My former employer is requesting that I fill out a W-9. I was a full time employee for a small business and taxes were taken from my checks. Is this necessary?

[kamden02]

I worked for a doctors office I was their only employee

[xmasbaby0]

Did you give them a W-4 when you began your employment there?  Do your check stubs show federal/state tax withheld?  Social Security?  Medicare?  

[rjs]

They need your Social Security number in order to issue your W-2. They should have gotten it when you started working there. If you did fill out a W-4, you should have put your Social Security number on the W-4, so they shouldn't need a W-9.

Since asking an employee for a W-9 is unusual, you should probably talk to them to clarify why they are asking for a W-9. You want to make sure that they are going to report your income on a W-2 and not a 1099-NEC or 1099-MISC.