No Distinction Between Half and Full Siblings
In some families, not all siblings share both parents. A half-sibling shares one biological parent with you but not the other. Arizona law makes this simple: it does not matter.
Relatives of the half blood inherit the same share they would inherit if they were of the whole blood.
A.R.S. § 14-2107This means a half-brother or half-sister stands on equal footing with a full sibling when it comes to inheriting through intestate succession. If the deceased had no spouse, no children, and no surviving parents, the estate passes to siblings under A.R.S. § 14-2103. A half-sibling's share is identical to that of a full sibling.
Why This Matters for Modern Families
Blended families, second marriages, and children from prior relationships are common. This statute ensures that half-blood relatives are not penalized or reduced in their inheritance simply because they share only one parent with the deceased.
The rule extends beyond siblings. Any relative connected through half-blood, such as a half-niece, half-nephew, or half-uncle, inherits the same as their whole-blood counterpart would under Arizona's intestacy rules.
While this equal treatment reflects a fair default, it may not match everyone's wishes. If you want to distribute assets differently among full and half-siblings, or exclude certain relatives entirely, a will or living trust gives you that control. Without one, this statute treats all blood connections equally.
