A tax refund formally known as tax rebate is the refundable money when the total payable tax is less than the tax paid. A tax refund is claimed when the tax payers have paid an assessment more than the actual tax. Tax refunds are paid at the end of the financial year and can be directly deposited into the bank account of the Taxpayers. The Hawaii Department of Taxation (DOT) also offers customer care and online service to pay taxes and check the status of their tax refund. Toll Free Number: +1-800-222-3229 The contact details like address, contact number, customer care number and customer service phone number of Hawaii State Tax Refund is displayed above.