Nanny Payroll Taxes Calculator

Check payroll tax inputs

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Wage starting point:

Choose how the employee's 2026 cash wages should be estimated.

Annual cash wages:

Enter total 2026 cash wages for this household employee.

$ / year

Pay frequency:

Choose the paycheck cadence used for the nanny payroll run.

Custom paychecks per year:

Enter how many paychecks will be issued during the year.

checks

Worker tax category:

Most nanny arrangements use unrelated adult household employee.

Employee FICA handling:

Choose whether employee Social Security and Medicare reduce the paycheck or are paid by the household.

Optional federal income tax withholding:

Enter an agreed flat federal income tax amount per paycheck, or leave 0.

$ / check

FUTA credit treatment:

Use full credit only when state unemployment contributions support it.

Custom net FUTA rate:

Use a percentage such as 0.6 for a full-credit estimate.

State unemployment estimate:

Enter a rate for budgeting, or set 0 when you want federal-only results.

State taxable wage base:

Use the current state wage base for household employment, if known.

$ wage base

Highest 2026 quarter wages:

Use 0 for auto-estimate, or enter the highest quarter's actual cash wages.

Prior same-year wages:

Use 0 when the wage plan already represents the full 2026 cash wage amount.

Rounding:

Use cents for payroll ledgers or whole dollars for early budgeting.

Payroll note label:

Add a household, employee, or planning note without changing the tax estimate.

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Tax line	Taxable basis	Employee withheld	Employer outlay	Copy
{{ row.line }}	{{ row.basis }}	{{ row.employee }}	{{ row.employer }}

Paycheck line	Per check	Annualized	Copy
{{ row.line }}	{{ row.perCheck }}	{{ row.annual }}

Enter valid payroll tax inputs to build the tax reserve mix.

Checkpoint	Applies?	Why it matters	Copy
{{ row.checkpoint }}	{{ row.applies }}	{{ row.note }}

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A nanny paid directly by a household is usually more than a childcare expense line. Once the arrangement becomes household employment, the family has to think about gross cash wages, employee withholding, employer payroll taxes, unemployment rules, and year-end reporting. The hourly rate still matters, but the tax answer comes from annual cash wages, worker category, pay timing, and the federal and state rules that sit around the paycheck.

Cash wages are the base for the federal household-employer calculations. They generally include money paid by cash, check, transfer, money order, or similar payment before withholding. Noncash benefits, meals, lodging, reimbursements, overtime treatment, state paid leave, disability programs, workers compensation, and local rules can change the broader employment file, so a payroll tax estimate should be treated as a planning worksheet rather than a complete compliance decision.

Nanny payroll tax questions and values that change the answer
Question	What changes the answer	Common mistake
Do Social Security and Medicare apply?	Total 2026 cash wages and whether the worker category is FICA eligible.	Using net pay instead of cash wages before withholding.
Does FUTA apply?	Highest quarter cash wages, worker exclusions, and the $7,000 FUTA wage base.	Withholding FUTA from the nanny even though it is an employer tax.
What should the household reserve?	Employer FICA, FUTA, state unemployment, employee withholding, and any employee FICA funded by the household.	Budgeting only the gross wage and forgetting tax cash flow.
Is the federal estimate enough?	State unemployment, disability insurance, paid leave, local taxes, registration, and workers compensation rules.	Assuming federal payroll math replaces state-specific checks.

For 2026, the main federal household-employee FICA threshold is $3,000 of cash wages for an eligible worker. Social Security uses a $184,500 wage base and Medicare has no wage base cap. FUTA uses a different test: household employee cash wages reaching the quarter trigger and then the first $7,000 of FUTA wages, with family-worker exclusions that do not exactly match every FICA case.

Household payroll flow from 2026 cash wages to FICA and FUTA checks, paycheck withholding, and employer reserve.

Worker category is not a side detail. Wages paid to a spouse, a child under 21, a parent without the specific childcare exception, or a worker under 18 whose main occupation is not household work can follow a different tax path. Those categories can change whether FICA or FUTA appears, and they can change whether the paycheck estimate is mainly a wage-budget question or a tax-remittance question.

State payroll duties are the largest uncertainty for a simple calculator. A household may need a state unemployment account, a state-assigned tax rate, a state wage base, disability or paid-leave withholding, workers compensation coverage, and local filings. Federal household payroll math gives a useful reserve baseline, but it should be reconciled with the state agency, payroll service, or tax professional handling the actual filing.

How to Use This Tool:

Start with the wage plan, then review the federal and state assumptions that determine the paycheck and reserve.

