When a Future Interest Is Certain
Not all future interests carry the same weight. Arizona law draws a clear line between vested and contingent interests. The distinction affects everything from property tax treatment to how courts handle disputes during estate settlement.
A future estate is vested when there is a person in being who would have immediate right to the possession of the lands upon the termination of the intermediate or precedent estate.
A.R.S. § 33-205(A)A vested interest means someone specific is already identified and alive. If a parent holds a life estate and their adult child holds the remainder, that remainder is vested. The child does not need to wait for a condition to be met. They simply wait for the life estate to end.
When the Outcome Is Still Uncertain
A future estate is contingent while the person to whom, or the event upon which it is limited to take effect, remains uncertain.
A.R.S. § 33-205(B)A contingent interest depends on something that has not happened yet. If a trust says "the property goes to my first grandchild who graduates from college," that interest is contingent until someone meets the condition. If no grandchild ever qualifies, the interest may never vest at all.
This distinction matters for estate planning because vested interests are stronger, more predictable, and easier to transfer. Contingent interests introduce uncertainty that can complicate property sales and family transitions.
For families with young children, these categories shape how property passes to the next generation. A vested remainder gives a child a guaranteed future share of the family home or other real property. A contingent remainder may leave that outcome in doubt for years.
Parents who want to avoid confusion often structure their estate plans with vested interests and clear backup provisions. This approach reduces the chance of court disputes among siblings or other family members after the parents pass away.