Insurance Tax - 2025

Estimated Payment Returns

FORM NUMBER FORM TITLE INSTRUCTIONS PAY ONLINE
INS-1 (PDF) Estimated Payment Return, Insurance Premiums Tax Included Maine Tax Portal
INS-2 (PDF) Estimated Monthly Return, Fire Investigation & Prevention Tax Included Maine Tax Portal
INS-6 (PDF) Estimated Payment Return for Nonadmitted Premiums Tax (Self-procured & Surplus Lines) Included Maine Tax Portal

Insurance Tax Returns

FORM NUMBER FORM TITLE INSTRUCTIONS FILE ONLINE
INS-4 (PDF) Insurance Premiums Tax Return Insurance premiums tax instructions (PDF) n/a
INS-5 (PDF) Fire Investigation & Prevention Tax Return Included n/a
INS-7 (PDF) Nonadmitted Premiums Tax Return (Self-procured & Surplus Lines) Included n/a

To view PDF or Word documents, you will need the free document readers. Alternate formats can be requested via email.