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Maine Filing Guide

Last updated: February 1, 2026

Tax Rate

3.00%

Filing Frequency

quarterly

**Quarterly Filing:** Within 45 days of quarter end • Q1 (Jan-Mar): Due May 15 • Q2 (Apr-Jun): Due August 15 • Q3 (Jul-Sep): Due November 15 • Q4 (Oct-Dec): Due February 15 (following year) **Estimated Payments:** 3 payments required (unless annual tax ≤ $1,000 or Risk Retention Group) • 1st Payment: Due April 30 (35% of prior year OR 3% of Jan 1-Apr 30 premiums) • 2nd Payment: Due June 25 (35% of prior year OR 3% of May 1-June 25 premiums) • 3rd Payment: Due October 31 (15% of prior year OR 3% of June 26-Oct 31 premiums) **Annual Return:** Form INS-7 due March 16 following tax year

Filing Method

portal

Format: Maine Tax Portal electronic format

Requirements

CRITICAL DILIGENT EFFORT: Maine has the most rigid diligent search requirements in the United States. Per Bureau of Insurance Bulletin 457, "a producer may not place a risk in the surplus lines market if the desired coverage exists in the admitted market." This requires confirmation of TOTAL MARKET UNAVAILABILITY, not just three declinations. The test is whether admitted coverage is available to the insured, not to a particular producer. MANDATORY ELECTRONIC FILING: Beginning 2025, MRS Rule 104 requires Form INS-7 to be filed electronically via the Maine Tax Portal at revenue.maine.gov. MANDATORY ELECTRONIC PAYMENT: MRS Rule 102 requires taxpayers with combined annual Maine tax liability of $10,000 or more to pay all Maine taxes electronically. NEW CONSUMER NOTICE REQUIREMENT (Effective September 24, 2025): Per L.D. 1837 (Public Law 2025, Chapter 348) and Me. Rev. Stat. Ann. tit. 24-A §2009: - Consumer notice must be printed in 16-POINT TYPE - Must be on a SEPARATE DOCUMENT affixed to application - Applicant must SIGN AND DATE acknowledgment copy - Surplus lines licensee must retain signed notice for 5 YEARS post-policy expiration - Copy must accompany policy delivered to insured as separate document - Required language: "A nonadmitted or surplus lines insurer is issuing your policy" and "guaranty funds will not pay your claims" if insolvency occurs REQUIRED POLICY STAMP: Every insurance contract must have stamped upon it, bearing the producer name: "This insurance contract is issued pursuant to the Maine Insurance Laws by an insurer neither licensed by nor under the jurisdiction of the Maine Bureau of Insurance." NO STAMPING FEE: Maine does NOT have a stamping office or stamping fees (unlike many other states). TAX CALCULATION: 3% of the difference between gross premiums and return premiums (minus dividends) Applied retroactively to January 1, 2023 ELIGIBLE INSURER LIST: Maine maintains a list of eligible surplus lines insurers. All surplus lines insurers must be on this list. List available at: https://www.pfr.maine.gov/almsonline/almsquery/SearchCompany.aspx INSURER ELIGIBILITY: - Foreign Insurers: $15M capital and surplus required ($4.5M minimum with Commissioner waiver possible) - Alien Insurers: Must be on NAIC Quarterly Listing of Alien Insurers - Commissioner may waive minimum capital/surplus after considering quality of management, parent company capital, underwriting trends, market availability, and company reputation PROHIBITED COVERAGES: Cannot be placed in surplus lines: - Life insurance - Health insurance (except disability insurance) - Employee benefit excess (stop-loss) insurance - Reinsurance - Workers compensation insurance - Motor vehicle insurance (generally prohibited due to assigned risk market availability) TAX EXEMPTIONS (No Diligent Search Required): - Wet marine and transportation insurance - Insurance on subjects located, resident, or to be performed wholly outside Maine - Vehicles or aircraft owned and principally garaged outside Maine - Railroad operations in interstate commerce and their property - Aircraft owned/operated by manufacturers or in commercial interstate flight, or cargo liability (except workers comp) LARGE COMMERCIAL POLICYHOLDER: Per Me. Rev. Stat. Ann. tit. 24-A, § 2412-A, contracts issued to large commercial policyholders are exempt from diligent search requirement. RECORD RETENTION: All surplus lines records must be retained for at least 5 YEARS and be accessible to the State Tax Assessor for at least 6 YEARS. INTEREST AND PENALTIES (2025): - Interest rate: 10% compounded monthly - Late filing penalty: Greater of $25 or 10% of tax due (or 25% if 60+ days after demand notice) - Late payment penalty: 1% per month up to maximum 25%

