Hawaii Tax Deadlines

When are taxes due in Hawaii?

Hawaii state income tax returns for 2025 are generally due on April 15, 2026, aligning with the federal deadline. However, some entity types such as partnerships and S-corporations have earlier deadlines (March 16, 2026). Check the deadlines above for your specific entity type.

Does Hawaii require estimated tax payments?

Yes, Hawaii generally requires estimated tax payments if you expect to owe more than a certain threshold in state income tax. Payments typically follow a quarterly schedule. Visit the estimated payments page for Hawaii for specific due dates.

What is the Hawaii tax extension deadline?

Hawaii generally grants a 6-month extension for filing state income tax returns, moving the deadline to October 15, 2026 for most individual filers. Note that an extension to file is not an extension to pay — any tax owed is still due by the original deadline.

What are the Hawaii tax rates for 2026?

Hawaii tax rates vary by income level and filing status. For the most current rates and brackets, visit Hawaii Department of Taxation at https://tax.hawaii.gov. Tax rates can change annually based on state legislation.

Does Hawaii conform to federal due dates?

Many Hawaii deadlines follow the federal calendar. Always confirm on Hawaii Department of Taxation.

Where can I file Hawaii tax forms?

Visit Hawaii Department of Taxation at https://tax.hawaii.gov for official forms and e-file options.