Introduction: What Is IRS Form W-10?

IRS Form W-10, officially titled Dependent Care Provider’s Identification and Certification, is an administrative tax document published by the Internal Revenue Service (IRS). Governed by the Department of the Treasury, this form is used by working parents and caregivers to obtain the official tax identification details of their childcare or dependent care providers.

If you pay a babysitter, daycare center, summer day camp, or in-home nurse so that you (and your spouse, if married) can work or look for work, you may be eligible to claim the Child and Dependent Care Credit. To claim this credit on your federal income tax return, federal law requires you to report the care provider’s legal name, physical address, and Taxpayer Identification Number (TIN).

Form W-10 is not mailed to the IRS. Instead, you give the form to your care provider to complete and sign. Once returned, you keep Form W-10 in your personal tax records to substantiate the numbers you report on Form 2441 when filing your annual Form 1040.

Purpose of the Form: Why Does Form W-10 Exist?

Child and dependent care expenses represent a significant financial burden for working families. To provide relief, the tax code offers the Child and Dependent Care Credit (worth up to thousands of dollars in direct tax savings) and allows tax-free reimbursement through employer-sponsored Dependent Care Flexible Spending Accounts (FSAs).

To prevent fraudulent claims and ensure that caregivers report their fee income on their own tax returns, Internal Revenue Code (IRC) Sections 21(e)(9) and 129(e)(9) require taxpayers to disclose the identity of their care providers. Without a verified Social Security Number (SSN) or Employer Identification Number (EIN), the IRS will automatically disallow the tax credit.

Form W-10 solves this problem by providing a standardized, official request form. It gives parents an official IRS document to present to informal or reluctant caregivers, and it acts as the taxpayer’s legal proof of “due diligence” in attempting to secure the required tax information.

Who Needs to Use Form W-10?

Form W-10 is used by taxpayers who pay for dependent care and need official provider information:

Parents Claiming the Child and Dependent Care Credit: Taxpayers who pay an individual or facility to care for a qualifying child under age 13 so they can work or attend school full-time.
Caregivers of Adult Dependents: Taxpayers who pay for the care of a physically or mentally incapacitated spouse or dependent who lives with them.
Employees with Dependent Care FSAs: Workers who participate in a pretax Dependent Care FSA through their employer and must submit provider tax numbers to justify tax-free reimbursements.
Childcare and Adult Care Providers: Daycare operators, preschools, after-school programs, nannies, and babysitters who must complete Part I to certify their TIN under penalties of perjury.

Who Is Exempt or Not Required to Complete This Form?

In many everyday childcare situations, completing Form W-10 is unnecessary:

Tax-Exempt Care Providers: If your child attends a childcare center operated by a tax-exempt organization (such as a church daycare, public school preschool, or YMCA), you do not need Form W-10. Simply write “Tax-Exempt” in the identification space on Form 2441.
Providers Supplying Alternative Tax Documentation: You do not need Form W-10 if the provider gives you another official document displaying their legal name, address, and TIN (such as a signed invoice, monthly tuition statement, or Form W-9).
Parents Not Claiming Tax Benefits: Families that do not claim the Child and Dependent Care Credit and do not participate in a pretax Dependent Care FSA do not need to request provider information.
Ineligible Family Caregivers: Payments made to your spouse, the child’s other parent, or your own dependent child under age 19 do not qualify for the credit, so Form W-10 is not used.

When to Complete Form W-10: Timing and Record Retention

Form W-10 operates on an event-driven schedule tied to the childcare calendar:

Request Early in the Year: The best practice is to give Form W-10 to your caregiver when care begins (such as during daycare enrollment or when hiring a new babysitter), rather than waiting until tax season.
Avoid Year-End Scrambling: Waiting until the following January or April can create problems if a nanny has moved, a seasonal summer camp has closed, or an in-home provider refuses to cooperate.
Three-Year Retention Rule: Once completed, retain the signed Form W-10 in your personal tax files for at least three years from the due date of the tax return claiming the credit.

