2026 rates
Maine Sales Tax Calculator
Maine charges a flat 5.50% statewide, with no local sales taxes, so the rate is the same at every address in the state.
Sales tax by city in Maine
| City | Combined rate |
|---|---|
| Portland | 5.50% |
| Lewiston | 5.50% |
| Bangor | 5.50% |
| South Portland | 5.50% |
How Maine sales tax works
Maine charges a single rate of 5.50% statewide with no local additions, which makes it one of the simpler states to sell into. The rate is the same in Portland, Lewiston, Bangor as anywhere else, so you do not need to look up the buyer's city to get the tax right.
That combined rate ranks Maine number 42 of 51 US jurisdictions, 1.07% below the national average of 6.57%.
The major cities in Maine all sit at 5.50%, so the rate does not move much by address within the state.
Owing tax and being required to collect it are separate questions. Maine sets its economic nexus threshold at $100,000 in sales into the state. Below that you generally have no obligation to register; above it you do, and the obligation applies from the point you cross rather than retroactively across the whole year. Check your own sales into Maine against that figure before you register anywhere.
Rates below are the published 2026 figures. Local rates change more often than state rates, so verify with the Maine revenue authority for a transaction of any size, and remember that the rate is only one input: whether the product is taxable at all, and whether shipping is taxable, both vary by state.
Maine sales tax questions
What is the sales tax rate in Maine?
The state rate is 5.50%. With local additions averaging 0%, the typical combined rate is 5.50%.
Does Maine have local sales taxes?
No. Maine applies a single rate statewide, so the rate does not change by city or county.
When do I have to register for sales tax in Maine?
Once your sales into Maine pass $100,000 you cross the economic nexus threshold and are generally required to register and collect. Below that there is usually no obligation.
How do I work out sales tax backwards from a total?
Divide the tax-inclusive total by one plus the combined rate to recover the pre-tax price, then subtract. At 5.50% you divide by 1.0550. The main calculator has a reverse mode that does this.
Is sales tax charged on shipping in Maine?
It depends on how the charge is presented and whether the items are taxable. Some states tax shipping when it is part of a taxable sale and others do not. Confirm the current position with the Maine revenue authority before setting it in your checkout.
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