Nanny Payroll Taxes: What Household Employers Pay

Add up every tax obligation a household employer owes in 2026 and the number landing on top of a $75,000 nanny salary is roughly $8,200 — before workers’ compensation, paid leave, or benefits. Most families budget for the paycheck. Almost none budget for what sits behind it.

The nanny tax is shorthand for a cluster of federal and state obligations that kick in the moment you pay a household employee $3,000 or more in a calendar year (IRS Publication 926, 2026). At that threshold, you become a household employer in the eyes of the IRS — responsible for withholding, matching, and remitting Federal Insurance Contributions Act taxes, paying federal unemployment tax under the Federal Unemployment Tax Act (FUTA), and filing a Schedule H with your Form 1040. The Form W-2 requirement follows the same $3,000 trigger.

This analysis models the full employer-side tax load for a full-time nanny in 2026, calculates the Finluxy Childcare True Cost Rate across three salary tiers, and maps the available offsets — including a Dependent Care FSA limit that jumped significantly this year.

Key Numbers at a Glance

Sources: IRS Publication 926 (2026); IRS Publication 15-B (2026); Beverly.io nanny workers’ comp guide (February 2026); IRS Revenue Procedure 2025-32 / OBBBA.

The Employer Tax Stack, Line by Line

Consider a nanny earning $75,000 gross. The calculation is mechanical — but the sequence matters, because each obligation has its own wage base, rate, and remittance schedule.

Federal Insurance Contributions Act (FICA)

Employer FICA is a flat 7.65% on all cash wages: 6.2% for Social Security (applied to the first $184,500 of wages — the 2026 Social Security wage base per IRS Publication 926) and 1.45% for Medicare on all wages with no cap. On a $75,000 salary, that produces $4,650 in Social Security tax and $1,087.50 in Medicare tax — a combined employer FICA cost of $5,737.50. The nanny owes the identical 7.65% from their side of the ledger; you withhold that from gross pay and remit both halves together.

Some employers choose to pay both the employer and employee shares themselves. This is legal under IRS rules but converts the employee share into additional taxable income — a detail that affects the nanny’s W-2 reporting and your total cost simultaneously. Check the true cost of a full-time nanny with benefits for a complete modeling of that option.

Federal Unemployment Tax Act (FUTA)

FUTA is an employer-only tax — nothing is withheld from the nanny. The statutory rate is 6% on the first $7,000 of wages, which produces a gross liability of $420. In most states, employers receive a 5.4% credit for paying state unemployment insurance on time, cutting the effective rate to 0.6% and the actual payment to $42 per year. Credit reduction states — California is the most notable for household employers in 2026 — carry a lower credit, raising effective FUTA costs. For a California household employer in a credit reduction year, the effective rate can approach 1.2%, lifting FUTA liability to $84.

FUTA is reported on Schedule H (Form 1040) and deposited quarterly when cumulative liability exceeds $500; otherwise carried forward to year-end. Because the $7,000 wage base is hit early in the year for most full-time nannies, the actual cash outlay front-loads into Q1.

State Unemployment Insurance

State unemployment insurance (SUI) rates vary by state and by an employer’s experience rating. New employers typically receive an assigned rate — often in the 2%–3% range on a state wage base that differs from the federal $7,000. New York’s 2026 new employer SUI rate is 4.025% on the first $12,800 of wages per employee (New York Department of Labor, 2026), producing a first-year liability of $515. California new employer rates run 3.4% on the first $7,000, yielding $238. Because SUI is state-specific, it is excluded from the federal-only model below but must be accounted for in any realistic budget.

Workers’ Compensation Insurance

At least 15 states require workers’ compensation coverage for household employees, including California, New York, Illinois, Massachusetts, and Washington, according to Beverly.io (February 2026). Even in states where it is optional, forgoing it creates unlimited personal liability for medical costs and lost wages if the nanny is injured on the job. A standalone policy runs $300 to $800 per year depending on the nanny’s wages, the state, and the insurer. Some homeowners insurance policies offer a domestic worker endorsement for $100 to $300 per year — less coverage, but a starting point. The nanny cost guide for $150k+ households covers insurance structuring in more detail.