Where and How to File Form W-10

Form W-10 is handled strictly between the taxpayer and the service provider:

Deliver to the Care Provider: Give Form W-10 directly to your daycare center, camp director, or in-home caregiver. They complete Part I and return the signed form to you.

Do Not Mail to the IRS: Never mail Form W-10 to the Internal Revenue Service with your annual tax return. Instead, copy the provider’s name, address, and TIN onto Form 2441 (Child and Dependent Care Expenses) attached to your Form 1040.

Special IRS Audit Verification: If the IRS later audits your tax return or requests proof that you exercised due diligence in attempting to identify your care provider, you mail a copy of your completed Form W-10 directly to the official IRS address as per instructions in your audit letter.

Step-by-Step Instructions to Fill Out Form W-10

Form W-10 is a simple, one-page document divided into two primary parts: Part I for the care provider, and Part II for the parent or taxpayer requesting the information.

Section	Responsible Party	Required Information & Operational Rule
Part I: Line 1	Care Provider	Enter the legal name of the individual or business entity providing dependent care services.
Part I: Line 2	Care Provider	Enter the provider’s verified nine-digit Taxpayer Identification Number (SSN for individuals; EIN for businesses).
Part I: Line 3	Care Provider	Enter the provider’s permanent physical or business street address, city, state, and ZIP code.
Part I: Certification	Care Provider	The provider signs and dates under penalties of perjury, certifying their TIN and address are correct.
Part II	Taxpayer / Parent	The parent fills in their full legal name, home address, and telephone number before giving the form to the provider.

Detailed Walkthrough of Important Sections

Part I: Provider Legal Name and Tax ID (Lines 1 & 2). If your caregiver is an individual (such as a private babysitter, nanny, or relative), they must provide their full legal name and personal Social Security Number (SSN). If the care is provided by a licensed daycare center, partnership, or incorporated preschool, the business enters its commercial entity name and federal Employer Identification Number (EIN).

Part I: Address Requirements (Line 3). The provider must enter their physical residential or business address. A post office box is not acceptable unless the provider has no physical street address.

Part II: Taxpayer Request Information. The parent or guardian should complete Part II before handing the form to the caregiver. This identifies you as the paying client and establishes that the request is made for federal tax purposes.

Required Documents and Information Needed Before Filling

Before completing Form W-10, assemble the following basic details:

Provider Business or Personal Information: The exact legal name and operational address of the care facility or individual caregiver.
Taxpayer Contact Details: The parent’s current residential address and contact telephone number.
Payment Summaries: Year-end receipts, canceled checks, or bank statements showing total childcare payments made during the calendar year.
Household Employment Records (if applicable): If you hire an in-home nanny whom you treat as a household employee, maintain your state and federal payroll tax records (Form 1040, Schedule H).

Common Mistakes to Avoid

Errors involving Form W-10 can jeopardize your childcare tax credits. Watch out for these frequent mistakes:

Mailing Form W-10 to the IRS: The most common error is attaching Form W-10 to Form 1040. Form W-10 must be kept in your personal files; only Form 2441 is submitted to the IRS.
Waiting Until the Last Minute: Delaying your request until April leaves you vulnerable if an informal caregiver refuses to share their SSN or has moved away.
Failing to Document “Due Diligence”: If a caregiver refuses to provide their tax ID, you must be able to prove you tried. Keep a copy of your written Form W-10 request and receipts to show the IRS you made a good-faith effort.
Claiming Ineligible Overnight Camps: Summer day camps qualify for the dependent care credit, but overnight sleepaway camps do not qualify under federal law.
Confusing Nannies with Independent Contractors: In-home nannies who work in your house under your direction are legally household employees, not independent contractors. In addition to collecting a W-10, you may be required to pay household employment taxes using Schedule H.

