Two Different Questions About the Same Account
When two people share a bank account, there are two separate legal questions at play. The first is: who can access the money right now? The second is: who actually owns the money? This statute draws a clear line between those two questions.
The requirements of this article that relate to beneficial ownership as between parties or as between parties and beneficiaries apply only to controversies between those persons and their creditors and other successors and do not apply to the right of those persons to payment as determined by the terms of the account.
A.R.S. § 14-6206The bank pays out based on the account agreement. If two people are listed on a joint account, both can make withdrawals. The bank does not need to figure out who contributed what before honoring a withdrawal request.
When Ownership Questions Come Up
The ownership rules under this article matter when someone challenges who the money really belongs to. That might happen during a divorce, after a death, in a creditor dispute, or when a family member claims that funds in a joint account were not meant to be a gift.
In those situations, Arizona looks at net contributions: who actually deposited the money. A parent who adds an adult child to a bank account for convenience does not automatically give that child a 50% ownership interest. The child can access the account, but in a legal dispute, the parent's contributions determine beneficial ownership.
This distinction protects account holders who add someone to an account for practical reasons, like bill-paying or emergency access, without intending to transfer half the balance as a gift. It also matters for creditors. If one account holder owes a debt, the creditor can generally only reach the portion that actually belongs to that person.