Finluxy Childcare True Cost Rate: Three Salary Scenarios

Gross salary is what most families negotiate. The Finluxy Childcare True Cost Rate converts total employer spending — taxes, insurance, and amortized one-time costs — into a per-hour cost of care that can be compared directly to published market rates.

The formula: Total annual cost ÷ annual care hours = $/hour. Annual care hours assume 50 working weeks × 45 hours per week = 2,250 hours. Agency placement fee amortized over two years at a typical fee of $3,000–$5,000 (midpoint $4,000 ÷ 2 = $2,000/year). Workers’ compensation uses the midpoint estimate of $550/year. See the nanny agency placement fee breakdown for placement cost ranges by market.

Sources: Employer FICA — IRS Publication 926 (2026); FUTA — IRS Publication 926 (2026); Workers’ comp — Beverly.io (February 2026); Agency fee — midpoint of market range per INA and Care.com data. Market comparison: Care.com 2026 Cost of Care Report cites a national average posted nanny rate of $21.75/hr. The Finluxy Childcare True Cost Rate exceeds that figure by $5.72–$24.85/hr depending on salary tier, because posted hourly rates are the nanny’s gross — not the employer’s total cost.

The gap between what the nanny earns per hour and what the employer actually spends per hour is the number most households underestimate. At the $75,000 salary tier, the Finluxy Childcare True Cost Rate of $37.03/hr is 70% higher than the $21.75/hr average rate families see posted on Care.com (Care.com 2026 Cost of Care Report). A family negotiating a $75,000 salary and assuming that is their cost is off by over $8,000 before accounting for paid time off or any health insurance contribution. For the five-year projection, see the nanny vs. daycare center 5-year cost comparison.

Tax Offsets: What Actually Reduces the Bill

Two federal mechanisms exist to reduce the after-tax cost of childcare for employed parents. For $150k+ households, how each is structured in 2026 matters more than usual — because OBBBA changed both limits significantly.

Dependent Care FSA

Starting January 1, 2026, the Dependent Care FSA limit increased from $5,000 to $7,500 per household (or $3,750 for married individuals filing separately) under the One Big Beautiful Bill Act, as confirmed by IRS Publication 15-B (2026). This is a pre-tax benefit — contributions reduce gross income before federal, state, Social Security, and Medicare taxes are calculated. At a combined marginal federal rate of 32% (the bracket for joint filers with taxable income between $383,900 and $487,450 in 2026), maxing the Dependent Care FSA at $7,500 produces a federal tax reduction of $2,400, plus Social Security and Medicare savings on the contributed amount.

The mechanism runs through an employer-sponsored cafeteria plan, so self-employed household employers cannot use it — only the employed parent. Highly compensated employee nondiscrimination testing also caps contributions for some at $2,100 in plans that do not pass annual testing. The Dependent Care FSA analysis models the actual savings by income bracket.

Child and Dependent Care Tax Credit

The Child and Dependent Care Tax Credit (CDCTC) was restructured under OBBBA effective 2026. The maximum credit rate increased from 35% to 50% of qualifying expenses. But the phase-down schedule matters: for joint filers with AGI between $150,000 and $210,000, the credit percentage phases down from 35% to 20% (Mercer OBBBA analysis, 2025; H&R Block OBBBA guide, 2025). At 20% on capped expenses of $3,000 (one child) or $6,000 (two or more children), the maximum credit available to a household earning $200,000 jointly is $600 or $1,200, respectively.

Expenses applied toward a Dependent Care FSA reduce the pool eligible for the CDCTC dollar-for-dollar. A family contributing $7,500 to a Dependent Care FSA and paying for one child’s care has no eligible expenses remaining for the CDCTC ($7,500 FSA > $3,000 expense cap). Two-child families retain $0 in eligible expenses after a full FSA contribution as well, since $7,500 exceeds the $6,000 two-child cap. In practice, the Dependent Care FSA is the more valuable offset for most $150k+ households in 2026 — both because the marginal tax rate makes pre-tax savings more impactful and because the CDCTC phase-down erodes the credit substantially at these income levels. See how much the childcare tax credit actually saves by income band.

