Questions people ask
Can both spouses have access to a vault box?
The short answer
A vault box can be rented by one person, by two people jointly, or in the name of a trust or company, and the rental agreement decides who may enter. Choosing that structure before it matters is the useful part.
The longer answer
A sole rental means one named person may enter, and nobody else. A joint rental means either named person may enter, alone. A rental held by a trust or company belongs to the entity rather than to either spouse. Which one fits depends less on the box than on the marriage.
Joint rental suits a couple who want equal footing and trust each other with it. It is exactly wrong for a couple heading toward separation, because either one can visit without the other knowing until afterward. If your marriage is already in trouble, two sole boxes are the plainer answer. They cost more than one joint box; the difference is small next to what it avoids.
A trust rental keeps access from depending on one person. Access to a box held in one person's name can become complicated after that person dies, which matters most when the original will is inside that box. It is also a more formal arrangement. For a couple with no estate planning in play, it is more than they need.
The choice is easiest before anything is strained, when it reads as paperwork instead of a statement. Settled later, it gets settled while the stakes are visible. Talk to your attorney about which structure fits your marriage and any estate plan you already have. The rental and intake steps are then set up to match that choice, and the rental agreement records who may enter.
Rented alone, still in disclosure
A box is discoverable in a Florida divorce whichever name is on the rental. The name decides who may enter. It does not decide whether the box exists for the purposes of the case. Your attorney will want to know about it before the other side's attorney asks.
Some people rent alone so that their own records stay reachable while the house itself is contested, and that is a reasonable use. It works best in the open: your attorney knows the box exists, the other side learns of it through disclosure, and the inventory shows what it holds. If the other spouse asks what is in it, the inventory is the answer. Each spouse can rent a separate box here, and each rental is identified, logged and discoverable on the same terms.
What the name on a box does settle is the everyday question of who can walk in on a given morning. A couple who rent jointly and later separate still share a box, and that is worth planning for while the two of you still agree on things. Sole rental is about who holds the key. It has nothing to do with who is told.