and staff training, when you need backup care
- A nanny's sick day, when you have to burn your own PTO
- Payroll service fees if you don't want to file nanny taxes yourself
Add $1,000 to $3,000 a year to any option as a buffer until you have real numbers. Kelivon's nanny guide covers this in Nanny Tax Compliance in 2026: DIY, CPA, or Payroll Service.
Childcare competes with your housing budget
Two NerdWallet pieces frame the trade-off. "I Edit Mortgage Advice for a Living — and Still Rent" describes an editor who rents at 54 after comparing the true cost of buying, including down payment and investing returns. And "Mortgage Rates Today, Wednesday, September 23: Easing, But Still Above 7%" says rates dropped slightly but remain above 7%.
Here is what that means in dollars, as an example. A $400,000 mortgage at 7% over 30 years costs about $2,661 a month in principal and interest. At 6% it would be about $2,398. That is a difference of $263 a month.
A nanny at $47,504 net is about $3,959 a month. Daycare at $17,801 net is about $1,483 a month. The $2,476-a-month gap between them is roughly the size of a mortgage payment. If you're deciding between buying a home and a nanny in the same year, you're choosing between two payments of the same size.
Local costs also weigh on family budgets everywhere. NerdWallet's "Data Centers Are a Potent, Bipartisan Battleground in the Midterms" reports on voter concern about anticipated local costs. The takeaway isn't political. It's that your budget has many moving parts, and childcare is usually the largest one for families with young kids.
You can model this for your specific situation at Kelivon.
How to run your own numbers
- Get real quotes. Ask for the all-in monthly number, including fees, for the hours you actually need.
- Convert to a yearly total. For a nanny, add employer FICA (7.65%), unemployment taxes, and workers' comp.
- Find your marginal rate. Add your federal bracket, state tax rate, and 7.65% FICA.
- Calculate the DCFSA savings. Multiply your contribution (up to your plan's limit) by that combined rate.
- Check the credit. Subtract DCFSA dollars from the $3,000 (one child) or $6,000 (two kids) credit cap. Compare the remainder to what you'd get without the DCFSA.
- Check subsidies. Look up your state's CCDF income limit.
- Model each year. Run the costs from infant through kindergarten.
- Add a buffer for surprise costs.
Only after you have all eight numbers can you say what each option truly costs. There's no wrong choice for your family. Some parents choose a nanny for scheduling reasons, an au pair for flexibility, or daycare for the structure. The numbers just show you what each one costs so you can decide with clear eyes. Before you sign anything, compare the total after taxes, credits, and fees, and let those numbers guide the decision.
Ready to see your own totals? Enter your metro area, income, number of kids, and employer benefits at Kelivon and compare daycare, nanny, and au pair costs side by side before you commit.
Sources
- States’ Nonconformity with Federal Measurements Creates “Barrels” of Compliance Costs — Tax Foundation
- I Edit Mortgage Advice for a Living — and Still Rent — NerdWallet Family Finance
- Data Centers Are a Potent, Bipartisan Battleground in the Midterms — NerdWallet Family Finance
- Mortgage Rates Today, Wednesday, September 23: Easing, But Still Above 7% — NerdWallet Family Finance
- I Can’t Stop Buying Surprise Bags — NerdWallet Family Finance