How do I fix a Form W-2 with an incorrect Employer’s EIN and Incorrect Tax Year?

To correct the employer's TIN, Address, Employment Code, and Tax Year, you may need to contact the SSA. The Employer Services Liaison Officers (ESLOs) of the SSA can assist with all processes and applications. Visit https://www.ssa.gov/employer/wage_reporting_specialists.htm to know more details.