The Union Bank transfer code is a USSD code that allows customers to perform various banking transactions with their mobile phones. The official Union Bank USSD code is _826#. This code can be used to send money, buy airtime, check account balance, and perform other banking activities. To transfer money using the Union Bank transfer code, dial 826 1_amount _account number# for transfers to Union Bank accounts, and 826 2_amount*account number# for transfers to other banks