Maine Sales Tax and Invoicing Rules for 2026

TL;DR: Maine charges a flat 5.5% state sales tax with no local add-ons. Remote sellers exceeding $100,000 in sales or 200 transactions must collect. Groceries and most clothing are exempt, and Maine taxes lodging and prepared food at a higher 8% rate.

Maine offers a consumer-friendly sales tax system with exemptions for both groceries and clothing. However, businesses in the hospitality sector face higher rates on prepared food and lodging. The uniform statewide rate with no local taxes simplifies compliance for general merchandise sellers. This guide covers Maine's rates, nexus rules, invoice requirements, exemptions, filing deadlines, and penalties for 2026.

State sales tax rate

Maine imposes a 5.5% state sales and use tax on most retail sales of tangible personal property and certain services. There are no local sales taxes in Maine, so the rate is uniform statewide. Maine applies special higher rates to certain categories: lodging and prepared food are taxed at 8%, and short-term automobile rentals are taxed at 10%. These higher rates are particularly significant for businesses in Maine's tourism and hospitality sector.

The uniform statewide rate simplifies compliance for businesses selling general merchandise, though hospitality businesses must track the different rate tiers carefully on their invoices.

Nexus rules

Physical nexus exists if you have a business location, employees, warehouse, inventory, or agents in Maine. Making regular deliveries into Maine with your own vehicles can also establish nexus.

Economic nexus applies to remote sellers with $100,000 or more in gross revenue or 200 or more transactions from sales delivered into Maine during the previous or current calendar year. Either threshold triggers the obligation. Marketplace facilitators must collect and remit on behalf of their third-party sellers once the facilitator meets either threshold. Maine processes registrations through the Maine Revenue Services portal.

What must appear on invoices

Maine Revenue Services expects invoices to include:

• Seller's name, address, and Maine sales tax registration number
• Buyer's name and address
• Date of sale
• Itemized description of goods or services
• Sale price before tax
• Sales tax shown as a separate line item
• Applicable tax rate (5.5% for general goods, 8% for lodging/prepared food, 10% for auto rentals)
• Total amount including tax
• Exemption certificate number for exempt sales

Businesses selling both general merchandise and prepared food should clearly distinguish items subject to different rates on the invoice. Records should be maintained for at least three years for audit purposes.

Exemptions and special cases

Maine exempts the following:

• Groceries (unprepared food for home consumption) are exempt
• Clothing is exempt (Maine is one of a small number of states fully exempting clothing)
• Prescription drugs and medical devices
• Sales to federal, state, and local government agencies
• Agricultural supplies and equipment used in farming
• Manufacturing machinery and equipment used directly in production
• Fuel for heating residential properties (including heating oil, propane, and wood pellets)
• Purchases by qualifying nonprofit organizations
• Boats, snowmobiles, and ATVs (subject to separate excise taxes instead)

Prepared food (restaurant meals, catering, take-out) is taxable at the higher 8% rate, not the 5.5% general rate. Digital products are generally not taxable in Maine when delivered electronically. SaaS is not currently taxed. Most services are not taxable unless they involve repair, installation, or fabrication of tangible property.

Filing frequency and deadlines

Maine requires electronic filing through the Maine Tax Portal. New businesses must file monthly for the first year regardless of actual liability. There is no vendor discount for timely filing in Maine. Returns must be filed for all periods even when no tax is collected. If a due date falls on a weekend or holiday, the deadline extends to the next business day.

Penalties for non-compliance

A penalty of 1% per month of unpaid tax applies for late payment, up to a maximum of 25%. A separate penalty of $25 per return applies for late filing. Interest accrues at the rate published annually by Maine Revenue Services (typically the federal short-term rate plus a margin). Failure to register and collect when required results in personal liability for responsible individuals, and the state can assess back taxes for the full period of non-compliance.

Frequently asked questions

Is clothing taxable in Maine? No. Maine fully exempts clothing and footwear from sales tax, regardless of price. This applies to all everyday clothing items. There is no price threshold -- even high-priced clothing is exempt. This makes Maine one of the most clothing-friendly states for consumers.

What is the tax rate on restaurant meals in Maine? Prepared food, including restaurant meals, catering, and take-out food, is taxed at 8%, not the standard 5.5% rate. This higher rate also applies to lodging in hotels, motels, bed-and-breakfasts, and short-term rental properties like vacation homes rented through platforms.

Does Maine tax digital products or SaaS? No. Maine generally does not tax digital products delivered electronically or SaaS subscriptions. Prewritten software on tangible media (like a CD) is taxable at the standard 5.5% rate, but electronically delivered software and cloud-based services are exempt. This makes Maine relatively favorable for technology and digital service businesses selling to Maine customers.

Are shipping charges taxable in Maine? No. Maine exempts delivery charges from sales tax when they are separately stated on the invoice. If delivery charges are bundled into the selling price, they become taxable as part of the sale price.