August 2026 ยท Civil Law ยท 10 min read ยท Ahmad Abdulla Ahli Advocates & Legal Consultants
Joint bank accounts are usually opened for convenience. Spouses may use them to pay household expenses. Parents and children may use them to manage family support. Investors may use them for a particular transaction. But there is a common โ and potentially expensive โ misunderstanding: putting money into a joint account does not necessarily mean that the person who deposited the money retains exclusive control over it. It is equally important not to assume that the word "joint" automatically means every transaction requires the consent of every account holder.
Under UAE law, there are usually three separate questions:
The bank account mandate matters. Article 379 of Federal Decree-Law No. 50 of 2022 concerning the Commercial Transactions Law provides that withdrawals from a joint account are to be made according to the agreement of the account holders, and that joint account holders have equal shares unless another arrangement has been agreed and recorded with the bank. The first document to examine in almost any UAE joint bank account dispute is therefore the account-opening documentation and operating mandate โ for example, whether either holder can transact independently, whether both must approve transactions, or whether transaction limits apply.
This is why a dispute cannot usually be resolved simply by asking "who deposited the money?" The better starting question is "what authority did the account holders give the bank?"
A person's authority to withdraw money from an account does not necessarily determine that person's ultimate entitlement to keep the money. The bank is principally concerned with whether a transaction was made by someone authorised to operate the account under the applicable mandate โ that is the relationship with the bank. A separate dispute may arise between the account holders over whether one holder was actually entitled, as between the parties, to use or retain the funds, involving questions of ownership, loan and repayment obligations, agency, contribution or unjustified enrichment. A withdrawal may therefore be authorised from the bank's perspective while still giving rise to a separate claim between the account holders.
Not automatically. Article 379 states that a bank may open a joint account between two or more persons with equal shares among them unless otherwise agreed and recorded with the bank. If one person intends to contribute substantially more but does not intend to give the other holder an equal beneficial entitlement, that intention should not be left to assumption โ the court may need to examine the entire arrangement between the parties.
Contemporaneous evidence is usually much more persuasive than explanations created after the relationship has broken down. Relevant evidence may include the original joint-account application, the bank mandate and signing instructions, written agreements between the account holders, loan agreements, WhatsApp messages or emails explaining the purpose of the funds, acknowledgements of debt, and invoices or documents showing the intended use of funds. If money is intended to be a loan, document it as a loan; if it can be used only for a specific purpose, record that restriction; do not expect the word "joint" to perform the work of a properly drafted agreement.
UAE case law reinforces the importance of examining the account arrangements and evidence governing the parties' rights. A Dubai Court of Cassation decision has been reported as Real Estate Cassation No. 48/2023, dated 12 December 2023, cited for the proposition that where a joint-account arrangement permits a holder to withdraw without the other holder's approval, the existence or absence of agreed withdrawal restrictions is central to the dispute. The safest question is not "is a joint account automatically either-to-sign or both-to-sign?" but "what mandate was actually agreed and recorded for this particular account?"
If you are contributing most or all of the funds, do not rely on verbal understandings. First, choose the operating mandate carefully with the bank โ considering joint approval for withdrawals, individual signing authority only up to specified limits, or transaction caps โ and ensure any agreed restriction is actually incorporated into the bank's mandate. Second, sign a separate agreement between the account holders addressing permitted use, approval mechanics, ownership proportions, whether contributions are repayable, accounting requirements, dispute procedure and how the remaining balance will be distributed when the arrangement ends.
Under Article 379(4), the other account holders must notify the bank of a joint holder's death or loss of capacity within 10 days. Once notified, the bank must suspend withdrawals within the limits of that person's share of the account balance as at the date of death or incapacity, and withdrawals from that share cannot be made until a successor is appointed. Assumptions based on concepts such as "survivorship" in other jurisdictions should not simply be imported into a UAE joint-account situation without examining UAE succession law and the applicable banking documentation.
Article 379 also addresses attachment: where a joint account holder's balance is seized, the seizure applies to that holder's share as at the date the bank receives the seizure notice, and the bank must suspend withdrawals to the extent of the seized share and notify the joint account holders within the statutory period. This is another reason why each holder's share should not be confused with day-to-day signing authority.
A joint bank account is a convenient banking tool, but convenience should not be confused with legal certainty. When substantial funds are involved, remember three separate issues: authority (who can instruct the bank), ownership (who is legally entitled to what share) and recovery (whether one account holder has a claim against the other). If you are the primary contributor and expect restrictions on how the money can be used, those restrictions should be documented before the funds are deposited, not reconstructed after a dispute arises. Our Civil Law team advises on joint-account disputes, banking mandates and disputed withdrawals โ read more about our Civil Law practice.