Bar Harbor Bankshares operates as the holding company for Bar Harbor Bank & Trust that provides banking and nonbanking products and services primarily to consumers and businesses. It offers deposit products, including interest-bearing and non-interest-bearing demand accounts, savings accounts, time deposits, and money market deposit accounts, as well as certificates of deposit. The company also provides commercial construction loans, such as raw land, land development, and construction of commercial and multifamily residential properties; commercial real estate owner occupied and non-owner occupied loans; tax exempt loans to various state and municipal government entities; commercial and industrial loans, including loans for the purpose of financing working capital and capital investment; residential real estate loans consists of one-to-four family homes; home equity loans; and consumer loans, including personal lines of credit and amortizing loans to qualified individuals for various purposes, such as auto loans, recreational equipment, overdraft protection, and other consumer loans, as well as allowance for credit losses. In addition, it provides life insurance, annuity, and retirement products; financial planning services; and third-party investment and insurance services.