Bank OZK operates as a full-service Arkansas state-chartered bank that provides retail and commercial banking services in the United States. The company offers deposit services, including non-interest-bearing checking, interest bearing transaction, business sweep, savings, money market, individual retirement, and other accounts, as well as time and reciprocal deposits. It also provides trust and wealth services, such as personal trusts, custodial accounts, investment management accounts, and retirement accounts; corporate trust services that include trustee, paying agent and registered transfer agent services, and other related services; and treasury management services, which include automated clearing house, wire transfer, current and prior day transaction reporting, wholesale lockbox, remote deposit capture, automated credit line transfer, reconciliation, positive pay, commercial card, and other services, as well as zero balance and investment sweep accounts. In addition, the company offers real estate, consumer, small business, indirect recreational vehicle and marine, equipment, agricultural, commercial and industrial, government guaranteed, lines of credit, homebuilder, and housing loans; lender and structured, business aviation, and subscription financing services; and mortgage and other lending products.