The Nanny Tax: What Household Employers Actually Owe

A household employee is anyone who works in or around your home under your direction: nannies, housekeepers, in-home senior caregivers, private chefs, house managers, regular gardeners. Two separate thresholds matter. Social Security and Medicare taxes kick in when you pay any one worker $3,000 or more in cash wages during 2026. Federal unemployment tax kicks in when you pay $1,000 or more in total household wages in any calendar quarter.

Scale check: a nanny at $20 an hour for 30 hours a week crosses the $3,000 FICA threshold in week five and the $1,000 FUTA threshold in week two. For any real childcare arrangement, assume both apply from day one and set up payroll accordingly. The thresholds exist to exempt the occasional babysitter, not the Monday-through-Friday professional.

A few workers are exempt from FICA regardless of wages: your spouse, your child under 21, workers under 18 whose principal occupation is school, and generally your own parent (with narrow exceptions when a parent provides childcare under certain conditions). Grandma watching the kids is usually outside the system. The au pair, the after-school sitter doing 15 hours a week, and the full-time nanny are usually inside it.

Enter what you pay (or plan to pay) and see the three federal pieces: your FICA share, the employee's share you withhold, and FUTA. The employer premium over salary is smaller than most families expect, typically 9 to 11% once state unemployment is added.

The IRS decides employee-versus-contractor status on control, not on what the parties would prefer or what a contract says. If you set the schedule, define the duties, provide the workplace and the tools, and direct how the job is done, the worker is your employee. That describes essentially every nanny arrangement ever created. A genuine independent contractor runs a business: multiple clients, their own terms, their own tools, profit-and-loss risk.

Misclassifying does not save the tax; it relocates it onto you with penalties attached. When a misclassified nanny files for unemployment after the job ends, the state finds no wage history, opens an inquiry, and the family owes back FICA (both halves), unemployment taxes, penalties, and interest. The nanny, meanwhile, has been overpaying self-employment tax all along: 15.3% out of her own pocket instead of 7.65%. The 1099 shortcut is worse for both sides of the arrangement.

Federally, household payroll is annual, not quarterly. The year's Social Security, Medicare, FUTA, and any income tax you agreed to withhold all total up on Schedule H, filed with your own Form 1040. You need an EIN (free, online, ten minutes), and your nanny needs a W-2 by January 31, with the government copy filed at the same time.

The cash-flow trap: Schedule H taxes are part of your personal tax liability, so waiting until April to fund a full year of household employment tax can trigger an underpayment penalty on your own return. Cover it during the year by bumping your own W-2 withholding or making quarterly estimated payments. On $45,000 of nanny wages, the Schedule H total runs about $7,000; that is not a number to discover in April. The penalty mechanics are the same ones covered in our estimated tax penalty guide.

Income tax withholding for the nanny is optional, by agreement. Most families do withhold, because a nanny who lands a surprise tax bill in April is a nanny with a very reasonable grievance. If you want to understand exactly what those FICA withholdings fund and how the halves fit together, the FICA explainer walks through it.

Every state with an income tax, and most without, requires household employers to register for state unemployment insurance, usually with quarterly wage reports and contributions of roughly 2 to 5% of a state wage base. Paying state unemployment on time is also what earns you the 5.4% federal credit that drops FUTA from 6% to 0.6%; skip the state and the federal bill sextuples.

Workers compensation is the sleeper obligation. A number of states require coverage for household employees above modest hour thresholds, and standard homeowners policies frequently exclude injuries to domestic workers. The failure mode is not a tax penalty, it is an uninsured injury claim in your own home. A rider or standalone policy typically costs a few hundred dollars a year; price it before the start date, not after the ER visit.

Some states and cities add more: paid sick leave accrual, domestic worker bills of rights, pay stub requirements, and new-hire reporting deadlines measured in days. This is the layer where a household payroll service or a CPA who handles household employers earns its fee.

People search "is a nanny tax deductible" and the literal answer is no, there is no deduction for childcare wages. The useful answer is that two tax benefits do the same job better, and both got bigger in 2026.

First, the Child and Dependent Care Credit. Nanny wages paid so you (and your spouse) can work count as qualifying expenses for children under 13, and so do the employment taxes you pay on those wages. The credit covers a percentage of up to $3,000 of expenses for one child or $6,000 for two or more. The One Big Beautiful Bill Act raised the top percentage to 50% starting in 2026, phasing down with income to a floor of 20%. High-income families get the floor: 20% of $6,000 is $1,200 for two or more kids. Not life-changing, but it is real money for filing a form about wages you were paying anyway.

Second, and usually better for high earners: the dependent care FSA through your employer. OBBBA raised the exclusion from $5,000 to $7,500 starting in 2026. Running $7,500 of nanny wages through an FSA avoids federal income tax and FICA on that amount; at a 35% marginal rate plus 1.45% Medicare, that is roughly $2,700 saved. The catch: dollars reimbursed through the FSA reduce the expenses eligible for the credit, so you generally use the FSA first and the credit only on any remaining eligible expenses. With one child, the FSA usually wipes out the credit entirely; run both paths before open enrollment, not after.

Household payroll is also the on-ramp to the rest of family tax planning: once the childcare structure is right, the next questions are usually investment accounts for the kids, where the UTMA vs 529 comparison and the kiddie tax rules decide how much of the family's investment income stays at the kids' rates.

1. The downside is unbounded and badly timed.

Off-the-books arrangements fail at moments of maximum friction: the nanny is let go and files for unemployment, gets injured and files a claim, or retires and discovers years of missing Social Security credits. Each path leads back to you, with back taxes, penalties, interest, and no statute of limitations running on returns that were never filed.

2. The caregiver is building a benefits record on your payroll.

Every legal paycheck adds to your nanny's Social Security earnings record, Medicare eligibility, unemployment coverage, and verifiable income for renting an apartment or getting a car loan. Cash under the table quietly transfers those costs onto the lowest-paid person in the arrangement.

3. The net cost after credits is smaller than the sticker.

On $45,000 of wages, the employer taxes run roughly $5,000 including state unemployment. A dependent care FSA plus the credit typically claws back $1,500 to $3,000 of that for a working family. The real cost of compliance is often near the price of a single month of childcare, for permanent immunity from the entire failure list above.

4. Some careers cannot carry the risk at all.

Unpaid nanny taxes have derailed cabinet nominations often enough that the pattern has a nickname. If your career involves security clearances, professional licensure, public office, or executive background checks, household payroll compliance is not a tax decision, it is a career decision.