HRS §231-21
When tax payments are due on weekends or holidays
If a tax payment or required document is due on a Saturday, Sunday, or legal holiday, it is not due until the next day that is not a weekend or holiday. This gives you extra time to file or pay.
The statute, as written — Due date on Saturday, Sunday, or holiday
When the due date for any remittance or document required by any law imposing a tax falls on a Saturday, Sunday, or legal holiday, the remittance or document shall not be due until the next succeeding day which is not a Saturday, Sunday, or legal holiday.
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