Choose Wage starting point. Use Hourly schedule when you know the hourly wage, paid hours per week, and paid weeks in 2026; use Known annual cash wages when the full-year cash wage amount is already set.
Set Pay frequency. The selected cadence converts annual wages into gross per check, estimated net pay, and reserve per check. If you choose custom checks, enter a positive paycheck count.
Select Worker tax category. Use Unrelated adult household employee for the common nanny arrangement unless one of the family or under-18 categories applies.
Choose Employee FICA handling. Withholding employee FICA lowers the paycheck. Employer-paid employee FICA keeps the paycheck higher but increases the household outlay and can affect income-tax wage reporting.
Enter Optional federal income tax withholding only when the nanny asks for withholding and the household agrees. The amount is entered per paycheck.
Set FUTA credit treatment, State unemployment estimate, and State taxable wage base from a payroll notice, state account, payroll service, or tax preparer.
Use Advanced for highest quarter wages, prior same-year wages, rounding, and a note label. If the summary says Needs valid wages or an alert appears, fix the listed wage, hours, weeks, paycheck count, or rate field before using the result tabs.
Review Tax Breakdown, Paycheck Estimate, Tax Reserve Mix, and Filing Checklist before saving the JSON or copying values into a payroll budget.

Interpreting Results:

The summary's employer outlay is the household-funded tax amount on top of planned wages. The annual remittance reserve is broader because it includes employer payroll taxes, employee taxes withheld from pay, and any employee FICA share the household chooses to fund.

Tax Breakdown is the main audit view. It separates taxable basis, employee withholding, and employer outlay for Social Security, Medicare, Additional Medicare, FUTA, state unemployment, and optional federal income tax withholding. If a line says Not triggered, confirm the wage amount, highest quarter wage estimate, and worker category before treating the absence of tax as final.

Paycheck Estimate translates the annual plan into gross cash wages, estimated net paycheck, tax remittance reserve, and all-in annual wage plus employer outlay. Tax Reserve Mix shows the reserve components, while Filing Checklist lists setup, withholding, state-review, W-2/W-3, Schedule H, and recordkeeping checkpoints.

A clean federal estimate can still be incomplete. Verify state unemployment rate, state wage base, workers compensation, disability insurance, paid leave, local taxes, and household-employer registration before relying on the reserve for payroll funding.

Technical Details:

Household payroll tax math starts with total 2026 cash wages for one worker. Planned wages come from the hourly schedule or the annual cash wage entry, and prior same-year wages are added when the household already paid the worker earlier in the same tax year. Federal thresholds and wage bases apply to the combined cash wages, not only to the unpaid remainder of the year.

FICA is split between Social Security and Medicare. Social Security is capped by the annual wage base, while Medicare has no annual wage cap. Additional Medicare Tax is employee-only and begins after Medicare wages exceed the federal high-wage threshold. FUTA has its own quarter trigger and uses only the first $7,000 of FUTA wages when the selected worker category is eligible.

Formula Core:

The core formulas calculate annual amounts first and then divide by the selected number of paychecks for per-check values.

\begin{array}{lcl} W_{total} & = & W_{planned} + W_{prior} \\ T_{ss share} & = & 0.062 \times \min (W_{total}, 184500) \\ T_{med share} & = & 0.0145 \times W_{total} \\ T_{addl med} & = & 0.009 \times \max (0, W_{total} - 200000) \\ T_{futa} & = & R_{futa} \times \min (W_{total}, 7000) \end{array}

The Social Security and Medicare formulas apply only when the selected worker category is FICA eligible and total 2026 cash wages are at least $3,000. FUTA applies only when the selected category is FUTA eligible and the highest quarter cash-wage estimate reaches the quarter trigger. State unemployment uses the entered rate and the entered state wage base.

Modeled 2026 nanny payroll tax thresholds and boundaries
Item	Modeled 2026 rule	Boundary
FICA trigger	Eligible household employee reaches at least $3,000 of cash wages.	All eligible 2026 cash wages become Social Security and Medicare wages once triggered.
Social Security	6.2% employee share and 6.2% employer share.	Taxable wages are capped at $184,500.
Medicare	1.45% employee share and 1.45% employer share.	No annual wage base cap.
Additional Medicare	0.9% employee-only withholding.	Applies to Medicare wages above $200,000.
FUTA	Effective rate from full credit, no credit, or custom net rate.	Triggered by highest quarter wages and capped at the first $7,000 of FUTA wages.
State unemployment	Entered state rate multiplied by cash wages up to the entered state wage base.	The estimate does not look up state-assigned values.

Worker category effect on modeled FICA and FUTA eligibility
Worker category	FICA path	FUTA path
Unrelated adult household employee	Eligible when the wage threshold is met.	Eligible when the quarter trigger is met.
Spouse or child under 21	Excluded in the modeled federal rules.	Excluded in the modeled federal rules.
Parent without childcare exception	Excluded unless the special parent childcare exception applies.	Excluded in the modeled federal rules.
Parent with FICA childcare exception	Eligible for FICA when the threshold is met.	Excluded in the modeled federal rules.
Worker under 18, not principal occupation	Excluded from FICA in the modeled rules.	Eligible when the quarter trigger is met.
Worker under 18, household work is principal occupation	Eligible when the wage threshold is met.	Eligible when the quarter trigger is met.

