A TIN Database Verification answers the question "Does the US IRS database corroborate provided user data?".

TIN Database Verification Checks

Verification Check Slug	Check Name	Check Type	Description
`database_tin_deceased_detection`	Deceased Detection	Fraud	Detect if the person is deceased.
`database_tin_disallowed_type_detection`	Disallowed Type Detection	Fraud	Detect if the TIN type (e.g. SSN, EIN, ITIN) submitted is not allowed based on template requirements.
`database_tin_invalid_format_detection`	Face Invalid Format Detection	Fraud	Detect if the TIN format is invalid.
`database_tin_service_available_detection`	Service Available Detection	User action required	Detect if the IRS is unavailable.
`database_tin_name_comparison`	Name comparison	Fraud	Detect if the name matches the TIN.