The account's own paperwork controls
The same core principle governing Hawaii real estate applies to bank accounts: what the account documents actually say — not what the family assumed or intended — determines how the account is legally classified. A real Hawaii appellate case, Traders Travel Intern., Inc. v. Howser, shows this in stark, practical terms.
An ordinary joint account, not a protected entirety
In that case, a judgment creditor sought to garnish a family's joint bank account. The debtor argued the account was a tenancy by the entirety with his spouse — a form of ownership that generally shields property from a creditor pursuing only one spouse's individual debts. The court disagreed: the account's plain signature-card language described an ordinary joint account, analogous to a joint tenancy, not a tenancy by the entirety. Because no real ambiguity existed once that language was read, the court didn't need to look any further into the family's actual intentions or understanding — the document controlled.
Why an ordinary joint account is more exposed
This distinction has real financial stakes. A creditor generally can garnish the joint bank account of a debtor, even though other account holders exist alongside them, though courts differ on exactly how much of the account is actually vulnerable. The debtor is presumptively treated as holding the entire account for these purposes, though the debtor can attempt to disprove that presumption and establish their true, smaller equitable interest in the funds. A genuine tenancy by the entirety account avoids this exposure entirely, since a creditor of just one spouse generally can't reach entirety property at all — which is exactly why the outcome in Howser mattered so much to that family.
How to actually get entirety protection
The lesson from the case is direct: a married couple, or reciprocal beneficiaries, who specifically want tenancy-by-the-entirety protection for a bank account need to indicate that intent clearly on the bank's own account-opening documents. Simply being married, or assuming a joint account carries this protection by default, isn't enough — the bank's standard joint-account paperwork typically doesn't create tenancy by the entirety on its own, and a couple genuinely wanting that protection may need to ask the bank directly whether it offers entirety-specific account documentation.
P.O.D. designations, life insurance, and retirement accounts
A payable-on-death (P.O.D.) beneficiary designation works differently from joint ownership between co-owners, and doesn't carry the same garnishment-exposure question described above, since the named beneficiary has no ownership interest at all until the original owner dies. Life insurance and retirement accounts like a 401(k) or IRA follow the same basic rule: the named beneficiary receives the asset directly, outside probate, as long as they're alive when the owner dies, and it only becomes part of the probate estate if no beneficiary was ever named or every named beneficiary predeceased the owner with no contingent beneficiary in place.
Real estate follows the identical underlying principle
The same "manifestly appears" standard applies to real estate held under Hawaii's joint tenancy and tenancy by the entirety statutes — a deed's own wording, not the owners' assumptions, is what determines whether real property carries entirety protection or survivorship at all.