Sales Tax Nexus in Maine: What Online Sellers Need to Know

The Short Answer

Maine triggers sales tax obligations at $100,000 in sales OR 200 transactions. Single statewide rate, no local taxes. SaaS is taxable. Maine is one of the simpler states to administer despite its New England location.

Economic Nexus Threshold

• Dollar threshold: $100,000 in gross receipts from retail sales into Maine
• Transaction threshold: 200 or more separate transactions
• Either/Or: Meeting either triggers the obligation
• Measurement period: Preceding 12 calendar months (rolling)
• Effective date: July 1, 2018

Does Maine Count Marketplace Sales Toward Your Threshold?

Marketplace facilitators collect and remit Maine sales tax on facilitated transactions. Marketplace sellers are generally relieved when the MF is collecting. Taxero confirms your situation during onboarding.

What Taxable Products Look Like in Maine

• State rate: Flat statewide — no local additions
• Special rates: Prepared food and lodging are taxed at separate, higher rates
• Groceries: Most unprepared food exempt
• Clothing: Taxable
• SaaS and digital goods: Taxable. Maine taxes electronically delivered services including cloud software.

How to Register in Maine

Maine withdrew from SST, so register directly:

• Portal: Maine Revenue Services Online at portal.maine.gov/rey
• Cost: Free

Filing Requirements

Monthly or quarterly based on liability. Due approximately 15th of the following month. File Form ST-7.

What Happens If You Don't Register

Late filing: 10% of tax due or $1,000/month, whichever is less.

How Taxero Handles Maine

Maine's simplicity (flat rate, no local complexity) makes this a fast, clean setup. Taxero handles registration, applies SaaS taxability, and manages quarterly filings.

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