Filing Methods

  • Maine Tax Portal (Electronic - Required 2025+)
  • Quarterly Filing
  • Annual Filing
  • Estimated Payments (Form INS-6)

Filing Steps

  1. 1Electronic filing MANDATORY beginning 2025 via Maine Tax Portal
  2. 2Electronic payment MANDATORY if combined Maine tax ≥ $10,000
  3. 3Consumer notice must be 16-POINT TYPE on separate document (Sept 24, 2025+)
  4. 4Consumer notice must be SIGNED by applicant and retained 5 years
  5. 5Policy stamp required on all contracts with producer name
  6. 6Diligent search requires TOTAL MARKET UNAVAILABILITY (not just 3 declinations)
  7. 7All insurers must be on Maine eligible insurer list
  8. 8Large commercial policyholders exempt from diligent search
  9. 9Wet marine and transportation exempt from tax (but must use eligible insurer)
  10. 10Quarterly estimated payments required unless annual tax ≤ $1,000
  11. 11Records must be accessible for 6 years
  12. 12No stamping fee or stamping office in Maine

Required Forms

  • Form INS-6 (Estimated Payment) - Due April 30, June 25, October 31
  • Form INS-7 (Annual Return) - Due March 16
  • Consumer Notice (16-point type, signed) - Effective Sept 24, 2025
  • Policy Stamp (required on all contracts)
  • Diligent Search Documentation

Common Issues to Avoid

  • Placing coverage without documenting total market unavailability
  • Missing 16-point consumer notice or improper format
  • Consumer notice not signed by applicant
  • Policy stamp missing or incorrect format
  • Using insurer not on Maine eligible insurer list
  • Missing quarterly estimated payments
  • Filing after 45-day quarterly deadline
  • Not filing electronically (required 2025+)
  • Inadequate record retention (must keep 5-6 years)
  • Placing prohibited coverages (workers comp, motor vehicle, health)
  • Not documenting large commercial policyholder exemption
  • Calculating tax incorrectly (should be on net premiums after returns and dividends)

Helpful Tips

  • Register for Maine Tax Portal account before first filing
  • Create 16-point consumer notice template for Sept 24, 2025+ policies
  • Create policy stamp template with producer information
  • Verify insurer on Maine eligible list before binding
  • Document diligent search showing total market unavailability (not just 3 declinations)
  • Set up quarterly estimated payment reminders (April 30, June 25, Oct 31)
  • Set up quarterly filing reminders (45 days after quarter end)
  • Maintain comprehensive diligent search files
  • Track large commercial policyholders for exemption
  • Separate wet marine and transportation for exemption tracking
  • Keep signed consumer notices for 5 years minimum
  • Maintain all records for 6 years minimum

Important Notes

**MOST RIGID DILIGENT EFFORT**: Maine requires proof of total admitted market unavailability, making it comparatively difficult to place coverage in surplus lines vs. other states. **NEW 2025 CONSUMER NOTICE**: 16-point type, separate signed document, 5-year retention (effective September 24, 2025). **Tax Rate:** 3% on (gross premiums - return premiums - dividends) **Filing System:** Electronic via Maine Tax Portal (mandatory 2025+) **Estimated Payments:** 3 payments annually (April 30, June 25, October 31) unless annual tax ≤ $1,000 **No Stamping Fee:** Maine has no stamping office or fees **Eligible Insurer List:** All surplus lines insurers must be on Maine approved list **Record Retention:** 5 years for consumer notices, 6 years for all other records **Large Commercial:** Exempt from diligent search requirement **Required Stamp:** "This insurance contract is issued pursuant to the Maine Insurance Laws by an insurer neither licensed by nor under the jurisdiction of the Maine Bureau of Insurance."

Frequently Asked Questions

What is the surplus lines tax rate in Maine?

The surplus lines tax rate in Maine is 3.00%.

When is surplus lines tax due in Maine?

**Quarterly Filing:** Within 45 days of quarter end • Q1 (Jan-Mar): Due May 15 • Q2 (Apr-Jun): Due August 15 • Q3 (Jul-Sep): Due November 15 • Q4 (Oct-Dec): Due February 15 (following year) **Estimated Payments:** 3 payments required (unless annual tax ≤ $1,000 or Risk Retention Group) • 1st Payment: Due April 30 (35% of prior year OR 3% of Jan 1-Apr 30 premiums) • 2nd Payment: Due June 25 (35% of prior year OR 3% of May 1-June 25 premiums) • 3rd Payment: Due October 31 (15% of prior year OR 3% of June 26-Oct 31 premiums) **Annual Return:** Form INS-7 due March 16 following tax year

How do I submit surplus lines filings in Maine?

portal