In Hawaii, GET filing frequency is determined by gross income:

• Monthly Filing: Businesses with gross income over $4,000/month must file monthly GET returns by the 20th of the following month.

• Quarterly Filing: Businesses with gross income between $2,000 and $4,000/month file quarterly by the 20th after each quarter’s end.

• Semiannual Filing: Businesses with gross income under $2,000/month file semiannually by the 20th following each semiannual period.

Determining the correct frequency based on gross income ensures timely compliance and avoids penalties.