Nanny Background Check: What to Verify & How

Running a background check on a nanny candidate is not optional. It is a basic due diligence step that protects your children, your family, and your home. Yet roughly one in three families who hire independently either skip the background check entirely or rely on the candidate's self-reported history, which is an inadequate substitute for verified records.

This guide covers every component of a thorough nanny background check, explains how to navigate the legal requirements, and helps you choose between screening services. It is part of our broader nanny hiring guide, which covers the full process from search to onboarding.

What a Nanny Background Check Should Include

A thorough screening covers multiple verification categories. Here is what each component checks and why it matters.

1. Criminal History Search

This is the foundation of any background check. A proper criminal history search includes:

• National criminal database search: Scans aggregated records from courts, corrections departments, and law enforcement agencies across all 50 states. Fast but not comprehensive since not all jurisdictions report to national databases.
• County-level criminal record search: Checks records at the county courthouse level in every county where the candidate has lived. More thorough than national databases and catches records that may not appear in aggregated searches.
• Federal criminal search: Checks federal court records for offenses like fraud, identity theft, and drug trafficking.

The national database search is a good starting point but should never be your only criminal check. Approximately 30% of county-level records do not appear in national databases due to reporting delays or non-participation by certain jurisdictions.

2. Sex Offender Registry Search

This is an absolute non-negotiable. A national sex offender registry search checks the candidate against registries in all 50 states, plus Washington D.C. and U.S. territories. This search is typically included in standard background check packages and returns results within 24 hours.

3. Identity Verification (SSN Trace)

A Social Security number trace verifies the candidate's identity and reveals every address they have been associated with. This is critical because it identifies which counties and states need to be searched for criminal records. It also flags potential identity fraud if the SSN does not match the candidate's name or date of birth.

4. Motor Vehicle Records

If your nanny will be driving your children, a driving record check is essential. This reveals accidents, moving violations, DUIs, license suspensions, and the current status of the candidate's driver's license. Request records from every state where the candidate has held a license in the past seven years.

5. Employment Verification

Employment verification confirms that the candidate actually worked where they claim they did, for the dates they claim. This can reveal gaps in employment history, fabricated positions, or discrepancies that warrant further investigation. For nanny positions, this typically involves contacting previous families, which overlaps with reference checks.

6. Optional: Credit Check

A credit check is most relevant if your nanny will have access to household finances, credit cards, or handle cash purchases. It reveals financial distress signals like collections, bankruptcies, or excessive debt. Note that some states restrict the use of credit checks in employment decisions, so verify your state's laws before requesting one.

Background Check Components at a Glance

Legal Requirements You Must Follow

Background checks on potential employees are governed by federal and state laws. Here are the key requirements:

Fair Credit Reporting Act (FCRA)

If you use a third-party screening service (which most families do), you must:

1. Provide written disclosure to the candidate that you intend to run a background check
2. Obtain written authorization from the candidate before the check is initiated
3. Follow adverse action procedures if you decide not to hire based on the results: provide the candidate with a copy of the report and a summary of their rights before making a final decision

These are not optional courtesies. Violations of the FCRA can result in statutory damages and attorney's fees. Reputable screening services provide FCRA-compliant consent forms as part of their standard process. For a deeper look at state-specific regulations, see our guide to nanny background check laws.

Ban-the-Box and Fair Chance Laws

Several states and municipalities have enacted laws that restrict when in the hiring process you can inquire about criminal history. While most of these laws apply to employers with a minimum number of employees (often 5 or more), some jurisdictions extend them to household employers. Check your local regulations to ensure compliance.

Choosing a Background Check Provider

Several services specialize in background checks for household employees. Key factors to evaluate:

• FCRA compliance: The provider should be a Consumer Reporting Agency that follows all FCRA requirements, including consent forms and adverse action procedures
• County-level searches: Avoid services that only search national databases. You need county-level coverage for thorough results
• Turnaround time: Most services complete comprehensive checks within 5 to 10 business days
• Clear reporting: Results should be presented in a clear, easy-to-understand format with guidance on how to interpret findings
• Customer support: You should be able to speak with someone if results require interpretation or clarification

What to Do When a Background Check Returns Results

Not every finding is disqualifying. Here is a framework for evaluating results:

Automatic Disqualifiers

• Sex offender registry match
• Violent felony convictions
• Child abuse or neglect findings
• Identity fraud (SSN does not match, fabricated identity information)

Serious Concerns Requiring Discussion

• DUI convictions (especially if driving is required)
• Drug-related offenses
• Theft or fraud convictions
• Significant discrepancies between reported and actual employment history

Context-Dependent Findings

• Minor traffic violations (generally not disqualifying)
• Old misdemeanors unrelated to childcare (consider timing, circumstances, and pattern)
• Credit issues (relevant only if financial access is part of the role)

If a background check reveals concerning but not automatically disqualifying information, consider having a direct conversation with the candidate. Give them the opportunity to explain the circumstances. Their response, both the content and the manner, provides additional data for your decision.

Beyond the Formal Background Check

A background check is one layer of screening. It should complement, not replace, other verification steps:

• Reference checks: Direct conversations with previous employers reveal performance, reliability, and interpersonal dynamics that no database captures. See our complete reference check guide.
• Social media review: A brief review of publicly available social media profiles can provide context about the candidate's judgment, interests, and public behavior.
• Certification verification: Confirm that CPR, First Aid, and other claimed certifications are current and valid by checking with the issuing organization.
• Health screening: Some families require TB tests, drug screening, or general health clearance. See our guide to health checks and drug testing for nannies.

Do I Need a Background Check for a Babysitter?

Yes, always. Even if a babysitter is only watching your children for a few hours on a Saturday evening, they deserve the same baseline safety screening as any caregiver you trust with your family. The reality is that occasional access to your home and children carries the same risks as full-time access when it comes to criminal history, sex offender registry status, and identity verification.

For babysitters, the screening can be streamlined compared to a full nanny background check. At minimum, run a national criminal database search and a sex offender registry check, which together cost $30-$50 and return results within 24-48 hours. If the babysitter will be driving your children, add a driving record check. You can skip the more extensive components like employment verification and credit history that are standard for long-term nanny hires, unless the babysitter will have access to financial information or be working in your home regularly.

Many families skip background checks for babysitters because the care feels informal, but this is a false economy. A basic screening costs less than one evening of babysitting and provides peace of mind that no amount of personal referrals can fully replace. Even a sitter recommended by a close friend should go through at minimum the national database and sex offender checks.

For a complete walkthrough of what to check and how, including babysitter-specific interview questions, see our babysitter background check and interview questions guide.