What is the mandatory IRA withdrawal age?

The Internal Revenue Services states that the mandatory withdrawal age for IRA accounts is 70 1/2. This is the age at which individuals have to start making the minimum distributions from their accounts.

These minimum distributions must begin on or before April 1 of the year that the individual reaches the age of 70 1/2, according to Bankrate. However, the minimum distribution amount changes on an annual basis. Factors that can determine the minimum distribution amount include the account's year-end value, the distribution period that is determined by the Internal Revenue Service, and the age of the individual as of December 31.