Check the Social Security card for the exact number
Compare the number with official records such as tax forms or pay stubs
Verify the number through the Social Security Administration if you are authorized to do so
Use an employer’s E-Verify or payroll records if applicable
Review prior documents that list the SSN, such as W-2s, 1099s, or bank records
Ask the person to provide a copy of their Social Security card
Confirm the number against government-issued identification records when permitted
Contact the Social Security Administration directly for verification if you have legal authority
Use an authorized identity verification service if available
Check for consistency across all submitted documents and records