8 APA's Top Payroll Questions & Answers for 2019 Q. SSA recently released a call for comments regarding consent-based SSN verification. What is CBSV and how does it differ from SSNVS? A. The Social Security Number Verification Service (SSNVS; https://www. ssa.gov/employer/ssnv.htm), which is part of BSO, is specifically for the purpose of establishing a valid name/SSN combination for filing Forms W-2. The free service was designed for employers, and it cannot be used for any other purpose. The consent-based SSN verification system (CBSV) is also on BSO. It is designed for non-SSA-related verifications, and there is a setup process and fees associated with CBSV. The consent-based aspect is important because it requires the SSN holder to sign a consent form the CBSV user needs to retain in its records. This service is heavily used by banks, mortgage companies, and insurance companies for verification purposes for their normal businesses. 69 Depositing and Reporting Withheld Taxes SSNVS vs. CBSV (SSA)https://www.ssa.gov/employer/ssnv.htm https://www.ssa.gov/employer/ssnv.htm