What is Hawaii state income tax?
Hawaii has 12 brackets from 1.4% to 11%; most single filers with middle incomes are in the 7.6% bracket ($48,000–$125,000 of taxable income). The calculator applies these 2026 brackets after the $8,000 single / $16,000 married joint standard deduction and $1,144 personal exemption. Rates: Hawaii Department of Taxation.