For a $52,000 unrelated adult nanny wage plan with employee FICA withheld, the Social Security wage base does not cap the wages. Each Social Security share is $3,224.00 and each Medicare share is $754.00. With the full-credit FUTA estimate, FUTA is $42.00 on the first $7,000. A 2.7% state unemployment rate on a $7,000 state wage base adds $189.00, producing a $4,209.00 employer outlay and an $8,187.00 annual remittance reserve when employee FICA is withheld.

Rounding affects displayed values, copied tables, and exported reports. The annual calculation is built from the entered wage, rate, threshold, and pay-period values, then shown to cents or whole dollars depending on the rounding choice.

Accuracy and Privacy Notes:

This is a 2026 household payroll planning worksheet, not tax advice and not a filing service.

It does not register an employer, file Schedule H, prepare Forms W-2/W-3, or determine every state payroll duty.
State unemployment, disability insurance, paid leave, local taxes, workers compensation, and registration rules must be verified outside the estimate.
Employer-paid employee FICA can affect income-tax wage reporting, and the estimate does not gross up federal income tax withholding.
The calculation shown on the page is handled in the browser. Copied, downloaded, or shared outputs can contain the wage and note values entered.

Worked Examples:

Weekly full-year nanny plan. A nanny paid $25 per hour for 40 paid hours across 52 weeks has $52,000 of planned cash wages. With weekly pay, an unrelated adult worker category, employee FICA withheld, a full-credit FUTA estimate, and a 2.7% state unemployment rate on a $7,000 wage base, Paycheck Estimate shows a $1,000.00 gross check and an estimated $923.50 net paycheck before any optional federal income tax withholding. Tax Breakdown shows $4,209.00 of employer outlay and $3,978.00 of employee withholding.

Employer pays the employee FICA share. Using the same $52,000 wage plan, changing Employee FICA handling to employer-paid keeps the net paycheck at $1,000.00 before optional income tax withholding. The employer outlay rises to $8,187.00 because the household funds both the employer share and the employee FICA share.

Below the federal wage triggers. A $2,950 annual cash-wage estimate for an unrelated adult does not meet the 2026 FICA threshold. If the highest quarter estimate is below $1,000 and state unemployment is set to 0 for a federal-only check, the badges show FICA not triggered and FUTA not triggered. State registration and wage-hour rules may still matter.

Validation recovery. If Known annual cash wages is selected with $0 entered, the summary stays at Needs valid wages and the alert asks for annual cash wages above zero. Entering a positive wage amount clears the error and rebuilds the result tabs.

FAQ:

Does the nanny pay FUTA?

No. FUTA is an employer tax and should not be withheld from the nanny's wages. Check the Tax Breakdown employer outlay column for FUTA.

Why are Social Security and Medicare missing from the result?

The selected worker category may be excluded, or total 2026 cash wages may be below $3,000. Review Worker tax category, Annual cash wages, and Prior same-year wages.

Should I enter federal income tax withholding?

Enter it only when the employee asks for withholding and the household agrees. The estimate treats it as a flat amount per paycheck and includes it in the remittance reserve.

Does the estimate include every state payroll cost?

No. It uses the state unemployment rate and wage base you enter. Disability insurance, paid leave, local taxes, workers compensation, and registration rules must be checked separately.

What should I do when the page says Needs valid wages?

Fix the alert message first. Common causes are $0 annual wages, $0 hourly wage, $0 paid hours, $0 paid weeks, or an invalid custom paycheck count.

Are inputs sent to a payroll provider?

No payroll provider is used for the calculation shown on the page. Copied summaries, downloads, and shared outputs can still include the wage and note values you entered.

Glossary:

Cash wages: Wages paid by cash, check, money order, transfer, or similar payment before withholding.
FICA: Federal Insurance Contributions Act taxes for Social Security and Medicare, with employee and employer shares.
FUTA: Federal Unemployment Tax Act tax, paid by the employer when the household wage trigger and worker rules apply.
State unemployment wage base: The annual wage cap used with the entered state unemployment rate.
Additional Medicare Tax: Employee-only Medicare withholding that starts above the federal high-wage threshold.
Remittance reserve: The amount set aside for employer payroll taxes, employee taxes withheld from pay, and any employee FICA paid by the household.
Schedule H: The federal household employment tax schedule commonly attached to the household employer's individual income tax return.

References:

Publication 926 (2026), Household Employer's Tax Guide, Internal Revenue Service, 2026.
Topic No. 756, Employment Taxes for Household Employees, Internal Revenue Service.
Contribution and Benefit Base, Social Security Administration.
Fact Sheet #79D, Hours Worked Applicable to Domestic Service Employment Under the FLSA, U.S. Department of Labor, April 2016.

Nanny Payroll Taxes Calculator

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Check payroll inputs

How to Use This Tool:

Interpreting Results:

Technical Details:

Formula Core:

Accuracy and Privacy Notes:

Worked Examples:

FAQ:

Glossary:

References:

Nanny Payroll Taxes Calculator

{{ summaryHeading }}

Check payroll inputs

Introduction:

How to Use This Tool:

Interpreting Results:

Technical Details:

Formula Core:

Accuracy and Privacy Notes:

Worked Examples:

FAQ:

Glossary:

References: