Hawaii residents can file their state tax returns through the Hawaii Department of Taxation's online portal or by mail. Taxpayers should ensure they have the necessary documentation, such as W-2 forms and receipts when filing their returns. It's important to review all information carefully to avoid errors and to be aware of any specific credits or deductions available for Hawaii residents. Individuals can also seek assistance from tax professionals or the Department of Taxation if they have questions or need help with their filings. Contact 808-343-1413 and visit our website: https://www.haw