Sources: Dependent Care FSA limit — IRS Publication 15-B (2026); CDCTC phase-down — OBBBA as analyzed by Mercer (2025) and H&R Block (2025); federal tax bracket — IRS Rev. Proc. 2025-28 (2026 brackets).

The Overlooked Cost: Paid Time Off

Published nanny salary figures — including the Care.com averages — are hourly or weekly rates for hours worked. They do not include paid time off, which most professionally managed household employment arrangements include and which adds a real dollar cost that never appears on a tax form.

The International Nanny Association’s salary and benefits surveys consistently show that the majority of full-time nannies receive two weeks of paid vacation plus paid federal holidays. Two weeks of vacation plus 10 federal holidays equals 24 days — or 4.8 weeks — of paid time off on a 5-day schedule. On a $75,000 annual salary, that represents roughly $7,211 in wages paid for days not worked (calculated as $75,000 ÷ 52 × 4.8). That figure also triggers the full employer FICA match, adding another $551 in taxes on top of it. The Finluxy Childcare True Cost Rate above does account for PTO in the denominator (hours of care) but not in the numerator — adding PTO to the cost basis raises the $75,000-tier rate from $37.03/hr to approximately $40.59/hr on 2,250 care hours.

Families running a nanny share split the salary but typically retain the full PTO obligation for each employing family — a nuance that shrinks the share savings calculation.

How This Changes by Geography

Federal obligations are uniform. State obligations are not — and for high-cost metro households, the state layer can add $1,500 to $3,000 annually on top of the federal baseline.

Sources: New York SUI — NY Department of Labor (2026); California SUI — EDD (2026); Illinois SUI — IDES (2026 new employer rate); Texas SUI — TWC (2026); Florida SUI — DEO (2026). Workers’ comp requirement — Beverly.io (February 2026). SUI estimates use state new employer rates applied to respective wage bases; actual rates vary by experience rating after the first year.

New York households face the sharpest state-level exposure: mandatory workers’ compensation, a 4.025% new employer SUI rate on $12,800 (yielding $515 annually), and New York City’s additional payroll tax on household employers earning above certain thresholds. The combined federal-plus-state tax burden in New York on a $75,000 nanny salary can exceed $9,500, compared to roughly $7,000 in a state like Florida with no workers’ comp mandate and a lower SUI base. The city-by-city childcare cost breakdown shows how these obligations compound with higher average nanny wages in major metros.

Practical Context for $150k+ Households

A household earning $150,000–$250,000 jointly occupies an uncomfortable middle band: too wealthy to qualify for the CDCTC at its most generous rates, wealthy enough that a Dependent Care FSA actually delivers meaningful savings, but not wealthy enough to absorb nanny payroll costs without careful planning. The $7,500 Dependent Care FSA is now the most efficient tool available at this income level — a $2,400 federal tax reduction with no phase-out — though it requires access through an employer’s benefits plan.

The decision between a nanny and a luxury daycare center often gets framed around tuition vs. salary. The more accurate comparison is total employer cost (including FICA, FUTA, workers’ comp, and PTO) against daycare’s all-in annual cost (tuition, enrollment fees, supply fees). At the $75,000 salary tier, the Finluxy Childcare True Cost Rate of $37.03/hr translates to $83,330 annually before health insurance contributions. A premium urban daycare typically runs $30,000–$50,000 per year — still less, but the nanny’s flexibility and one-to-one ratio carry value that tuition figures don’t capture.

For households considering a live-in arrangement, the cost structure shifts further. Room and board has a calculable fair market value that affects both the nanny’s taxable income and the employer’s benefit obligation. The live-in nanny room and board cost analysis walks through that math separately.

Finally, households where one income is significantly outearned by childcare costs deserve a separate analysis. When a second salary nets below the total employer cost of care — including taxes — the return-to-work math shifts considerably. The comparison of childcare cost against a second income models that trade-off for multiple salary levels, including the scenario where care costs exceed a $70,000 salary. At the $150k+ household level, the nanny tax burden alone is not typically a dealbreaker — but it is a $6,000–$10,000 line item that should appear in the budget before the offer letter goes out.