Sales tax in Merrimack County, New Hampshire
The sales tax rate in Merrimack County, New Hampshire is 0%. That is a 0% state rate, with no county rate on top: Merrimack County levies none, and it is the same at every address in the county. That rate was read from New Hampshire's own published schedule and checked on August 30, 2026.
What is the sales tax rate in Merrimack County?
| New Hampshire state rate | 0% |
|---|---|
| Combined rate | 0% |
Sales tax in counties next to Merrimack County
Merrimack County borders 6 counties.
| County | Combined sales tax |
|---|---|
| Belknap County, NH | 0% |
| Grafton County, NH | 0% |
| Hillsborough County, NH | 0% |
| Rockingham County, NH | 0% |
| Strafford County, NH | 0% |
| Sullivan County, NH | 0% |
| Merrimack County, NH (this county) | 0% |
Why the rate here is not the whole story
No general sales tax on goods; instead levies an 8.5% Meals & Rentals Tax on prepared food, lodging, and car rentals.
How do I find the exact rate for an address in Merrimack County?
Use New Hampshire's own address lookup.
Who has to collect sales tax in Merrimack County?
Any seller with a physical presence in New Hampshire collects at the rate for the address of the sale; a remote seller does once it passes New Hampshire's economic nexus threshold. New Hampshire sales tax covers the statewide rules and what is exempt.
Work out your own numbers
-
Sales tax calculator
Tax on a specific purchase at this county's rate, and the total you will actually pay.
-
Do you have to collect?
Whether your sales into New Hampshire cross its economic nexus threshold. A different question from the rate.
-
Property tax in Merrimack County
The other local tax: effective rate and median bill for this county.
-
Sales tax by county
Every US county, and how New Hampshire compares with the rest of the country.
Sources
- Merrimack County rates: New Hampshire Department of Revenue Administration / 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).