How to find my federal I'd number on paystub

[VolvoGirl]

Do not use your paystub to fill out the W2.  You need to use the actual W2.  Your paystub won't match the W2.  There are several items that affect the amounts.  Most people that use the paystub have to send in an Amended return later.  If you don't have your W2 ask the employer for another copy.