What age can you collect from your 401k plan?

You can collect from a 401K at any age; however, there are withdrawal penalties as well as tax penalties until age 59-1/2. After 59-1/2 you will still have the penalty of it being taxable income, but the early withdrawal penalty goes away. the goal is to delay withdrawals until retirement when your taxable income normally drops somewhat, and even then withdrawal should be viewed closely to not exceed withdrawals that will negatively impact one from a taxable income standpoint.