Sales tax in Aroostook County, Maine
The sales tax rate in Aroostook County, Maine is 5.5%. That is a 5.5% state rate, with no county rate on top: Aroostook County levies none, and it is the same at every address in the county. That rate was read from Maine's own published schedule and checked on August 30, 2026.
What is the sales tax rate in Aroostook County?
| Maine state rate | 5.5% |
|---|---|
| Combined rate | 5.5% |
How much sales tax is that on a purchase in Aroostook County?
At 5.5%, a $100 purchase carries $5.50 in sales tax and a $1,000 purchase $55.00. That is general merchandise; Maine taxes some categories, often groceries, differently, as the note below explains.
Every county in Maine has the same 5.5% floor. See every Maine county.
Sales tax in counties next to Aroostook County
Aroostook County borders 4 counties.
| County | Combined sales tax |
|---|---|
| Penobscot County, ME | 5.5% |
| Piscataquis County, ME | 5.5% |
| Somerset County, ME | 5.5% |
| Washington County, ME | 5.5% |
| Aroostook County, ME (this county) | 5.5% |
Why the rate here is not the whole story
No local sales taxes anywhere in the state; groceries and prescription drugs are exempt, but a separate 8% tax applies to prepared food and lodging.
How do I find the exact rate for an address in Aroostook County?
Use Maine's own address lookup.
Who has to collect sales tax in Aroostook County?
Any seller with a physical presence in Maine collects at the rate for the address of the sale; a remote seller does once it passes Maine's economic nexus threshold. Maine sales tax covers the statewide rules and what is exempt.
Work out your own numbers
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Sales tax calculator
Tax on a specific purchase at this county's rate, and the total you will actually pay.
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Do you have to collect?
Whether your sales into Maine cross its economic nexus threshold. A different question from the rate.
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Property tax in Aroostook County
The other local tax: effective rate and median bill for this county.
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Sales tax by county
Every US county, and how Maine compares with the rest of the country.
Sources
- Aroostook County rates: Maine Revenue Services / Tax Foundation, State and Local Sales Tax Rates (Jan. 2026)
- Collected and verified August 30, 2026. Confidence: S on the rate components (P read on a primary agency page, S strong but indirect, U unverified).