Maine Sales Tax: Rates, Rules, and How to Calculate It (2026)
Maine has a simple, flat 5.5% sales tax across the entire state. There are no local add-ons or regional variations, making Maine one of the easiest states to calculate tax for.
| Statewide base rate | 5.5% |
|---|---|
| Typical combined rate | 5.5%–5.5% |
| Are groceries taxed? | Exempt |
| Economic nexus threshold | ≈$100,000/yr (verify) |
| Taxing jurisdictions tracked | 506 |
| Get the exact rate | Look up any Maine ZIP or address instantly |
How much is sales tax in Maine?
Maine's sales tax is a straight 5.5% statewide with no local modifications. All 506 taxing jurisdictions use the same rate—no exceptions, no variations by town or county. The uniformity holds from the Portland metro area to the smallest coastal villages.
With a flat rate, you don't need address-level lookups to change your calculation. Maine keeps it uniform across the state, so the tax is predictable anywhere your customer lives. No surprises, no compliance headaches.
What's taxed and what's exempt in Maine
Groceries are exempt in Maine, keeping food costs predictable for households. Clothing is taxable at the 5.5% rate.
SaaS and digital software are not taxed in Maine, so subscriptions and cloud applications skip sales tax entirely. Prescription medicines are exempt. Prepared and restaurant meals are taxable.
Do you have to collect Maine sales tax? (Economic nexus)
Like most states after the 2018 Wayfair decision, Maine requires out-of-state sellers to register and collect once their sales into the state cross an economic-nexus threshold. That line is commonly around $100,000 of sales into Maine per year, and some states also count a number of separate transactions — but the exact figure, and whether the transaction count still applies, change from time to time. Confirm Maine's current threshold before you rely on it.
If you sell into Maine from out of state, the practical question is whether you've crossed that line. Watching your sales into each state is how you know when you're on the hook — and it's the kind of thing that's easy to miss until a notice shows up.
Nexus rules change often and vary by state (reviewed 2026-01-01). This is general information, not tax advice — confirm your obligations with the Maine Department of Revenue or a tax professional.
How to calculate Maine sales tax
The math itself is simple: multiply the taxable price by the combined rate for the buyer's location. A $100 order at 5.5% means about $5.50 in tax. The hard part is getting the right rate for every address, keeping it current as rates change, and doing it fast enough to run inside a checkout.
That's what Sefro does. One API call returns the combined state, county, city, and special-district rate for any US address, sourced from state Departments of Revenue and refreshed weekly. You can also calculate the full tax on an order, validate addresses, and pull return-ready reports. See how the data is sourced or pricing to start.
Look up the Maine sales tax rate for any ZIP
Enter a Maine ZIP code to see the live combined rate from the Sefro API.
Frequently asked questions
What is the sales tax rate in Maine?
Maine's sales tax is 5.5% everywhere in the state. There are no local taxes, no city-specific rates, and no regional variations.
Are groceries taxed in Maine?
No, groceries are exempt from Maine's sales tax. Food purchased for home consumption is tax-free.
Do I have to collect Maine sales tax if I sell online?
Once your sales into Maine cross its economic-nexus threshold — commonly around $100,000 a year, sometimes with a transaction count — you generally must register and collect. Because states adjust these rules, check Maine's current figure before relying on it.
How do I find the exact rate for a Maine address?
Maine's rate is always 5.5%, so you don't strictly need to look it up by address. For consistency in your systems, you can enter any address into Sefro's API and it'll confirm the 5.5% rate.
Is SaaS or digital software taxable in Maine?
No, SaaS and digital software are not taxable in Maine. Subscriptions, software licenses, and cloud services do not incur sales tax.
Does Maine have local sales taxes on top of the state rate?
No, Maine has no local sales taxes. The 5.5% state rate is the only sales tax applied statewide.
Handle Maine sales tax with one API call
Skip the rate tables and district lookups. Sefro returns the exact combined rate for any Maine address in one request — start with a free trial.
Rates and rules on this page are provided for general information only and are not tax or legal advice. Rates change; confirm the current rate and your filing obligations with the Maine Department of Revenue or a qualified professional. See our Terms.