The Nanny Tax in 2026: True Employer Cost Calculator + Schedule H Guide

Not tax or legal advice. Applies to U.S. households that directly employ a domestic worker. Consult a CPA or payroll service for state-specific requirements and actual filing.

1. Does the nanny tax apply to you?

You're a household employer subject to federal payroll taxes if you pay a domestic worker — nanny, au pair, full-time babysitter, housekeeper, or home health aide — $3,000 or more in cash wages during 2026.¹ This threshold increased from $2,700 in 2025.

The FICA threshold does NOT apply if:

• Total wages paid to the employee stay below $3,000 for the full calendar year
• The worker is under 18 and providing household services is not their principal occupation (typical teenage babysitter)
• You pay through an agency that classifies the worker as its own employee and bills you a fee
• You pay your own child under age 21, your spouse, or your parent in most circumstances

FUTA is a separate test: You owe federal unemployment tax if you paid a household employee $1,000 or more in cash wages in any single calendar quarter of 2025 or 2026. FUTA applies to the first $7,000 of annual wages per employee. The gross rate is 6%, reduced to roughly 0.6% (about $42/year) after the 5.4% credit for state unemployment taxes paid.¹

2. What the nanny tax costs you

Social Security wage base $184,500 per IRS Topic 751 (2026).² Nearly all nannies earn well below the SS wage base, so the 6.2% rate applies to all wages. FUTA credit assumes full 5.4% credit for state unemployment paid on time; the net federal rate rises to 6% if the state credit is unavailable.

Your employer share of FICA (7.65%) is an out-of-pocket cost on top of wages — it is not deducted from the nanny's paycheck. You withhold the employee's matching 7.65% from their gross pay, along with federal income tax if the nanny submits a Form W-4 requesting withholding.

3. Household employer cost calculator

Enter the nanny's annual wages to see your total employer outlay and how much the DCAP FSA can offset.

4. What to file: Schedule H and the W-2

Household payroll taxes go directly on your personal income tax return — not on a separate business return, and not on quarterly Form 941s (those are for business employers).

Estimated taxes: Schedule H increases your tax liability at filing. If you don't increase quarterly estimated payments (Form 1040-ES) or adjust withholding at your own job, you may owe a penalty for underpaying.³ A quick rule of thumb: add your annual employer FICA to your total tax estimate and divide by 4 to find the quarterly adjustment needed.

5. The DCAP FSA: reducing your true nanny cost

If your employer offers a Dependent Care Assistance Plan (DCAP) FSA and your nanny cares for a child under age 13 while both spouses work, the wages qualify as dependent care expenses under IRC §129.⁴

The 2026 DCAP FSA limit is $7,500 — the first permanent increase since 1986, enacted by OBBBA (July 2025). How the savings stack up across marginal rate combinations:

FSA and the childcare tax credit interact: You must reduce Child and Dependent Care Credit (CDCTC)-eligible expenses by any FSA benefits received. At the $7,500 FSA limit, the CDCTC base ($6,000 max for 2+ kids) is wiped out entirely — no double-dipping. For families earning $150K-$500K, this trade-off favors the FSA because your marginal rate (24-35%) produces larger savings than the 20% CDCTC rate. See the full FSA vs. CDCTC comparison.

6. Why paying legally protects both you and the nanny

Paying "off the books" may feel simpler, but it creates real exposure for you — and real harm to the nanny:

For the employer: Unreported household wages can surface during an IRS audit, when the employee files for unemployment, or during a background check for security clearance or political office. Back taxes, interest, and a 20% negligence penalty apply. Several high-profile cabinet nominees have withdrawn due to unreported nanny wages.

For the nanny: Every year worked off the books is a year with $0 credited toward Social Security's 35-year benefit calculation. A nanny earning $50,000/year for 10 years off the books can lose $400–$800/month in retirement benefits permanently. They also lose Medicare credit, unemployment eligibility, and employment history for future housing and credit applications.

7. State requirements vary significantly

Federal payroll taxes are the floor. Many states require additional obligations:

• State unemployment insurance (SUI): Required in most states; wage thresholds vary and are usually lower than the federal FUTA threshold.
• Workers' compensation: California, New York, and many other states require household employers to carry workers' comp once wages exceed a threshold. New York requires it regardless of hours worked.
• Paid sick leave / paid family leave: Mandatory for household employees in California, New York, Washington, New Jersey, Colorado, and several other states — including employee and employer contribution requirements.
• State income tax withholding: Most states require withholding from nanny wages; some require it even if the employee doesn't request it.

California requires household employers to register with the Employment Development Department once wages reach $750 in a calendar quarter. New York requires a Notice of Pay Rate at time of hire. A household payroll service handles most of these state-by-state requirements automatically.

8. Payroll service vs. DIY

Most families find a dedicated household payroll service worth the cost ($50–$100/month) given the state filing complexity, quarterly SUI payments, W-2 production, and new hire reporting it eliminates. Commonly used options include Homepay (Care.com), SurePayroll's household tier, and Poppins Payroll. The annual all-in cost is $600–$1,200 — roughly 1–2% of a $60,000 nanny salary and typically deductible as a business expense if the nanny cares for a dependent while you work.

Alternatively, a CPA who handles household employment can prepare Schedule H and the W-2/W-3 annually (typical cost: $200–$500), while you handle payroll distribution yourself.

9. How nanny costs fit your household financial plan

At $50,000–$80,000 in annual wages plus employer taxes, the nanny is often the single largest household expense after the mortgage. Three interaction points to manage:

1. The 401(k) vs. 529 tradeoff: High fixed childcare costs are the main reason families underfund both retirement and college savings. The prioritization order matters: capture the 401(k) match before funding 529s, and use the HSA before taxable savings. See the 401(k) vs. 529 prioritization calculator.
2. HSA compatibility: A general-purpose DCAP FSA at either spouse's employer blocks HSA contributions for the entire household for that year. If you're on an HDHP, use a limited-purpose FSA (dental/vision only) through the HDHP-covered spouse and a regular DCAP FSA through the other. See the dual-income open enrollment guide.
3. Emergency fund sizing: Nanny wages are a fixed monthly obligation (~$4,600–$6,700/month for a full-time nanny at $55K–$80K). Your emergency fund target should reflect that obligation — typically 3–6 months of total household expenses including payroll. See the family emergency fund calculator.

Sources

1. IRS Publication 926 (2026) — Household Employer's Tax Guide. Authoritative source for the $3,000 FICA threshold (increased from $2,700), FUTA rules, Schedule H filing requirements, new hire reporting, and W-2 obligations for household employers.
2. IRS Topic 751 — Social Security and Medicare Withholding Rates. Confirms the 6.2%/6.2% Social Security rate, $184,500 SS wage base for 2026, and the 1.45%/1.45% Medicare rate with no wage base cap.
3. IRS — About Schedule H (Form 1040), Household Employment Taxes. Annual (not quarterly) reporting structure, who must file, and the link to estimated tax payment obligations.
4. IRS Publication 503 — Child and Dependent Care Expenses. Confirms nanny wages qualify as dependent care expenses under IRC §129, qualifying child definition (under age 13), and the interaction rule reducing CDCTC eligible expenses by DCAP FSA benefits received.

FICA threshold $3,000 and SS wage base $184,500 verified against IRS Publication 926 and IRS Topic 751 (2026 tax year). DCAP FSA limit $7,500 reflects OBBBA (July 2025) permanent increase from $5,000. FUTA net rate ~0.6% based on full 5.4% state credit; verify with your state unemployment agency if your state rate is below 5.4%.