Per stirpes is an estate planning legal term, which forms an allocation of assets. In case of death of a primary beneficiary, before the individual who has written the will there is equal distribution between him and his children or he will get the share of his immediate family members. This means that all the branches of a family are guaranteed to get what they rightfully deserve in an inheritance so that there is no chance of the family of a deceased heir being unintentionally locked out of an inheritance.