What is Maine's e-commerce sales tax in 2026?

Maine's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Maine-destination revenue. As a remote seller, charge the 5.50% state rate plus any applicable local rate at the buyer's ship-to address.

Do I collect sales tax on every Maine order?

You collect Maine sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Maine).

What rate do I charge for Maine e-commerce sales?

For sales shipped into Maine from out of state, charge the 5.50% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable ME in tax settings. Sales that both begin and end inside Maine can follow a different sourcing rule in a minority of states — check with the Maine Department of Revenue if you are an in-state seller.

Do I need to collect sales tax on shipping in Maine?

It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Maine's specific policy or use a tax service that encodes the rule.

Maine E-commerce Sales Tax Nexus Guide — 2026

Updated 2026-08-16

Reviewed by Nexus by State research team using official state tax sources. Last reviewed 2026-08-16.

Guide content last reviewed: 2026-08-16

Selling into Maine from outside it creates three separate duties, not one — registering, collecting at the right delivery-address rate, and filing on the cadence the state assigns you. This guide walks an online store through all three under Maine’s 2026 rules.

E-commerce sales tax basics in Maine

For a direct-to-consumer store (Shopify, WooCommerce, BigCommerce, or custom) shipping to Maine buyers, the economic nexus trigger is $100,000 in ME-destination revenue (effective 2022-01-01). Crossing that bar obligates registration, collection, and periodic filing.

Once registered, charge 5.50% state tax on most tangible personal property. Digital products, subscriptions, and professional services have different treatment — see the Maine SaaS page if you sell software or digital goods.

Registration + collection checklist

Register with the Maine Department of Revenue for a sales tax permit.
Configure your cart platform to collect tax at the destination rate. Enable ME in your tax settings.
As a remote seller, charge the combined state + local rate at the customer's delivery address — interstate sales are sourced to the destination, not to where you ship from.
File returns on the cadence your DOR assigns (monthly, quarterly, or annually).
Track your Maine-sourced revenue monthly so you know when you're approaching or below threshold for the next period.

Common mistakes e-commerce sellers make in Maine

Using origin-based rates (your HQ state's rate) instead of destination rates. A sale shipped from outside Maine into Maine is sourced to the buyer's delivery address, so charge the ME rate, not your home state's. Intrastate sales are a separate question: a minority of US states apply origin sourcing to sales that both begin and end in-state, so if your business is located in Maine, confirm the intrastate rule with the Maine Department of Revenue before configuring your cart.
Guessing at how marketplace sales count toward the Maine threshold. States split on this — some let a seller exclude sales a registered marketplace facilitator already collected on, others require those sales to be included in the threshold test even though the marketplace remits the tax. Read Maine’s own rule on the Maine marketplace facilitator page before adding or removing them from your nexus-tracking spreadsheet.
Waiting until year-end to register. Registration and collection deadlines run from the threshold-crossing date, and the length of that grace period is set by each state — some require collection on the very next transaction, others allow until the first day of a later month. Check Maine’s deadline with the DOR as soon as you cross $100,000; back-tax exposure accrues for every day you sell unregistered.
Forgetting to file zero returns once registered. Missing filings trigger penalties even when you owe no tax.

Maine nexus note

Maine sales tax nexus and economic nexus threshold: Maine’s remote-seller trigger is sales-only. Under 36 M.R.S. §1754-B(1-B)(B), a person must register and collect Maine sales tax if its gross sales from delivery of tangible personal property or taxable services into Maine "in the previous calendar year or current calendar year exceeds $100,000" — there is no transaction-count prong. Read the 200-transaction figure you will find elsewhere with care: it comes from two provisions Maine has repealed. 36 M.R.S. §1951-B ("Collection of tax by remote sellers"), which set the original "$100,000 or at least 200 separate transactions" test, is repealed (PL 2019, c. 401, Pt. B, §21; PL 2019, c. 441, §7), and §1754-B(1-A) ("Persons presumptively required to register"), which carried the transaction presumption, is repealed by PL 2021, c. 181, Pt. B, §4 — the same chapter that replaced paragraph (B) with the sales-only test (PL 2021, c. 181, Pt. B, §5). Two widely used references had not caught up when this record was verified on 2026-08-10: Maine Revenue Services’ own "Guidance for Remote Sellers" page still describes the repealed §1951-B test, and the Streamlined Sales Tax Governing Board’s multistate remote-seller table still lists Maine at "$100,000 or at least 200 separate transactions." A small seller with many low-value Maine orders should not register on the transaction count alone. Marketplace facilitators are covered separately by §1754-B(1-B)(K): a facilitator registers once its Maine gross sales exceed $100,000, and that figure includes sales it facilitates for marketplace sellers as well as its own. Maine imposes a 5.5% state sales tax with no local sales tax. Maine Revised Statutes and Maine Revenue Services source data last retrieved 2026-08-10.

What to do next

Read the full Maine overview for thresholds, filing frequency, marketplace facilitator rules, and registration links. Use the nexus calculator to check whether you have crossed the threshold. For background on the post-Wayfair economic nexus framework, see the pillar guide.

E-commerce sales tax in other states

Compare Maine's e-commerce rules with nearby and similar states' e-commerce sales tax guides:

Frequently asked questions

What is Maine's e-commerce sales tax in 2026?: Maine's 2026 e-commerce sales tax: out-of-state sellers collect once they cross $100,000 in Maine-destination revenue. As a remote seller, charge the 5.50% state rate plus any applicable local rate at the buyer's ship-to address.
Do I collect sales tax on every Maine order?: You collect Maine sales tax once you cross the economic nexus threshold ($100,000). Below threshold, you don't need to collect unless you have physical nexus (office, employees, inventory in Maine).
What rate do I charge for Maine e-commerce sales?: For sales shipped into Maine from out of state, charge the 5.50% state rate plus any applicable local rate at the buyer's ship-to address. Most e-commerce platforms (Shopify, WooCommerce) can apply destination rates automatically when you enable ME in tax settings. Sales that both begin and end inside Maine can follow a different sourcing rule in a minority of states — check with the Maine Department of Revenue if you are an in-state seller.
Do I need to collect sales tax on shipping in Maine?: It depends on state-specific rules. Many states tax shipping when the product is taxable; some states exempt shipping if separately stated. Check Maine's specific policy or use a tax service that encodes the rule.

Sources

date_retrieved: 2026-08-10