Generally, individuals who do not earn income in Hawaii may not be required to file a state tax return. However, there are certain circumstances that could mandate filing even without income. For instance, if an individual received any taxable income from other sources, such as unemployment benefits or rental income, a return may still need to be filed. Additionally, if an individual is eligible for certain tax credits or is expecting a refund, filing a return could be beneficial. It is important to note that specific filing requirements may vary depending on other factors, such as residency status, age, and dependency status. Therefore, for detailed guidance on filing requirements based on individual circumstances, it may be helpful to consult the relevant information available on the State of Hawaii Department of Taxation's website.