File Hawaii Form N-1
Prepare Hawaii Form N-1 now with TaxAct
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Form N-1 may be used by taxpayers who need to report their estimated income tax. Hawaii Form N-1 must be filed no later than April 20th. Payments are not required for the following cases: • The taxpayer’s estimated tax liability (if the taxable year is less than $500). • The taxpayer did not have any tax liability for the preceding taxable year.