Non vested Monies in 401k

The money doesn't become yours until it vests, so when you leave the employer, the non-vested money is money you never had.  With respect to your 401(k), it simply disappears from your balance; it's not a distribution.  You aren't taxed on money that was never yours.

Thank you so much for the clarification.  I suspected that but could not find that specific information within the irs directions.