# SSN Check ### SSN Verification Overview An SSN Check is a **US identity verification** service for **Social Security Number (SSN) verification**. It validates the SSN against authoritative records and confirms it matches the customer’s submitted details. Use it to reduce onboarding risk and strengthen **KYC**, **Customer Identification Program (CIP)**, and identity fraud controls for US customers. :flag\_us: This service supports **US Social Security Number verification** only. {% hint style="info" %} [Learn about the SSN Check API (Social Security Number verification).](/documentation/api-reference/check-types/ssn-check.md) {% endhint %} ### Common use cases This service is commonly used in the following scenarios: * **US customer onboarding**: Verify US customers during account opening and registration. * **Fraud prevention**: Detect identity discrepancies and potential synthetic identities. * **US KYC and CIP compliance**: Support Customer Identification Program requirements for regulated businesses. ### Analysis performed The SSN Check confirms the **validity of the SSN** and the **authenticity of the customer details** provided. **Detailed verification checks**
AnalysisVerifications Performed
Data Verification

Verifies the following customer details against authoritative US records:

  1. First name
  2. Last name
  3. SSN
Database AnalysisConfirms that the SSN has been legitimately issued, is currently active, and is not associated with a deceased individual based on mortality data checks.
### Sample result The example below shows a representative SSN Check result for SSN verification and customer data validation outcomes. Use it to see how verified identity details, SSN status, and verification findings may appear in an SSN Check report.
{% hint style="info" %} This example is illustrative. Exact fields, values, and layout may vary by data source, workflow, configuration, and result. {% endhint %} ### Check duration An SSN Check takes an average of **1 second** to complete. ### Frequently asked questions
When should I use SSN Check? Use SSN Check when you need to verify a US customer's Social Security Number against authoritative records. It fits account opening, US KYC onboarding, CIP checks, and fraud reduction workflows.
What customer data does SSN Check verify? SSN Check verifies: * First name * Last name * Social Security Number (SSN) It also checks whether the SSN has been legitimately issued, is active, and is not linked to a deceased individual.
Is SSN Check enough for KYC or CIP? SSN Check is strong for US identity data validation. For higher-assurance onboarding, combine it with document, biometric, address, or AML checks based on your risk model and regulatory requirements.
Does SSN Check replace document verification? No. Use [Document Check](/documentation/product-guides/identity-verification/document-check.md) when you need government-issued ID verification and document fraud analysis.
Does SSN Check verify date of birth or address? No. SSN Check verifies the customer's first name, last name, and Social Security Number. If you also need date of birth or address verification, use [Multi-Bureau Check](/documentation/product-guides/identity-verification/multi-bureau-check.md) or [eID Check](/documentation/product-guides/identity-verification/eid-check.md), depending on your workflow.
What is the difference between SSN Check and Multi-Bureau Check? Use **SSN Check** when you need **US-specific Social Security Number verification**. Use [Multi-Bureau Check](/documentation/product-guides/identity-verification/multi-bureau-check.md) when you need broader identity or address verification across multiple countries and data sources. Many US onboarding flows use both: * **SSN Check** for direct SSN validation. * **Multi-Bureau Check** for broader identity and address corroboration.
### Related checks You’ll typically run SSN Check alongside other identity verification methods, such as: * [Document Check](/documentation/product-guides/identity-verification/document-check.md) for ID document verification. * [Identity Check](/documentation/product-guides/biometric-and-liveness-verification/identity-check.md) for biometric liveness verification. * [Proof of Address Check](/documentation/product-guides/kyc-automation-services/proof-of-address-check.md) to extract and verify address evidence from documents. * [AML Screening Check](/documentation/product-guides/watchlist-pep-and-adverse-media/aml-screening-check.md) to screen customers against sanctions, PEP, and adverse media. ### Related topics Use these to run SSN Check inside a broader KYC flow: * [Workflows](/documentation/product-guides/compliance-studio/workflows.md) to orchestrate checks into a single customer journey. * [Policies](/documentation/product-guides/compliance-studio/policies.md) to apply consistent decision rules across journeys. * [Advanced Case Management](/documentation/product-guides/due-diligence-tools/advanced-case-management.md) to manage exceptions, tasks, and reviewer outcomes. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.complycube.com/documentation/product-guides/identity-verification/ssn-check.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.