If my w-2 form don't have a employer ID number, can I put my social security number in that box when filing my taxes ?

[VolvoGirl]

No.  You have to have an employer number EIN in box b.  Ask the employer for it.   Or did you get a second W2 from this employer?  Did you actually get a W2 or just trying to fill one out on Turbo Tax?  

Or are you asking about box d?   W2 box d Control number is not needed.  See

https://ttlc.intuit.com/community/forms/help/i-have-no-box-d-or-control-number-on-my-w-2/00/26469

The control number in box d is not required by the IRS - it is used by your employer.  As a result, if it causing you trouble, just delete it.  If it is not causing you trouble, then leave it in - it won't matter.

[Bsch4477]

No. Contact your employer for their  EIN number. 

[SweetieJean]

Or are you asking about a 1099 or some form other than a W-2?