Penalties for Non-Filing or Errors

Failing to handle Form W-10 properly carries direct statutory penalties and tax consequences under the Internal Revenue Code:

Provider Penalty for Refusing to Furnish TIN (IRC Section 6723): Under federal law, any care provider who is paid to provide dependent care and fails or refuses to furnish their correct Taxpayer Identification Number upon request without reasonable cause is subject to a $50 civil penalty assessed by the IRS for each failure.
Disallowance of the Child and Dependent Care Credit: If you claim the credit on Form 2441 without a valid provider TIN and cannot prove you exercised due diligence, the IRS will disallow the tax credit, claw back your tax refund, and assess back taxes with compounding interest.
Reclassification of FSA Distributions: If you received tax-free dependent care FSA funds from your employer but cannot supply a verified provider TIN on Form 2441, the IRS will reclassify those funds as taxable income, increasing your tax liability.

Related Forms and Publications

Form W-10 operates alongside several key individual income tax forms and publications:

Form 2441: Child and Dependent Care Expenses (the mandatory schedule filed with Form 1040 where W-10 information is reported).
Form 1040: U.S. Individual Income Tax Return.
Schedule H (Form 1040): Household Employment Taxes (filed by parents who employ in-home nannies).
Form W-9: Request for Taxpayer Identification Number and Certification (an acceptable commercial substitute for Form W-10).
Publication 503: Child and Dependent Care Expenses (the comprehensive IRS guide for parents and providers).
Publication 926: Household Employer’s Tax Guide.

Frequently Asked Questions (FAQs)

Do I have to mail Form W-10 to the IRS when I file my tax return?

No. You do not mail Form W-10 to the IRS. You transfer the provider’s name, address, and TIN onto Form 2441, which you attach to your Form 1040. You keep the signed Form W-10 in your personal tax records.

What should I do if my babysitter refuses to give me their Social Security Number?

If a provider refuses to provide their TIN, you can still claim the credit if you can prove you exercised “due diligence.” Complete Part II of Form W-10 and give it to the provider. If they refuse, keep a written log of your request, report the provider’s name and address on Form 2441, leave the TIN box blank, and attach an explanatory statement explaining that the provider refused to furnish the number.

Can I use a daycare center’s invoice instead of Form W-10?

Yes. If your daycare center or preschool provides an official receipt, invoice, or annual tax summary that clearly lists their legal business name, street address, and federal Employer Identification Number (EIN), that document satisfies IRS requirements, and a separate Form W-10 is not needed.

Does a church-run daycare have to fill out Form W-10?

If the daycare is an integral part of a tax-exempt religious organization, they are not required to furnish an EIN. On your Form 2441, you simply list the church’s name and address and write “Tax-Exempt” in the space for the identification number.

Does signing Form W-10 mean my babysitter will have to pay taxes?

Yes. Providing child care for pay is considered taxable income under federal law. Form W-10 ensures that income earned by care providers is reported accurately, just like any other trade or profession.

Can grandparents or relatives fill out Form W-10?

Yes. You can claim care expenses paid to relatives (such as grandparents, aunts, or uncles) provided they are not your spouse, the parent of the child, or your dependent under age 19. The relative must complete Form W-10 and report the income on their personal tax return.

Conclusion: Key Takeaways

IRS Form W-10, Dependent Care Provider’s Identification and Certification, is a simple document that protects valuable family tax savings. By securing your care provider’s legal name, address, and Taxpayer Identification Number early in the year, you ensure that you can claim the Child and Dependent Care Credit without IRS delays.

Remember that Form W-10 stays in your personal files to serve as your audit shield, while the data is reported on Form 2441. Requesting the form when you first enroll your child or hire a caregiver guarantees that your tax filing proceeds smoothly, helping your family keep more of your hard-earned money on Tax Day.

IRS Form W-10 Guide: Dependent Care Provider Identification